Best 15 Lead Enrichment APIs in 2025 [w/ Feature Comparison Table]

Sales teams waste hours hunting contact data. The right lead enrichment API transforms that manual grind into automated intelligence.

Let’s explore the top tools that turn basic leads into actionable insights.

Feature comparison table

Tool	Data Sources	Row/Export Limits	Builder License Cost	AI Functionality	Refresh Frequency	Alerts	Security
Hunter.io	100+ sources	2,500-25,000/month	Free-$49/month	Auto-verification	Real-time	Email tracking	GDPR compliant
Apollo.io	700M+ contacts	100-6,000 credits/month	Free-$119/user/month	AI lead scoring	Real-time	Multi-channel	SOC 2 Type II
Lusha	280M contacts	40-600 credits/month	Free-$52.45/month	AI automations	Daily streaming	Email/Slack	GDPR & CCPA
Snov.io	Real-time enrichment	50-20,000 credits	Free-$149/month	Email warm-up	Real-time	Campaign alerts	GDPR compliant
RocketReach	700M+ profiles	100-7,000 lookups	$48-$199/month	AI recommendations	Real-time	Not specified	Enterprise-grade
FullContact	150+ sources	1,000-10,000 credits	$99-$499/month	Identity resolution	Real-time	Custom alerts	GDPR & CCPA
Kaspr	500M+ contacts	15-custom credits	Free-$79/user/month	Not specified	Real-time	Not specified	GDPR compliant
ZoomInfo ReachOut	250M+ contacts	Custom	$14,995+ annually	Intent signals	Real-time	Custom alerts	Enterprise security
Apollo.io Pro	250M+ contacts	2,500-6,000 credits	$49-$119/user/month	AI sequences	Real-time	Multi-channel	SOC 2 Type II
Lusha Premium	Global database	480-960 credits	$29-$51/user/month	Not specified	Real-time	Not specified	GDPR compliant
Breeze Intelligence	250+ sources	100-10,000 credits	$45-$700/month	AI insights	Real-time	HubSpot native	Enterprise-grade
Hunter.io Pro	Domain-based	2,000-25,000 credits	$49-$299/month	Confidence scoring	Real-time	Campaign tracking	GDPR compliant
Cognism	Phone-verified	Custom	$15,000+ annually	Intent data	Real-time	Custom alerts	GDPR compliant
RocketReach Pro	35M companies	125-3,600 lookups	$80-$150/month	Technographic data	Real-time	Not specified	Enterprise security

Hunter.io

Hunter.io combines email discovery with campaign management. The platform finds professional email addresses from domain names and verifies their accuracy, serving sales teams and recruiters who need reliable contact data.

Highlights of Hunter.io

Hunter.io delivers a lead enrichment API with 100+ attributes for comprehensive contact profiling. The platform maintains 99.9% uptime with reliable API performance and fast data processing.

Additional standout features include:

• Auto-verification system validating email addresses in real-time
• Domain search capabilities finding all email addresses associated with company domains
• Chrome extension for seamless LinkedIn and website prospecting

Pros

• Transparent pricing without contracts. Hunter offers clear credit allocations and predictable costs. Teams can budget and scale without hidden fees or complex negotiations.
• High email accuracy with confidence scores. The platform maintains strong data quality. Each email address includes confidence scores, helping users focus on the most reliable contacts.
• All-in-one outreach platform. Beyond finding emails, Hunter includes campaign management, email warm-up, and detailed analytics. Everything works together in one platform.

Cons

• Limited phone number coverage. Hunter focuses primarily on email addresses. The platform doesn’t provide extensive phone number databases like competitors.
• Credit consumption burns fast. Users report burning through credits faster than expected. Bulk verification features particularly accelerate credit usage.
• Recent functionality changes reduced quality. Long-term users report that recent updates to email/domain search reduced result volume. The quality of results also declined compared to previous versions.

Pricing

Hunter.io offers transparent pricing with a forever-free plan. As of February 2025, the Starter plan costs $49/month (1,000 credits, 2,500 email recipients). Growth costs $149/month (5,000 credits, 10,000 recipients). Scale costs $299/month (10,000 credits, 20,000 recipients). Annual billing provides a 30% discount.

What do users say about Hunter.io?

Positive Review: “Hunter is a no fuss – does what you need email search engine. Excellent finds on brand emails I need for my business. Thank you Hunter for helping me build my business.” – Trustpilot user

Critical Review: “I was a regular user until Hunter.io made changes to their email/domain search functionality, which significantly degraded the user experience. The tool no longer returned the volume or quality of contact data it once did, making it basically unusable for my needs.” – Trustpilot user

Support

Hunter.io provides multiple support channels. Email support reaches [email protected]. Live chat operates through their platform. Phone support connects at (844) 940-0955.

They offer priority support for paid plans. The Help Center includes tutorials and GIFs. Regular webinars provide customer training. Response times typically fall within 2-4 hours for email support.

Apollo.io

Apollo.io delivers AI-powered sales intelligence with automated outreach. The platform combines a massive B2B database with email sequences and sales analytics, serving growing sales teams who need comprehensive automation tools.

Highlights of Apollo.io

The platform houses 700+ million contacts in a constantly updated B2B database. AI-powered lead scoring and conversation intelligence enable smarter prospecting.

Key features include:

• Multi-channel sequences supporting email, LinkedIn, and phone outreach
• Built-in dialer with call recording and AI insights (4,000-8,000 minutes per plan)
• 99.9% uptime with fast API performance

Pros

• Comprehensive sales platform integration. Apollo combines prospecting, enrichment, outreach, and analytics in one platform. Teams reduce tool sprawl and achieve seamless workflow integration.
• Competitive pricing beats enterprise alternatives. Starting at $49/user/month annually, Apollo offers significant value. The platform provides ZoomInfo-like functionality at a fraction of the cost.
• Strong G2 recognition validates quality. Apollo ranks #1 in multiple G2 categories. With 8,800+ reviews averaging 4.7/5, user satisfaction runs high.

Cons

• Credit system creates unexpected costs. Different actions consume varying credit amounts. The complexity makes it difficult to predict actual usage costs.
• Data accuracy shows inconsistencies. Users report verified emails with high bounce rates. Contact information doesn’t always match LinkedIn profiles, particularly in niche markets.
• Poor Trustpilot ratings raise concerns. Despite strong G2 reviews, Apollo holds a 2.3/5 Trustpilot rating. Users cite data privacy concerns, billing issues, and unresponsive customer service.

Pricing

As of February 2025, Apollo.io offers a Free plan with 100 credits monthly. Basic costs $49/user/month annually (2,500 credits). Professional costs $79/user/month annually (4,000 credits). Organization costs $119/user/month annually (6,000 credits, minimum 3 users). Monthly billing typically costs 20% more than annual plans.

What do users say about Apollo.io?

Positive Review: “The data quality and accuracy is exceptional. I have used Zoominfo and the data accuracy in this matches up with Zoominfo at a fraction of the price. I also like that you can create and save search strings to run them again in the future if needed.” – G2 Sales Team Lead

Critical Review: “Apollo makes things pretty straightforward and easy to use. However, the 2 main issues I keep running into are with verified emails not being accurate + email signatures not showing up on emails. I’ve seen zero results from email campaigns.” – Trustpilot user

Support

Apollo.io offers multiple support channels. Live chat operates during business hours. Email support and a comprehensive knowledge base provide additional help.

Users access support through the question mark icon in their dashboard. This provides both self-service articles and direct contact options. Response times vary—some users praise support quality while others report issues with AI-driven responses and slow resolution.

Lusha

Lusha specializes in verified contact data and lead enrichment services. The platform provides direct access to professional email addresses, phone numbers, and company information through its Chrome extension and web application.

Highlights of Lusha

Lusha maintains 280 million verified contacts with 100 million newly added profiles as of February 2025. Daily lead streaming automatically delivers qualified prospects to user dashboards.

Notable features include:

• AI-powered sales automations building pipeline automatically
• Real-time signals API for perfect outreach timing
• GDPR and CCPA compliant data collection

Pros

• Browser extension works seamlessly. Lusha’s Chrome extension integrates with LinkedIn and Sales Navigator. Users find contact information directly on prospect profiles with one click.
• High data accuracy with confidence scoring. The platform provides verified contact data with real-time validation. Teams avoid bounced emails and wrong numbers.
• Simple pricing beats credit complexity. Unlike credit-based competitors, Lusha offers straightforward monthly pricing. Teams can predict and budget costs more easily.

Cons

• Expensive for small teams. Pro plans start at approximately $30/user/month. Costs quickly escalate for larger teams compared to bulk credit alternatives.
• Limited bulk enrichment capabilities. Users report difficulties with large-scale data processing. The platform optimizes for individual lookups rather than mass enrichment.
• Poor Trustpilot reputation raises flags. Despite good G2 ratings (4.3/5), Lusha holds a 1.4/5 Trustpilot rating. Users cite GDPR concerns, unauthorized data collection, and poor customer service.

Pricing

As of February 2025, Lusha offers a Free plan with 40 credits monthly. Pro costs $22.45/month annually (250 credits, 1-3 seats). Premium costs $52.45/month annually (600 credits, 2-5 seats). Scale offers custom pricing for 5+ users. Annual billing provides approximately 25% savings over monthly plans.

What do users say about Lusha?

Positive Review: “Lusha, cuts to the chase so to speak. Allowing you as a Business Developer to ensure you have the straightest, quickest path to having a conversation with a Decision Maker. Its as simple as that.” – Trustpilot user

Critical Review: “Lusha have shared my personal phone number to who knows how many businesses. I have opted out via the telephone preference service as well as following their lengthy opt out process, yet I am still receiving calls.” – Trustpilot user

Support

Lusha provides customer support through multiple channels. Email, live chat, and a detailed knowledge base serve users. Enterprise customers receive dedicated account management and personalized onboarding support.

Users contact Lusha through their contact form at lusha.com/contact-us. Reviews indicate mixed experiences with response times and issue resolution.

Snov.io

Snov.io combines lead generation, email finding, verification, and multi-channel outreach. The platform focuses on providing an all-in-one solution for cold email campaigns, LinkedIn automation, and CRM integration.

Highlights of Snov.io

Real-time data enrichment API launched in August 2025 enables seamless CRM synchronization. LinkedIn automation handles personalized connection requests and messaging sequences.

Additional capabilities include:

• Multi-channel campaigns combining email, LinkedIn, and phone outreach
• Built-in CRM with lead management and pipeline tracking
• Email warm-up technology improving deliverability

Pros

• All-in-one platform reduces tool sprawl. Snov.io combines email finding, verification, campaigns, LinkedIn automation, and CRM functionality. Teams eliminate multiple subscriptions.
• Transparent pricing simplifies budgeting. Unlike credit-heavy competitors, Snov.io offers clear monthly plans. Defined limits make costs easier to predict.
• Strong customer support delivers results. Users consistently praise Snov.io’s responsive service team. Many highlight quick response times and helpful solutions.

Cons

• Credit consumption accelerates costs. Users burn through credits faster than expected. With 2 credits required per verified lead, actual costs exceed initial estimates.
• Limited database coverage in niches. The platform shows weaker coverage in certain industries and geographies. Larger competitors like Apollo or ZoomInfo offer better niche data.
• LinkedIn automation adds significant expense. LinkedIn slots cost an additional $69/month each. Multi-channel campaigns significantly increase total costs.

Pricing

As of February 2025, Snov.io pricing starts with a Free trial (50 credits, 100 email recipients). Starter costs $39/month (1,000 credits, 5,000 recipients). Pro costs $99/month (5,000 credits, 10,000 recipients). Pro 20K costs $149/month (20,000 credits, 30,000 recipients). LinkedIn automation slots cost an additional $69/month each.

What do users say about Snov.io?

Positive Review: “I’ve been using Snov.io for lead generation, cold outreach, email verification, and drip campaigns — and I couldn’t be more satisfied. The platform is intuitive, everything is easy to read, navigate and use.” – Trustpilot user

Critical Review: “The analytics are inaccurate—emails that land in spam and are never seen are marked as opened (I realized this after sending a test email), while emails that are actually opened are marked as unopened. Their email tracking is extremely unreliable.” – Trustpilot user

Support

Snov.io provides customer support through live chat, email, and a comprehensive knowledge base. The platform earns recognition for responsive customer service with support agents like Fernando and Daniela frequently mentioned in positive reviews.

Users access support directly through the platform’s chat feature. Most inquiries receive responses within hours.

RocketReach

RocketReach provides professional email addresses, phone numbers, and social profiles through one of the world’s largest B2B databases. The platform helps users find accurate contact information for decision-makers across industries.

Highlights of RocketReach

The platform maintains 700+ million professional contacts across 35 million companies globally. A 97% email accuracy rate comes from strong data verification processes.

Key features include:

• 100+ advanced search filters for precise targeting
• AI-powered lead recommendations based on prospecting behavior
• Chrome extension for one-click contact discovery

Pros

• Massive database provides extensive coverage. RocketReach maintains one of the largest professional contact databases globally. Coverage spans industries and regions comprehensively.
• High data accuracy reduces bounce rates. The platform achieves 97% email accuracy through multi-point validation. Regular database updates maintain quality.
• Affordable entry point suits small teams. Plans start at $48/month annually. RocketReach offers competitive pricing for individual users and small teams.

Cons

• Misleading plan descriptions confuse buyers. Users report confusion about credit limits and features. Important details hide in fine print rather than clear advertising.
• Poor customer service frustrates users. Multiple reviews cite unresponsive support and difficulty obtaining refunds. Inflexible policies affect even new customers.
• Data privacy concerns persist. Users frequently complain about personal information listed without consent. Removing data from the platform proves difficult.

Pricing

As of February 2025, RocketReach offers an Essentials plan at $59/month (1,200 annual lookups). Pro costs $119/month (3,500 lookups). Team costs $199/month (7,000 lookups). Enterprise offers custom pricing. Annual billing provides significant discounts, with Essentials available for approximately $48/month when billed annually.

What do users say about RocketReach?

Positive Review: “Talking to the right person is 99% of how to start a successful lead. Before using this as a service I wouldn’t be reaching the appropriate contact at most companies. But now I have the ace in my pocket whenever I need it.” – Capterra user

Critical Review: “I signed up for RocketReach thinking I was getting unlimited contact lookups based on their plan descriptions. Turns out, the Essentials plan only gives you 100 credits, something buried in the fine print and completely at odds with the way it’s advertised.” – Trustpilot user

Support

RocketReach offers support through live chat during business hours. Email reaches [email protected]. A comprehensive knowledge base provides self-service options.

Phone support remains exclusive to enterprise customers or those with specific contract terms. Email responses typically arrive within 24 business hours, though some users report inconsistent response times during peak periods.

FullContact

FullContact specializes in identity resolution and data enrichment. The platform creates unified customer profiles by connecting fragmented data across multiple touchpoints.

Highlights of FullContact

Identity resolution technology connects customer data across channels and devices. Real-time customer recognition identifies website visitors and anonymous traffic.

Additional capabilities include:

• Comprehensive data enrichment with demographics and behavioral insights
• Privacy-safe processing with GDPR and CCPA compliance
• API and native integrations with major CRM platforms

Pros

• Advanced identity resolution connects fragmented data. FullContact excels at unifying customer data across touchpoints. The unified view proves difficult to achieve with other platforms.
• Comprehensive enrichment goes beyond basics. The platform provides extensive profile enrichment including social media accounts and demographics. Professional information extends past basic contact details.
• Strong enterprise features support large organizations. FullContact offers robust API capabilities and dedicated account management. Enterprise-grade security features protect sensitive data.

Cons

• Expensive pricing limits accessibility. Users consistently report high costs. Pricing starts around $99/month for basic plans and reaches $2,000+ for enterprise features.
• Hidden pricing structure frustrates buyers. FullContact doesn’t publish transparent pricing. Sales calls and negotiations frustrate smaller teams.
• Complex setup requires technical expertise. The platform needs technical knowledge and longer implementation times. Simpler contact finding tools offer faster deployment.

Pricing

As of February 2025, FullContact pricing starts at approximately $99/month for Essentials (1,000 credits). Growth costs $299/month (5,000 credits). Pro costs $499/month (10,000 credits). Enterprise plans cost $2,000+ monthly with custom credit allocations. Setup fees range from $500-5,000 depending on the plan.

What do users say about FullContact?

Positive Review: “FullContact is by far the best of the contact managers around today. It’s wide range of features from business card scanning, email scanning, and syncing between services like Google Contacts and others make this the best at what it does.” – Capterra user

Critical Review: “Customer service is responsive and courteous, but they have not resolved any of the issues I’ve reached out about after considerable time and going back and forth with them. They credited me a whopping $1 for my troubles over multiple weeks with this known bug, which felt more like a slap in the face.” – Capterra user

Support

FullContact provides email support and phone support for Pro and Enterprise customers. A comprehensive knowledge base offers self-service options.

Response times typically fall within 2-4 hours for email support during business hours (Monday-Friday, 9am-5pm MST). Enterprise customers receive dedicated account management and priority support channels.

Kaspr

Kaspr delivers European-focused lead enrichment through a LinkedIn Chrome extension and web application. The platform specializes in GDPR-compliant data collection with verified phone numbers and email addresses for over 500 million profiles.

Highlights of Kaspr

The platform accesses 500+ million verified contacts with real-time data from over 150 sources. GDPR-compliant data collection ensures European privacy law adherence.

Notable features include:

• LinkedIn Chrome extension for one-click data extraction
• Bulk enrichment capabilities for CSV upload and mass processing
• Native CRM integrations with HubSpot, Salesforce, and Pipedrive

Pros

• European data coverage excels. Kaspr provides accurate contact data for European markets. Other tools often show limited coverage in these regions.
• Simple browser integration streamlines workflow. The Chrome extension works seamlessly with LinkedIn. Users extract contact data directly from prospect profiles.
• GDPR compliance built from the ground up. Unlike many competitors, Kaspr designed for European privacy regulations. EU-based companies operate more safely.

Cons

• Limited to LinkedIn URLs restricts bulk processing. Users report Kaspr only works with regular LinkedIn URLs. Bulk enrichment becomes nearly impossible for large contact lists.
• Regional coverage gaps affect global teams. While strong in Europe, Kaspr shows weaker data coverage. North American and Asian markets lack comprehensive data.
• Poor customer service reviews raise concerns. Multiple users report unresponsive support. Billing issues and difficulties with refunds and cancellations persist.

Pricing

As of February 2025, Kaspr offers a Free plan with 15 monthly B2B email credits and 5 phone credits. Starter costs $65/user/month. Business costs $79/user/month. Enterprise offers custom pricing for teams of 50+ users. European pricing may show in euros, with Starter at approximately €45/month.

What do users say about Kaspr?

Positive Review: “Very intuitive tool for sales prospecting. The account setup and Chrome extension installation were quick and simple, I was able efficiently target prospects on LinkedIn and enrich my contact lists.” – Trustpilot user

Critical Review: “This service is horrible – we have an account which doesnt work we send several email but no one comes back since month the system doesnt work and we still pay until next year and the customer support is very bad respectively not existing.” – Trustpilot user

Support

Kaspr provides customer support through 24/7 live chat, email support, and a knowledge base. User reviews indicate inconsistent support quality. Some users report excellent service while others cite unresponsive or non-existent customer service.

ZoomInfo ReachOut

ZoomInfo ReachOut delivers premium B2B sales intelligence through its powerful lead enrichment API. The platform combines real-time data verification with advanced search capabilities for enterprise-scale operations.

Highlights of ZoomInfo ReachOut

Advanced Intent Data provides real-time buying signals to identify in-market prospects. The comprehensive database includes 250M+ professional contacts and 100M+ company profiles.

Key capabilities include:

• Robust API for seamless CRM and sales tool integration
• WebSights Technology revealing companies visiting your website
• Technographic data and organizational charts

Pros

• Enterprise-grade data quality leads the industry. ZoomInfo maintains one of the most comprehensive B2B databases. Rigorous verification processes ensure high accuracy rates for contact information and company insights.
• Advanced intent signals identify ready buyers. The platform excels at identifying prospects showing buying intent. Technographic data and behavioral signals help sales teams prioritize high-value opportunities.
• Seamless CRM integration streamlines workflows. Native integrations with Salesforce and HubSpot enable automatic data synchronization. Workflow optimization happens without manual intervention.

Cons

• High cost barrier excludes smaller teams. Starting at approximately $14,995 annually for Professional plans plus per-user costs, ZoomInfo represents significant investment. Smaller teams struggle to justify the expense.
• Credit-based limitations create unexpected costs. The credit consumption model leads to surprises. Each contact export consumes credits that don’t roll over between billing periods.
• Contract complexity frustrates users. Users frequently report challenges with annual contract terms. Billing transparency and customer support responsiveness suffer, particularly for cancellations and refunds.

Pricing

ZoomInfo uses custom pricing based on features, users, and credit consumption. Professional plans start at approximately $14,995 annually. Advanced plans cost around $24,995 annually. Elite plans start from $39,995 annually. API access typically begins at $50,000 annually. As of February 2025, these prices require direct sales consultation for exact quotes.

What do users say about ZoomInfo?

Positive Review: “The functionality of ‘WebSights’ is sensational, as it displays all the companies that come to your website in real time. It provides comprehensive information including page views, session duration, revenue, and employees. Using AI, you can generate and send targeted emails by product/solution/service topic.”

Critical Review: “Very traumatic experience. Paid upfront for credits. Every time we requested data, they delayed until the contract ended. Total scam.”

Support

ZoomInfo provides tiered support based on plan level. Comprehensive onboarding, training sessions, and integration assistance come standard. Elite plan customers receive dedicated account managers and priority support.

The platform offers extensive documentation, webinars, and a knowledge base. Some users report challenges with response times for billing and cancellation requests.

Apollo.io Pro

Apollo.io Pro combines sales intelligence with engagement capabilities in a single solution. The platform serves growing sales teams with over 250 million contacts, built-in email sequencing, and dialer functionality.

Highlights of Apollo.io Pro

The all-in-one platform combines prospecting, enrichment, and outreach. An extensive database includes 250M+ professional contacts with continuous data refresh.

Notable features include:

• Built-in sequences with native email automation and A/B testing
• Chrome extension for LinkedIn integration
• Seamless prospecting workflows

Pros

• Comprehensive features eliminate tool sprawl. Apollo provides end-to-end sales functionality from lead discovery to email outreach. Teams eliminate multiple tools and reduce overall software costs.
• Affordable pricing beats competitors. Starting at $49 per user monthly (annually), Apollo offers competitive pricing. Substantial credits come included, making it accessible for small to medium-sized teams.
• Strong user experience earns praise. The platform receives consistent praise for its intuitive interface. The LinkedIn Chrome extension saves significant time in prospecting workflows.

Cons

• Data quality affects campaign performance. Users frequently report high bounce rates and outdated contact information. Some experience up to 20% email deliverability issues that impact campaign effectiveness.
• Credit consumption depletes quickly. The credit-based model depletes allowances fast. Phone number access and bulk exports lead to unexpected additional costs.
• Platform complexity overwhelms new users. While feature-rich, new users find the platform dense. Significant time investment is required to utilize all capabilities effectively.

Pricing

Apollo.io Pro offers tiered pricing. Basic costs $49/month per user (2,500 credits). Professional costs $79/month per user (4,000 credits). Organization costs $119/month per user (6,000 credits). Annual plans provide 20% discounts. As of February 2025, credit add-ons are available but pricing requires direct inquiry.

What do users say about Apollo.io?

Positive Review: “Apollo beats out any other SEP by housing the data and extracting it from LinkedIn, allowing my team to enroll contacts in sequences much more efficiently. The extension allows a simple button on the side of the screen that you select and it goes to work.”

Critical Review: “We export data and make it meaningful manually (which is also pretty time-consuming): since problems such as actual replies vs not delivered cannot be distinguished in its automatic reports.”

Support

Apollo.io provides email support for all plans. Professional and Organization tiers receive priority support.

Users consistently praise the customer support team. Support goes “out of their way” to help with setup and configuration. The platform offers comprehensive documentation, video tutorials, and regular webinars for user training.

Lusha Premium

Lusha Premium specializes in providing verified email addresses and phone numbers for sales and marketing professionals. The platform focuses on data accuracy with a Chrome extension that integrates seamlessly with LinkedIn.

Highlights of Lusha Premium

The platform achieves 85-90% accuracy rate for contact information. One-click contact reveal works directly from LinkedIn profiles through the Chrome extension.

Key features include:

• Credit-based system with flexible usage model
• Rollover credits on annual plans
• GDPR-compliant data collection and management

Pros

• Excellent data accuracy reduces bounce rates. Users consistently report 85-90% accuracy rates for contact information. This significantly beats many competitors and improves campaign effectiveness.
• User-friendly interface simplifies prospecting. The Chrome extension receives exceptional feedback for simplicity and efficiency. Users capture contact details with a single click from LinkedIn profiles.
• Flexible pricing suits varying volumes. The credit-based model provides predictable costs. Options for annual rollover make it suitable for teams with varying prospecting volumes.

Cons

• Limited advanced features restrict capabilities. Compared to enterprise platforms, Lusha lacks sophisticated filtering options. Intent data and advanced analytics that larger sales teams require are missing.
• Coverage gaps affect niche markets. The platform performs best with large companies and mainstream industries. Specialized sectors, small businesses, or international markets outside North America and Europe show weaker coverage.
• Credit system becomes expensive at scale. Heavy users quickly exhaust monthly credit allowances. The credit-based model becomes expensive for teams conducting high-volume prospecting activities.

Pricing

Lusha Premium pricing includes Pro at $29/month per user (480 credits annually). Premium costs $51/month per user (960 credits annually). Scale offers custom pricing. Monthly billing increases costs by approximately 25%. As of February 2025, API access requires Scale plan with custom quote.

What do users say about Lusha?

Positive Review: “Well the reliability of the data, probably 85% to 90% of their data is correct. No other software can offer this. It has different data than LinkedIn sales navigator, contact information that is not accessible anywhere else.”

Critical Review: “Customer support is poor as it only features a product demo for very high paying customers, and not for the premium plan users. Data accuracy is lag on some use case, some time the data which offered by Lusha is inaccurate and outdated information.”

Support

Lusha provides email support for all plans. Premium and Scale tiers receive priority support.

The support team receives mixed reviews. Some users praise responsiveness while others report delays during peak times. The platform offers a comprehensive help center, video tutorials, and onboarding assistance for new users.

Clearbit Prospector (Breeze Intelligence)

Clearbit Prospector, now Breeze Intelligence following HubSpot’s acquisition, delivers real-time data enrichment. The platform automatically enhances contact and company records with over 100+ firmographic and technographic attributes.

Highlights of Breeze Intelligence

Real-time enrichment provides instant data population from minimal input information. The platform offers 100+ data attributes for comprehensive firmographic and technographic insights.

Additional capabilities include:

• HubSpot native integration within the AI product suite
• API-first architecture with millisecond response times
• Form shortening and buying intent detection

Pros

• Comprehensive data coverage provides deep insights. The platform enriches records with 100+ attributes from 250+ data sources. Company technology stacks, revenue, employee count, and growth signals come standard.
• Real-time performance ensures smooth workflows. API response times in milliseconds ensure smooth user experience. Platform slowdowns disappear, making it ideal for real-time enrichment workflows.
• HubSpot integration offers seamless operation. As a native HubSpot feature, Breeze Intelligence offers seamless integration. Automated enrichment and unified billing work within the HubSpot ecosystem.

Cons

• Limited standalone functionality restricts options. Following the HubSpot acquisition, the platform primarily serves HubSpot users. Teams using other CRM systems face limited accessibility.
• Pricing opacity complicates budgeting. The credit-based pricing model lacks transparency. Costs vary significantly based on usage patterns and HubSpot plan tiers, making budget planning challenging.
• Enterprise-level investment required. Starting at $45/month with only 100 credits, meaningful usage requires substantial investment. Annual commitments often exceed $12,000-$24,000.

Pricing

Breeze Intelligence pricing starts at $45/month (annual) or $50/month (monthly) for 100 credits. Credit packs scale to 1,000 credits ($200-$300/month) and 10,000 credits ($600-$700/month). Full pricing depends on HubSpot plan tier. As of February 2025, custom quotes are required for enterprise usage.

What do users say about Breeze Intelligence?

Positive Review: “Clearbit brings the magic — Clearbit Reveal allows us to give every prospective customer an incredible ‘ah-ha’ moment, which sets our user experience apart from competitors. The seamless API integration helps our customers get up and running quickly.”

Critical Review: “Clearbit’s pricing is opaque and unstable, especially following the HubSpot acquisition. The platform now requires HubSpot subscription which significantly increases total cost of ownership.”

Support

Breeze Intelligence provides support through HubSpot’s customer success team. Professional and Enterprise plans receive account managers.

The platform offers comprehensive API documentation, developer resources, and integration support. Users report generally positive support experiences, though response times vary based on HubSpot plan tier.

Hunter.io Pro

Hunter.io Pro specializes in email finding and verification for businesses. The platform combines email discovery tools with campaign management features through manual search, bulk processing, CSV uploads, and API integration.

Highlights of Hunter.io Pro

Domain-based search finds all email addresses associated with specific company domains. Email verification provides real-time validation with confidence scoring for deliverability.

Key features include:

• Built-in campaign management with tracking and analytics
• Browser-based email discovery through Chrome extension
• Prospecting workflow optimization

Pros

• High email accuracy maintains sender reputation. Hunter.io consistently delivers verified email addresses with confidence scoring. Users avoid bounces and maintain strong sender reputation scores.
• User-friendly interface requires minimal training. The platform receives exceptional praise for its clean, intuitive design. Users quickly find and verify email addresses without extensive training.
• Excellent customer support resolves issues fast. Users consistently highlight Hunter.io’s responsive customer service team. Most inquiries resolve within hours with comprehensive help documentation available.

Cons

• Limited data scope restricts functionality. The platform focuses primarily on email discovery. Comprehensive company data, contact enrichment, or advanced sales intelligence features found in competing platforms are missing.
• Pricing escalates for high-volume needs. While affordable for small teams, costs escalate quickly for organizations requiring high-volume email discovery. Credit consumption accelerates at higher usage levels.
• No LinkedIn integration limits efficiency. Unlike many competitors, Hunter.io doesn’t offer direct LinkedIn integration. Users must manually input names or domains for email discovery.

Pricing

Hunter.io Pro offers Starter at $49/month (2,000 credits). Growth costs $149/month (10,000 credits). Scale costs $299/month (25,000 credits). Annual billing provides 30% discounts. Enterprise plans offer custom pricing for high-volume users. As of February 2025, API access is included in all paid plans.

What do users say about Hunter.io?

Positive Review: “The platform is intuitive, quick to set up, and their customer service is genuinely top tier responsive, knowledgeable, and human. It lets us hit the ground running. What I enjoy most about Hunter is the affordability and the data accuracy.”

Critical Review: “Free features are limited, paid features might be used sporadically. Since it extracts leads from the web, not all websites provide adequate professional emails. Compared to some other tools, it is pricey, even with the free credits.”

Support

Hunter.io provides priority support for all paid plans. Email and chat assistance come standard.

Users consistently rate customer support as excellent. Response times typically fall under 20 minutes. Knowledgeable agents provide clear, actionable solutions. The platform offers extensive help documentation and video tutorials.

Cognism

Cognism delivers B2B sales intelligence with GDPR-compliant contact data focusing on European markets. The platform offers phone-verified mobile numbers, intent data, and CRM enrichment capabilities for enterprise sales teams.

Highlights of Cognism

Phone-verified numbers provide direct mobile contacts with verification for higher connect rates. GDPR compliance ensures EU-compliant data collection and management processes.

Additional features include:

• Intent data integration for buying signals and engagement insights
• Strong European market focus with EMEA region coverage
• Enterprise-grade security and compliance

Pros

• Exceptional data quality beats competitors. Users consistently praise Cognism’s data accuracy, particularly for European contacts. Many report it as superior for phone number reliability and email deliverability.
• Strong compliance framework provides peace of mind. The platform’s GDPR compliance and data privacy practices protect European businesses. Teams targeting EU markets operate safely.
• Excellent customer support drives success. Users frequently highlight Cognism’s responsive customer success team. Proactive account management and comprehensive onboarding support come standard.

Cons

• High entry costs limit accessibility. Pricing starts around $15,000 annually plus $1,500-$2,500 per user. The expense makes it one of the more costly options, potentially prohibitive for smaller teams.
• Limited pricing transparency frustrates buyers. The platform requires custom quotes and sales demos for pricing information. Teams struggle to budget without engaging in lengthy sales processes.
• Geographic limitations affect global teams. While strong in Europe, coverage and data quality may be less comprehensive. North American and Asia-Pacific markets show weaker data compared to region-specific competitors.

Pricing

Cognism uses custom pricing. Platinum plans start around $15,000 annually plus $1,500 per user. Diamond plans cost around $25,000 annually plus $2,500 per user. Enterprise plans range from $30,000-$100,000+ annually. As of February 2025, all pricing requires sales consultation.

What do users say about Cognism?

Positive Review: “Great experience with Cognism. We’ve been using it for several months now, and it has significantly improved our outbound prospecting. The data quality is excellent, accurate contact details, verified emails, and helpful intent insights. What stands out most is the customer success team.”

Critical Review: “Generally, I find Cognism to be a good product; despite the sales pitch, their data is not flawless and sometimes, like other platforms, it’s outdated. The one uber annoyance I have is the mouse-over pop-up that appears whenever the cursor goes over names, preventing you from clicking.”

Support

Cognism provides dedicated customer success managers for all paid plans. Comprehensive onboarding, training, and ongoing support come standard.

Users consistently praise the support team as “friendly, quick, and helpful.” Proactive check-ins and regular product updates keep customers engaged. The platform offers extensive documentation and training resources.

RocketReach Pro

RocketReach Pro specializes in finding verified email addresses and phone numbers for professionals. The platform combines person and company search with Chrome extension functionality and CRM integrations for high-volume prospecting.

Highlights of RocketReach Pro

Bulk lookup capabilities enable CSV upload and batch processing for large contact lists. The Chrome extension provides LinkedIn integration for real-time contact discovery.

Additional features include:

• Technographic data revealing company technology stacks
• Comprehensive API for custom workflows and automation
• Organizational insights for targeted prospecting

Pros

• High email deliverability improves campaigns. Users report bounce rates under 20% with confidence scoring. The most reliable contact information helps identify optimal outreach targets.
• Efficient bulk processing handles volume. The platform excels at handling large contact lists through CSV uploads. Bulk lookup features make it ideal for high-volume prospecting operations.
• LinkedIn integration receives consistent praise. The Chrome extension seamlessly reveals contact details directly from LinkedIn profiles. Workflow disruption disappears.

Cons

• No free plan creates entry barrier. Unlike many competitors, RocketReach requires paid subscription even for basic functionality. Teams can’t test the platform without commitment.
• Steep team pricing escalates quickly. Per-user costs escalate fast for larger teams. Annual commitments are required for best rates with limited flexibility for month-to-month arrangements.
• Support and billing issues frustrate users. Users frequently report challenges with customer support responsiveness. Billing transparency and account management suffer, particularly around cancellations.

Pricing

RocketReach Pro individual plans start at $80/month (125 lookups) or $468 annually. Pro plans cost $150/month (375 lookups) or $1,800 annually. Team plans begin at $83/month per user (3,600 lookups annually). As of February 2025, enterprise pricing starts around $3,000 for 5,000 contacts annually.

What do users say about RocketReach?

Positive Review: “I find RocketReach to be one of the most reliable tools for obtaining accurate contact information for outreach. In most cases, the platform provides complete contact details with high accuracy, and the Chrome extension makes LinkedIn prospecting 3x faster.”

Critical Review: “We paid for a full year but barely used it after 1.5 months. Tried to resolve it early, but customer support ghosted us. About 20% of the emails bounced, which was higher than I expected. They charged my card even after cancellation.”

Support

RocketReach provides email support with response times varying based on plan level. Users report mixed experiences with customer support. Slow response times for billing issues and account management challenges persist.

The platform offers documentation and knowledge base resources. Many users desire more responsive human support.

Breeze Intelligence

Breeze Intelligence represents Clearbit’s evolution following HubSpot’s acquisition. The platform now serves as HubSpot’s native data enrichment solution, automatically enriching contact and company records with comprehensive business intelligence.

Highlights of Breeze Intelligence

Native HubSpot integration builds directly into the AI customer platform. Automatic enrichment provides real-time data population without manual intervention.

Key capabilities include:

• AI-powered insights for lead scoring and buyer intent detection
• Form shortening that reduces fields while capturing comprehensive data
• Machine learning for predictive insights

Pros

• Seamless HubSpot ecosystem eliminates silos. As a native HubSpot feature, Breeze Intelligence offers unparalleled integration. Marketing, sales, and service workflows connect without manual processes.
• AI-enhanced functionality boosts productivity. The platform leverages HubSpot’s Breeze AI for intelligent lead scoring. Automated routing and predictive insights enhance sales team productivity.
• Continuous data updates maintain accuracy. Automatic enrichment ensures contact and company records remain current. Manual intervention disappears while database hygiene and accuracy improve.

Cons

• HubSpot dependency limits flexibility. The platform exclusively serves HubSpot users. Teams using other CRM systems or requiring standalone functionality face inaccessibility.
• Credit-based limitations surprise users. The consumption model leads to unexpected costs. Each enrichment action consumes credits that may not align with actual business value generated.
• Limited standalone features restrict options. Unlike comprehensive sales intelligence platforms, Breeze Intelligence focuses primarily on data enrichment. Advanced prospecting or outreach capabilities are missing.

Pricing

Breeze Intelligence is available to HubSpot Professional and Enterprise customers. Pricing starts at $45/month (100 credits annually) or $50/month (monthly billing). Credit packs scale to 1,000 and 10,000 credits with pricing integrated into HubSpot subscriptions. As of February 2025, exact pricing requires HubSpot consultation.

What do users say about Breeze Intelligence?

Positive Review: “HubSpot’s Breeze AI stands as a groundbreaking advancement in customer experience management. The platform’s strength lies in its ability to combine automation with contextual understanding, enabling businesses to streamline operations while maintaining authentic customer connections.”

Critical Review: “The free version of the Clearbit Platform was sunset April 30, 2025. The credit-based pricing model lacks transparency, and costs can vary significantly based on usage patterns, making budget planning challenging.”

Support

Breeze Intelligence support comes through HubSpot’s customer success organization. Professional and Enterprise customers receive dedicated account managers.

Users receive comprehensive onboarding, training resources, and ongoing support. HubSpot’s established support infrastructure handles all inquiries.

Transform your lead data into revenue

Finding the right lead enrichment API shapes your entire sales process. These tools transform basic contact information into actionable intelligence that drives conversions.

The market offers solutions for every need. Free tools like Hunter.io and Apollo.io provide solid starting points. Premium platforms like ZoomInfo and Cognism deliver enterprise-grade capabilities. Your choice depends on budget, data needs, and integration requirements.

But enriched data only matters if you can act on it effectively. That’s where smart automation makes the difference.

Ready to supercharge your lead enrichment workflow? Get started with Coefficient and bring your enriched data directly into spreadsheets with live connections and powerful automations.

FAQ

What is an enrichment API?

An enrichment API automatically adds missing information to your existing data. It takes basic details like an email address or company name and returns comprehensive profiles with phone numbers, job titles, social profiles, and company information. These APIs connect to vast databases and use machine learning to match and verify data points in real-time.

What is a lead API?

A lead API provides programmatic access to contact and company databases for lead generation. It allows your applications to search for prospects, retrieve contact information, and enrich lead records automatically. Sales teams use lead APIs to find decision-makers, verify contact details, and build targeted prospect lists without manual research.

What is the lead enrichment process?

The lead enrichment process starts with basic contact information like a name or email. The system then searches multiple data sources to find matching records. It verifies and cross-references information across databases. Finally, it returns enriched profiles with additional details like phone numbers, job titles, company data, and social profiles. This entire process typically happens in seconds through automated workflows.

What is an enriched API?

An enriched API combines standard API functionality with enhanced data capabilities. It doesn’t just retrieve raw data—it processes, validates, and augments information before returning it. These APIs provide confidence scores, data freshness indicators, and multiple data points from various sources. They deliver ready-to-use, verified information rather than requiring additional processing on your end.