8 Best Lead Enrichment Tools for Data Completeness in 2026
We tested 15+ lead enrichment platforms to find the best for completing your contact and company data. These tools transform basic email addresses into full profiles with firmographics, technographics, and contact details - the context you need for personalized outreach.
Clearbit is the industry standard for real-time enrichment. Pass an email address and get back 100+ attributes including company firmographics, technographics, and social profiles. The Reveal product identifies anonymous website visitors. Native HubSpot integration makes it seamless for HubSpot users.
Starting priceFree
Strengths
Real-time enrichment
100+ data points
Reveal visitors
HubSpot native
Excellent API
Limitations
Expensive at scale
Match rates vary
No phone numbers
HubSpot-focused
Who it's for: Best for teams needing real-time enrichment with deep firmographic data.
ZoomInfo offers the deepest B2B database for enrichment. Get contact details, company firmographics, technographics, org charts, and intent signals. The FormComplete feature enriches form submissions in real-time to reduce friction.
Starting priceCustom
Strengths
Deepest database
Intent data included
Technographics
Org charts
FormComplete
Limitations
Expensive
Annual contracts
Complex pricing
Overkill for SMBs
Who it's for: Best for enterprise teams needing comprehensive enrichment with intent signals.
Apollo offers solid enrichment bundled with prospecting and outreach tools. Upload a list of emails and get back phone numbers, titles, company info, and more. The generous free tier includes enrichment credits - rare for this category.
Starting priceFree
Strengths
Free enrichment tier
Phone + email
Built-in sequences
Bulk upload
Affordable
Limitations
Less depth than Clearbit
Accuracy varies
Match rates lower
Limited firmographics
Who it's for: Best for teams wanting enrichment bundled with outreach at an affordable price.
Cognism specializes in GDPR-compliant enrichment for European markets. Phone-verified mobile numbers are human-verified for accuracy. Intent data shows active buyers. Strong choice for teams selling into Europe.
Starting priceCustom
Strengths
GDPR compliant
Phone verified
Strong in Europe
Intent signals
Good accuracy
Limitations
Premium pricing
Smaller US data
Annual contracts
Setup required
Who it's for: Best for teams needing compliant enrichment for European prospects.
Leadfeeder takes a different approach - it identifies anonymous website visitors and enriches them with company data. See which companies visit your site, what pages they view, and get contact suggestions for outreach.
Starting priceFree
Strengths
Visitor identification
Real-time alerts
CRM integration
Contact suggestions
Free tier
Limitations
Company-level only
No individual ID
Requires website traffic
Limited contact data
Who it's for: Best for teams with website traffic who want to identify and enrich visitor companies.
People Data Labs offers massive scale at developer-friendly pricing. Their 1.5B+ person dataset is accessible via API for bulk enrichment. Pay per record with no monthly minimums. Built for developers and data teams.
Starting price$0.03/rec
Strengths
Massive database
Developer-friendly
Per-record pricing
Bulk API
No minimums
Limitations
API-only
No UI for business users
Accuracy varies
Technical setup required
Who it's for: Best for developer teams who want bulk enrichment via API at scale.
FullContact specializes in identity resolution - matching fragments of data to complete profiles. Great for unifying customer data across sources. Social profile enrichment adds LinkedIn, Twitter, and other profiles.
Starting priceCustom
Strengths
Identity resolution
Person matching
Social profiles
CDP integration
Real-time API
Limitations
Complex use case
Custom pricing
B2C focused
Learning curve
Who it's for: Best for teams needing identity resolution across fragmented customer data.
Clay orchestrates enrichment from 75+ data sources with AI-powered research. Waterfall enrichment tries multiple sources until data is found. AI agents research prospects and write personalized messages. The future of enrichment automation.
Starting price$149/mo
Strengths
75+ data sources
Waterfall enrichment
AI research
Personalization
Automation
Limitations
Expensive
Complex setup
Learning curve
Overkill for basics
Who it's for: Best for teams wanting cutting-edge enrichment automation with AI research.
We tested each platform for data accuracy, coverage, and integration quality.
Data Accuracy (30%) — How accurate and up-to-date the enriched data is.
Data Coverage (25%) — Breadth and depth of available data points.
Match Rate (20%) — Percentage of records successfully enriched.
Integration Quality (15%) — CRM and marketing tool connections.
Pricing (10%) — Cost per enriched record.
How to Choose
Choose Clearbit if you need real-time enrichment.
Choose ZoomInfo if you need deepest data coverage.
Choose Apollo.io if you need budget-friendly option.
Choose Cognism if you need GDPR compliance.
Choose Leadfeeder if you need website visitor ID.
Choose Clay if you need AI-powered automation.
Common Questions
Common data points include: job title, company name, company size, industry, location, phone number, LinkedIn URL, technographics (tools they use), and firmographics (revenue, funding, employee count). Premium tools add intent signals and org charts.
Top tools claim 85-95% accuracy for firmographic data. Contact data like phone numbers is less reliable - expect 70-80% accuracy. Data freshness matters too - people change jobs and companies change. Always verify critical data before outreach.
Real-time enrichment is best for form submissions and high-value leads - you want that data immediately. Batch enrichment works for cleaning existing databases or processing large lists. Many tools offer both options.
