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FullContact

Data Enrichment

Last reviewed: March 2026

Identity resolution and contact enrichment for martech teams

fullcontact.com
fullcontact.com
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About FullContact

FullContact is an identity resolution and enrichment platform that helps brands recognize their customers across channels and devices. It takes fragmented identifiers (email, phone, social handle, address) and resolves them into unified person and company profiles.

The platform is primarily used by marketing technology teams, AdTech companies, and customer data platforms that need to enrich and unify customer records. Its APIs return demographic, psychographic, and social data for person profiles.

FullContact has shifted from a general-purpose contact enrichment tool to a more specialized identity resolution platform. This makes it a strong fit for martech use cases but less suitable for sales prospecting compared to purpose-built sales intelligence tools.

Key Features

Identity resolution across emails, phones, and social handles
Person enrichment with demographic and social data
Company enrichment with firmographic details
Multi-touch identity graph for cross-channel recognition
Real-time enrichment APIs
Privacy-compliant data partnerships
Customer recognition for known and anonymous visitors
Batch enrichment for large datasets

Pricing

FullContact offers custom pricing based on match volume and use case. Free tier available with limited matches. Contact sales for specific pricing. Previously offered plans starting around $99/mo.

Pros and Cons

Pros
  • Strong identity resolution across multiple identifiers
  • Good for unifying fragmented customer data
  • Privacy-focused approach to data enrichment
  • Real-time APIs with good documentation
  • Works well within martech and AdTech stacks
Cons
  • Shifted focus away from sales prospecting
  • Pricing is not transparent or self-serve
  • Limited phone number data for B2B use cases
  • Company enrichment is less detailed than competitors
  • Not designed for sales team workflows

Best For

Marketing technology and AdTech teams that need identity resolution and customer enrichment across channels

Try Enrich instead

Credit-based data enrichment API with no per-seat fees. 100 free credits to get started, no credit card required.