Customer Identity Resolution · Vendor file
FullContact
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FullContact Identity Resolution allows businesses to recognize an individual person, in real-time, by connecting various identifiers from their digital interactions.
Active · verified September 2026
Categories FullContact serves
The B4 Index places FullContact in 3 categories. Each category page lays out the build-versus-buy considerations for that decision.
Customer Identity Resolution Primary $99-499/mo
B2B Contact & Company Data Enrichment Usage-based API; enterprise custom
The B4 Index scores every software category on two axes, strategic differentiation and AI feasibility, to
classify it Build, Buy, Bridge, or Beware. Vendor facts here are independent of that call. See the full
methodology.