For data and marketing ops teams stitching together customer records, FullContact is an identity resolution platform that matches emails, phone numbers, and device IDs to a single customer profile across every touchpoint and system.
Presence & Market Position
Tracked · below panel floor — earned mentions are accruing toward the next scored window.
Measures earned, engagement-weighted share of voice across the GTM voices panel. Methodology →
FullContact is positioning itself as the identity-resolution layer for teams that need email, phone, and device data to resolve into a single customer profile. Its market presence is early in the GTM conversation, with the clearest practitioner context placing it alongside CRM enrichment tools. The strategic role is foundational: reduce fragmented identity data before marketing operations, analytics, or customer-engagement systems act on it. By connecting identifiers across touchpoints and systems, FullContact supports a more consistent account and customer view for teams that rely on clean records downstream.
RocketReach
Adapt
Wappalyzer
Store Leads
HG InsightsSierra Club, Concord Direct
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Business Profile
FullContact started in Denver in 2010 as a developer-first contact enrichment API, matching social and public data to fill in customer records for CRMs and sales tools, before pivoting toward enterprise identity resolution with its Resolve product in 2020. Ziff Davis acquired the business in the fourth quarter of 2024, folding it in as the identity resolution unit of its martech portfolio alongside Moz, Campaigner, and iContact. The product, API, and roughly 60-person team continue operating under that umbrella, with FullContact having raised $55.3M prior to the acquisition and last reporting $17.1M in annual revenue.
Agent Readiness
Measures how easily your agents can build on it — API, MCP, CLI, SDK, docs depth. Methodology →
FullContact pairs its identity-resolution API with an MCP server that gives Claude, OpenAI, Cursor, Windsurf, Copilot, and Gemini direct query access to resolved customer and prospect profiles. Shipped agent use cases center on lead grading and routing, CRM data hygiene, high-velocity prospecting, and winback campaigns, extending an existing developer-first API rather than building a separate agent product. The MCP server is available today as a customer preview, ahead of general release.
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