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https://www.fullcontact.com/FullContact: Identity Resolution for AI-Ready Customer Profiles
FullContact is an identity resolution platform designed to help businesses build accurate, real-time customer profiles by unifying fragmented data from multiple sources. Rather than a traditional contact manager, it focuses on resolving identities across devices, channels, and datasets to create a single, persistent customer view—particularly valuable for AI agents and data-driven marketing systems.
The platform’s core offering centers on three primary products: Acumen for lead identification, Resolve for identity stitching, and Enrich for appending hundreds of data attributes to customer records. These tools work together to transform isolated data points—such as email addresses, phone numbers, or cookie IDs—into unified, actionable profiles.
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Try ToolSuite NowAcumen Lead Identification enables businesses to detect high-intent visitors on their websites by analyzing behavioral and firmographic signals. It identifies anonymous traffic and links it to known customer identities, allowing for timely outreach and personalized engagement.
Resolve is the engine behind FullContact’s identity graph. It takes fragmented identifiers—like login emails, device IDs, or loyalty numbers—and deterministically or probabilistically matches them to create a single, dynamic customer record. This process supports cross-device tracking and ensures consistency across marketing, sales, and service systems.
Enrich adds depth to resolved profiles by appending over 900 unique data attributes, including job title, company, social media profiles, purchase behavior, and demographic insights. This enrichment layer helps businesses understand not just who a customer is, but how they behave and what they value.
FullContact emphasizes privacy-safe data practices, positioning itself as a trusted intermediary that enables personalization without exposing raw personally identifiable information (PII). The platform supports compliance with data protection regulations by allowing businesses to maintain control over their first-party data while still benefiting from enriched insights.
The company primarily serves MarTech and AdTech platforms, consumer brands, and publishers. For ad tech platforms, FullContact enables true single customer views that power personalization, media amplification, and accurate attribution. Consumer brands use it to deliver relevant, real-time interactions without handling PII directly. Publishers leverage its capabilities to convert anonymous website traffic into precise audience segments by connecting online and offline data, improving match rates up to 85% while preserving privacy.
Integration is facilitated through APIs and pre-built connectors, allowing businesses to embed FullContact’s identity resolution into existing CRM, CDP, or marketing automation workflows. The platform highlights minimal setup complexity, particularly for AI agents requiring reliable, real-time customer context.
While FullContact does not disclose pricing publicly, it positions its value in enabling AI-ready data foundations—critical for intelligent agents that depend on accurate, unified customer information to function effectively. The platform’s focus on identity resolution distinguishes it from simpler contact enrichment tools by addressing the underlying challenge of entity resolution across disparate data systems.
Organizations considering FullContact should evaluate their data maturity, identity resolution needs, and compliance requirements. It is best suited for businesses with complex data ecosystems seeking to improve customer recognition, personalization, and AI agent performance—not for those seeking basic contact list management or low-cost enrichment alone.
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