
Guides
Identity Graph Companies: 2026 Provider List
Identity graph companies fall into three groups: adtech consumer graphs (LiveRamp, Experian, TransUnion), CDP first-party graphs, and B2B person-level graphs.
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Identity graph companies fall into three groups: adtech consumer graphs (LiveRamp, Experian, TransUnion), CDP first-party graphs, and B2B person-level graphs.

An identity graph links emails, device IDs, cookies and IPs to one person, household or company. See a worked example, the main types and how marketers use it.