FullContact Alternatives 2026, Compared Independently
Identity Resolution · 8 compared · Updated
No vendor pays to appear or rank here. Alternatives are ordered by our reviewed relationships, then shared capabilities.
FullContact is now part of Ziff Davis (closed Oct 2024). Source · In the Martech Market Report
Looking to replace FullContact? These are the 8 closest Identity Resolution alternatives we track, ranked by approved relationship and then by capability overlap — the closest matches come first.
- Closest match
- SAP Customer Data Cloud
- Direct replacements
- 8 compared
- Pricing
- Usage-based · Free tier available · Custom
- Typical switching effort
- High
No referral fees. Ordering is by approved relationship, then capability overlap. Nobody pays for a place in it.
What FullContact is, in short
FullContact operates in the identity resolution and data enrichment segment between customer data infrastructure and advertising activation. Its core products resolve fragmented identifiers such as email addresses, phone numbers, names, cookies, and mobile advertising IDs into persistent person or household-level profiles, then append demographic, behavioral, and audience attributes for downstream marketing and analytics use. Its main strengths are API-oriented identity matching, person-level enrichment, audience development, and support for privacy-conscious first-party data strategies. It is a better fit for brands, agencies, publishers, and data platforms that need an identity graph or enrichment layer rather than a full customer data platform.
Compared with LiveRamp, FullContact is more focused on identity resolution and enrichment APIs than on a broad activation network; compared with Experian Marketing Services and Acxiom, it is generally more developer-oriented and less dependent on large managed-data services; compared with Neustar Fabrick, it offers a narrower but more composable identity capability. Buyers should evaluate FullContact when identity stitching, profile enrichment, and audience interoperability are the primary requirements and the organization already has a warehouse, CDP, or activation stack. Buyers seeking end-to-end journey orchestration should look at alternatives such as LiveRamp, Segment, or a full CDP. Before purchase, validate match rates by identifier and geography, data provenance and refresh cadence, consent and deletion workflows, coverage outside the United States, downstream activation destinations, API latency and volume limits, and the post-acquisition product roadmap under Ziff Davis.
FullContact alternatives compared
Ranked by relationship first — a tool approved as a direct replacement outranks one that merely shares capabilities. Tools judged to be complements to FullContact are excluded, because running both is not the same as replacing it. Direct-replacement verdicts were checked by hand; the one-line verdicts were drafted by an AI model, and most partial-overlap verdicts were accepted on its confidence.
Scroll the table sideways for switching effort and pricing →
| Vendor | Shared capabilities with FullContact | Switching effort | Pricing | Also strong in | Compare |
|---|---|---|---|---|---|
 SAP Customer Data Cloud 4 core capabilities | Partial overlap Audience Segmentation Consent-aware Profile Management Data Enrichment +2 more Both can resolve and unify customer identities, but FullContact focuses on identity data while SAP Customer Data Cloud also manages consent, profiles, and activation. | High | Usage-based | Consent Management (CMP) | About SAP Customer Data Cloud |
 Tilores 3 core capabilities | Partial overlap Data Unification / Profile Stitching Identity Resolution / ID Graph Real-time Profile API FullContact combines identity resolution with external data enrichment, while Tilores focuses more on real-time entity resolution and master data. | Medium | Free tier available | — | About Tilores |
 Amperity 16 core capabilities | Audience Segmentation Data Enrichment Data Unification / Profile Stitching +2 more | — | Custom | Predictive Scoring / Propensity Audience Activation / Sync | About Amperity |
 Aqfer 10 core capabilities | Audience Segmentation Cross-device Matching Data Enrichment +2 more | — | Estimate $180,000–$264,000 per 12 months | Event Routing Composable / Warehouse-native CDP | About Aqfer |
 Audience Acuity 8 core capabilities | Audience Segmentation Data Enrichment Data Unification / Profile Stitching +2 more | — | Custom | Ad Targeting / Retargeting Audience Activation / Sync | About Audience Acuity |
 Celebrus 6 core capabilities | Audience Segmentation Cross-device Matching Data Enrichment +2 more | — | Estimate from about $0.8 million per year | Event Routing Visitor Identification | About Celebrus |
 Customers.ai 10 core capabilities | Audience Segmentation Data Enrichment Data Unification / Profile Stitching +1 more | — | Custom | Audience Activation / Sync Visitor Identification | About Customers.ai |
 Experian Marketing Services 10 core capabilities | Audience Segmentation Cross-device Matching Data Enrichment +3 more | — | Custom | Audience Activation / Sync Ad Targeting / Retargeting | About Experian Marketing Services |
What to look for in a FullContact alternative
FullContact’s core capabilities — check each alternative for coverage of these before shortlisting:
- Identity Resolution / ID Graph
- Data Enrichment
- Audience Segmentation
- Data Unification / Profile Stitching
FullContact alternatives — FAQ
What is the best alternative to FullContact?
SAP Customer Data Cloud is the closest match among the 8 Identity Resolution alternatives we track. The two records share 5 core capabilities (Audience Segmentation, Consent-aware Profile Management). Both can resolve and unify customer identities, but FullContact focuses on identity data while SAP Customer Data Cloud also manages consent, profiles, and activation. The right choice depends on your existing stack — compare all 8 in the table above.
What should I look for in a FullContact alternative?
FullContact’s core strengths are Identity Resolution / ID Graph, Data Enrichment, Audience Segmentation. Prioritise alternatives that cover the capabilities you actually use, and that integrate cleanly with the rest of your stack — a replacement that doesn’t connect to your warehouse, CDP, or activation tools isn’t really a replacement.
How much do FullContact alternatives cost?
Pricing varies — alternatives here range across Usage-based, Free tier available, Custom, Estimate $180,000–$264,000 per 12 months. Check each vendor’s page for current rates.
How hard is it to migrate off FullContact?
Across the alternatives on this page, the typical switching effort is high. Expect to re-implement instrumentation, rebuild audiences or tests, and run both tools in parallel during cutover. The switching-effort column above shows the per-vendor judgement.
Can I compare FullContact and SAP Customer Data Cloud side by side?
Yes. Drop both onto a canvas in Martech Stack Builder and see how each integrates with your warehouse, CDP, and activation tools — then score them against your actual requirements before deciding.
Compare the rest of the field
Evaluating more than one? Each alternative above has its own ranked comparison. They follow the approved relationships rather than the category, so they cross categories where the tools compete.
Before you replace FullContact, check what you already own
Teams usually find the overlap is not where they expected. Name the tools you run and the Instant Stack Audit maps which ones duplicate capability — inside Identity Resolution and across the rest of the stack.
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Browse all Identity Resolution vendors
Stack Builder’s Identity Resolution page compares every vendor we track in this category, with capabilities, pricing, and a head-to-head for the closest pairs.
View all Identity Resolution vendors →Evaluating FullContact alternatives? Do it in your stack’s context.
Drop FullContact and the alternatives onto a canvas, see how they integrate with what you already have, and score them against your actual requirements — not a generic feature list.
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