Category
Enrichment - Contact
Rating
4.5/5 (1348 Reviews)
Availability
HQ
London, United Kingdom
Pricing
Custom
Free tier
No
Best for
Also in
Capabilities
Contact enrichment scope
What is Cognism?
Cognism is a premium B2B data provider known for phone-verified mobile numbers and strong European coverage, built for teams that need compliant, accurate contact data. Its Diamond Data process manually verifies mobiles, and records are screened against DNC and notification requirements - the reason it is trusted in GDPR-sensitive markets. For a staffing agency, that makes it a BD tool first: reaching hiring managers and decision-makers at target client companies by direct dial, especially across the UK and EMEA. It sells through custom enterprise plans rather than self-serve, so it fits established agencies over smaller teams.
What are Cognism's key features?
B2B contact database with work emails, direct dials and mobile numbers.
Diamond Data, its phone-verified number tier, is the signature product.
No direct emails: Cognism states its US database does not carry them.
Documented GDPR basis: legitimate interest, a DSAR team, 15 DNC registries.
Developer API available; no official MCP server, only third-party wrappers.
How do staffing agencies use Cognism?
- Build a hiring-manager list for BD across European markets.
- Call decision-makers directly using Diamond Data mobile numbers.
- Push work emails into your ATS/CRM through the developer API.
Who is Cognism best for?
- Agencies doing BD in Europe; weak US data is the recurring user complaint.
- Phone-first BD teams that work off direct dials rather than email volume.
- Teams comfortable with quote-only pricing and a sales-led buying process.
What are Cognism's pros and cons?
Pros
- Phone-verified Diamond Data mobiles are a genuine differentiator for direct-dial outreach.
- Among the strongest providers for UK and European coverage, with compliance built into the data.
- Compliance-first: DNC screening and notification checks reduce risk in GDPR-sensitive markets.
- Native Salesforce, HubSpot, and Outreach integrations plus a REST API.
- Rated 4.5 on G2 across 1,200+ reviews.
Cons
- Enterprise-only, custom pricing with annual contracts - no self-serve tier, which prices out smaller agencies.
- Built for sales and BD, not recruiting - no candidate-native workflows, and it is a data layer rather than a sourcing platform.
- US coverage is thinner than its European strength, so North America-focused teams may find better value elsewhere.
- No official MCP server as of this writing; AI access is via the REST API.
What are people saying about Cognism?
Cognism holds 4.5/5 across 1,201 G2 reviews. Reviewers praise its phone-verified B2B contact data and strong GDPR-compliant EMEA coverage; the most common critique is enterprise-level, quote-based pricing with no self-serve tier.
Consolidated from 1348 reviews across G2 · Updated April 30, 2026
How does Cognism compare to alternatives?
| Feature | Cognism | ContactOut | Lusha | Prospeo | SalesQL |
|---|---|---|---|---|---|
| Category | Enrichment - Contact | Enrichment - Contact | Enrichment - Contact | Enrichment - Contact | Enrichment - Contact |
| AI-first | |||||
| API | |||||
| MCP | |||||
| GDPR | |||||
| Best for | Agency | Agency, In-House | Agency, In-House | Agency | Agency, In-House |
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Frequently asked questions about Cognism
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