What is Cognism?
Cognism is a b2b contact & company data tool. European-first B2B data with strong GDPR compliance. Diamond Data phone-verified contacts are effective for outbound calling.
Best for: Teams selling into EMEA markets who need GDPR-compliant data
Best For
Teams selling into EMEA markets who need GDPR-compliant data
Cognism Overview
Cognism is the European alternative to ZoomInfo. Based in London, the company has built a B2B contact database with particular strength in EMEA markets where American providers historically underperform. Their Diamond Data verification process uses human researchers to manually verify phone numbers, resulting in phone connect rates 2-3x higher than most competitors.
The platform covers 400M+ business profiles globally, with particularly deep coverage across the UK, Germany, France, and the Nordics. GDPR compliance is baked into the product at a fundamental level. Cognism maintains a Do Not Call registry, processes opt-out requests proactively, and provides compliance features that American competitors bolt on as afterthoughts.
Cognism's pricing sits between Apollo and ZoomInfo, typically running $15,000-$30,000/year for a small sales team. The platform includes intent data (powered by Bombora), basic sequencing via their Engage product, and a Chrome extension for LinkedIn prospecting. It's a solid mid-market option for teams that need better data accuracy than Apollo but can't justify ZoomInfo's enterprise pricing.
The main limitation is North American data depth. While Cognism's global database is large, their US coverage trails ZoomInfo and Apollo for SMB contacts. Teams selling primarily in North America will find better value elsewhere. Cognism's sweet spot is organizations with significant European or global sales motions.
Pros & Cons
Use Cases
UK SaaS Company Prospecting Across Europe
A London-based SaaS company with a 15-person SDR team uses Cognism to build prospect lists across UK, Germany, and France. Diamond Data phone numbers let their reps connect with 3 out of every 4 calls, compared to 1 in 4 with their previous provider. GDPR-compliant data processing means their legal team signed off without additional compliance investment.
US Enterprise Team Expanding to EMEA
A Series D company opening a London office uses Cognism to supplement their ZoomInfo data for European markets. They run both platforms in parallel: ZoomInfo for North American accounts, Cognism for EMEA territories. The Salesforce integration keeps both data sources synced without manual overlap management.
Phone-First SDR Floor
A team of 30 SDRs where 70% of meetings come from cold calls uses Cognism's Diamond Data to maximize connect rates. They request Diamond verification on their top 1,000 target accounts each quarter. The verified numbers deliver 3x the connect rate of standard data, cutting the number of dials needed per meeting booked nearly in half.
Key Features
- Contact search
- Diamond Data (phone-verified)
- GDPR compliance tools
- Chrome extension
- CRM integrations
- Intent data (Bombora-powered)
Frequently Asked Questions
Is Cognism better than ZoomInfo?
Cognism is better for teams selling into European markets or teams that rely heavily on phone outreach (thanks to Diamond Data verified numbers). ZoomInfo is better for North American-focused teams that need the largest database, intent data depth, and the full go-to-market platform. Many enterprise teams run both in parallel.
What is Diamond Data?
Diamond Data is Cognism's premium phone verification service. Human researchers manually call and verify phone numbers for your target contacts, achieving connect rates of 80%+. Standard data providers achieve 40-60% connect rates for direct dials. Diamond Data is available as an add-on or included in higher-tier packages.
Is Cognism GDPR compliant?
Yes. Cognism was built with GDPR compliance as a core architectural principle, unlike US-based providers that added GDPR features later. The platform maintains Do Not Call registries, processes data subject access requests proactively, and provides compliance documentation that legal teams can review.
How much does Cognism cost?
Cognism packages start around $15,000-$20,000/year for small teams (3-5 seats) with standard data access. Adding Diamond Data, intent data, and additional seats pushes costs to $25,000-$40,000/year for mid-market teams. Enterprise pricing varies based on usage and support requirements.
Does Cognism work in the US?
Cognism has US data, but coverage is thinner than ZoomInfo or Apollo, especially for SMB contacts. Large enterprise accounts are well-covered. If your ICP is primarily North American SMBs, Apollo or ZoomInfo will provide better coverage. Cognism's US data works well as a supplement alongside a US-focused primary provider.
Comparisons
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Reviewed by the B2B Sales Tools Editorial Team. Last verified 2026-04-12.
Pricing, features, and ratings are based on vendor documentation, public filings, product demos, and feedback from sales teams using these tools in production. We update reviews when vendors ship major releases or change pricing.