Cognism

Reviewed: October 31, 2026 — based on the official Cognism website and pricing page plus dated third-party pricing benchmarks and review data. No hands-on testing was performed by SalesOpsTools; all accuracy and connect-rate claims are labeled by source.

What Cognism Is

Cognism (cognism.com) is a London-headquartered B2B sales intelligence platform, founded in 2015, positioned explicitly as the premium data vendor for teams selling into Europe. It claims 4,000+ customers, has raised over $128M in venture funding, and has grown through acquisitions (Kaspr in 2022 for French-market prospecting; Mailtastic in 2020). The product line is Sales Intelligence (prospecting web app + Chrome extension), CRM Enrichment (automated record maintenance), MCP & API (data access for AI assistants and GTM systems), and Data-as-a-Service (bulk/API delivery).

The differentiator is Diamond Data: phone-verified mobile numbers produced through additional manual and automated verification layers. Cognism claims up to 3x higher connect rates versus generic providers and an 87% connect rate on Diamond mobiles against a roughly 30% industry norm — vendor figures, but they speak to exactly the metric a cold-calling team cares about. The second differentiator is compliance: GDPR/CCPA-aligned sourcing, extensive European Do-Not-Call screening, ISO 27001, ISO 27701, and SOC 2 Type II, with audit-ready metadata. Where ZoomInfo built its moat on US mid-market/enterprise breadth, Cognism built its on European regulatory posture and dialable senior-buyer mobiles.

The 2026 platform additions matter for GTM engineering teams: Cognism Credits (1 credit reveals a contact; revealed contacts are free to reuse until the person changes jobs), MCP & API access on both prospecting tiers (Cognism data inside Claude, ChatGPT, and custom pipelines under the same compliance settings), and an AI layer (AI account research, AI persona builder, AI search) in Sales Companion.

Pricing and Plans

Cognism publishes no prices. Both prospecting packages — Standard (formerly Platinum/Grow) and Pro (formerly Diamond/Elevate), each including 5 seats — route to a sales conversation, as do CRM Enrichment and DaaS. The deal shape, per third-party procurement benchmarks (Vendr, Salesmotion, ColdIQ's buyer-reported data):

• Fixed annual platform fee (~$15,000 Standard, ~$25,000 Pro) + per-seat license (~$1,500 Standard, ~$2,500 Pro).
• A 5-seat Standard deal lands around $22,500/yr; Pro around $37,500. Vendr/Salesmotion data (June 2026, 108 purchases) puts the median contract at $36,000/yr, ranging $18,350-$93,886.
• The platform fee dominates small-team economics: a solo Standard user effectively pays ~$16,500/yr; per-user cost improves to ~$3,000 at 10 seats and ~$3,000-3,500 at 25-50 seats.
• Credits: 1 credit per revealed contact; a Diamond mobile costs 2. Top-ups and Diamonds-on-Demand verification are billed beyond seat allocations.
• Add-ons stack on top: onboarding ($500-$1,500), Bombora intent topics (~$200-$400 each; teams typically want 8-15), CRM Enrichment, and separately quoted API/DaaS access. Review-site analyses put the realistic total 40-60% above the first quote.
• Contracts are annual and prepaid, with auto-renewal and buyer-reported 10-15% renewal increases. Vendr data shows 28-52% discounts are commonly negotiated — treat the first quote as a starting bid, time the deal to quarter-end, bring a competing Apollo/ZoomInfo number, and cap the renewal increase in the contract.

There is no free plan and no self-serve trial — only a 25-lead ICP-matched sample. That makes Cognism the least self-evaluable vendor in its category: you validate data quality through the sales process, not before it.

Data Quality and the Diamond Data Question

Cognism's strengths concentrate where its sourcing model works: UK and DACH coverage, senior decision-makers, and mobile numbers that dial. The 30-day refresh on decision-maker records, DNC screening baked into the data, and compliance certifications are real operational advantages in regulated European markets — they reduce legal exposure as well as dead dials.

The honest caveats: the 87% connect rate and "30% better than other providers" figures are vendor claims from case-study customers, and independent head-to-head accuracy tests are scarce and mostly competitor-published. Users do report occasional outdated contacts, bounced emails, and missing numbers — no vendor in this category escapes that, and high-turnover industries decay faster than any refresh cycle. Coverage outside Europe (North America, APAC) and in niche industries is comparatively thin. On Trustpilot, Cognism scores 2.8/5 across 393 reviews — driven largely by pricing and contract friction rather than data complaints, but it is a consistent signal that the commercial experience bothers buyers. On the review sites that actually measure the product, sentiment is strong: 4.5/5 on G2 (1,220+ reviews), 4.7/5 on Capterra, 8.5/10 TrustRadius, with consistent praise for European coverage, mobile quality, and support.

Who Should Buy It

• Phone-led outbound into EMEA: this is the cleanest fit in the market. If connect rate drives pipeline, Diamond Data pays for itself on conversations booked.
• Compliance-sensitive buyers: regulated industries and companies with strict GDPR posture get the paperwork and certifications up front.
• Mid-market and enterprise teams of ~10+ seats with RevOps capacity to manage credits, integrations, and contract negotiation.

Who Should Look Elsewhere

• Small teams and startups: the platform fee makes the floor ~$16,500 for a single seat. Apollo ($49/seat), Lusha, or Prospeo ($37/seat, free tier) cover email-led prospecting at a fraction of the cost.
• US-centric teams: ZoomInfo owns US depth; Apollo and Lusha are cheaper and competitive there.
• Email-only motions: Pro's premium buys phone accuracy you won't use; Standard still carries enterprise pricing.
• API-first teams: DaaS/API is separately quoted with no rate card — transparent per-credit vendors are easier to model.