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Cognism is a global B2B sales intelligence platform founded in 2015 and headquartered in London, UK, with offices across the US, Europe, and Asia. Led by CEO Dominic Allon, the company has raised $163M in total funding and serves over 4,000 revenue teams worldwide, with particular strength in European markets including the UK, DACH, France, and the Nordics. Cognism is rated 4.6/5 on G2 across 1,300+ reviews and counts Asana, Notion, Deel, monday.com, and Hootsuite among its customers.The platform’s core product is a verified B2B contact database of 440M+ contacts, 100M+ mobile numbers, and 10M+ phone-verified Diamond Data records — the latter verified individually by human researchers to achieve a claimed 98% accuracy rate. Data is collected via an AI engine that fuses press releases, company websites, news, earnings releases, and public registries, then put through a three-step verification pipeline covering confidence scoring, ML-based email and mobile validation, and automated filtering against global Do-Not-Call lists. This compliance-first approach makes Cognism one of the few vendors able to legally supply GDPR-compliant European mobile numbers.
In addition to its core contact data, Cognism offers Bombora-powered B2B intent data, technographic data on 20,000+ technologies, and sales trigger events covering job changes, funding rounds, hiring signals, M&A, and technology installs. Products include Sales Companion (the unified prospecting interface), Cortex AI (for smart personas and research), Cognism Engage (native email sequencing), and a Data-as-a-Service offering for teams needing bulk delivery into data warehouses or internal systems. The platform integrates natively with Salesforce, HubSpot, Outreach, Salesloft, Pipedrive, and Microsoft Dynamics 365, and all plans include unlimited data exports with no per-credit charges for standard usage.
Database size
440M+ contacts · 100M+ mobile numbers · 10M+ phone-verified Diamond Data records
Diamond Data (phone-verified mobiles)
10M+ records individually phone-verified by a human researcher · 98% claimed accuracy rate · Industry-leading connect rates for cold calling
Data verification process
3-step AI pipeline: confidence scoring & source fusion → ML-based email & mobile verification → automated DNC list filtering across global markets
Data collection method
AI-simulated web searches fusing press releases, company websites, news articles, earnings releases, public registries & validated 3rd-party sources
Dataset types offered
Sales trigger events tracked
Job changes · Funding events · Hiring signals · M&A activity · Technology installs
Delivery channels
Compliance & security
Pricing model
Target customers
B2B Sales & SDR teams · Marketing & demand gen · RevOps · SMBs, mid-market & enterprise · 4,000+ revenue teams globally