
Cognism leads for compliant contact data at scale. The UK platform is known for phone-verified mobile numbers and a strong GDPR/CCPA posture, making it the go-to when outbound teams need accurate, defensible contact data across Europe.
B2B data is the highest-risk corner of martech for GDPR: prospect contact data must be sourced and processed lawfully. The tools below are European-owned and EU-hosted, built with EU data-protection rules in mind — a compliant way to find, enrich and convert leads without the exposure that comes with US data brokers.
Our top pick is Cognism.

Cognism leads for compliant contact data at scale. The UK platform is known for phone-verified mobile numbers and a strong GDPR/CCPA posture, making it the go-to when outbound teams need accurate, defensible contact data across Europe.

Dealfront is the European data powerhouse, formed from Echobot and Leadfeeder. German-built, it combines EU-sourced B2B company data with website visitor identification — the most complete EU-native intelligence platform for finding and warming accounts.

Kaspr is the prospecting workhorse for LinkedIn-led teams. French-built, it surfaces verified contact details directly in the prospecting workflow at an accessible price, making compliant outbound realistic for smaller sales teams.

Dropcontact is the GDPR-native enrichment engine. The French tool builds and verifies contact data algorithmically rather than from a stored database — a genuinely different, privacy-conscious approach that appeals to teams wary of data brokers.

Albacross owns the intent side. The Swedish platform identifies the companies visiting your website and signals buying intent, making it the pick for teams who want to act on demand that's already showing up rather than cold-sourcing it.
It can be, when sourced and processed lawfully with a valid basis (typically legitimate interest) and proper opt-out handling. The European tools here are built around these requirements, unlike many US data brokers.
Cognism and Kaspr provide contact data; Dropcontact enriches and verifies it; Dealfront adds company data plus website visitor ID; Albacross focuses on intent from your own site traffic.
US-controlled data platforms fall under US jurisdiction and often source data in ways that are hard to reconcile with GDPR. EU-based providers keep sourcing and processing within European rules.