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Clay & Outbound GTM Systems · Amsterdam, Netherlands

Verdict: Best for Benelux and European B2B teams that want a Clay Solutions Partner to build and run Clay enrichment, cold email and CRM orchestration as one managed engine.

Amsterdam GTM engineering agency and Clay Solutions Partner building outbound systems on Clay, Instantly, LinkedIn outreach and CRM orchestration.

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Scorecard

7.3/10

Preliminary editorial rating, not yet verified

Reliability
7/10
Guardrails
6/10
Stack Expertise
8/10
Pricing Transparency
8/10

Project minimum

EUR 2,000 to 6,000 Clay setup; full outbound EUR 3,000 to 8,000/month (published)

Tier: $1k–$5k

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Tech stack

Clay

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Proud to see closed:in ranked as a Top Clay & Outbound GTM Systems Partner in the 2026 AgenticIndex. Full scorecard & stack breakdown: https://getagenticindex.com/agency/closed-in

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