Nebor

Nebor is a GTM and RevOps agency based in Haarlem, the Netherlands. Co-founders Andrew van Rossenberg and Yannick Kok started it after watching revenue teams run on effort instead of systems. Their public contrast with lead-generation shops is the point of the practice: those shops run outreach on your behalf and hand you a list. Nebor designs, builds, and implements the data backbone, workflows, and CRM operations inside the stack you already have, so the client's team owns the engine when the engagement ends.

Andrew spent more than ten years in B2B sales as a BDM, AE, and team lead, including two years in corporate sales at Gartner, then grew Utmost Agency before co-founding Nebor. He focuses on outbound growth, AI, and Clay-powered automations. Yannick brings ten years of SaaS sales and RevOps, including leading an EMEA BDR team at OneStream to global number one. At Nebor he owns scalability, the team, and the commercial side.

The work is three systems treated as one revenue engine: outbound GTM execution, demand generation and account-based growth, and CRM and revenue operations. Delivery is flexible. Channels are email and social. Tools in this listing include Clay, Instantly, HubSpot, HeyReach, and Supabase, chosen to match stacks they actually ship rather than a locked vendor list.