
Expertise
✦ GTM System Design
✦ AI-Assisted Outbound Workflows
✦ TAM Mapping & Enrichment
✦ Outbound Sequencing
✦ Lead Scoring & Routing
✦ Inbound Lead Enrichment
✦ Account-Based Targeting
✦ Website Visitor Identification
✦ CRM Hygiene & Enrichment
✦ Pipeline Automation
ICPs
✦ B2B, clear value prop
✦ Scaling outbound efforts
✦ Messy or unreliable CRM
✦ Wants owned systems
✦ No new headcount
✦ Europe or global markets
Target Industries
✦ B2B SaaS
✦ Logistics & Supply Chain
✦ Fintech & Financial Services
✦ Professional Services
✦ AI & Automation
✦ Marketing & Adtech
✦ Industry Agnostic
Nebor is a B2B growth infrastructure agency founded by Andrew van Rossenberg and Yannick Kok in the Netherlands. They design, build, and implement GTM infrastructure, from outbound engines and demand generation systems to data hygiene and CRM operations, so revenue teams can focus on closing, not building.
Everything Nebor builds is owned by the client. They work inside your existing stack, integrate into your tools, and hand over documented systems that compound after they're gone. Their best clients compare them to hiring a senior sales operator, not to buying another tool.

The TAM mapping is genuinely accurate, and it’s much more user-friendly than the old-fashioned tools we all know the names of. What stood out to me is the technology filtering. For one campaign, we could filter out email security gateways to clean up our target list, which most platforms can’t do. The lookalike function is built in too, so there’s no need for a separate lookalike audience finding tool. It just works, and it’s easy to use.

Andrew van Rossenberg
Co-founder @ Nebor
TAM Mapping with Technology Filtering
Nebor uses AI Ark to map a client's total addressable market with technology-layer filtering, removing irrelevant accounts like email security gateways before a single outreach fires.
Lookalike Account List Building
Nebor models the best existing customers and pulls matched lookalike accounts using AI Ark, eliminating the need for a separate audience tool and seeding campaigns with precision.
CRM Enrichment & Data Hygiene
Nebor enriches and cleans CRM data automatically, standardizing records, filling gaps, and routing leads correctly so revenue teams always operate from trusted, current data.