How Verzendbazen generated 78 opportunities with a 13.9% reply rate

Verzendbazen.nl is a Dutch fulfillment company specializing in storage, pick & pack, and shipping services for e-commerce businesses. Their target market: fast-growing online stores in the Netherlands and Belgium that need reliable, scalable fulfillment.

Before working with closed:in, outreach was ad hoc with limited targeting and poor results. They lacked proper domain setups, warmup, and deliverability management. Without predictable sales conversations, their growth was capped, and they needed a way to systematically fill the pipeline without hiring an expensive in-house outbound team.

We built a full outbound system combining ICP identification, Clay worktable building, and technical infrastructure setup to generate qualified conversations at scale.

The campaign volume was so successful that Verzendbazen had to hire a new team member just to handle the incoming requests. Outbound went from an afterthought to their primary growth channel.