We ran the guest list before. This time we're running the door too.

Guest lists go wrong because the tools stop at the list. Nobody built for what happens at 23:40, when the signal drops and the queue is 40 deep. We did.

Before PlusOne, Joeri spent nine years on the commercial side of Weeztix, the Amsterdam ticketing platform (formerly Eventix, merged with Weezevent in 2025) that now sells tickets on every continent. The pattern kept showing up: a venue's ticketing was sorted, and the guest list was still a WhatsApp thread, an Excel sheet, or a clipboard nobody fully trusted.

PlusOne exists to fix the part ticketing never touched: the door itself. Built by someone who's sat across the table from hundreds of venues and heard the same complaints, over and over.