Vector Guest
Harold OS is a hospitality operating system: a system of records plus LLM agents that run a portfolio's entire operation — revenue, demand, guest journey, and every decision the ground team makes. Built operator-first with a design partner running a multi-million-euro aparthotel portfolio.

Operators run on shelf PMS tools sold the same to everyone: siloed data across booking channels, email, and accounting, bloated teams doing repetitive manual work, and critical knowledge trapped in people's heads.
Forward-engineering instead of shelf software: go deep into one operator's processes, own the solution end-to-end, and build one connected brain — tool-calling agents over a shared core that scales to the next operator without the technical debt.
A dedicated full-time Brigada team ships weekly with the founding operator, who opened up their entire stack — bookings, email, accounting, channel manager — to the platform.
Dedicated product team