Mad Kings

Mad Kings, based in Etterbeek, Belgium, describes itself as a technical go-to-market studio rather than a conventional marketing agency. Founded in 2016, the team has worked with companies including Microsoft and Lampiris, and its Growth Marketing Canvas methodology has reportedly been downloaded over 56,000 times and used by more than 2,000 companies. The studio positions itself against agencies whose business model relies on client lock-in through rented platforms such as HubSpot, Marketo, Klaviyo or Clay, instead building systems that clients own outright once the engagement ends. The work is structured around three entry points: a fixed-price GTM Audit & Roadmap (four to six weeks) that maps a client's funnel against the Growth Marketing Canvas and delivers a prioritised roadmap and stack recommendation; GTM Stack Deployment, where Mad Kings designs and builds an owned go-to-market engine covering analytics, lifecycle marketing, experimentation, automation and a unifying data layer, built on open tools and hosted on European infrastructure, with documentation so the client's team can run it independently; and a Fractional GTM Lead offering, placing a senior operator part-time inside a client's team with a delivery network behind them. Declared service areas include SEO, CRM consulting and systems integration, conversion optimization, social media marketing, and UX/UI design, applied across the full customer journey — awareness, acquisition, activation, retention, revenue and referral — rather than top-of-funnel activity alone.