World of Filtration is building an API-first, AI-powered, cloud-native B2B marketplace for the filter and air technology sector, backed by the ULT Group. The platform targets the DACH region and is expanding across Europe, with vendor network operations in Germany, Poland, Italy, and Spain. Their tech stack includes Next.js and Medusa.js 2.0, positioning them at the intersection of modern headless commerce and industrial B2B procurement. As an early-stage venture with 2026 hiring plans, they offer an opportunity to shape a greenfield commerce platform in a specialized vertical.