{"id":"961a7b79-fe49-464f-8f20-c814b6da291e","slug":"johann-vaillant-vaillant","name":"Johann Vaillant","bioBrief":"Founder of the Vaillant Group, which he started in 1874 as a master fitter's business in Remscheid, Germany. In 1894 he patented a closed-system gas-fired bathroom boiler.","priorExits":null,"nationality":"German","verificationPosture":null,"aliases":[],"sources":[{"url":"https://en.wikipedia.org/wiki/Vaillant_Group","title":"Vaillant Group - Wikipedia","sourceName":"Wikipedia"}],"reviewStatus":"reviewed","createdAt":"2026-07-16T13:03:27.143Z","updatedAt":"2026-10-21T01:57:46.060Z","educations":[],"companyRoles":[{"id":"ab9465db-40ef-43d5-bddb-0fb2ab688737","personId":"961a7b79-fe49-464f-8f20-c814b6da291e","companyId":"21d6c1f4-aa8e-4aaf-94b0-68fe0435d5c1","role":"founder","roleTitle":"Founder","startDate":null,"endDate":null,"currentRole":false,"roleBasis":"verified_sec","displayOrder":null,"createdAt":"2026-07-16T13:03:27.525Z","company":{"slug":"vaillant","name":"Vaillant Group"}}],"boardRoles":[],"investorRoles":[],"foundings":[{"id":"20a1138a-a296-4c12-a752-5a8bf7d06afb","personId":"961a7b79-fe49-464f-8f20-c814b6da291e","companyId":"21d6c1f4-aa8e-4aaf-94b0-68fe0435d5c1","foundingDate":null,"cofounderStatus":null,"stillAtCompany":false,"createdAt":"2026-07-16T13:03:27.904Z","company":{"slug":"vaillant","name":"Vaillant Group"}}]}