C3 - SOLVE BY DESIGN C3 is a multidisciplinary company specializing in Bespoke Software Development, Quality Assurance, IT Audits, Service Design as well as Business Analytics and Sales Force. The company is based in Brussels and has also its activities in Mumbai. Challenge with data. Solve with design and technology. Our work is based on three main values: Agility, Cost and Quality, which help us deliver reliable and innovative solutions that stimulate growth of our clients.