SuGu Makes Startups (Su) And Grownups (Gu) With A Passion For Making Work Together. In the summer of 2014 a group of Rotterdam entrepreneurs started developing SuGu (Startups & Grownups). The driving forces behind SuGu are Transmare (1953), developer and producer of bio-based plastics, and 010Works, developers and producers of sustainable business formats. SuGu connects startups (early stage growth companies) and Grownups (large and multinational companies) with a passion for creation.