Sting is closely connected to a group of experienced entrepreneurs and investors who in different ways contribute to the development of Sting and the Sting companies. These mentors are available for one-to-one meetings during which our startups can bounce specific questions regarding their businesses and growth. They all have experience from building a successful international company and have in-depth knowledge of one or several industries.

Sara Bjelkstam has since her studies at the Stockholm School of Economics worked in a number of entrepreneurial technology companies. Most recently, Sara was the COO at Fishbrain and before that, she was CMO for the digital mailbox Kivra. Nowadays, Sara runs her own company where she supports start-ups on issues such as how to build a successful team, ways to maintain and attract talent, and how to proactively work to build a corporate culture that enables innovation and rapid growth to achieve business goals.
Erik Byrenius co-founded OnlinePizza and was the CEO and responsible for tech, product, legal, HR, etc. Erik and his co-founders sold the company to Delivery Hero in 2012. He is now trying to help other tech startups, partly by building stuff for the ecosystem (e.g. StartupDocs) and partly by investing in and advising startups. Erik’s experience primarily originates from building marketplaces, but he can give general advice relating to product, legal, HR, finance, metrics, etc.
Paul Fishbein is an entrepreneur with extensive experience from building online companies, primarily within e-commerce (B2C). Paul is the founder of and has also been the Chairman of companies like, Gymgrossisten and Lekmer. Today, Paul Fishbein is also an investor in promising growth companies. Advisor to Sting companies.
Ludvig Linge was one of the founders of T.A.T which became a world leader of creating the best user experiences in smartphones, with global customers like Samsung and Blackberry. In 2012, T.A.T was acquired by Research in Motion (Blackberry) at a valuation of 700 MSEK. Ludvig is today a seasoned investor and has helped a number of Sting companies. As a Sting Advisor, Ludvig can be a sounding board for issues in a range of areas – how to build a world-class product, how to build a really strong team, how to scale, and several other areas. He has an M.Sc. in Computer Science from Lund University.