


Flatstack accelerates product development for startups. For early-stage startups, they help founders build a rapid MVP for customer validation and fundraising. For funded startups, they help scale the technical team by adding leverage to their in-house engineering stack.
GRINN focus on what they do best. As it happens, what they do best is design advanced hardware using cutting edge technologies and offer comprehensive project support. With them, you gain both quality of life and competitive advantage. The only thing that beats the awesomeness of their designs is the range of applications for which they can be used worldwide.
fRedentu is a product development company. Their team has all the right skills to get your most complicated development challenges solved. Based in Ukraine, they offer design, development, quality assurance, and management services to clients from all over the world. Whether you need a full product team or a single dedicated developer, they are ready to help you reach your business goals and get the results you want.




