Moritz Dausinger, I'm the founder and CEO of Refiner. Before founding Refiner, I bootstrapped two B2B SaaS companies from zero to acquisition. For both of them we started out with a self-service business model and quickly moved upmarket. How did we do that? I didn't know the right term back then, but we actually used Product Qualified Leads. So when I sold my last company, I decided to build a tool dedicated to identifying Product Qualified Leads so that other B2B SaaS companies can quickly take the same route and move upmarket.