Frank Thelen is a German entrepreneur, tech investor, and author from Bonn, known for investing in early-stage technology and deep-tech startups as founder and CEO of the venture capital firm Freigeist Capital. He became widely known as an investor on the TV show “Die Höhle der Löwen,” where he backed numerous startups in areas such as software, mobility, and food innovation. Today, he focuses on investments in scalable future technologies, including AI and CleanTech, and communicates his views on innovation and digital transformation through books, talks, and media appearances.