Tensor Ventures is a deep tech venture capital fund that invests in early-stage companies focused on AI, quantum computing, computational biotech, and sustainable technologies primarily in Central and Eastern Europe, the UK, and globally. It operates from Prague with a Luxembourg base, was founded in 2018 by Roman Smola, Martin Drdul, and Petr Ulvr, and has raised a second fund of €50 million after closing its first €18.5 million fund.