OS Fund

OS Fund is a venture capital fund that backs entrepreneurs commercializing breakthrough discoveries in science and technology. Its investment focus is on platform-enabling technologies - foundational capabilities rather than a single molecule, model or algorithm - spanning genomics, synthetic biology, computationally derived therapeutics, diagnostics, advanced materials, data and energy.

The fund describes its approach as hard-science investing at the technology level, taking on the risk associated with unproven scientific platforms rather than incremental applications. It works with portfolio companies to develop foundational intellectual property and to move technologies toward market-ready solutions, with an emphasis on innovations that bear on human health, natural resources and global infrastructure.

OS Fund I, the firm's first vehicle, made 28 investments. Of those, 27 companies received follow-on investment, four were valued at more than $1 billion and two were acquired, according to figures published at the time of the 2018 fund announcement. The follow-on rate indicates a portfolio pattern in which most backed companies secured subsequent capital; the unicorn and acquisition counts are drawn from the same disclosure.