Prefix Capital is an early-stage venture capital firm founded in 2019 and based in San Francisco, California. The firm specializes in investing in foundational technologies across various sectors, including consumer electronics, advanced software, artificial intelligence, biotech, and more. Prefix Capital focuses on deep-tech companies, providing both capital and operational support to help these startups succeed.

The firm's investment stages range from seed to early-stage venture, with typical investment sizes between $100K and $5M, and a sweet spot around $1.5M. Their portfolio includes companies like Symmetry Systems, Base Operations, and VidMob.