OSS Capial is an early-stage venture capital firm exclusively dedicated to backing commercial open source software (COSS) startup founders on a global basis. OSS Capial's Twitter Score is 48 out of 1000 as of July 2026, ranking #21,793 (top 5%) among 531,432 tracked accounts.
OSS Capial was co-founded by Joseph Jacks (also known as JJ) and Heather Meeker, who serves as Founding Portfolio Partner. The firm was established in 2018 as the first and, to date, only early-stage VC focused entirely on the COSS sector. Nick White was previously affiliated with the firm. OSS Capial has accumulated 10,802 followers as of July 2026 across 5,217 posts on the platform.
OSS Capial has built a substantial track record in the COSS space. Joseph Jacks has directed the firm to lead more than 40 inception and seed-stage investment rounds representing over $200 million in deployed funding, with portfolio value creation reported at over $20 billion over a five-year period. OSS Capial's portfolio includes Parallel, Umbrel, ResearchHub, Extropic, Manifold and Nous Research.
Who follows OSS Capial on X?
The accounts that follow OSS Capial include 225 founders, 70 angel investors, 74 influencers and 9 VCs, among them 6529, Andrew Kang, Nic Carter, Gmoney, Foobar and Vance Spencer. OSS Capial has been mentioned by 36 accounts, with 51 total mentions recorded.