OSS Capital (@OSSCapital) — Twitter Score 54 out of 1000

OSS Capital is an early-stage venture capital firm exclusively dedicated to backing commercial open source software (COSS) startup founders on a global basis. OSS Capital's Twitter Score is 54 out of 1000 (a Good rating) as of September 2026, ranking #16,228 (top 5%) among 486,860 tracked accounts.

OSS Capital 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 Capital has accumulated 10,782 followers as of September 2026 across 5,353 posts on the platform.

OSS Capital 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 Capital's portfolio includes Parallel, Umbrel, ResearchHub, Cal.com, Remix, OpenBB, DeSci Labs and Extropic.

Who follows OSS Capital on X?

The accounts that follow OSS Capital include 254 founders, 83 angel investors, 65 influencers and 9 VCs, among them Nic Carter, 6529, Andrew Kang, Tarun Chitra, Vance Spencer and Foobar. OSS Capital has been mentioned by 39 accounts, with 58 total mentions recorded.