OSS Capital

General contacts
Investor type

VC

Founded

2018

AUM

-

Location

San Francisco, California, United States

Investment Ticket

$1-5 m

Investment Stage

Seed Series A Series B

Region of investment

North America
Investor profile last updated: 16 August, 2026

Profile

OSS Capital is a venture capital firm based in San Francisco, California, founded in 2018. The firm is exclusively dedicated to investing in commercial open-source software (COSS) startups globally. With a team of three professionals, OSS Capital is committed to empowering the next generation of COSS founders by leveraging the expertise of over 50 COSS founders from companies like GitLab, Elastic, and Red Hat.

OSS Capital focuses on early-stage investments, particularly in the technology and consumer enterprise sectors. The firm typically invests in seed to Series B stages, with check sizes ranging from $50,000 to $5 million. Their investment strategy emphasizes capital efficiency, aiming to help COSS companies achieve significant growth with minimal funding. The firm operates with a vision to inspire over a billion people to engage with open-source technologies by 2035.

Notable investments by OSS Capital include Appsmith - an open-source platform for building internal tools, Dagster Labs - a data orchestration platform, Forem - a community-building platform, Datastax - a data management company, and Cal.com - a scheduling infrastructure platform.

Industry

AI Software SaaS Developer Tools

Contacts

Name
Title
Email
Social Networks
avatar
Joseph Jacks Founder
Founder
j•••@•••
LinkedIn
avatar
Chelsea Wei CFO
CFO
c•••@•••
LinkedIn
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Investment-team contacts for OSS Capital — including verified work emails and LinkedIn profiles — are available to Private Equity List subscribers.
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FAQs about OSS Capital

OSS Capital is a venture capital firm. It backs companies at Seed, Series A and Series B, writing tickets of $1-5 m.
OSS Capital is located in San Francisco, California, United States.
OSS Capital was founded in 2018.
OSS Capital invests in companies and startups in AI, Software, SaaS, Developer Tools.
OSS Capital invests in companies and startups in North America.
OSS Capital invests in companies and startups at Seed, Series A, Series B.
OSS Capital usually invests $1-5 m on average.
OSS Capital can be reached through its website oss.capital, its LinkedIn page and its X account. Cold-mailing a general inbox rarely reaches a partner, so Private Equity List also lists the investment-team contacts for OSS Capital — names, roles, verified work emails and LinkedIn profiles — available on a Pro plan from $129/month (see pricing). Contacts are sourced from the firm's website and LinkedIn and re-verified on a rolling cycle. Spot a stale contact, or none at all? Report it — we re-run that firm within 48h and get back to you.
Yes. Every field on this page — profile, funds, investment criteria, portfolio and investment-team contacts — is available programmatically through the Private Equity List REST API and MCP server, so AI assistants such as Claude and ChatGPT can query OSS Capital directly instead of scraping this page. One subscription covers both the web app and machine access — see API & MCP.
Private Equity List re-verifies investor profiles on a rolling cycle, pulling from the firm's own website and LinkedIn rather than a one-off import. This profile was last updated on 16 August, 2026. Something out of date here? Report it — we re-run that firm within 48h and get back to you.