As of September 17, 2026, research surfaced 22 active, independent, privately held companies centered on their own open-source software, models, or platforms with a reported valuation of at least $1 billion — a combined __TOTAL__ in nominal USD. This is a research-backed list, not a provably exhaustive universe: no authoritative registry defines every “open-source company.”
Read with care: valuations come from private funding rounds and secondary-share transactions on different dates, so they are snapshots, not contemporaneous measurements. Public companies, acquired firms, and in-talks valuations are excluded. Many of these companies mix open-source and proprietary offerings; inclusion means the business is centered on its own open-source project, not merely using or hosting open source.
Bar length: latest confirmed reported valuation, log scale (so $1B and $190B both stay readable). Orange marks the top three; grey, the rest. Hover a bar for round, project, and source.
| Company | Open-source project | Valuation | Date | Round / status | Sources | Link |
|---|
Method: research-compiled list of 22 privately held, active, independent companies centered on their own open-source software, model, or platform, each with a reported achieved valuation of $1B+ in nominal USD; latest confirmed valuation per company as located by 2026-09-17, from funding rounds and secondary-share sales across many independent hosts (source count shown per row). Transaction dates were kept only where reliably extractable, so most are blank. Public market caps, acquisition prices, and in-talks valuations were cut.