Open Source Initiative
A nonprofit that stewards the Open Source Definition and reviews and approves software licenses for conformance, serving as the recognized authority on what qualifies as open source and advocating for open source software.
Financial profile
Open Source Initiative · EIN 91-2037395 · 501(c)(3)
| Fiscal year | Total revenue | Contributions | Program services | Total expenses | Net assets | Year end |
|---|---|---|---|---|---|---|
| FY2023 | $811,527 | $790,562 | $3,250 | $684,147 | $751,545 | Dec 2023 |
| FY2022 | $739,664 | $739,259 | $0 | $490,111 | $622,249 | Dec 2022 |
| FY2021 | $326,481 | $325,146 | $0 | $406,576 | $383,392 | Dec 2021 |
| FY2020 | $343,964 | $340,557 | $3,314 | $252,400 | $414,608 | Dec 2020 |
| FY2019 | $530,220 | $530,072 | $0 | $486,957 | $323,044 | Dec 2019 |
| FY2018 | $555,610 | $555,458 | $0 | $360,561 | $279,781 | Dec 2018 |
Figures exactly as reported. A blank cell was blank on the form. The fiscal year links to the filing.
Peer societies
Five societies Open Source Initiative is read alongside.
OG
The Open Group
A global consortium that develops open, vendor neutral technology standards and certifications, best known…
14 companies named
CSS
Code for Science & Society
A public charity and fiscal sponsor that incubates open science and data projects, providing the financial…
UA
USENIX Association
The advanced computing systems community whose peer reviewed conferences and open access proceedings shape…
14 companies named
SIIA
Software and Information Industry Association
A long standing trade association for the software and digital information industries, organized into…
55 companies named
OSHF
Open Science Hardware Foundation
A nonprofit advancing open source scientific instrumentation to make open science hardware a mainstream part…
Who backs OSI
Every company Open Source Initiative names publicly as a supporter, exactly as published. Companies also named by other associations on Sociogene come first.
| Company | Support as published | Also named by |
|---|---|---|
| 07 - DLA Piper | Corporate partner | ACS AIPLA ANA CCC CI +3 |
| 1 - Bloomberg | Corporate partner | AAJA ACL AFP BF BDA +3 |
| 2 - CapitalOne | Corporate partner | ACL AFP BRACB CF CGRCC +3 |
| 3 - Cisco | Corporate partner | APWG CCC ICS INSA IS +3 |
| 5 - Microsoft | Corporate partner | AACC ACS AHA APWG A +3 |
| AWS | Corporate partner | AHLA ARIN CSSA CCFAS CTA +3 |
| Google Open Source | Corporate partner | AAA ARF ACC AAF AAS +3 |
| Block | Corporate partner | BCC GKCCC OMCC |
| Red Hat | Corporate partner | ATCA CTA SCTE |
| 7 - Sentry | Corporate partner | RIMS |
| mongodb | Corporate partner | UA |
| 08 - LPL | Corporate partner | Only Open Source Initiative, so far |
| 1 - Automattic | Corporate partner | Only Open Source Initiative, so far |
| 1 - Blindside Networks | Corporate partner | Only Open Source Initiative, so far |
| 10 - Open Project | Corporate partner | Only Open Source Initiative, so far |
| 15 - pretix | Corporate partner | Only Open Source Initiative, so far |
| 2 - OpenLogic by Perforce | Corporate partner | Only Open Source Initiative, so far |
| 3 - GitHub | Corporate partner | Only Open Source Initiative, so far |
| Socket.dev | Corporate partner | Only Open Source Initiative, so far |
| Sourcegraph | Corporate partner | Only Open Source Initiative, so far |
| WordUnscrambler | Corporate partner | Only Open Source Initiative, so far |
Sources: 1 published list, read September 2026
OSI sponsors. Read September 27, 2026. Current sponsor logo wall; names taken from image alt text (MongoDB from its image file name, alt blank). Eclipse Foundation left out as a nonprofit.
Who backs Open Source Initiative's peers, but not Open Source Initiative
Companies named publicly by at least one of Open Source Initiative's five peer societies, and not found in Open Source Initiative's reviewed public records.
| Company | OG | UA | SIIA | Peers |
|---|---|---|---|---|
| Google Cloud | Premium Sponsors | Silver Sponsors | 2 of 3 | |
| 3di | Bronze Sponsors | 1 of 3 | ||
| AMD Solarflare | Silver Sponsors | 1 of 3 | ||
| Archedata | Bronze Sponsors | 1 of 3 | ||
| Ardoq | Named | 1 of 3 | ||
| baha | Silver Sponsors | 1 of 3 | ||
| Barchart | Bronze Sponsors | 1 of 3 | ||
| BCG Expand | Bronze Sponsors | 1 of 3 | ||
| big xyt ecosystems | Bronze Sponsors | 1 of 3 | ||
| bluware | Sponsors & Exhibitors | 1 of 3 | ||
| BMLL Technologies | Bronze Sponsors | 1 of 3 | ||
| Cboe Global Markets | Gold Sponsors | 1 of 3 | ||
| Charles & Potomac Capital | USENIX Corporate Members | 1 of 3 | ||
| CJC | Bronze Sponsors | 1 of 3 | ||
| CME Group | Gold Sponsors | 1 of 3 | ||
| Collingwood | Named | 1 of 3 | ||
| Colt | Bronze Sponsors | 1 of 3 | ||
| Crizit | Bronze Sponsors | 1 of 3 | ||
| CS-Mergers | Named | 1 of 3 | ||
| Curtis & Associates | Named | 1 of 3 | ||
| CUSIP® Global Services | Silver Sponsors | 1 of 3 | ||
| Datagum | Gold Sponsors | 1 of 3 | ||
| Deutsche Boerse Group | Gold Sponsors | 1 of 3 | ||
| dGb Earth Sciences | Sponsors & Exhibitors | 1 of 3 | ||
| Dow Jones Newswires | Silver Sponsors | 1 of 3 | ||
| Exegy | Silver Sponsors | 1 of 3 | ||
| Fabasoft AG | USENIX Corporate Members | 1 of 3 | ||
| FactSet | Gold Sponsors | 1 of 3 | ||
| Fenics Market Data & Analytics (“FMD”) | Platinum Sponsor | 1 of 3 | ||
| freistil IT | USENIX Educational Members | 1 of 3 | ||
| Grimes-McGovern | Named | 1 of 3 | ||
| Hubble Network | USENIX Corporate Members | 1 of 3 | ||
| IBM Thomas J. Watson Research Center | USENIX Educational Members | 1 of 3 | ||
| ICE | Gold Sponsors | 1 of 3 | ||
| IEX (IEX Group, Inc.) | Branding Sponsors | 1 of 3 | ||
| IPC Systems, Inc. | Bronze Sponsors | 1 of 3 | ||
| ITRS Geneos | Bronze Sponsors | 1 of 3 | ||
| Jane Street | USENIX Donors | 1 of 3 | ||
| JEGI Leonis | Named | 1 of 3 | ||
| Katalyst Data Management | Sponsors & Exhibitors | 1 of 3 | ||
| Kongsberg | Sponsors & Exhibitors | 1 of 3 | ||
| KX | Bronze Sponsors | 1 of 3 | ||
| LexisNexis® Legal & Professional | Bronze Sponsors | 1 of 3 | ||
| LMAX Group | Silver Sponsors | 1 of 3 | ||
| LSEG Data & Analytics | Host Sponsor | 1 of 3 | ||
| MarketAxess | Silver Sponsors | 1 of 3 | ||
| Massive | Bronze Sponsors | 1 of 3 | ||
| MixMode | USENIX Educational Members | 1 of 3 | ||
| Moloco | USENIX Educational Members | 1 of 3 | ||
| Moody’s | Silver Sponsors | 1 of 3 | ||
| Nasdaq | Silver Sponsors | 1 of 3 | ||
| NetApp | USENIX Donors | 1 of 3 | ||
| Neudata | Bronze Sponsors | 1 of 3 | ||
| NSE Data & Analytics Limited (NDAL) | Bronze Sponsors | 1 of 3 | ||
| Opswerks | USENIX Corporate Members | 1 of 3 | ||
| Options IT | Branding Sponsors | 1 of 3 | ||
| Oracle | Gold Sponsors | 1 of 3 | ||
| OTC Markets | Silver Sponsors | 1 of 3 | ||
| Parameta Solutions | Silver Sponsors | 1 of 3 | ||
| peerj (logo image file) | Open Access Publishing Partner | 1 of 3 | ||
| Petrabytes | Named | 1 of 3 | ||
| Petrolink | Sponsors & Exhibitors | 1 of 3 | ||
| Pyth Network | Silver Sponsors | 1 of 3 | ||
| Rimes | Gold Sponsors | 1 of 3 | ||
| S&P Global Market Intelligence | Mermaid Sponsor | 1 of 3 | ||
| SIX | Gold Sponsors | 1 of 3 | ||
| SLB | Named | 1 of 3 | ||
| The London Metal Exchange | Bronze Sponsors | 1 of 3 | ||
| Tieto Tech Consulting | Named | 1 of 3 | ||
| Tradeweb Markets Inc. | Gold Sponsors | 1 of 3 | ||
| TraditionData | Silver Sponsors | 1 of 3 | ||
| TRG Screen | Silver Sponsors | 1 of 3 | ||
| Van Haren Publishing | Named | 1 of 3 | ||
| VendEx Solutions | Branding Sponsors | 1 of 3 | ||
| Waypoint Trading Solutions | Farewell Reception Sponsor | 1 of 3 | ||
| Yokogawa | Sponsors & Exhibitors | 1 of 3 |
The outside view
A nonprofit that stewards the Open Source Definition and reviews and approves software licenses for conformance, serving as the recognized authority on what qualifies as open source and advocating for open source software.
- Authority
- Build
- Outward
- Volunteer
Their shape
The Citadel
Led from the center, built to endure.
The Citadel runs on clarity and decisiveness, its direction held by a strong center the whole organization moves behind. Its gift is speed and coherence, its challenge is leaning too heavily on the few at the middle.
Also reads toward The Movement and The Republic.
Strengths
Not an official page of Open Source Initiative. Sociogene does not consult. Everything here comes from public sources, dated and linked. Something wrong here? Tell us what we missed.