OSERA is member-governed by design: the institutions that run the software fund it and set its direction, and the technology vendors who know open source best do the work alongside them โ all under FINOS's neutral governance within the Linux Foundation.
Five global banks fund the alliance and govern it โ one firm, one vote โ as founding Premier members. And membership is global by design: the General tier is sized so banks of every size, in every jurisdiction, can consume the same protection.
Premier member
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Premier memberA Governing Board seat and control of the model: approve projects, maintenance scope, SLAs and vendor-maintainer bids โ plus member access to patched releases.
Meet the Governing Board โSize-based fees give institutions of all sizes member access to the same patched releases and the right to propose new projects. One pooled fix, priced for everyone โ that's the point.
See member benefits โAny FINOS member can participate in OSERA working groups and bid to become a vendor maintainer โ no OSERA membership required.
Explore the workstreams โEach founding Premier member holds a seat on the Governing Board, which sets the direction of the alliance: what gets patched, how the shared backlog is prioritised, who produces fixes and to what standard, and how pooled funds are deployed. The board first convened in August 2026 โ and its members are the institutions standing behind the OSERA Guiding Principles. One seat per Premier member, one firm one vote โ listed alphabetically by institution.
Each member firm names one delegate per body it joins. The board meets monthly; working groups and task forces run weekly.
Prioritisation of the remediation backlog is automated on shared, neutral scoring โ the board sets policy and handles escalations, not per-CVE decisions.
OSERA operates under the FINOS charter within the Linux Foundation โ IP, antitrust and confidentiality frameworks the industry already trusts, in a venue no single vendor or country controls.
OSERA was not designed in a conference room. From the first formation calls through the bank-validated pilot, these technology firms put senior, deeply open-source-savvy engineers on the problem โ shaping the model, drafting the standards, and building the pipeline that banks validated end-to-end before launch. That calibre of talent is still doing the work today, and the door is open: any FINOS member can join the working groups and bid to become a vendor maintainer.



Want your firm on this list? Working-group participation and vendor-maintainer bids are open to every FINOS member. Become a FINOS member or head to the workstreams to start contributing.
Two simple tiers for the institutions that run the software โ Premier to govern and prioritise, General to consume at your scale โ plus benefits every existing FINOS member already has. OSERA is a global initiative: a sovereign, community-governed option that lets FSIs anywhere in the world reduce operational risk without depending on any single commercial vendor. The General tier is designed for banks of all sizes, with accessible fees so smaller FSIs can drastically improve their resiliency too. See the full charter and not-for-execution participation agreement.
| Premier | General | FINOS Member | |
|---|---|---|---|
| Annual fee | $100k | $15kโ$90k by firm size | |
| Approve / sunset projects for maintenance | โ | ||
| Approve maintenance scope, SLAs & vendor maintainer bids | โ | ||
| Governing board seat | โ | 1 for the whole class | |
| Committees seat | โ | 1 for the whole class | |
| Member-only access to patched releases | โ | โ | |
| Propose new projects | โ | โ | |
| Working group participation | โ | โ | โ |
Working-group participation โ and bidding to become a vendor maintainer โ is open to all FINOS members. No OSERA membership required.
Fund and govern the alliance โ and consume member-ready patched releases at your scale.
Become an OSERA memberNot yet a FINOS member? Email membership@finos.org.
Join the working groups and bid to become a vendor maintainer โ open to every FINOS member, no OSERA membership required.
Become a FINOS memberAll OSERA source is public โ explore the backpatch lines and standards on GitHub and build it yourself.
Build it yourselfPremier membership includes a Governing Board seat and full control over what gets patched, to what standard, and by whom. General members elect a class representative โ and every FINOS member can join the working groups.
Become a memberSee the charter and participation agreement ยท questions? membership@finos.org