Building the free, RHEL-compatible enterprise Linux — forever.
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Foundation

About the FinLinux OS Foundation

A nonprofit trade association, owned by no single company, chartered to keep enterprise-grade Linux free for everyone who depends on it.

Our origins

In 2010, Ron Jagannathan and Paul Robinson founded the FinLinux operating system as a subsidiary of Tomache, Inc., a company specializing in high-frequency trading (HFT) engines built on the Solaris OS.

When Oracle abruptly terminated the OpenSolaris project in August 2010, effectively ending future open-source development of Solaris, the financial technology community faced a critical gap. Solaris had long been a trusted foundation for ultra-low-latency trading systems — and its sudden closure left firms without a reliable, open platform for next-generation financial applications.

FinLinux was created to fill that gap. Purpose-built for high-frequency trading, FinLinux delivers a hardened, performance-optimized Linux distribution engineered specifically for financial workloads. Its mission: to provide a fast, stable, open, and deeply tuned operating system capable of running the most demanding trading and market-data applications with precision and reliability.

FinLinux continues to embody the original vision — a modern, open-source operating system designed for speed, determinism, and financial-grade performance.

Why FinLinux OS exists

For years, a small number of downstream rebuilds gave organizations a free, drop-in replacement for costly enterprise Linux subscriptions. When the terms of upstream source availability shifted industry-wide, many of those projects had to change course or shut down — and a lot of production infrastructure was left looking for a genuinely free, genuinely stable alternative with a real support lifecycle behind it.

FinLinux OS was founded to fill that gap permanently, not opportunistically. Rather than being backed by a single vendor with commercial incentives to eventually monetize the OS itself, FinLinux OS is governed by an independent nonprofit foundation whose only product is the continued existence of a free, RHEL-compatible operating system.

How we're structured

The FinLinux OS Foundation is a member-funded nonprofit trade association. It owns:

It does not sell the operating system, sell support contracts directly, or answer to any single corporate parent. Funding comes from tiered Foundation memberships and sponsorships — see Membership — and day-to-day engineering decisions are made by FLESCo, the FinLinux Engineering Steering Committee, described on the Governance page.

2021
Foundation founded
6
Active SIGs
40+
Regular contributors
4
Architectures shipped

Our commitments

Timeline

2010

FinLinux OS founded

Ron Jagannathan and Paul Robinson found FinLinux OS as a subsidiary of Tomache, Inc., after Oracle's termination of OpenSolaris leaves financial technology firms without an open, low-latency platform.

2021

Foundation chartered

The FinLinux OS Foundation is formed as an independent nonprofit trade association, taking over stewardship of the project.

2021

FinLinux OS 8 “Lemminkäinen” released

First stable release, binary compatible with upstream RHEL 8.

2023

FinLinux OS 9 “Ilmarinen” released

Second major release; FLESCo formally chartered.

2024

Forge build system goes fully public

Build pipelines move to a fully public, reproducible pipeline. See Build System.

2026

FinLinux OS 10 “Väinämöinen” released

Third major release, current stable.