MEDIA KIT · PRESS & PARTNERS

Everything you need to tell our story straight.

Boilerplate, canonical messages, fast facts, and collateral — all honest, all verifiable.

One house rule governs everything on this page: we only claim what we can show. Every capability statement below traces to running code, a bootable image, or a public commit — and where we're early, we say so. Quote freely; the wording below is canonical.

Boilerplate

About sigilOS (short) sigilOS is a capability-secure operating system written entirely in Sigil, a new memory-safe systems language — from the firmware to the desktop, with zero C. Authority is explicit: software can touch only what it is handed, enforced by the hardware and proven before the code runs. It boots on real hardware today and is built in the open from Manhattan, Kansas.

About sigilOS (one line) sigilOS — the safe substrate for the next era of computing: one safe language, one image; embedded rigor, verified security, and a real desktop, at once.

The canonical messages

For security leaders You already know where breaches come from. So do we — and we removed it. Authority you never grant can't be abused: enforced by the hardware, proven before the code runs. Not detection. Not a patch. The foundation itself.

In plain terms Today's computer is a building where every worker gets a master key, and security is the endless work of watching them. sigilOS gives each worker a key to exactly one room — and the locks are the walls themselves, so a key can't be copied, forged, or picked. There's nothing to catch, because there's nothing to abuse.

The bet, in one breath Almost every breach traces back to software holding authority it never should have had. That's a foundation problem, not a patch problem — so we built a new foundation, and it already boots on real hardware. One safe substrate, from a doorbell to a jet fighter.

Fast facts

What	A capability-secure operating system (sigilOS) and the memory-safe systems language it's written in (Sigil), plus a self-hosting, byte-reproducible compiler (cc0).
The differentiator	Four hard things at once, on one safe language: explicit authority (no ambient trust), memory safety (zero C), contracts proven before runtime then erased, and a verifiable reproducible trust base.
Proven today	Boots on real x86-64 hardware to a rendered login; the compiler self-hosts reproducibly; a first native app (Forge) ships for macOS, Linux, and Windows.
Honest status	Pre-1.0. Uncertified. Raspberry Pi 4B bring-up and driver breadth are active work — developed fully in the open on the blog and changelog, hard parts included.
Security posture	We commissioned an independent red-team/blue-team review of the entire stack while still pre-1.0 and published the findings — strengths, gaps, and a public remediation plan, no exploit details. Read the brief.
Where it fits	Safety-critical & high-assurance · defense & sovereign · embedded/edge · gaming & enthusiast (shipping) · the Sigil developer platform — detailed, with honest fit labels, in the industry packets.
Headquarters	Manhattan, Kansas — "the Little Apple."
Web	sigilos.net · press contact: sigil2@grio.co

Downloads

DECK · .PPTX · 12 SLIDES

Investor deck

Problem → insight → the plain-terms analogy → product → moat → proof-on-metal → why-now → market → the competition (honestly) → GTM → the ask.

Download

BRIEF · .PDF · 1 PAGE

One-page brief

The whole story on a page: the problem, the bet, plain terms, why now, the moat, proof, and the ask — with honest maturity labels.

Download

WEB · THE FLAGSHIP MESSAGE

The manifesto

The full narrative — written to make the most battle-hardened security leader curious. Read it the way a visitor does.

Read it

PROOF · RUN IT YOURSELF

Forge (native app)

Don't take our word for anything — download the shipping native binary for macOS, Linux, or Windows and verify its SHA-256.

Get Forge

Ground rules for quoting us

Say we're early — it's true and we say it ourselves. Don't say "certified," "production-ready," or attach benchmarks we haven't published; if you need a claim verified, ask (sigil2@grio.co) and we'll point you at the commit, the image, or the boot footage. The difference model is the canonical comparison against QNX, seL4, Linux, Windows, and macOS — where a competitor genuinely leads, it says so.