Secure. Governed. Sovereign.

AI infrastructure that runs inside your boundary.

Substrate is governed AI infrastructure for enterprises and government. It runs on your hardware, in your cloud, under your jurisdiction. Every action is approved, logged, and reversible. And it is priced as infrastructure, not seats, so the cost is predictable before you sign.

Sovereignty is an architecture decision, not a promise.

The same platform runs in three topologies. You choose the one your regulators, your security team, or your mission requires.

• Self-hosted: your hardware, air-gapped if you require it, inside your jurisdiction.
• Your cloud: your tenancy, in-country or EU residency, operated by us in the region you choose.
• Partitioned enclave: for multinational missions; data partitioned by releasability, with provenance proof per record.

The work gets done, inside your boundary.

Give Substrate a goal and it does the work: it plans the steps, runs them in the background, checks itself, and brings back a finished result with its sources attached. A system that works for your team, and that stops to ask before anything you can't undo.

A process you can plan around.

Four steps, in the same order every time: scope with your team, security review before signature, deploy in your boundary, then operate with a full audit record. You know what happens next, what it costs, and who signs.

The claims you can test.

Every statement below is a property of the platform you can verify in a deployment, not a number we invented for a slide.

• A record you cannot fake: hash-chained and append-only, built to the EU AI Act Article 12 logging model.
• Replay the whole run: deterministic recall of exactly who did what, with what data, under which policy, and at what cost.
• Evidence packs, sealed: every deliverable exports with its sources, approvals, and review record sealed, so you can hand it to a customer, an auditor, or a court.
• Isolation by construction: each unit of agent work runs in its own sealed Firecracker microVM, destroyed when the job ends.

It stops before anything you can't undo.

Every consequential action resolves to proceed, ask a human, or never, and the classes that can hurt you sit under a floor no setting can lower. What runs is approved by a person, written to a record that cannot be rewritten, and scoped so that what one tenant or mission can see, another cannot. Your data remains yours: every deployment can export its full state in open, documented formats.

Read the architecture notes.

The planes, the policy engine, the isolation model, and the audit record are built into the platform rather than described in a PDF. We wrote down how each part works in plain technical language.

Run AI you can defend.

Request a demo and we will walk your team through a deployment inside your own boundary. Explore the solutions, the platform, and the government and defence page, read the engineering blog, or request a demo. Contact: [email protected].