The company

We built it because nobody was going to sell it to you.

Three beats, and they explain why a partner program exists at all.

01
The gap
The best adversarial AI in the world sat inside the government.

Our founders spent two decades on DoD, IC, and federal networks, where the adversary is a nation-state and a missed finding is a national security problem, not a compliance fine. No commercial vendor was closing that gap.

02
What they built
Forged under DARPA CASTLE, not in a product lab.

An autonomous, agentic AI platform for adversarial threat emulation, supported by a DARPA contract. Its agents use reinforcement learning to emulate state-sponsored threats, validated through Department of Defense training exercises.

03
Why a partner program
A company of operators is not going to out-market Horizon3.

So we do not try. We put the platform in the hands of the firms who already own the client relationship, pen testers, MSSPs, MSPs, and VARs, and we bring the go-to-market muscle they cannot afford to hire.

What that means for you

A pen test firm, an MSSP, an MSP, or a VAR gets what no incumbent will offer: a purpose-built cyber intelligence platform with real DoD pedigree, and a GTM team that works your pipeline like it is our own.

OPERATOR-BUILT

Our team does not just build security software. We have operated in the environments you are trying to defend.

Ready to learn more?

See what makes the product different.

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Operated responsiblySIEGE operates to the principles ofNIST AI RMFEU AI ActISO 42001
Protected territory, DoD-grade validation to sell, and a GTM team that builds your campaigns. Applying takes two minutes.