Deca Dev Ltd is a UK-based security engineering company. We build hosting infrastructure where security is foundational — not bolted on after the fact.
The standard approach to hosting is to deploy first and harden later — if at all. Security configurations are optional, defaults are permissive, and compliance is treated as a checkbox exercise. We saw too many platforms where "secure hosting" meant a firewall in front of an otherwise unprotected stack.
We decided to build the platform we wanted to use ourselves — one where every layer, from the kernel upward, is hardened before it ever accepts a workload.
DSEC OS is currently in active use on our own internal production systems. We run real workloads on it daily — it's not a prototype or a proof of concept.
We're now beginning to onboard a small number of external organisations through our early access programme. We're looking for security-conscious teams who need sovereign hosting and are willing to work closely with us as we refine the platform for general availability.
We're not trying to scale fast. We're trying to build something we're proud of, and we'd rather work with ten clients who genuinely need this than a hundred who don't.
We're onboarding a small number of organisations who need sovereign, security-first hosting. If that sounds like you, we'd like to hear from you.