Precision engineering for infrastructure the world runs on.


Most MEP contractors come to data centers as one sector among many. OneStac was built for it from the ground up.
Every vendor relationship, every engineering protocol, every commissioning standard has been developed specifically to cater for the demands of mission-critical data center infrastructure.

When the engineering is right from the outset, everything that follows: procurement, installation, testing, handover, runs to specification.
That is the only acceptable standard in this sector, and it is the standard we build for.
One contract. All systems.
No gaps between scopes.
In most data center builds, mechanical, electrical, plumbing and fire protection are delivered by separate contractors. Each owns their scope. Nobody owns the interfaces between them. That is where schedule delays and commissioning failures concentrate.
OneStac designs, builds and commissions all systems as one integrated package, under one engineering team and one contract.
Our Process
Precise at every stage. Seamless across all of them.













