
AMIRAL mega-refinery
A five-year engineering program, with a team of fifty across operator and contractor. Output to SAP PM.
Holis delivers SaaS solutions at every stage of an industrial asset’s lifecycle, streamlining maintenance and inspection processes to ensure integrity, reliability and enhance operational efficiency.


Where to start
DIAG+ is a focused read of the inspection and maintenance
data in your ERP.
Taking over a contract, or running your own asset, you come out
with the same thing:
the real state of your data, costed quick wins, and a ranked plan.
DIAG+ stands on its own.
It tells you where to invest, and where not to.
What comes after
One complete and modular suite across the asset lifecycle, to cut inspection and maintenance costs and extend asset life.

Turns evolving project engineering data into a validated asset register, ready for operations.
Explore PREMIS →
Maintenance and operations work in one place, on top of the ERP you already run. It does not replace it.
Explore OPERA →
Your whole plant in 2D and 3D with its data projected onto the model, and multi-criteria simulations to optimize inspection and maintenance campaigns.
Explore LENS →On real assets

A five-year engineering program, with a team of fifty across operator and contractor. Output to SAP PM.

Topside inspection and integrity operations, on a solution tuned to TotalEnergies standards.

Structured and unstructured sources reconciled into a single integrity register for a life extension project.
How we work
Holis was founded by inspection and maintenance engineers, not by a generalist software vendor. Inspection and maintenance engineering for heavy industry: Oil & Gas, Chemicals, Agro-industry. Twenty years on major industrial sites across Europe, the Middle East and Africa.
A read of the data you already hold, before anything is committed.
The right mix of tooling and hands-on engineering.
Modules scoped to your asset, not to a catalogue.
A clear plan for data, integration and training.
Ongoing engineering support, long after go-live.
Next step
A first sixty-minute conversation is enough to frame the scope and decide together whether a DIAG+ makes sense for your asset.
Or write to us at [email protected]