Commissioning & Start-Up

Capability

Control system commissioningand start-up services.

ATG engineers have commissioned control and safety systems on gas-to-liquids, NGL, offshore, desalination and power assets for Chevron, GASCO, Shell, Tengizchevroil and Petroleum Development Oman. We bring that method to a pumping station as readily as to a plant.

The plant starts when the checklist says so.

What ATG delivers

Scope we takeunder our own contract.

  • Pre-commissioning: loop checks, I/O verification, cause and effect testing, interface testing with packages.
  • Commissioning and start-up support for DCS, SIS, F&G, PLC and SCADA systems, including operator familiarisation.
  • Systems-completions and MAC interface engineering — punch management, handover dossiers, documented MOC.
  • Resident, rotational and offshore manning under long- and short-form service agreements.
  • Remote engineering support, offline simulation and programme verification.
  • Annual start-up support and shutdown support for seasonal plants and turnarounds.

Platforms and vendors supported

  • All DCS, SIS and PLC platforms listed under Technology coverage
  • Systems-completions databases and punch registers
  • Client permit-to-work and simultaneous-operations regimes

Standards applied

  • Client commissioning procedures and completions systems
  • IEC 61511 (SIS validation)
  • ISO 9001 hold-point discipline
  • ISO 45001 site HSE

Typical scope of work

From the first meetingto the handover dossier.

The plant starts when the checklist says so.

  • PlanCommissioning procedures, system boundaries, test packs, ITP hold and witness points.
  • TestLoop, function, C&E and interface tests with evidence; punch register with named owners.
  • StartStart-up support, tuning, performance demonstration, operator familiarisation.
  • Hand overTurnover packs built during the work, verified backups, password-free source code.

Where we work

Al-Khobar to Yanbu,and on rotation worldwide.

Kingdom of Saudi Arabia

Own Saudi entity and employer file; established mobilisation to Al-Khobar, Dammam, Jubail, Yanbu, Jeddah, Rabigh, Riyadh. Works under the client or plant project insurance.

International

Engineering and commissioning teams under long- and short-form agreements — residential, rotational and offshore — supported from Al-Khobar and Lahore.

Related projects

Claim,then evidence.

All 79 references
In-Kingdom
Almarai — Al Kharj

Al Kharj food and dairy complex — process unit troubleshooting and modification

Saudi Arabia2025–2026
In-Kingdom
Marafiq — Jubail IWTP-8

Jubail IWTP-8 industrial wastewater treatment plant automation

Saudi Arabia2025–2026
In-Kingdom
Saudi Water Authority — Yanbu Phase III

Yanbu Phase III — emergency diesel generator, jetty and metering gateway re-engineering

Saudi Arabia2025–2026

Frequently asked

Questions buyers askbefore the shortlist.

Can ATG provide commissioning engineers on rotation?

Yes. Rotational and residential manning, including offshore rotations, is how much of our international work has been delivered — for example 28/28 rotation on the Escravos GTL complex.

Do you commission systems you did not configure?

Yes. A large share of our commissioning work is on systems engineered by others — the OEM or the EPC — where the client wants an independent, experienced commissioning team.

Start a conversation

Tell us whatyou need built.

Send the scope, the P&IDs or just the problem. A control-systems engineer — not a sales desk — replies from Al-Khobar, normally within one working day.

Al-Khobar head office

+966 59 350 1825 · +966 53 849 2308
Proposals sales@atgpa.com
General inquiries@atgpa.com
Technical support techsupport@atgpa.com
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