Orbit: Our fully customisable and flexible project management software

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A full suite of completions and commissioning services available

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Our team has a wide range of expertise and experience across a number of sectors

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Browse through all our latest vacancies and opportunities

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Read about our latest developments, challenges and achievements

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Completions and Commissioning Management Services

We’re OCCMS, a specialist completions and commissioning services provider.

We supply consultancy and fully-managed specialist services, resources and class-leading technology all geared towards the safe and timely start-up of our clients’ assets on a worldwide footprint.

Orbit: Our fully-customisable completions and commissioning project management software

The perfect marriage of innovation, digitisation, interfacing and ultimate project outcome delivery

Orbit is our completions and commissioning management system. This innovative software application is the latest in cutting-edge technology, leading our revolution in project management and delivery for our clients in the energy, clean energy, built environment, life sciences, mining and defence sectors.

Interested in finding out how Orbit could take your project management to the next level?


Client Projects

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OCCMS Services


Our team has extensive experience in thinking about the end of the job, right from the beginning, across a wide range of sectors. Our associates ensure your project sets off on the right foot and stays there all the way through to operations handover.


We understand the value of a high-quality handover from construction and the value of a highly productive pre-commissioning campaign to the overall project’s success objectives. This service is fully focussed on delivering that foundation for success.


Pre-commissioning that fully utilises the power of completions advanced work packaging by sub-system and discipline for a cost effective, fully scoped, planned and productive campaign.


We strike the right balance between laying the foundation for success in planning and preparation and the ultimate delivery execution of dynamic or system commissioning. Our overall objective focus being on safety at start-up, schedule and cost-efficiency.

Start-up and Operations Support

Getting the commissioning right is just the first step. We also provide services to our clients on operations readiness, operations handover, start-up support and early production support.

Global Mobility

We have proven experience and compliant processes in placing people where they need to be on a global basis so that they become immediately productive at the point they need to be.

Careers - Commissioning, Decommissioning and Completions roles

Career Opportunities in Commissioning and Decommissioning and Completions Are you an engineer looking for complex, meaningful projects? Apply your technical skills on both ends of the asset lifecycle with our commissioning and decommissioning teams.

Latest news

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Successful project delivery: How OCCMS can help

Delivering a successful project takes the right balance of people and procedures. If a team, a process or a contractor isn’t delivering, cracks can soon begin to show. Projects can fall months behind schedule, resulting in delays.

Technology in Engineering: Pre-Commissioning Software and More

From the data management systems to robots and drones, OCCMS will explore the expansion of technology in the engineering industry. Find out more on site.

Project Completions: Why Departments Are Resisting Change

There are many reasons for not embracing change within both business management and project delivery.

OCCMS welcomes Steve Drummond and Jamie Japp in new staff roles

As OCCMS gears up for further growth, we get the chance to meet Steve Drummond and Jamie Japp, we ask them some questions about their new roles with OCCMS.

How Technology Is Taking the Engineering Industry to the Next Level

Technology continues to evolve at a rapid pace, driving important changes in people’s private and professional lives. Most sectors are continuously adapting to several innovations, and the engineering field is no exception.

How to Monitor Productivity and Connectivity Within Your Business

Preserving connectivity and productivity has always been a crucial component for modern businesses to stay afloat and remain competitive in challenging market environments.

Early Engagement in the Engineering Sector

In the complex and challenging world of engineering, there is no denying that employing a “left-to-right thinking” methodology is essential.

Stacking Up the Problems: What is Challenging Construction Engineers?

Over the past couple of years, we have been put to the test in several ways. The pandemic has affected both our pockets and our overall well-being and it continues to pose a fair few challenges.

Skilful Project Leaders in the Making: What Qualities Do You Need?

The world continues to evolve at a rapid pace, and we are all expected to keep up to speed with its innovations. You are asked to stay on top of the latest technological developments, while also feeding and enriching your skills on a constant basis.

OCCMS success defies COVID pressures and downturn in Oil and Gas industry

OCCMS decision to re-expand its services arm with re-engagement of previous MD pays dividends despite the current climate.

Orion Group and OCCMS form Metrum partnership with Metering Specialists

Metrum metering specialist services division formed for the provision of fiscal and process metering expertise and solutions.

OCCMS teams up with Dexcrest for provision of Competency Managed Completions and Commissioning services

Specialist Commissioning firm Dexcrest joins Orion Group and OCCMS for a joint service underpinned both by technology and competence management.

OCCMS to expand services arm into North America, Middle East and AsiaPac

Successful 2020 for OCCMS triggers expansion of services into new geographic regions

Commissioning Test Procedures successfully delivered to OCCMS’s clients over the last 18 months sparks innovative development of Orbit software

OCCMS’s successful Commissioning Test Procedure writing service is to be expanded into a fully digitised solution for use in the field.

Large 5 year Brownfield Completions and Commissioning support services contract acquired with EPC consortium for North Sea assets

OCCMS has secured a long-term contract with an EPC consortium for the supply of Brownfield Completions and Commissioning support services.