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?
CONTACT US TODAYClient Projects
View our workLarge Brownfield C&C Services - UKCS

A large 5-year Brownfield Completions and Commissioning support services contract acquired with EPC consortium for a large IOC’s UKCS assets.
Large Onshore Gas Plant Reconfiguration Project

A large 2-year Completions and Commissioning service to support the reconfiguration of an onshore gas plant to receive gas from a new offshore platform and process for transfer to the UK’s Gas Network.
OCCMS Services
Consultancy
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.
Completions
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
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.
Commissioning
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.
Latest news
View all newsOCCMS 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.