We provide a wide range of products and services to the oil & gas production and distribution sectors, with our extensive experience and the engineering know-how to enable us to provide support services globally for offshore environments.

The Greenray group of companies has over 30 years’ extensive experience of dealing with the global oil & gas industry, and we have a dedicated travel and logistics department that assists with mobilisations worldwide.

We invested in a turbine overhaul facility in Aberdeen, close to many North Sea operators, which has more than 5,300 sq. ft. of workshop and office space.

Our service centre in Aberdeen is the focal point for all UK oil & gas customers, and is where our customer service managers are based along with dedicated storage for spares, which we manage on behalf of customers.

The services we offer for mature equipment include:

  • On site field service support including ad hoc maintenance and emergency call out support
  • Service contracts, including full scheduled outage maintenance programmes for the UK and overseas assets
  • Spare parts supply including strategic spares planning and inventory management
  • Complete overhauls and refurbishments in our specialised workshop facilities
  • Life extension and upgrade solutions, including feasibility studies and engineering consultancy, assessing for obsolescence and providing solutions to extend equipment life
  • Complete turnkey package installation and commissioning
  • Component repairs and servicing
  • Proactive project management, dedicated points of contact to ensure the completion of your project is effective and efficient
  • Maintenance for turbines, gearboxes, generators and control instrumentation
  • Reengineering and manufacturing
  • Operational reviews, trouble shooting and fault finding, with advice from our technical experts on how to achieve the most efficient operations
  • Relocation of equipment
  • Bespoke or off the shelf rotating machinery control systems for both industrial gas turbines and other rotating plant, such as generator controls, on a worldwide basis
  • Turnkey outage management services, covering equipment from the inlet system through to the exhaust or delivery systems. We provide HV / LV equipment maintenance and all rotating plant elements

Offshore Oil & Gas

Working extensively in offshore environments, understanding the needs of those operators who work in challenging circumstances. We pride ourselves on providing the highest quality of service coupled with our unrivalled health and safety record


We recognise that availability is key in this industry, and together with increasing your reliability; we will work with you to review your equipment seeking an increase in your plant availability and reliability.

Power Generation/Utilities

Maintaining industrial gas and steam turbine equipment within the utility and industrial power generation industries is core to our business. We can provide simple field engineering services to large turnkey projects.

Energy from Waste/Biomass

Helping to achieve energy recovery and waste reduction, working with you from scheme conception, through implementation to future operation and maintenance.


Similar to our offshore oil and gas capability, we can provide a wide range of services, and use our extensive experience to support your installation.

Why Integrated Turbine Systems

Skilled, experienced engineers and project managers work to make sure your project runs seamlessly from start to finish.