They are one of the largest technical service providers in the UK and Ireland, with extensive expertise and experience in engineering services, technical facilities management and systems integration.


With over 50 years’ experience in delivering engineering solutions, Dornan is recognised internationally as a leading, fully-integrated engineering services contractor. Their track record for responsibility – from site safety to delivering on client expectations – continues to win them repeat business with major clients.

Kantor Energy

Kantor Energy is a Specialist District Energy Design & Build contractor whose focus is to deliver turnkey On-Site Decentralised Sustainable Energy Solutions.

Gratte Brothers

Gratte Brothers Group is one of the UK’s leading independent building services companies providing from one source, a complete range of electrical, mechanical, security and commercial catering facility services.

Lorne Stewart

Are one of the UK’s leading independent building services companies with an annual turnover of over £200m. They provide a range of specialist skills through their Mechanical & Electrical Engineering.

Vital Energi

With over 30 years’ experience in the District Heating and Cooling industry, Vital Energi are responsible for some of the UK’s first and largest award winning district energy projects. Vital Energi operates in a market where safety, best practice and up-to-date knowledge are paramount.