Bringing Together Two Leading Hard Services Organisations
OCS has formally completed the acquisition of EMCOR UK from EMCOR Group Inc., bringing together two of the UK’s largest hard services-led facilities services businesses. The combined organisation brings significant engineering depth, strong national coverage and a shared commitment to safe, high-quality service for customers across complex and critical environments.
Building a Stronger UK Technical and Engineering Platform
The acquisition follows the purchase of FES FM and FES Support Services in 2024, further strengthening OCS’s capability in the UK hard services market. The combined division will include more than 7,000 engineers and annual revenues of more than £1 billion. This scale supports customers operating in highly regulated sectors, where resilience, compliance and performance are critical.
Supporting Critical Sectors With Consistent Expertise
The integration brings together established capabilities across defence, data centres, government, healthcare, life sciences, and commercial property. Teams will support customers with a hard services-led approach to integrated facilities management, supported by deep technical expertise and a commitment to delivering reliable outcomes.
Strengthening Energy Services and Technology Enabled Engineering
Both organisations bring recognised strengths in asset data, performance insight, and predictive maintenance. These complement OCS’s established Energy Services team, supporting customers with energy management, decarbonisation strategies, compliance, smart building controls, and data-led engineering strategies that enhance performance and resilience.
“Bringing these businesses together creates a stronger hard services platform for the UK, with deeper technical capability, wider sector coverage and enhanced engineering support for customers across complex and critical environments. The integration of our divisions will give colleagues more opportunities to develop and customers a broader range of integrated services across the UK. Our priority now is a smooth transition that protects service quality for every customer. Both organisations share similar values and a focus on people, so colleagues will continue to deliver with the same professionalism and care.”
Daniel Dickson
Chief Executive Officer, OCS UK & Ireland
“We are thrilled to join an organisation that shares our deep commitment to putting customers and our people at the heart of everything we do. The combined organisation will bring specialist skills to support customers in environments where performance, safety, and reliability matter every day. We look forward to working with teams across the business as we combine our strengths in Facilities Management, hard services, engineering excellence, and innovation across data insights, asset, and carbon management.”
Cheryl McCall
Chief Executive Officer, EMCOR UK
Supporting a Smooth Transition
Over the coming months, colleagues across the business will work together to ensure a smooth and well-supported integration. The transition will be guided by OCS’s mission to make people and places the best they can be, while continuing to deliver strong outcomes for customers and communities across the UK.
