A Major Step in OCS’s Global Growth Strategy
OCS has officially completed the acquisition of EMCOR UK from EMCOR Group Inc., marking a key milestone in the company’s global expansion and capabilities. The integration brings together two leading hard services-led facilities services organisations, enhancing OCS’s engineering expertise and reinforcing its ability to support customers in complex and critical environments.
Expanding Technical Capability Across the UK and the Wider OCS
This acquisition follows the purchase of FES FM and FES Support Services in 2024, further strengthening the Group’s technical and engineering capabilities. The combined division in the UK will include more than 7,000 engineers and with annual revenues exceeding £1 billion, forming one of the largest hard services providers in the country. This increased scale enhances OCS’s broader global capabilities, supporting customers in regions where regulated environments and asset resilience are vital.
Supporting Global Customers Across Regulated and Critical Sectors
The integration combines long-standing expertise across defence, data centres, government, healthcare, life sciences, and commercial property. This enhances OCS’s ability to support global and multinational customers operating in technical and highly regulated environments, where consistency, compliance, and safe delivery are crucial to maintaining service continuity.
Advancing 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 capability worldwide, supporting customers with energy management, decarbonisation strategies, compliance, smart building controls, and data-led engineering approaches that enhance performance, transparency, and resilience across multiple regions.
“This acquisition supports our ambition to build the best hard services-led facilities services business in the world, with the skills and scale to deliver what customers need across essential sectors. We are bringing together teams known for their technical depth and commitment to safety, which strengthens our ability to make people and places the best they can be”
Rob Legge
Group Chief Executive Officer, OCS
“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.”
Rob Legge
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 Coordinated Global Integration
Over the coming months, colleagues across the OCS will collaborate to ensure a smooth and coordinated integration. This transition will foster shared learning, consistent service standards, and a unified approach to engineering excellence across regions. The integration will continue to be guided by OCS’s mission to make people and places the best they can be, while delivering strong outcomes for customers and communities worldwide.
