Built on experience. Driven by what’s next.
Discover how our heritage, expertise and ambition continue to shape the future of the built environment.
At SES, we’re proud of our heritage, but we’re equally focused on what’s next.
For more than 65 years, we’ve delivered engineering excellence across some of the UK’s most significant projects, building lasting relationships with customers through quality, collaboration and technical expertise.
Today, SES brings together engineering, manufacturing and technology to solve increasingly complex challenges across the built environment. Combining the skill of our people with innovative delivery methods, digital expertise and offsite manufacturing capabilities, we create smarter, more efficient and more sustainable solutions for our customers.
As our industry continues to evolve, we remain committed to investing in the people, capabilities and partnerships that will help shape the places where future generations live, work, learn and thrive.
911
Employees
£590.4m
Revenue (2025)
23
Projects completed in 2025
Rooted in heritage.
Powered by innovation.
United by purpose.
We partner with Tier One contractors, developers and end users to solve increasingly complex challenges across multiple sectors including commercial, healthcare, critical infrastructure and data centres. By combining our heritage of craftmanship and precision with offsite manufacturing, advanced digital design and innovative delivery methods, we create high-performing environments that provide greater certainty, improved quality and lasting value.
Our complimentary capabilities enable us to support projects from concept through to delivery and operation, helping customers achieve more efficient, sustainable and resilient outcomes.
Three interconnected businesses
SES Engineering
Our core business. Decades of experience delivering MEP engineering on complex, high-stakes infrastructure, often in live, operational environments where failure isn’t an option.
SES Manufacturing
Digitally enabled offsite manufacturing. We build components, modules and entire building sections indoors, under factory conditions, before they reach a construction site – hidden in plain sight inside the buildings we help deliver.
SES Technology
Our newest business, launched in 2025, built to meet the UK’s growing demand for hyperscale data centre capacity. It’s early days: we’re building the platform, the team and the first partnerships that will define this business.
Corporate information
SES (Engineering Services) Limited is one of the UK’s leading building services businesses and is a member of the Wates Group.
SES and its Board are committed to upholding the highest standards of conduct and ethics among our business, our employees and our supply chain and we take our corporate governance responsibilities very seriously.
Governance helps us to conduct our business responsibly, with openness and integrity, and in accordance with all of the laws and regulations to which our business activities are subject.
Click here to access our Corporate Governance library, including our Code of Conduct, statements, reports, policies and information about our senior management team.