Keltbray

Keltbray is a privately owned UK engineering and construction services group founded in 1976, originating as a demolition and environmental remediation contractor and expanding across the built environment value chain. The group now focuses on specialist engineering and early‑stage construction services in commercial, industrial and residential markets across the UK and selected international locations. Its integrated, largely self‑delivery model combines in‑house design, engineering and complex construction capabilities, supported by specialist plant and logistics. Service lines span demolition and remodelling, decommissioning (including in highly regulated nuclear and energy environments), brownfield enabling and remediation, environmental solutions, piling and ground engineering, reinforced concrete structures, asbestos removal, haulage, lifting services, technical testing and occupational health. Keltbray positions its core purpose as redefining how sustainable development is delivered, operating at the “doing” end of the construction value chain and supporting clients to enhance, upgrade and decarbonise capital assets. It works in complex and regulated settings for both public and private sector customers, including defence, government, transport, heritage, leisure, commercial and energy sectors such as nuclear. The company has delivered enabling and structural works on high‑profile UK schemes including The Shard, London Thameslink, Bradwell power station deplanting, Battersea Power Station, Chelsea Barracks, Crossrail and the Great Western Mainline. In energy networks and low‑carbon infrastructure it has undertaken civil engineering for all three phases of Dogger Bank Wind Farm’s onshore converter stations alongside Hitachi Energy, and delivers large capital electricity network upgrades for Scottish and Southern Electricity Networks under a framework expected to support projects worth over £1bn by 2028. In 2024 Keltbray sold its Infrastructure Services business to EMK Capital to sharpen its focus on built environment and major civil engineering markets.