Severfield plc is the United Kingdom's largest structural steelwork contractor, specializing in the design, fabrication, construction and erection of steel-framed structures; it also manufactures specialized products including Severstor robust steel-framed modules for housing electrical switchgear and critical systems in nuclear, power, oil, gas and rail sectors; Rotoflo high-efficiency discharge systems and Siloflo for materials handling; bin activators; modular frames for commercial, healthcare, education and accommodation buildings; Seversafe safety systems; Fabsec composite beams; and pressure relief valves. The company operates through segments comprising Core Construction Operations, serving sectors such as stadia and leisure, transport infrastructure including bridges and airports, commercial offices and data centers, industrial and distribution facilities, nuclear, education, power and energy; and Modular Solutions, incorporating Construction Metal Forming for cold-rolled steel products and joint ventures like JSW Severfield Structures in India for steel decking and light gauge framing. Founded in 1978 and headquartered in York, England, Severfield maintains manufacturing facilities across the UK in Dalton, Sherburn, Lostock, Carnaby and Ballinamallard; in Europe via its Netherlands-headquartered Voortman Steel Construction operations in Rijssen and Maassluis with offices in Breda; and supports projects throughout the UK, Republic of Ireland and continental Europe. Recent developments include the 2023 acquisition of Voortman Steel Construction Holding B.V. to expand European capabilities and access new markets with advanced robotic production technology; the December 2024 contract with Ørsted for the Hornsea 3 offshore wind farm marking entry into offshore renewables; and in 2022 the creation of Severfield Nuclear and Infrastructure division from the prior acquisition of DAM Structures and Harry Peers & Co, enhancing focus on nuclear and transport sectors.