Derek Mark Harrington

Part of Kier Group Plc, Kier Infrastructure & Overseas Ltd. is a British company that offers civil engineering and infrastructure services. The company is based in Sandy, UK and was founded in 1974.

Part of Kier Group Plc, Kier Professional Services Ltd. is a British company that provides professional services. The company is based in Sandy, UK and was founded in 2014.

Construction Study Centre Ltd. provides construction training services. It offers public and in-house courses that covers contract and law; construction, design, and management; health and safety; project management and soft skills; and property, regulation, and environment. The company was founded on October 31, 1990 and is headquartered in Coventry, the United Kingdom.

Part of Costain Group Plc, Calvert & Russell Ltd. is a British company that provides tailored commercial, contractual, and planning services. The company is based in Maidenhead, UK. The company was founded in 1997. Calvert & Russell was acquired by AB Rhead & Associates Ltd., part of Costain Group Plc from August 24, 2015 on August 27, 2013.

Part of Kier Group Plc, Kier Build Ltd. is a British company that constructs large-scale building projects. The company is based in Sandy, UK and was founded in 1981.

Part of Kier Group Plc, Kier National Ltd. functions as an investment holding British company. The company is based in Sandy, UK and was founded in 1987.