Benjamin Warwick Whitworth

Tetra Tech UK Consulting Group Ltd. engages in the provision of project management and technical consultancy services. It operates through the Consultancy Services and International Development segments. The Consultancy Services segment includes Infrastructure and Built Environment, Programme and Project Management, Surveying and Asset Management, Environmental, and Planning and Transport. The International Development segment involves in building state of the art public transport systems and improved traffic management in developing cities. The company was founded on December 6, 1984 and is headquartered in Leeds, the United Kingdom.

Signet Planning Ltd. provides planning and urban design services. It serves the business and industry, education and health, energy, leisure, sport, and tourism, minerals and waste, pub, restaurant, and hotel, residential development, and retail and economic planning. The company was founded by Simon Wallace Chadwick, James Edward Hobson, and Ian Reginald Rowe in 2005 and is headquartered in Leeds, the United Kingdom.

Part of Tetra Tech, Inc., Tetra Tech Ltd. is a British company that provides engineering consulting services. The company is based in Leeds, UK. Tetra Tech was acquired by Amey Ltd from Tetra Tech UK Consulting Group Ltd. on 2010-07-01. The company was founded in 1985.

Part of Gleeds UK Ltd., Gleeds Energy Ltd. is a company that provides surveying and engineering services. Gleeds Energy Ltd. is based in London, UK. Gleeds Energy was founded in 2005.