Toby Ulf Helmut Schumacher

Glen Water Ltd. provides remediation and waste management services. The private company is based in London, UK.

Part of Kennedy Valve Ltd., Sembcorp Utilities Services Ltd. is a British company that supplies drinking water and operates wastewater treatment plants. The company is based in Middlesbrough, UK and was founded in 1999.

Laing O'Rourke Plc provides engineering and construction services. It designs, engineers, constructs, manages, and invests in building and infrastructure capital assets across a range of sectors. It operates an integrated business model comprising engineering, construction, and asset management services delivering single source solutions for public and private organizations. The company was founded by Raymond G. O’Rourke and Des O'Rourke in 2001 and is headquartered in Dartford, the United Kingdom.

Biwater Holdings Ltd. provides water and wastewater treatment services. Its services include wastewater treatment, membrane technology, water asset management, and package plants & products. It has locations in Algeria, Sudan, and the United States. Biwater was founded in 1968 and is located in Dorking, the United Kingdom.