Erwin Sander Wieffering

Oak Hill Capital Management LLC (Oak Hill Capital) is a private equity subsidiary of OHCM Management LLC founded in 1986 by Robert M. Bass. The firm is headquartered in New York.

Apax Partners (UK) Ltd (Apax Partners) is a private equity subsidiary of Apax Partners Holdings Ltd founded in 1977. The firm is headquartered in London, United Kingdom with additional offices in Mumbai, Hong Kong, Munich, New York, Shanghai and Tel Aviv.

Azelis SA engages in distribution of specialty chemicals. Its services include sampling, logistics, application laboratories, reach regulation, and food development kitchens. It caters to the animal nutrition, food and health, home care and industrial cleaning, personal care, pharmaceutical, electronics, lubricants and metalworking fluids, oilfield, rubber and plastic additives, textiles, and leather and paper industries. The company was founded by Hans Udo Wenzel in 1996 and is headquartered in Munsbach, Luxembourg.

GlobalLogic, Inc. provides software solutions and development services. It operates as a digital product engineering firm. Its services include experience design, product engineering, digital services, labs, and content engineering. The firm operates design studios and engineering centers that specializes in offering customers in the communications, automotive, healthcare, technology, media and entertainment, manufacturing, and semiconductor industries. The company was founded by Sanjay Singh, Manoj Agarwala, Rajul Garg, and Tarun Upadhyay in 2000 and is headquartered in San Jose, CA.

Britax Childcare Ltd. manufactures, designs, and distributes children's car seats, wheeled goods, and related accessories. The company was founded on February 21, 2000 and is headquartered in Camberley, the United Kingdom.

WP SK Holdings Ltd. operates as a holding company with interest in waste collection services. The company is headquartered in Isleworth, the United Kingdom.

TOI TOI & DIXI Group GmbH operates as a holding company with focus on businesses engaged in providing facility support services. The company was founded by Fred Edwards in 1973 and is headquartered in Ratingen, Germany.

Britax Childcare Holdings Ltd. engages in the design, manufacture, and market of child safety products. The company was founded on August 24, 2005 and is headquartered in Camberley, the United Kingdom.

Sage Hominex SA provides innovation software for organizations. It offers consulting and technical services for installation, support, and maintenance of software. It has developed idea management software that helps organizations (public, private, universities, research centers and non-for-profits) manage innovative ideas. The company was founded by Josu Saseta and Jon Aristi in 2005 and is headquartered in Bilbao, Spain.

Versandhaus Walz GmbH provides mail-order catalog services. is Europe's largest specialist mail house for the young family, with many satisfied customers in Germany, Austria, Belgium, France, Luxembourg, Switzerland and the Netherlands. The company was founded by Alfons Walz in 1952 and is headquartered in Bad Waldsee, Germany.

Founded in 1990, Safety-Kleen France Services SAS is a French company that functions as an investment holding company. Part of WP Safety-Kleen (Cayman) Ltd., the company is based in La Courneuve, France.

Founded in 2008, WP SK France SAS is a subsidiary of WP Safety-Kleen (Cayman) Ltd. The company provides combined administrative office services and is based in La Courneuve, France.

Founded in 1998, Safety-Kleen UK (France) Ltd. is a holding company that operates subsidiaries supplying cleaning equipment. The company is based in Middlesex, UK.

Part of WP Safety-Kleen (Cayman) Ltd., WP SK France Ltd. functions as an investment holding British company. The company is based in Brentford, UK.

Safetykleen Group Services Ltd. operates as a holding company with interest in providing waste management solutions. The company is headquartered in Middlesex, the United Kingdom.

Part of WP Safety-Kleen (Cayman) Ltd., WP Safety Kleen Ltd. functions as an investment holding British company. The company is based in Brentford, UK.

WP Midco3 Ltd. provides parts washing, spray gun cleaning and waste collection. The company was founded on March 26, 2008 and is headquartered in Brentford, the United Kingdom.

Part of WP Safety-Kleen (Cayman) Ltd., SK 5 Ltd. functions as an investment holding British company. The company is based in Middlesex, UK.

Founded in 2008, WP Midco1 Ltd. is a holding British company.

Founded in 2008, WP Midco2 Ltd. is a holding British company that operates as a subsidiary of WP Safety-Kleen (Cayman) Ltd. The company is based in Brentford, UK.

Alcumus Group Ltd. engages in provision of risk management, compliance and certification services. The firm offers risk management services, including web based information management solutions, UKAS accredited certification services, contractor verification, health and safety inspection and consultancy, training and HR consultancy. It serves to the oil and gas, retail, construction and engineering, security, manufacturing, food and drink, public sector, and transport and logistics. The company was founded in 1979 and is headquartered in Cardiff, the United Kingdom.

Founded in 2010, CC 2 (2011) Ltd. operates as a holding British company for its subsidiaries that manufacture and sell children's car seats and wheeled goods. The company is based in Camberley, UK.

Founded in 2000, TechnoWash Ltd. is a manufacturer of industrial washing equipment and ultrasonic cleaning systems. Part of WP Safety-Kleen (Cayman) Ltd., the company is based in Northallerton, UK.

Shilton Midco 2 Ltd. is a holding Caymanian company that provides surface treatment and chemical application services. The private company is based in George Town, KY. and it is not specified if it has subsidiaries in other countries.

Part of Shilton Midco 2 Ltd., Shilton Holdco Ltd. functions as an investment holding British company. The company is based in Middlesex, UK and was founded in 2017.

Part of WP Safety-Kleen (Cayman) Ltd., WP SK Midco Ltd. operates as an investment holding British company. The company is based in Middlesex, UK.

Founded in 1998, Safety Kleen UK (Europe) Ltd. is a subsidiary of WP Safety-Kleen (Cayman) Ltd. and operates as an intermediate holding company. The company is based in Middlesex, UK.

Part of WP Safety-Kleen (Cayman) Ltd., WP SK Ltd. operates as a holding British company providing investment services through its subsidiaries. The company is based in Middlesex, UK.