Stuart Douglas Simpson

PHS Group Holdings Ltd. provided office management services. The company was founded on 1963 and was headquartered in Caerphilly, the United Kingdom.

Charterhouse Capital Ltd. provides investment services. The firm also provides financial and related investment services. The company was founded in 2001 and is headquartered in London, the United Kingdom.

PHS Group Ltd. provides workplace management services. The firm provides workplace services in the areas of hygiene, specialist waste, workplace, and confidential data for customers. The company offers its services through its divisions, which includes: PHS Washrooms, Waterlogic, Wastemanagement, Datashred, Wastekit, Treadsmart, Compliance, Teacrate, Laundryserv, Recordsmanagement, Direct, Greenleaf, Besafe, Allclear, and Wastetech. PHS Group was founded on March 8, 2005 and is headquartered in Caerphilly, the United Kingdom.

Charterhouse Capital Partners LLP (Charterhouse Cap Partners) is a private equity subsidiary of Charterhouse Development Capital Ltd /Bonnyman/ founded in 1934 by Stuart Douglas Simpson. The firm is headquartered in London, United Kingdom.