Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,124 pages of information and 233,665 images on early companies, their products and the people who designed and built them.
The company was founded in 1989 as South West Water at the time of the privatisation of the Water Industry in England.
1993 Acquired Haul Waste
1995 Acquired Blue Circle Waste Management.
1998 Changed its name to Pennon Group plc
2004 The company successfully saw off a takeover bid from Terra Firma
2004 Acquired Thames Waste Management
2006 Acquired Wyvern Waste in 2006,
2008 Acquired Shore Recycling
The company's main asset is South West Water, which supplies water and sewerage services in Cornwall, Devon and parts of Dorset and Somerset.
It also owns Viridor, a waste management business.
2015 Employs 4,800 persons (Virador 3,000, South West Water 1,400 of these)