United Kingdom water companies

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United Kingdom water and sewerage companies
Water only suppliers not shown

Water supply and sanitation in the United Kingdom is provided by a number of water and sewerage companies. Twelve companies and organisations provide drainage and sewerage services, each over a wide area, to the whole United Kingdom; and supply water to most customers in their areas of operation. There are also 'water only' companies which supply water in certain areas. Some companies are licensed to supply water or sewerage services using the networks of other providers.

England and Wales[edit]

In England and Wales the economic regulator of water and sewerage is Ofwat and the quality regulator is the Drinking Water Inspectorate.[1]

Water and sewerage[edit]

Company Approximate areas served Parent Website
Anglian Water East of England Consortium consisting of Canada Pension Plan Investment Board, Colonial First State Global Asset Management, IFM Investors and 3i Official website
Dŵr Cymru Welsh Water Wales Glas Cymru Official website
Northumbrian Water North East England Cheung Kong Infrastructure Holdings Official website
Severn Trent Water West Midlands, East Midlands None (listed on London Stock Exchange) Official website
Southern Water South East England Greensands Holdings Official website
South West Water South West England Pennon Group Official website
Thames Water Greater London, Thames Valley Kemble Water Limited Official website
United Utilities North West England None (listed on London Stock Exchange) Official website
Wessex Water South West England YTL Corporation Official website
Yorkshire Water Yorkshire and the Humber Kelda Group Official website

Water only[edit]

Company Supply area Owner Website
Affinity Water Central region: Amersham, Barnet, Beaconsfield, Bishop's Stortford, Harlow, Harrow, Hemel Hempstead, Letchworth, Luton, Saffron Walden, St Albans, Staines, Stevenage, Uxbridge, Watford, Welwyn Garden City, Woking
East region: Brightlingsea, Clacton-on-Sea, Frinton-on-Sea, Harwich, Manningtree, Wivenhoe
Southeast region: Dover, Folkestone, Hythe, Romney Marsh, Dungeness, Lydd
Morgan Stanley/M&G Investments Official website
Albion Water Albion Water Group Limited Official website
Bournemouth Water Bournemouth, Christchurch, Lymington, Ringwood, Verwood, Wimborne Minster Pennon Group Official website
Bristol Water Bristol, Burnham-on-Sea, Frome, Tetbury, Wells, Weston-super-Mare Grupo Agbar Official website
Cambridge Water Company Cambridge, St Ives South Staffordshire Water Official website
Cholderton and District Water Company Amport, Bulford, Cholderton, Quarley, Shipton Bellinger, Thruxton Cholderton Estate Official website
Dee Valley Water Chester, Wrexham independent Official website
Essex and Suffolk Water Essex region: Basildon, Brentwood, Chelmsford, Southend-on-Sea, Thurrock, Barking and Dagenham, Havering, Redbridge
Suffolk region: Aldeburgh, Eye, Great Yarmouth, Lowestoft, Southwold
Northumbrian Water Group Official website
Hartlepool Water Hartlepool Anglian Water Official website
Portsmouth Water Bognor Regis, Chichester, Fareham, Gosport, Havant, Hayling Island, Portsmouth independent Official website
South East Water Eastern region: Ashford, Canterbury, Eastbourne, East Grinstead, Haywards Heath, Maidstone, Sevenoaks, Tonbridge, Royal Tunbridge Wells, Whitstable
Western region: Aldershot, Basingstoke, Bracknell, Camberley, Maidenhead, Petersfield, Wokingham
Hastings Diversified Utilities Fund/Utilities Trust of Australia Official website
South Staffordshire Water Aldridge, Brownhills, Burton upon Trent, Cannock, Kinver, Lichfield, Rugeley, Sutton Coldfield, Tamworth, Uttoxeter, Walsall, West Bromwich independent Official website
Sutton and East Surrey Water Cobham, Dorking, Horley, Leatherhead, Oxted, Redhill, Reigate, Sutton Sumitomo Corporation[2] Official website


Northern Ireland[edit]

Crown dependencies[edit]


  1. ^ http://dwi.defra.gov.uk/consumers/water-company-maps/
  2. ^ "SESW 2013 annual report" (ASP). Sutton and East Surrey Water. Retrieved 2013-12-04.