A comprehensive list of all Utility Companies in UK , their addresses (postal and physical), contacts (telephone and e-mail) and a link to Utility Companies in Britain websites.

Utility Companies in UK : Energy Suppliers


Npower is part of the German RWE Group. Originally formed as National Power, one of the principal power generators from the 1990’s privatisation, the company acquired Midlands Electricity, Calortex and Independent Energy before being rebranded as Npower in 2000. It then demerged to become International Power and Innogy. Innogy proceeded to buy the supply businesses of Northern Electric and Yorkshire Electricity, taking its customer base to 7m. In 2002, it was acquired by RWE and rebranded as RWE Npower. The renewables side of the business has been established in a separate company, RWE Innogy.

E.ON Energy

E.ON Energy is the UK’s third largest natural gas supplier. It is a subsidiary of German E.ON Group that is one of the world’s largest investor-owned power and gas companies. The UK division was established in 2002 when E.ON bought Powergen UK PLC. Its UK operations are based in Coventry and employ over 16,000.
The business is vertically integrated with interests in electricity generation, supply and distribution, as well as gas distribution and home energy support services. It has a 50% share of the London Array, a major wind-power scheme to be built in the Thames Estuary, as part of a 1,500MW programme of renewable energy capacity under development in the UK.

Électricité de France (EDF)

Électricité de France (EDF) is the world’s largest utility company and UK’s largest electricity supplier. The UK group was formed in 2002 from the acquisition of SEEBoard, London Electricity Board, South West Electricity Board and 3 power stations. In 2009, EDF purchased British Energy Group from the UK government, adding 7 nuclear power stations to its portfolio. It also has investments in wind energy and is developing Teesside Offshore Wind at Redcar. The group employs over 20,000 and has 5.7m customer accounts in the UK.

Scottish and Southern Energy (SSE)

Scottish and Southern Energy (SSE) is a FTSE-100 energy group based in Perth, Scotland. It is the UK’s third largest electricity supplier. It is also the country’s largest electricity generator from renewables, with over 2GW capacity, to which it is adding 500MWp through developing the world’s largest offshore wind farm in Suffolk.
The group was formed in 1998 from the merger of Scottish Hydro and Southern Electric. It incorporates the brands SWALEC, Southern Electric, Scottish Hydro and Atlantic Electric & Gas. SSE also owns Scottish Hydro Power Distribution, Scottish Hydro Electric Transmission and 50% of Scotia Gas Networks. Annual revenues exceed £25billion and the group employs over 20,000. All its call centres are in the UK.


GDF SUEZ Energy UK is firmly established as a specialist energy supplier to industry and commerce across the UK and has been operating in this market since 1999. Offers an innovative range of energy supply products to meet the requirements of all types of business, from small industrial and commercial companies, to energy-intensive industrial plants.

Scottish Power

Scottish Power was purchased in 2006 by the Spanish utility Iberdrola, to make the group Europe’s third largest energy company. Scottish Power is vertically integrated and is both a generator and supplier. Its headquarters are in Glasgow and it employs about 9,000 in the UK. The company was originally formed from the privatisation of South of Scotland Electricity Board (when the Scottish Hydro Electric Board was sold to Scottish and Southern Energy Group). It then acquired MANWEB, covering Manchester and North Wales and rebranded as Scottish Power. The group is the distribution network operator for central and southern Scotland, and for Merseyside and North Wales. It is also transmission owner for the south of Scotland. It also owns PPM Energy in the US.

British Gas

The group’s current structure was established in 1997 when British Gas plc was demerged to form Centrica plc and BG plc. Centrica took over gas sales and gas trading, services and retail businesses, together with North Sea and Morecombe Bay gas production operations. It is allowed to use the British Gas brand in the UK, but not overseas. The company employs 15,000 and has over 16 million UK customers. BG plc operates as an entirely separate business and uses the British Gas trading style overseas.

Total Gas and Power

Total Gas and Power is the country’s third largest energy supplier. It is part of the French Total Group. It serves small to medium sized businesses, as well as large corporate customers, giving it a more significant share of these non-domestic sectors. It offers a wide range of products for larger energy users, allowing access to a range of price and product structures.

DONG Energy

DONG Energy is one of the major energy groups in Northern Europe. They procure, produce, distribute and trade in energy and related products and have been operating in the UK since 2001, when they were awarded three oil and gas exploration licences. They are also a major contributor to the wind power industry with offshore wind farms in the UK and have more than 20 years of experience in energy generation.

Corona Energy
Corona Energy was acquired by the Australian Macquarie Group in 2006 and has developed a range of risk management products. It also provides environmental services to provide customers with a complete gas supply and management solution. This includes automated meter readings to provide accurate billings and data for energy management and client strategic review.

Gazprom Energy

Gazprom Energy is a 100% wholly owned subsidiary of Gazprom Marketing & Trading Ltd, the trading arm of Gazprom – one of the World’s largest energy companies. Gazprom Energy supplies gas and power to commercial users in the UK and is also in the commercial gas market in Ireland, France and Holland. The company recently entered the German power market after acquiring a domestic power supplier in late 2011.

Connecting utilities in the UK

Connecting utilities in the UK is usually very straightforward and in many cases can be done online. There is a good chance your new home will already have gas, electricity and water connected. In a typical situation, your only responsibility is to transfer those services into your name and check the meter readings.

You are typically free to choose any UK utility provider you would like to use for gas and electricity, however, UK water utilities are generally limited to the one provider operating in your area.

Utility Companies in UK
Utility Companies in UK

Water Utilities in UK

UK water bills comprise two charges: one charge for the water you consume, and another charge for the treatment of sewerage and waste water (grey water from showers, toilets and any other water that runs from your property into the public sewer system). You may be able to claim a reduction in your UK water bill if you can prove that surface water drainage from your property doesn’t use public sewerage, for example, if you have a soakaway. In other cases, some consumers find switching to a water meter can reduce prices; if not, there is generally a 12-month grace period in which the consumer can switch back to a non-metered rate. If you have lost water to leakage, you may also be able to claim a refund on your UK water bill provided you fix the problem, although this is usually only offered once.

In 2017, Water UK announced a 2 percent rise in fees, pushing the average water bill in the UK to GBP 395 per year (up GBP 6 from the average water bill of GBP 389 in 2016), including sewerage services. For water only, the average water bill ranges from GBP 150–200 annually depending on the UK water company. Despite the increase, it is part of a larger goal to reduce water prices by 5 percent between 2015–2020, partly by giving water companies funding to offer better services and less water wastage. The average cost of one litre of water in the UK is 0.1 pence, averaging about GBP 1 per day for a household.

Utility Companies in UK: Water companies

  1. Affinity Water
  2. Albion Water
  3. Anglian Water
  4. Bournemouth Water
  5. Bristol Water
  6. Cambridge Water
  7. Dee Valley Water
  8. Dŵr Cymru – Welsh Water
  9. Essex & Suffolk Water
  10. Northern Ireland Water
  11. Northumbrian Water
  12. Portsmouth Water
  13. Scottish Water
  14. South East Water
  15. South Staffs Water
  16. South West Water
  17. Southern Water
  18. Sutton and East Surrey Water
  19. Thames Water
  20. United Utilities
  21. Wessex Water
  22. Yorkshire Water

Paying utility bills in the UK

The utility company you choose give you a variety of options to pay your utility bills. Gas and electricity companies typically send a representative to read your meter every three months. You should expect to receive a bill shortly afterwards.

If the company is unable to take a meter reading from your home, your bill will be calculated on the average monthly use in previous months. Energy companies usually over-estimate the usage so it is a good idea to take the reading yourself and call them so your utility bills are more accurate.

To pay utility bills in the UK, you can use a credit or debit card and pay over the phone or online, make a bank transfer, or settle the bill at the post office using the payment slip supplied in the envelope with your UK utility bill.

If you feel a lump-sum UK utility bill every three months does not help your monthly budget, the convenient option is to set up a monthly direct debit. This allows you to pay a set amount each month which is adjusted when your meter is read.