Impartial Energy Comparison

Energy Supplier Directory

See how your energy supplier measures up with Simply Switch’s market leading energy comparison engine. Just five minutes of your time could save you hundreds of pounds per year!

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Each energy supplier has their own pros and cons and will appeal to different customers. Whether you value customer service, care for the environment, or simply want the lowest price possible, have a look through our list and you’ll find a provider you like.

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E-on, formerly Powergen, is a major domestic and commercial energy supplier. They are one of the “Big Five” gas and electricity providers in the UK.  They currently provide energy to around 9 million people in the United Kingdom.  They offer customers great help when it comes to improving the efficiency of their homes.

British Gas is one of the “Big Five” energy providers in the UK.  They were previously a nationalised public utility, but were privatised in 1986.  They currently provide gas and electricity to 6 million people across the UK.  There business currently covers over half the domestic gas market in this country.

ScottishPower has been established for over 50 years and now supplies energy to more than 5 million domestic customers across the UK. They are dedicated to investing in green projects and have 30 wind farms, hydro-electric power stations across the UK as well their own Green Energy fund.

EDF energy are one of the “Big Five” energy suppliers in the United Kingdom. EDF produce low-carbon energy and create 7% of the UK’s energy supply. They have 5 million customers in the UK and took over British Energy in 2009. Just under 70% of their energy is produced from nuclear power.

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SSE is one of the biggest gas and electricity suppliers in the UK. Their aims include increased customer satisfaction and they have a good track record in this area. They are also committed to increasing the amount of renewable energy in the UK.

The Co-operative energy started off supplying households in the Midlands, since 2010 they have expanded across the UK. They now have 500,000 customers nationwide and offer both gas and electricity. They do not have any shareholders, but instead allow their customers a share of their profits. They have a good record on customer service and affordable prices.

So Energy is a small provider who believe in providing their customers with a service that is based on simplicity, ease and good value. They only offer a single, fixed price tariff, that is competitively priced and available to all customers, old and new.

Sainsbury’s energy is a partnership between Sainsbury’s and npower. They strive towards providing renewable energy and high levels of customer service. Their call centres have continuously won awards for their efficiency and excellent record of customer satisfaction.

OVO energy company was created in 2009. After four years in the industry they have 70,000 customers and counting. The company is committed to providing affordable, green energy across the UK. They believe in simplicity and as a result only offer two types of tariff at present.

Utility Warehouse is a provider specialising in multi-utility packages – they offer gas & electricity, broadband, and mobile services, and give discounts to customers who take out multiple services at once.

Octopus Energy is a relatively young supplier who, as the UK’s largest investor in solar farms are intent on supplying their customers with 100% renewable electricity. They are also committed to clear pricing and simple tariffs that don’t involve lengthy contracts and unnecessary bureaucracy.

Ecotricity are an energy supplier that is devoted to producing green energy from renewable sources. They run a “bills into mills” initiative that is committed to reinvesting customer bills into creating more renewable energy sources. They have topped the Which? energy supplier survey for two years running.

Utilita are the leading energy supplier for prepayment meters in the UK. They were created in 2003 and are dedicated to supplying its customers with fairly priced gas and electricity. They have tried to achieve this aim by providing their customers with smart meters up and down the country.

Good energy is an independent energy company with strong environmental aims when it comes to renewable power sources. They have invested heavily in wind farms and solar panels across the country. They have pledged to donate £40 to the National Trust for every new customer that changes to them.

SSE Southern Electric are a subsidiary of SSE and provide people with energy in the South of the country. They pride themselves on their customer service and have in turn received some very good levels of customer satisfaction. They are the largest producer of green energy in the UK.

SSE SWALEC are a subsidiary of SSE and provide people with energy in Wales and Merseyside. Like all members of the SSE group they have an exemplary record when it comes to both customer service and customer satisfaction. They currently employ over 20,000 people.

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GEUK (formerly Green Energy UK) is a supplier focused on producing energy in environmentally friendly ways. They have a number of hydro power stations and solar panels across the UK that help them to reach their aims. The currently only offer electricity and have not declared an interest in entering the gas market.

SSE Scottish Hydro was initially a standalone company in its own right but later merged with Southern Electric to create the SSE collective. They provide energy to people all across Scotland and have an excellent record with customer satisfaction and customer service.

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Square1 is a brand new, independent, UK-based energy supplier. They offer gas, electricity, and dual fuel tariffs, on both variable and fixed rates.

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So Energy is a small supplier that was founded in 2015 and is signed up to the UK’s Vulnerability Commitment, pledging to go beyond statutory obligations to protect at risk customers.

Why should I switch energy supplier?

There are many reasons for switching your energy supplier, the most obvious being the money you can potentially save. When any contract you have with an energy supplier comes to an end, you will continue to be supplied energy by that company, although you will be typically paying a lot more for it on out-of-contract rates. Domestic energy contracts usually last 12 months, so if you haven’t switched for over a year, now is the time.

Another reason why many people switch energy supplier, and one that is gaining popularity, is to be more sustainable. Energy suppliers will source energy from different sources, and while many use a mix of both renewable and finite sources (such as coal, oil etc), a growing number of energy companies only supply 100% green energy. If you want to make a difference to the environment by using sustainable energy, consider switching to a green energy supplier today.

What should I look out for when choosing an energy supplier?

When you compare energy suppliers, looking for the best gas and electricity deal for your home, consider the following criteria:

Cost

The most important factor for most energy customers when looking for a supplier is, of course, the price they pay for it. In fact, there’s quite a big difference between the cheapest and most expensive energy tariffs on the market, so switching to cheaper supplier could save you hundreds of pounds a year on your bills.

Sustainability

Another important factor to consider when comparing energy suppliers, especially for the more eco-conscious of us, is the sustainability of a supplier’s energy source. There are many so-called ‘green’ energy suppliers, which offer 100% renewable energy, including the highly-rated Octopus Energy. You can check the fuel mix for each supplier on their specific pages by clicking ‘compare supplier’ above.

Supplier Reputation

Company reputation is important when choosing to pay for any service or product, and this includes energy suppliers. However, some of the most well-known energy suppliers in the UK, including the ‘Big Five’, don’t actually have the best reputations. Most of the cheapest energy tariffs come from smaller, lesser-known suppliers, who are also more likely to be 100% green too.

Customer Ratings

To get a good idea of each energy supplier’s customer performance, you should look at their customer ratings. The level of customer service each supplier provides can vary considerably, with suppliers like Octopus Energy consistently ranking better among customers than the ‘Big Five’ (British Gas, EDF Energy, E.ON, Scottish Power and SSE).