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Affect Energy

Affect are based in Shoreham-By-Sea and supply both domestic and business customers. They are primarily focused on providing what they describe as “cheap” electricity and gas and refer to the concept they offer as “Simply Brilliant Energy”.


Avro entered the supply market in late 2015 and supply domestic customers only. They aim to provide low priced energy and simplicity. Based in Warwickshire Avro are looking to reduce consumer “frustration” and “rectify these problems in favour of consumers”.

Brighter World Together

Brighter keep things simple by offering only two tariffs, one fixed the other variable. Through projects in Africa, Brighter World Together are attempting to fix what they describe as two problems, firstly overcharging and secondly limited access to electricity in Africa. Via concept of “buy to give”, you get to support these projects. Like a number of other smaller suppliers Brighter World Together are supported in the market by Robin Hood Energy.

Bristol Energy

Bristol Energy are one of a number of emerging local councils that are moving into energy supply. Unsurprisingly Bristol City Council are the council in question and they supply both domestic and business customers. Bristol offer a range of tariffs and state their core mission to is linked to the “right to a warm home”.

British Gas

As one of the UK’s largest energy suppliers British Gas offer a range of products across both domestic and business markets. These products extend into many linked energy areas and they are looking to become a provider of “services” rather than purely an energy supplier.


Was founded by two individuals who had previously worked in the energy industry and identified four key problems at the big energy suppliers and set out to fix them within their own energy supply business. Based in London, Bulb are looking to cultivate a community concept for their business, which engages and supports customers.

Co-op Energy

Co-op Energy is run from The Midcounties Co-operative and they offer energy supply for domestic customers across the UK. From their launch in 2010 they have grown to become one of the largest non “big-6” suppliers. As with the other areas of the Co-op, any profits are redistributed to its members. In early 2017 they also took on the customers of GB Energy and are now using that brand to bring different tariffs to the market.


Part of the giant German utility, the UK supply business is one of the market defined “big 6”. e-on was once known to its UK customers as Powergen, but took on the e-on name in 2007. As you’d expect with a supplier of their size, they offer a range of linked energy propositions.


Based in Oxfordshire, EBico are focused on helping those customers affected by Fuel Poverty. Supplying over 60,000 UK households they use financial surpluses to support local projects linked to alleviating Fuel Poverty.

Economy Energy

Economy Energy are all about low-cost electricity and gas. They are primarily interested in providing Pay As You Go (PAYG) and Smart related tariffs.


As one of the first energy suppliers to emerge around the sustainability agenda, Ecotricity arrived in the market in 1996 and were offering “green” energy from that point. They’ve grown significantly since that time and have through their “bills to mills” concept have invested in wind generation.


Looking after around five million residential customers in the UK, EdF are firmly in the “Big 6” category. The UK business today also includes what use to be known as British Energy, meaning that around 70% of EdF’s electricity in the UK is generated from nuclear power plants.


Up until 2016 you would likely have known Engie as GDF Suez /Gaz de France, however in all likelihood you might not have heard of them at all as they’ve been primarily involved in supplying business customers. However, that changed in 2017 when Engie launched their first residential focused tariffs.


As the name might indicate, Eversmart are focused on providing their customers with a Smart meter and associated services to manage and understand consumption. Based in Manchester they launched their offerings following their founding in 2014.

Extra Energy

Extra started life as an energy supplier in Germany and entered the UK supply market in 2014. They state they are all about being “efficient and lean” and look to pass those savings onto their customers. Having initially been focused on domestic supply, they now also supply business customers.

First Utility

Based in Warwick and started in 2008, First Utility was one of the first new entrants to really challenge the “Big 6”. They now serve around one million residential customers and are the 7th biggest supplier in the UK.

Fischer Energy

Launched early in 2017, Fischer provide one tariff for all its customers with a goal of bringing “positive change for customers who value fairness, honesty and loyalty”. Fischer are owned by Fischer Future Heat who are a manufacturer of electric heaters.

Flow Energy

Flow are part of the Flow Group a publicly listed company and are based in Ipswich. They now have over 250,000 customer accounts and continue to grow rapidly. They typically offer few tariffs, generally with one fixed for duration and the other a variable version.

Future Energy

Future are a Newcastle based company with a primary focus on supplying customers in the North East. They pride themselves on “offering low prices and excellent customer service”. They supply both electricity and gas to residential customers only at the moment.

GB Energy

Up until late 2016 GB Energy was one of the fastest growing new entrants in the UK market. Since early 2017 GB has become part of the Co-op and recently been re-launched as a stand-alone brand within the Co-op business. They have around 250,000 customer accounts.

Go Effortless Energy

Founded in 2013 Go Effortless is the idea of a couple in Staffordshire who found themselves frustrated with a confusing market and decided to try something new. With that ethos in mind they only offer one tariff for a fixed 12-month period.

Good Energy

Founded in 1999 Good Energy prides itself on being a 100% renewable energy supplier. They work with independent renewable generators and are now investing in their own renewable assets. Good also supply businesses and can support PPA’s and the Feed-in-Tariff.

Green Network Energy

Founded in 2003 in Italy, Green Network Energy are new to the UK having only launched in 2016. Typically they offer four contract tariffs alongside a variable version. From their beginnings in 2003 Green Network have a track record of green investments primarily in Italy.

Green Star Energy

Part of the American energy retailer the Just Energy Group, Green Star are based in Milton Keynes and are part of the UK division which also includes Hudson Energy Supply, their business counterpart. Started in 2013 Green Star offer a range of tariffs including a 100% renewable green tariff.


Located in Southampton, Igloo are one of the new entrant retailers focused on leveraging the benefits smart metering can bring to customers. Igloo also pay interest on any credit balance on your account and are looking to use data insights to help customers reduce their consumption.


Launched in 2012, iSupply are based in Bournemouth they state that they are focused on “simplicity, fair prices and great customer service”. Their tariffs are simple and involve either a fix for defined period of time or a variable tariff without a termination fee.

M&S Energy

The high street retailer entered the energy market in 2008 via a white label offering in partnership with SSE. M&S Energy look leverage their brand reputation and ability to align energy bills to rewards used in store.

Nabuh Energy

Based in Sheffield, Nabuh was founded in late 2015. Focused on the domestic market, they typically offer two tariffs, both of which are online exclusives.


Formed by the coming together of Midlands Electricity Board, Northern Electric and Yorkshire Electricity, npower are one of the “big 6”. Now owned by the giant German utility Innogy, they supply customers in all segments of the UK market.


Launched in 2011, Octopus is attempting to “throw away the old models of the big 6”. They have invested heavily in solar generation and are now one of the largest players in this market. Via this model they are able to offer 100% green tariff and are continuing to innovate via apps and tracker type products.

One Select

Launched in 2017 One Select are the UK venture of Dutch energy retailer EnergieFlex. Currently their offering is limited to one tariff, but more are due to be launched shortly. They outline their belief in four things: “Fairness, Simplicity, Control and Innovation”.

Ovo Energy

Based in Bristol, Ovo joined the energy supply market in 2008. They were formed with the vision of providing something that market wasn’t offering at that point: “fair pricing, great service and clear, simple information. Their tariff line-up is generally simple and they look to pay interest on credit balances.

PFP Energy

Previously known as People for Places, PFP Energy launched into the market in 2015. Owned by a large property and investment group, PFP look to keep dealing with them simple and offer a limited number of tariffs in this regard. They also now offer quotes for business customers.

Robin Hood Energy

Owned and operated by Nottingham City Council, Robin Hood Energy was one of the first energy suppliers to be started by a local council. Initially set-up to serve the domestic and business energy customers of Nottingham, Robin Hood is now playing a much wider role in the energy supply market. To help others enter the market Robin Hood offer a “white label” service. To date the following suppliers are utilising there offering: White Rose Energy and Brighter World Together.

Sainsbury’s Energy

Launched in partnership with British Gas, Sainsbury’s Energy offer domestic electricity and gas across the UK. Sainsbury’s offer a number of fixed tariffs and one standard variable offering. Additionally any holder of a Nectar rewards card can collect reward points for the scheme.

Scottish Power

Since 2006 Scottish Power has been part of the Spanish energy giant Iberdrola. Unlike many other energy suppliers, Scottish Power remain both a provider of energy to customers and the owner of the local network from its original Regional Electricity Company days. Iberdrola are a world leader in renewable generation and through their parent, Scottish Power have certainly pivoted towards sustainable generation.

So Energy

Based in London, So Energy launched into the market in 2014. By utilising modern technology and efficient operating practices, So Energy look to pass savings they make on to their customers via low tariffs. Additionally they operate something called the “Low Price Commitment”.


Surprisingly Solarplicity aren’t just about providing energy generated via solar panels! Their ethos has now evolved into a broader commitment to provide its customers with 100% renewable energy from a variety of sources. To keep things simple they offer two tariffs, one a fix for the duration of your agreement and the second a variable price that moves inline with the market price.


Formed in 2007, Spark work predominately with letting agents in the rental market. To meet their objectives of keeping things “simple” all customers are offered a smart meter from the outset of joining Spark.


As one of the “big 6” SSE have been one of the boldest in terms of moving into additional home services: you can now get your phone and broadband needs fulfilled by them. Following acquisitions since the time of competitive market opening SSE now also own SSE Atlantic, SSE Scottish Hydro, SSE Southern Electric and SSE Swalec. All of which offer a variety of tariffs, but you will find a consistency of brand across all the offerings.

Together Energy

Started in late 2016, Together Energy base themselves in Clydebank, Scotland. Typically their tariff offering is small with a focus on one fixed tariff and one variable version.


Located in Birmingham, Tonik supply all of their electricity from renewable sources. As a new entrant they are looking to differentiate via the application of technology. They put the emphasis on using this technology to help customers to gain control and save money.


Started in 2016 and based in Brighton, Toto are clearly still relatively new to the market. However, they offer four tariffs, with two being fixed and two variable. Additionally they are focusing on smart meters and offer insights via this data to help customers understand their energy consumption.


Launched in 2003, Utilita have become one of the UK’s biggest providers of pay-as-you-go energy propositions. Every customer that joins Utilita receives a smart meter and can use an associated app for top-ups.

Utility Warehouse

Operated by Telecom Plus and once partly owned by npower, Utility Warehouse have grown rapidly since it began in 2002. Their model differs from the majority of other suppliers as they offer discounts when customers take additional products and use a “club” concept to keep introducing new members.

White Rose Energy

Based in Leeds and supported by Robin Hood Energy, White Rose Energy is Leeds City Council move into the energy supply market. Since the autumn of 2016, White Rose Energy have offered a number of tariffs and are operating as a “not for profit” entity.

Zebra Power

Launched in 2017 and based in Manchester, Zebra Power are one the most recent market entrants. They are keeping their tariff range focused and currently only propose three, two fixed and one variable.