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Best Business Energy Suppliers | January 2025
With over 50 licensed business energy suppliers in Britain, choosing the right one can feel overwhelming. Each supplier offers something unique, making the decision tough.
Our energy experts have created this guide to help you find the best business energy supplier for your business. We begin with the top-rated suppliers on Trustpilot:
| No | Supplier | Average review | Reviews | Customer |
|---|---|---|---|---|
| 1 | United Gas and Power | 4.9 | 914 | Business |
| 2 | Octopus Energy | 4.8 | 464,267 | Home and Business |
| 3 | Good Energy | 4.8 | 12,533 | Home and Business |
| 4 | Total Energies | 4.7 | 6,505 | Business |
| 5 | EDF | 4.7 | 113,308 | Home and Business |
| 6 | Shell Business Energy | 4.7 | 145 | Business |
| 7 | E.ON next | 4.5 | 137,655 | Home and Business |
| 8 | Utility Warehouse | 4.4 | 58,252 | Home and Business |
| 9 | Scottish Power | 4.3 | 98,172 | Home and Business |
| 10 | Utilita | 4.3 | 100,299 | Home and Business |
Source: AquaSwitch’s Business Energy Supplier Rankings
Top business energy suppliers
Our experts present the top six British business energy suppliers ranked on estimated market share.
Our list of top suppliers includes a mix of industry giants that have been prominent since the deregulation of the 1990s, alongside innovative new suppliers that have since captured a significant share of the market.
British Gas
Founded in 1812 as The Gas Light and Coke Company, British Gas is the oldest entity in the UK’s energy industry. It played a pivotal role in developing Britain’s gas market. Today British Gas is a major domestic and business energy supplier.
EDF
EDF, originally known as Électricité de France, entered the British energy market in 2002. EDF owns and operates all nuclear power stations in the UK and is constructing the Hinkley Point and Sizewell C power stations.
E.ON
E.ON has invested in various large-scale renewable projects and has recently agreed to build the UK’s largest roof-mounted solar project at the Port of Liverpool. E.ON business energy operates under the E.ON Next brand for SMEs and npower for large business energy customers.
SSE
Scottish and Southern Energy (SSE) was formed in 1998 through the merger of Scottish Hydro Electric and Southern Electric. SSE is a leading generator of renewable electricity and a distribution network operator in Scotland.
Scottish Power
Scottish Power Business Energy owns over forty wind farms in Britain, with a combined renewable power generation capacity of over 3 GW. Scottish Power also operates Southern Scotland’s electricity grid.
Octopus
Founded in 2015, Octopus Business Energy quickly established itself as an innovator in the British energy market. Octopus has pioneered smart energy tariffs, including a 21-hour off-peak electricity tariff offered to small business energy customers.
Cheapest business energy suppliers
Finding the cheapest business electricity supplier isn’t straightforward. Suppliers update their prices daily, and rates vary depending on your location and the size of your business.
That’s where our business energy comparison service comes in. It’s designed to make the process simple. Here’s how it works in three easy steps:
Unit rates per kWh
Our experts collect the daily regional business electricity prices per kWh and business gas rates per kWh offered by each supplier to prepare tailored quotes for each of our customers.
Daily standing charges
Nearly all business energy tariffs include standing charges, priced in pence per day, which depend on a connection’s maximum import capacity. We also factor these charges into our quotes.
Expected annual cost
Our experts analyse your annual business energy consumption to calculate the expected annual cost of each quote, enabling a fair comparison across our panel of trusted business energy suppliers.
Best small business energy suppliers
Our business energy experts have highlighted three business energy suppliers, each focusing on delivering excellent service for small businesses. These suppliers offer simple tariffs designed to help small businesses reduce the carbon impact of their energy consumption.
Ecotricity
Ecotricity is a business energy supplier specialising in competitive and straightforward 100% green energy tariffs for SMEs. Ecotricity business energy is pioneering biogas generation through its green gas mill.
Engie
Engie business energy is committed to helping small and medium-sized businesses transition to a low-carbon workspace by providing green tariffs and supporting businesses in using power and gas more efficiently.
Good Energy
Good Energy purchases electricity from a community of 2,000 independent generators using PPAs or the Smart Export Guarantee scheme to provide 100% renewable electricity to its small business energy customers.
Best large business energy suppliers
The best large business energy suppliers focus on helping large organisations execute their energy procurement strategies. Our experts highlight the following business energy suppliers, each dedicated to providing excellent service to large businesses.
Drax
Drax Business Energy is a leading UK energy supplier specialising in industrial electricity users. The Drax Group operates Drax Power Station in Yorkshire, the world’s largest biomass power station.
TotalEnergies
TotalEnergies is one of the largest energy suppliers to the industrial and public sectors, with over 200,000 sites in its portfolio. TotalEnergies helps its customers arrange PPAs to generate income from their renewable sources.
United Gas & Power
United Gas & Power is one of the top-ranked business energy suppliers. They provide a personal account manager for large business energy customers, capable of creating a personalised utility delivery plan.
The key factors to consider when choosing a business energy supplier
Many businesses select a new business energy supplier primarily based on price. However, it is crucial to also consider the following additional factors:
Additional supplier benefits
Some suppliers may offer perks such as business energy audits, efficiency advice, or smart energy meters at no extra cost. These features can help you reduce unnecessary business energy consumption to save money.
Check supplier reputation
If you’re thinking of switching to a cheap new business energy supplier but are unsure if they are good, we recommend searching Trustpilot to see if current customers are leaving positive reviews or raising complaints.
Review supplier energy types
The regulator Ofgem separately licenses commercial gas and business electricity suppliers. Ensure that your chosen supplier can provide services for both commercial electricity and business gas connections.
Assess suppliers green credentials
The best business energy suppliers directly invest in renewable energy infrastructure, such as UK wind farms and hydroelectric dams.
We recommend visiting the website of your prospective supplier to review their green credentials.
Do they offer energy exports?
If investing in solar panels at your commercial property is something you are considering check that your business energy supplier is signed up for the Smart Export Guarantee scheme.
Check the latest list on Ofgem’s website.
Do they offer analytics tools?
The best business energy suppliers offer smart meters or half-hourly meters, which measure electricity consumption and continually provide data insights.
These suppliers provide access to business energy monitoring tools that can help you optimise energy usage.
Commercial energy suppliers
Commercial energy suppliers are pivotal in providing businesses of all sizes with the electricity and gas they need to operate.
Unlike domestic suppliers, commercial suppliers offer energy solutions tailored to the unique demands of businesses, which can include higher consumption rates and the need for more complex metering and billing systems.
In this section, we’ll cover those key questions regarding the role of a business energy supplier.
What is a business energy supplier?
Business energy suppliers are licensed by Ofgem, the energy regulator, to purchase and distribute electricity and gas to commercial properties.
Business energy suppliers enter into business energy contracts with customers to supply individual commercial gas or business electricity connections. Supply contracts offered by business energy suppliers are linked to individual MPANs (for electricity) and MPRNs (for gas).
During a contract, a business energy supplier uses meter readings to measure energy consumption and regularly sends business electricity bills and commercial gas bills.
Visit the Ofgem website for the current list of licensed business energy suppliers.
Should I use a broker to find a new business energy supplier?
Many businesses find it smart to use a broker to find a new business energy supplier. Brokers save time by comparing quotes from multiple suppliers and often secure exclusive deals through their industry connections.
Business energy brokers offer expert advice tailored to your business’s needs, helping you choose the best contract terms and ensuring both cost-efficiency and reliability.
A good broker will also provide ongoing support, helping you manage business energy contracts and improve business energy efficiency.
What happens if my business energy supplier goes out of business?
Ofgem, the energy regulator in the UK, protects customers in the case of a business energy supplier going bust, ensuring that electricity or gas supplies are not interrupted.
The process of an energy supplier going bust will involve either:
- Ofgem appoints a new supplier who will take over from your current supplier.
- Ofgem puts the supplier into administration to ensure they can continue to operate (this was the case for failed supplier Bulb).
Our business energy supplier guides
Our in-house business energy experts have written the following three key guides to help explain the roles and functions of business energy suppliers.
Switching business energy suppliers
Switching business energy suppliers is sometimes necessary to secure the best prices. Our experts provide a step-by-step guide to changing your business energy supplier.
Business energy supplier contracts
Business energy contracts are formal legal documents between a business energy supplier and an individual customer. We explain the key terms of these contracts.
Green business energy suppliers
Green business energy suppliers provide guaranteed carbon-neutral electricity and gas supplies. Learn more about how business energy suppliers deliver green energy tariffs.