Business energy suppliers

Ofgem counts 65 active suppliers in the business gas and electricity retail markets (Ofgem, State of the Market: Energy Retail Highlights January 2026, published 27 January 2026, on Q2 2025 data). Households pick from 22. This page lists who currently sells business energy in Great Britain, grouped and dated.

Ofgem counts the two fuels together, so no separate business gas or business electricity total exists. We do not rank these suppliers, because nobody can. Names checked in August 2026 against each supplier's own site.

Who supplies business energy in the UK

The list moves. As at 31 March 2026 Ofgem was reviewing entry applications from five companies for the non-domestic market. Ten business-only licences were granted across 2022-26 (Ofgem, Supplier Financial Resilience Report 2026, published 9 June 2026).

The big names

• British Gas Business. Centrica's business arm, selling both fuels to sites of every size.
• EDF. Homes and businesses, and it took on Opus Energy's small business book.
• E.ON Next Business. The E.ON group's small and medium business supply arm.
• Octopus Energy for Business. The Octopus group's business supply arm.
• ScottishPower. Business contracts sold direct and through brokers, alongside its household book.
• SSE Energy Solutions. SSE's business supply arm.
• Utilita. Domestic-led, and supplies smaller business sites.

Challengers

• Yü Energy. Business only, gas and electricity, aimed at small and medium sites.
• Valda Energy. Business only, both fuels, and it publishes its deemed rates.
• Pozitive Energy. Business only, both fuels.
• Conrad Energy. Licensed for gas and electricity, business only.
• Brook Green Supply. Business only, both fuels.
• United Gas & Power. Both fuels, business only.
• Good Energy. Renewable-led, homes and businesses.
• Ecotricity. Renewable-led, and it supplies homes as well as businesses.

Business-only specialists

• npower Business Solutions. Aimed at large industrial and commercial sites.
• TotalEnergies Gas & Power. Formerly Total Gas & Power.
• Drax Energy Solutions. Larger sites, having sold its small business book to EDF.
• SmartestEnergy Business. Small sites through to large.
• Corona Energy. Gas-led, with published electricity rates.
• Crown Gas & Power. Gas-led.
• SEFE Energy. Gas-led. Renamed from Gazprom Energy.

Fuel-specific lists, including the names that no longer trade, sit on business gas suppliers and business electricity suppliers.

How to choose one

Start with the price for your own meters, gathered on one day, because the spread between suppliers is wider than anything else on this page. Then read the contract. Ofgem names five kinds you can end up on: deemed, out-of-contract, fixed, variable and rollover (Ofgem, Set up a business energy contract, read August 2026). Two of those five are prices you never agreed to. Service is harder to judge, because no regulator-backed rating exists for business supply. If your current deal beats today's market, stay put and diarise the end date. The walkthrough is on compare business energy.

The biggest supplier is rarely the cheapest

Ofgem puts the default rates plainly. Prices on those contracts "are on average 80 per cent more than rates charged in a negotiated contract", and "around 10% of micro-businesses are on deemed contracts" (Ofgem, Understand energy contracts for businesses, published 16 June 2021, checked August 2026).

What you land on turns on whose name is on the bill. Drax charges 39.51p per kWh on deemed electricity, effective 1 August 2026, and prices its out-of-contract rate separately at 36.53p (Drax, deemed and out-of-contract rates, read 10 August 2026). Valda Energy charges 45p per kWh on deemed electricity, effective 7 August 2026 (Valda Energy, deemed rates, read 10 August 2026). That is 5.49p between two suppliers for the same nothing, about 14%. Our arithmetic, method on our pricing methodology.

Size is no guarantee either. Two suppliers failed in 2025-26 and 18,000 business customers were moved to a new one, with supply carrying on throughout. No supplier failed the year before (Ofgem, Supplier Financial Resilience Report 2026, published 9 June 2026).

The way out of a default rate is open. Ofgem says your supplier cannot "prevent you from switching to another supplier, for any reason or at any time", and cannot require notice or charge a termination fee (same Ofgem guidance). Detail in our deemed rates guide.

Whichever name you pick, our commission is 1.5p per kWh, gas and electricity, every contract length, printed on the quote before you sign.

One supplier for both fuels?

You can buy both from one supplier, and most of the names above will quote both. Ofgem's wording is that "you will usually have a contract for each type of energy you use" (Ofgem, Set up a business energy contract, read August 2026). One bill still means two contracts and two end dates, with no domestic-style bundled discount. What to watch when those dates drift apart is on buying both fuels together.