Small Business Electricity Suppliers UK (2026): Compare Suppliers and Get a Quote

Last updated: Friday 23 October 2026 (Europe/London).
Next update: when the government publishes its next non-domestic energy price figures, due on 17 December 2026.
By: Switch Editorial Team, Switch Squid Ltd

There is no single cheapest small business electricity supplier. As of 23 October 2026, the latest government figures show very small businesses paid an average of 38.36p per kWh including the Climate Change Levy, and small businesses 28.59p, so a small shop using 15,000 kWh a year would pay about £5,754 before VAT at the very small average. Your own price depends on your usage, meter and contract end date. The best way to get a low rate is to compare quotes from several suppliers before your renewal window opens and avoid rolling onto out-of-contract or deemed rates. This SwitchSquid guide explains which kinds of supplier suit which businesses, the rights you have as a microbusiness, and what to have ready for a quote. We may be paid if you use our business energy form; it doesn’t change the price you pay.

Sources: Ofgem — get a business energy contract, Ofgem — switch your business energy supplier (both checked on 23 October 2026) and DESNZ — gas and electricity prices in the non-domestic sector (checked on 22 October 2026).

Who are the main small business electricity suppliers?

Small businesses in Great Britain can buy electricity from dozens of licensed suppliers. They fall into three broad groups, and each suits a different kind of business.

Not every supplier quotes for every business. Some only take sites above a certain usage, and some won’t quote for certain sectors. A comparison or quote service can save you from approaching suppliers one by one. Ofgem advises checking which suppliers a comparison covers and whether it receives commission.

Am I a microbusiness or a small business?

Your size decides which protections you get. Ofgem sets out the definitions:

Source: Ofgem, checked on 23 October 2026. Ofgem notes that some suppliers use either your size or your usage to decide which contract or protections apply. Many independent shops, salons, cafés, small offices and HMO landlords fall into the microbusiness group on usage alone.

Your rights as a microbusiness

If you are a microbusiness, Ofgem says your supplier must:

• give you clear information about your contract;

• limit termination notice periods to 30 days on evergreen contracts;

• acknowledge a request to end an evergreen contract within 5 working days;

• tell you about renewal prices before your contract ends.

Microbusinesses and small businesses can also get help from Citizens Advice, and from the Energy Ombudsman if a complaint with a supplier isn’t resolved.

The big difference from home energy: Ofgem says there is no cooling-off period once you agree a business energy contract, and business electricity has no price cap. Read every quote carefully before you accept it.

How much do small businesses pay for electricity?

The Department for Energy Security and Net Zero publishes the average price businesses paid each quarter, grouped by yearly usage. The figures include standing charges and network costs, but not VAT.

Source: DESNZ table 3.4.2, provisional figures published on 29 September 2026. Example costs are our own sums at the band average. For a fuller breakdown, see our business electricity prices per kWh guide.

The gap between the bands is the reason comparing matters. The smallest users paid nearly 14p per kWh more than the national average, so a quote that brings you closer to the small band average can make a real difference.

Compare business electricity suppliers online: what to have ready

Ofgem says you will need to give a new supplier your yearly consumption and meter details before signing. To get accurate quotes quickly, have these to hand:

1. Your MPAN (the supply number on your bill) for each meter.

2. Yearly usage in kWh for each meter, from your bills or online account.

3. Your contract end date and any notice period.

4. Your business details: company name, address and, for limited companies, the company number.

5. Meter type: standard, two-rate, smart or half-hourly.

6. Any VAT or levy reliefs you already claim, such as reduced VAT on domestic-use supplies.

When can I switch business electricity supplier?

It depends on your contract. Ofgem explains that most fixed-rate contracts don’t let you leave early unless you pay an exit fee, but they include a switching window a few months before the end date. You can usually tell your supplier you plan to leave during that window without paying a fee.

If your contract has already finished, you may be on a rolling, out-of-contract or deemed rate. Ofgem says these are usually more expensive than a fixed contract, and you can switch at any time. Our deemed business electricity rates guide explains how to get off them.

Your current supplier can object to a switch, for example if you owe it money. If that happens, contact it straight away to sort out the problem.

Fixed, variable, deemed or flexible: which contract?

• Fixed-rate: unit rate and standing charge are fixed for the term, so your price per kWh doesn’t change with the wholesale market. Most small businesses choose this.

• Variable-rate: the price can go up or down during the contract, often in line with wholesale prices.

• Deemed: applied automatically when you move into premises without a contract, or if your supplier goes out of business. Usually higher than negotiated rates.

• Out-of-contract: what some suppliers charge when a fixed term ends without a new deal. Usually expensive.

• Rollover or evergreen: renews automatically, usually for 12 months, possibly at a higher rate.

• Flexible: for large users that buy energy in blocks when the market suits them.

Using an energy broker

Brokers can find and negotiate a contract for you. Ofgem says most are paid commission by the supplier you choose, which is built into your price, and if your broker is paid by a supplier it must belong to an approved redress scheme. Check the Energy Ombudsman broker register or the Utilities Intermediaries Association member list before you sign. Ofgem also says it is important to know whether broker fees or commissions are included in your price.

Care homes and HMO landlords

Care homes run around the clock, often sit in the small band or above and may qualify for reduced VAT and Climate Change Levy relief on the residential share of their supply. Our nursing home energy suppliers guide and care home renewal checklist go into detail.

HMO landlords usually hold small communal supplies for hallways, fire alarms and shared kitchens, which puts them in the very small band. Our care home and HMO rates guide and communal electricity guide cover those supplies.

Who it suits

• Get quotes now: your contract ends within six months, or you are on out-of-contract or deemed rates.

• Use microbusiness protections: you have fewer than 10 staff or use up to 100,000 kWh a year.

• Consider a broker carefully: you have several sites or half-hourly meters; check its redress scheme and fees.

• Wait: you are mid-way through a fixed contract outside your switching window and would pay an exit fee.

Prefer to ask a few questions first? Squid AI, SwitchSquid’s AI assistant, can help you work out what you need for a business quote.

Important conditions

• Business energy contracts have no cooling-off period once agreed.

• There is no price cap on business electricity.

• Suppliers may run a credit check and ask for a security deposit.

• Average prices are government benchmarks for April to June 2026, not quotes.

• Broker commission may be included in the price you are quoted.

FAQ

Who is the cheapest small business electricity supplier?

There isn’t one supplier that is cheapest for everyone. Prices depend on your usage, meter type, location, credit score and contract length, so the cheapest supplier for a café may not be the cheapest for an office. Comparing several quotes before your renewal window is the only reliable way to find your best price.

How do I compare business electricity suppliers online?

Use a comparison or quote service and enter your MPAN, yearly kWh and contract end date. Compare the total yearly cost, including standing charges, rather than the unit rate alone, and check the contract length and exit terms before you accept.

Is there a price cap on business electricity?

No. The Ofgem price cap only covers household energy. Business prices are set by each supplier, which is why comparing quotes matters more than it does at home.

Do business energy contracts have a cooling-off period?

No. Ofgem says there is no cooling-off period once you agree a business energy contract. Read the terms, the end date and any exit fees carefully before you sign.

What counts as a microbusiness for energy?

Ofgem says a microbusiness has fewer than 10 employees and turnover or a balance sheet of no more than £2 million, or uses up to 100,000 kWh of electricity or 293,000 kWh of gas a year. Microbusinesses get extra protections, including 30-day notice limits on evergreen contracts.

How early should I start comparing?

Start four to six months before your contract ends. Your switching window usually opens a few months before the end date, and comparing early gives you time to line up a new deal before you roll onto out-of-contract rates.

Can my supplier stop me switching?

Your supplier can object if you owe it money or if you try to leave a fixed contract outside the switching window. Contact it as soon as you see an objection to find out what needs to be resolved.

Our verdict

The right small business electricity supplier is the one that gives you the lowest total yearly cost at your own usage, on contract terms you understand. Get your MPAN, yearly kWh and end date together, compare quotes from several suppliers before your renewal window, and never let a contract roll onto out-of-contract rates.