E.ON Next (E.ON for business)

E.ON Next Energy Limited is the E.ON group company that supplies gas and electricity to small and medium-sized UK businesses. It is an active company and holds an Ofgem gas supply licence. It offers 1-, 2- and 3-year fixed tariffs, with 100% renewable electricity on selected fixed plans, and free smart meter installation. It ranked 3rd of 16 in the Citizens Advice non-domestic supplier table for April–June 2026 and holds a 4.5 TrustScore from 233,486 Trustpilot reviews.

Key facts

Legal name

E.ON NEXT ENERGY LIMITED

Company number

03782443

Company status

Active

Incorporated

4 June 1999

Registered office

Trinity House, 2 Burton Street, Nottingham, NG1 4BX

Website

https://www.eonnext.com/business

Phone

0808 501 5699

Email

hellobusiness@eonnext.com

Ofgem supply licence

Yes

Fuel mix

31.3% renewable electricity (1 April 2024 – 31 March 2025)

Trustpilot

4.5 out of 5, 233,486 reviews

Citizens Advice complaints

29.8 complaints per 10,000 customers (January to March 2026)

Citizens Advice rank

3

Tariffs

• Fixed Business Plan (fixed price)
• Flexible Business Plan (applies at end of a fixed plan if no new plan agreed)
• Variable Price Plan
• Deemed contract (no agreed contract)
• 100% renewable electricity on selected fixed tariffs

Contract lengths: 1 year; 2 years; 3 years

Smart meters: Yes

Prices

Not published.

Switching

SME supply for businesses using up to 100,000 kWh electricity and 293,000 kWh gas a year (or turnover under £2m and fewer than 10 full-time staff) is handled by E.ON Next. Quotes need a postcode online or a call. Larger users are sent to npower Business Solutions. Existing customers can renew online within 67 days of their contract end date, or by phone/email (0808 501 5109, sales-direct@eonnext.com) up to 1 year ahead. E.ON Next sends a renewal letter about 60 days before a fixed plan ends. If no new plan is agreed, the customer moves to a Flexible Business Plan or Variable Price Plan, or pays out-of-contract prices. The fixed-price guarantee against pass-through cost changes covers 1- and 2-year fixed plans only (T&Cs cl. 9.2.4, updated 20 Aug 2026). A customer can switch away once the notice period has expired and the fixed plan's end date has been reached.

Sources

1. find-and-update.company-information.service.gov.uk/company/03782443
2. find-and-update.company-information.service.gov.uk/company/03407430
3. uk.trustpilot.com/review/eonnext.com
4. citizensadvice.org.uk/about-us/information/how-does-your-non-domestic-supplier-stack-up
5. citizensadvice.org.uk/consumer/energy/energy-supply/get-a-better-energy-deal/compare-domestic-energy-suppliers-customer-service
6. ofgem.gov.uk/sites/default/files/2026-07/gas-licensees.pdf
7. eonnext.com/business/contact
8. eonnext.com/about/fuel-mix
9. eonnext.com/business
10. eonnext.com/business/electricity-and-gas
11. eonnext.com/business/smart
12. eonnext.com/policies/business-terms-and-conditions
13. eonnext.com/policies/deemed-contracts

Checked September 2026