UK non-domestic supplier profile

Ruby Energy business energy supplier profile

Ruby Energy is a UK business energy supplier based in Fleetwood, Lancashire, focused on SME and commercial customers. The company presents itself as an independent supplier offering tailored business electricity and gas solutions, online account management, and direct contact support for business customers.

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Some entries on this profile rely on third-party sources and may have changed. Always confirm rates and contract terms with the supplier directly before relying on them.

Last updated 16 May 2026 · Talk to our team on 0161 521 3400

Snapshot, in plain English

Is Ruby Energy right for your business?

Established supplier

Licensed for 17 years with accounts currently filed. Sizing detail not yet independently researched, but the Companies House profile shows an established, active licensee suitable for single-site SME and mid-market multi-site contracts. Run standard counterparty due diligence before a 3-year commitment above £250k spend.

Risk band reasoning: Active, 17 years trading, accounts current.

17 yrs tradingRisk band: Low riskLast accounts filed 2024-09-29Next accounts due 2025-09-29Status: Active

Your business	Fit	Why
Single site SME	Fit	Often competitive on single-site fixed rates.
Multi-site SME	Fit	Most mid-market suppliers handle multi-site billing.
I&C £250k to £1m spend	Possible	Check counterparty viability over a 3-year term.
I&C above £1m spend	Not suited	Below the scale threshold for I&C tenders.

Verify on Companies House (free public record)

Quick facts

Trading name	Ruby Energy
Licence holders (2)	RUBY ELECTRICITY LTD.Electricity Co. 06882734 RUBY GAS LTD.Gas Co. 04408013
Supplies	Gas and Electricity
Website	rubyenergy.uk
Business phone	0344 5678 427
Email / contact	metering.gas@rubyenergy.uk; Hello@rubyenergy.uk Contact page
Rate status	Quote required

Company data

Live data on the licence-holding companies behind Ruby Energy, compiled by Purely Energy's independent research team and refreshed monthly.

Independent research on Ruby Energyhasn't been published yet. Our monthly refresh will publish it at the next run.

Ruby Energy out-of-contract and deemed rates

Not publicly published / quote required. Ruby’s standard terms say out-of-contract, default, and deemed rates are set at a rate the supplier may reasonably determine; no numeric p/kWh, standing charge, or dated rate table is published in the terms PDF. The terms also say deemed rates will be higher than standard industry rates.

Ruby Energy published rate page

If you are on deemed, default, rollover, variable, or Out-of-contract rates, ask for a written renewal quote and compare it against live market prices before agreeing a new contract.

Where your p/kWh actually goes

Indicative split for a UK I&C electricity bill in 2026, sourced from Cornwall Insight's non-commodity cost research. Your meter, region and contract type shift the exact mix, but the four components are always present.

Wholesale energy, 38%Gas or power bought on the wholesale market. The figure most coverage focuses on.
Non-commodity costs, 53%Network charges (DUoS, TNUoS), policy levies (RO, FiT, CfD, Capacity Market), CCL and balancing costs.
Supplier margin, 6%What the supplier earns. Always priced into the unit rate.
Broker margin, 3%What we earn for tendering and managing the contract. Shown separately on every Purely Energy quote.

Who Ruby Energy may suit

Best suited to UK SMEs and other non-domestic customers looking for a business electricity supplier with direct service, quote-led pricing, and account support. Less suitable for buyers who require published business out-of-contract/deemed tariffs for comparison or procurement without a quote.

Trading name and licence-holder notes

The customer-facing brand is Ruby Energy, while the licence holder/legal entity is Ruby Electricity Ltd. Ruby states that 'Ruby Energy' is the generic reference to the group of companies comprising Ruby Electricity Ltd and Ruby Gas Ltd.

Switching from Ruby Energy to a fixed business contract

UK businesses can switch gas and electricity supply away from Ruby Energy once their fixed contract ends, or after resolving any open objection or termination-window issue. The process is the same for every supplier on the non-domestic market, but a few checks done in the right order make the transfer materially faster.

1. Find your contract end date. It's on your last renewal letter or the most recent bill from Ruby Energy. Most non-domestic contracts have a 1 to 6 month termination window before that date, outside of which you may auto-roll onto a new fixed term.
2. Get your MPAN and MPRN ready. The 21-digit MPAN (electricity) and 6 to 10-digit MPRN (gas) uniquely identify each meter and are needed for any competing quote. Both appear on your bill.
3. Compare against the live market. Ruby Energy doesn't publish standard out-of-contract rates, so request a written renewal quote first and benchmark it against live market prices before agreeing anything. Purely Energy can run your meters against the wider UK panel and come back with the cheapest fixed offers.
4. Settle the final bill and clear any objections. Ruby Energy will issue a final bill within 6 weeks of supply transferring. If a balance is outstanding, they can object to the switch under industry rules, so clear it before the transfer date to avoid a hold.
5. Sign the new contract. Once the new supplier has your MPAN/MPRN and signed contract, the transfer typically completes within 4 to 8 weeks. There is no break in supply, you simply receive your first bill from the new supplier.

Need help with any of these steps? Our team handles the paperwork end-to-end as part of every quote.

Need help comparing Ruby Energy?

Purely Energy can check your current rates, compare renewal options across gas and electricity suppliers, and review whether switching could reduce your business energy costs.

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FAQs

Who supplies energy under the Ruby Energy brand?+

Ruby Energy is the customer-facing trading name for a group of related Ofgem licences held by RUBY ELECTRICITY LTD. and RUBY GAS LTD.. Multiple licence holders is normal for larger UK energy groups and reflects how the supply business is structured for regulatory and operational reasons.

What is the Ruby Energy business contact number?+

Ruby Energy can be reached on 0344 5678 427 or by email at metering.gas@rubyenergy.uk; Hello@rubyenergy.uk. The official contact page is https://rubyenergy.uk/get-in-touch/.

Does Ruby Energy publish out-of-contract rates?+

Ruby Energy does not appear to publish a standard deemed or out-of-contract rate online. Business customers should request a written renewal quote in advance of their contract end date and compare it against live market prices.

Can I switch away from Ruby Energy?+

In most cases, businesses can switch gas and electricity supply away from Ruby Energy at the end of a fixed-term contract or after resolving any objections, debt, termination-window, or meter-data issues. The safest route is to check your contract terms, final bill position, and renewal dates before starting a transfer.

How long does it take to switch from Ruby Energy?+

Once a new supplier has the meter point details (MPAN/MPRN) and a signed contract, a non-domestic switch typically completes within 4 to 8 weeks. Supply does not break: the new supplier takes over billing on the transfer date.

Is Ruby Energy a UK-licensed supplier?+

Yes. Ruby Energy is on the Ofgem non-domestic licensee register for both gas and electricity. Ofgem maintains the official register at ofgem.gov.uk.

What are out-of-contract business energy rates?+

Out-of-contract rates are the prices a business pays when no fixed-term contract is in place with its supplier. They can be materially higher than negotiated contract rates, so businesses should check their contract end date and renewal window before they expire.

Other UK gas and electricity suppliers

Compare Ruby Energy against these other UK non-domestic gas and electricity licensees on the same directory.

Or browse the full UK business energy supplier directory.

Sources

Public data this profile is built from. Always verify rate and contract details on the supplier's own website before relying on them.