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UK non-domestic supplier profile

Sembcorp Utilities (UK) Ltd business energy supplier profile

Sembcorp Utilities (UK) Ltd is the UK operating entity within the Sembcorp group, historically associated with Teesside/Wilton International industrial utilities and energy operations. Group materials describe Sembcorp as an integrated energy player with gas and related services, renewables, and merchant/retail capabilities, but I did not find a current public business supply offer or published UK business default tariff sheet for this legal entity.

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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.

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Snapshot, in plain English

Is Sembcorp Utilities (UK) Ltd right for your business?

Established supplier

Licensed for 23 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, 23 years trading, accounts current.

23 yrs tradingRisk band: Low riskLast accounts filed 2024-12-31Next accounts due 2025-12-31Status: Active
Your businessFitWhy
Single site SME FitOften competitive on single-site fixed rates.
Multi-site SME FitMost mid-market suppliers handle multi-site billing.
I&C £250k to £1m spend PossibleCheck counterparty viability over a 3-year term.
I&C above £1m spend Not suitedBelow the scale threshold for I&C tenders.
Verify on Companies House (free public record)

Quick facts

Trading nameSembcorp Utilities (UK) Ltd
Licence holder
SEMBCORP UTILITIES (UK) LTD.
Parent: Sembcorp Industries Ltd (group parent); Companies House legal entity: SEMBCORP UTILITIES (UK) LIMITED
Co. 04636301
SuppliesGas
Websitesembcorp.com
Business phone+44 1642 212000
Email / contactgbr-sol.communications@sembcorp.comContact page
Rate statusQuote required

Company data

Live data on the licence-holding companies behind Sembcorp Utilities (UK) Ltd, compiled by Purely Energy's independent research team and refreshed monthly.

Independent research on Sembcorp Utilities (UK) Ltdhasn't been published yet. Our monthly refresh will publish it at the next run.

Sembcorp Utilities (UK) Ltd out-of-contract and deemed rates

Not publicly published / quote required

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 Sembcorp Utilities (UK) Ltd may suit

Best fit for large industrial and energy-intensive sites, especially where on-site energy, steam, power, or integrated utilities solutions are required rather than small-business commodity supply. Public materials suggest a focus on major industrial customers and complex energy solutions.

Trading name and licence-holder notes

The licence holder appears to trade under the Sembcorp / SembUtilities brand historically, rather than a separate consumer-facing UK retail brand. Historic materials use SembCorp Utilities UK and the website www.sembutilities.co.uk; current public-facing UK energy retail branding was not clearly identifiable from official sources.

Switching from Sembcorp Utilities (UK) Ltd to a fixed business contract

UK businesses can switch gas supply away from Sembcorp Utilities (UK) Ltd 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. 1. Find your contract end date. It's on your last renewal letter or the most recent bill from Sembcorp Utilities (UK) Ltd. 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. 2. Get your 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. 3. Compare against the live market. Sembcorp Utilities (UK) Ltd 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. 4. Settle the final bill and clear any objections. Sembcorp Utilities (UK) Ltd 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. 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 Sembcorp Utilities (UK) Ltd?

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

Get a bespoke quote

FAQs

Who supplies energy under the Sembcorp Utilities (UK) Ltd brand?+

The Ofgem non-domestic licence is held by SEMBCORP UTILITIES (UK) LTD., ultimately part of Sembcorp Industries Ltd (group parent); Companies House legal entity: SEMBCORP UTILITIES (UK) LIMITED. The trading name on your bill or contract may differ from the licence holder, which is normal and reflects how UK energy is regulated.

What is the Sembcorp Utilities (UK) Ltd business contact number?+

Sembcorp Utilities (UK) Ltd can be reached on +44 1642 212000 or by email at gbr-sol.communications@sembcorp.com. The official contact page is https://www.wiltoninternational.com/contact/.

Does Sembcorp Utilities (UK) Ltd publish out-of-contract rates?+

Sembcorp Utilities (UK) Ltd 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 Sembcorp Utilities (UK) Ltd?+

In most cases, businesses can switch gas supply away from Sembcorp Utilities (UK) Ltd 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 Sembcorp Utilities (UK) Ltd?+

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 Sembcorp Utilities (UK) Ltd a UK-licensed supplier?+

Yes. Sembcorp Utilities (UK) Ltd is on the Ofgem non-domestic licensee register for gas. 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 suppliers

Compare Sembcorp Utilities (UK) Ltd against these other UK non-domestic gas 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.