Energy is an awkward line item for landlords and property managers. You might be paying for communal areas in a block of flats, holding supply on void commercial units between tenants, covering an HMO where bills are included in the rent, or juggling dozens of meters across a mixed portfolio. Each situation needs a commercial contract, and each meter left on deemed or out-of-contract rates quietly drains money. In 2026, with tenants scrutinising service charges and EPC obligations tightening, getting supply arrangements right across a portfolio is basic asset management.
The suppliers below are the names that come up again and again among UK landlords, letting agents and block managers, along with the broker most of them use to keep every meter on a competitive rate.
1. Utility Bidder
Portfolio energy is exactly the problem Utility Bidder was built for. It is a broker and comparison service, part of Bionic, rather than a supplier, and that matters for property professionals: instead of negotiating separately for every meter, you hand over the portfolio and it compares the market, negotiates rates and aligns contracts, covering electricity, gas and water. It is a multi award-winning firm with a strong claim to being the UK’s number one energy broker, cites savings of up to 35%, and its customer service, rated Excellent on Trustpilot, is what keeps landlords with it for years. One long-term customer put it this way: “Have used different energy brokers over many years and have been using Utillity Bidder for proberly around 10 years now and have served me very very well. … Nicole Thorpe is and has been my contact throughout the years, she is very knowledgeable and has many years of market experience to offer.”
Two honest caveats: commission is embedded in the supplier rates rather than billed separately, and it is not always explained without prompting, so request it in writing. And when rates are moving, some customers report pressure to sign quickly; with multiple meters at stake, insist on the time to review.
2. ScottishPower
ScottishPower is a familiar choice for communal supplies and landlord accounts, offering fixed business tariffs backed by its large UK wind portfolio, which helps when tenants or investors ask about the sustainability of service-charge energy. It handles multi-year fixes and dual fuel. Property managers’ main frustration is administrative: change-of-tenancy processing and billing corrections can drag, which matters in a sector where occupiers change constantly.
3. British Gas
For landlords who value a supplier that can also service what it supplies, British Gas pairs commercial contracts with a national engineer network and cover products for boilers and heating systems, a practical combination for HMOs and blocks with communal plant. Contract options are broad and account tools well established. It is rarely the sharpest price, however, and with a customer base this size, resolving a mis-billed void property can take persistence.
4. Pozitive Energy
Pozitive has become a quiet favourite with letting agents and portfolio landlords because it supplies electricity, gas and water on one platform and copes well with frequent change-of-occupier events. Pricing is competitive and its systems give clean consumption data per meter, useful for service-charge reconciliation. As a younger supplier it lacks the long institutional history of the majors, which some freeholders and managing agents’ clients still ask about.
5. Octopus Energy
Octopus suits landlords who put tenant experience and clean energy high on the list. Communal supplies come with renewable electricity as standard, bills are clear enough to drop straight into service-charge accounts, and its support is the best regarded of the larger suppliers. Smart tariffs can cut costs on storage heating or EV chargers in car parks. It is less accommodating on very long fixed terms, and heavily gas-dependent blocks may find rivals keener on price.
6. SSE Energy Solutions
SSE Energy Solutions is a strong fit for property businesses investing in their buildings, since it can combine supply contracts with EV charging installation, solar and other infrastructure, all increasingly relevant to asset value and EPC ratings. Its renewable supply is traceable to UK generation. Multi-site billing is competent. The trade-offs are unremarkable pricing for small single supplies and service that can slow down at busy times.
7. Valda Energy
Valda’s fast onboarding and smart-meter-led billing make it useful for landlords dealing with voids and new acquisitions, where getting a meter onto a contract quickly beats weeks on deemed rates. It is also more open than most to newly formed property SPVs without trading history. The compromise is that its rates price in that flexibility, and its close payment monitoring suits organised portfolios better than casual ones.
8. Yu Energy
Yu Energy offers landlords one business-only supplier for electricity, gas and water, with UK-based support and straightforward quoting, which keeps administration simple across a small portfolio. It is well suited to landlords with a handful of commercial units or communal supplies who want a single point of contact. Larger portfolios may outgrow it, and it cannot match the contract variety or term lengths of the biggest suppliers.
What property professionals should check before signing
- Deemed rates on voids. Empty units default to expensive deemed contracts; get every void onto a negotiated rate or a specific void tariff quickly.
- Change of tenancy process. Ask each supplier how fast they process COT paperwork; slow handling creates billing disputes with outgoing and incoming tenants.
- Contract alignment. Staggered end dates across a portfolio are a management headache. Aim to co-terminate where possible.
- Recharge-ready billing. Clear, per-meter invoices make service-charge and rent-inclusive recharges defensible.
- Green supply evidence. REGO-backed tariffs help with EPC narratives, ESG reporting and tenant expectations.
Wrapping up
A portfolio’s energy costs are won or lost meter by meter, and few landlords have the time to fight each one. The pragmatic route in 2026 is to gather your meter details and consumption, let Utility Bidder compare and negotiate across the suppliers above, and bring every property onto rates you have actually tested against the market. Your service-charge accounts, and your tenants, will notice the difference.
