The most useful thing to know about the companies on this page is that hardly any of them own a network. Most are retailers. They rent space on somebody else's wires, then compete on price, the router in the box and how long you wait on hold. So before weighing one brand against another, it helps to know whose wires each would be renting at your address.

Openreach carries most of the market. BT, Sky, EE, TalkTalk, Vodafone, Plusnet, NOW and dozens of smaller names all sell over the same Openreach line into your house. Move between them and you are swapping shopfronts, not infrastructure; the same line simply gets a new name on the bill. Openreach lines come in two grades. The older part-copper kind, sold under fibre deals, still leans on the phone line for its final stretch. The newer all-fibre kind runs glass the whole way and is several times quicker.

Virgin Media O2 is the one big name on its own separate network, a cable system now being extended with full fibre and its gigabit footprint reached 18.8 million premises by the end of 2025. No Openreach line is involved at any point.

The altnets are independent full fibre builders, collectively past 19.7 million premises. The biggest, CityFibre, topped a million customers in June 2026 and sells wholesale, so you buy it through Sky, Vodafone, TalkTalk or Zen rather than from CityFibre itself. Others sell under their own name: Hyperoptic in city buildings, Community Fibre in London, Gigaclear out in the fields.

Mobile networks carry the fourth kind. 5G home broadband from Three, EE and Vodafone runs off the phone mast rather than a cable. Mobile broadband deals suit renters, movers and streets where the signal beats the wiring. Many run on rolling terms rather than a long tie-in, the same appeal behind no-contract deals. One warning: Sky does not sell 5G home broadband, whatever a confident search result tells you.

The newest complication is that a single brand can now span two networks. Sky at one address is an Openreach service; at another it arrives over CityFibre with different top speeds. Vodafone and TalkTalk straddle the same line. Your address decides, which is why the grid above asks for a postcode before it shows you anything. And if the acronyms blur, what matters is which of the connection types a deal is actually selling you, not what the brand calls it.

Coverage itself is no longer the lottery it once was. Around 9 in 10 UK premises can now get gigabit-capable broadband from at least one of these networks.

BT. The name people say when they mean broadband in general. Mainstream prices, dependable kit and first in the queue wherever sister company Openreach lays full fibre.

Sky. The broadband-and-telly heavyweight and the obvious starting point for broadband and TV deals on one bill. Now sells over Openreach or CityFibre depending on address, with its fastest tiers on the latter.

Virgin Media. The speed merchant. Gigabit has been available across almost its whole network for years.

EE. BT's consumer flagship and the sibling that gets the fast toys first: the quickest tiers in the BT family and a strong line in pairing broadband with mobile.

Vodafone. Frequently among the cheapest big names, sold over Openreach and CityFibre. Its complaints record is the catch, of which more below.

TalkTalk. The budget stalwart, twenty years into the same job: keeping the bigger names' prices nervous.

Plusnet. BT's no-frills Yorkshire brand. No TV, no theatrics and regularly the fewest complaints in the country.

NOW. Sky's commitment-light sibling. Same network underneath, flexible memberships instead of long bundles.

Hyperoptic. The apartment specialist, strongest in city blocks and new builds, with uploads as fast as its downloads.

Community Fibre. London only, all 33 boroughs, symmetric full fibre and routinely the name that makes the nationals look expensive in the capital.

Cheapest. TalkTalk, Plusnet and NOW usually set the floor among the nationals and wherever an altnet has built it tends to dip under all three. The grid above does the postcode arithmetic and weighing up cheap broadband deals across the whole market shows who actually undercuts whom once every fee is counted. If you will never use a landline or a TV bundle, broadband-only deals keep the package lean.

Fastest. Virgin Media puts gigabit on the widest single footprint. Sky and Vodafone reach multi-gigabit tiers through CityFibre, while Hyperoptic and Community Fibre send uploads as fast as downloads. The top tiers differ enough by network that comparing full fibre deals at your own address beats any national generalisation and how much speed your household needs is worth answering before you pay for five gigabits of bragging rights.

Best service. Plusnet and Virgin Media come out cleanest in the most recent Ofcom figures, with Sky consistently near the front. The numbers and the caveat are below.

Fixed price. For contracts signed since 17 January 2025, any mid-contract rise must be shown in pounds and pence before you sign, so read that line on the advert. Most big brands schedule a rise each spring; some altnets, Community Fibre among them, still fix the price for the whole term. The rest of the small print in broadband contracts rewards ten minutes of attention.

On benefits. Every major provider runs a social tariff for households on Universal Credit and other qualifying benefits. BT Home Essentials, Virgin Media Essential, Sky Basics, NOW Basics and Vodafone Essentials are among them; Ofcom keeps the full list.

Every provider claims award-winning service, so we skip the claims and read Ofcom's quarterly complaints figures instead. In the most recent data, covering Q4 2025 and published in May 2026, Plusnet and Virgin Media drew the fewest broadband complaints while Vodafone and TalkTalk drew the most.

Treat that as a snapshot, not scripture. The rankings shift quarter to quarter and Virgin Media itself went from among the most complained about to joint best in under two years. Check Ofcom's latest figures before one bad quarter or one flattering one decides your next two years.