Mortgage Brokers List
Largest UK mortgage lenders
Six banking groups and building societies made about three-quarters of new UK mortgage lending in 2025. Here are the official figures, and what they mean when you choose a lender or a broker.
Last checked 13 September 2026. Editor: Kris · editorial standards
Source: UK Finance, Largest mortgage lenders, table MM10 (published 30 July 2026). Figures are for UK Finance members, on a financial group basis, rounded to the nearest £100 million, and exclude second-charge lending.
1. The big six
By gross (new) lending in 2025, the six largest UK mortgage lenders were Lloyds Banking Group, Nationwide, NatWest, Barclays, HSBC and Santander. Together they accounted for 75% of new lending by UK Finance members.
2. Top 20 by new lending, 2025
| Rank | Lender (group) | Gross lending 2025 | Market share | Rank 2024 |
|---|---|---|---|---|
| 1 | Lloyds Banking Group | £52.2bn | 18.0% | 1 |
| 2 | Nationwide BS | £49.4bn | 17.0% | 2 |
| 3 | NatWest Group | £35.1bn | 12.1% | 3 |
| 4 | Barclays | £31.3bn | 10.8% | 4 |
| 5 | HSBC Bank | £25.2bn | 8.7% | 5 |
| 6 | Santander UK | £24.9bn | 8.6% | 6 |
| 7 | Yorkshire BS | £9.5bn | 3.3% | 7 |
| 8 | Coventry BS | £7.0bn | 2.4% | 8 |
| 9 | Skipton BS | £6.9bn | 2.4% | 9 |
| 10 | TSB Bank | £5.7bn | 2.0% | 11 |
| 11 | Leeds BS | £4.8bn | 1.7% | 10 |
| 12 | Co-operative Bank | £3.2bn | 1.1% | 12 |
| 13 | Bank of Ireland | £2.6bn | 0.9% | 13 |
| 14 | Principality BS | £2.3bn | 0.8% | 14 |
| 15 | Aldermore Bank | £2.1bn | 0.7% | 15 |
| 16 | Newcastle BS | £1.2bn | 0.4% | 18 |
| 16 | OneSavings Bank | £1.2bn | 0.4% | 16 |
| 16 | Pepper Money | £1.2bn | 0.4% | 26 |
| 16 | Shawbrook Group | £1.2bn | 0.4% | 18 |
| 16 | West Bromwich BS | £1.2bn | 0.4% | 16 |
| 21 | Kensington Mortgage Company | £1.1bn | 0.4% | 21 |
Lenders with equal figures share a rank. Santander grew fastest of the big six, from £15.8bn in 2024 to £24.9bn, almost level with HSBC (£25.2bn).
3. Largest by mortgages outstanding, 2025
| Rank | Lender (group) | Balances outstanding | Market share |
|---|---|---|---|
| 1 | Lloyds Banking Group | £318.3bn | 18.8% |
| 2 | Nationwide BS | £283.3bn | 16.7% |
| 3 | NatWest Group | £199.7bn | 11.8% |
| 4 | Barclays | £167.1bn | 9.9% |
| 4 | Santander UK | £167.1bn | 9.9% |
| 6 | HSBC Bank | £135.7bn | 8.0% |
| 7 | Coventry BS | £52.5bn | 3.1% |
| 8 | Yorkshire BS | £49.3bn | 2.9% |
| 9 | TSB Bank | £34.0bn | 2.0% |
| 10 | Skipton BS | £31.1bn | 1.8% |
Balances show who holds the most existing mortgages; gross lending shows who is lending most now. The two rankings differ: Coventry holds more mortgages than Yorkshire, but Yorkshire lent more in 2025.
4. Groups lend under several brands
The figures are by group, so one line can cover several names you'll see on mortgage offers. For example:
- BM Solutions is "the Buy to Let brand of Lloyds Banking Group" and works with mortgage brokers (BM Solutions).
- The Mortgage Works is "a wholly owned subsidiary of Nationwide Building Society" (TMW).
- Accord Mortgages is part of the Yorkshire Building Society group, and its website is "for use by authorised intermediaries only": its mortgages are available through brokers (Accord).
Some specialist lenders also work mainly or only through brokers, so their deals don't appear on comparison of high-street banks' own websites. A broker will know which ones fit your case.
5. What this means for you
- Size isn't the same as best for you. The largest lenders have the widest range for straightforward cases; smaller building societies and specialist lenders often lead for self-employed borrowers, later-life lending, high loan-to-income and unusual properties.
- A broker reaches more of this list than you can alone. Broker-only brands and intermediary products are only available through a broker. See types of mortgage broker and find brokers by town.
- Check affordability first. Every lender applies its own model; the borrowing calculator gives a starting range.
Common questions
Who are the big six mortgage lenders?
By new lending in 2025: Lloyds Banking Group (including Halifax), Nationwide, NatWest, Barclays, HSBC and Santander.
Who is the biggest mortgage lender in the UK?
Lloyds Banking Group, both by new lending (£52.2bn, 18.0%) and by mortgages outstanding (£318.3bn, 18.8%) in 2025.
Which lenders only work through brokers?
Accord Mortgages is one example: its website is for authorised intermediaries only. Some specialist lenders work the same way. A broker can tell you which of them fit your case.
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General information, not advice. Mortgage Brokers List is a directory and a set of free tools. Only an FCA-authorised adviser can recommend a mortgage for your circumstances. See our editorial standards.