Bletchley Park Trust Limited
To preserve and develop Bletchley Park as a world-class museum and heritage attraction which is open to the public 361 days a year, and provide an education programme both on-site and through outreach. Both functions are designed to enhance the understanding of its critical contribution to codebreaking and intelligence in World War II, and the birth of computers and electronic security.
Activities & Mission
To preserve and develop Bletchley Park as a world-class museum and heritage attraction which is open to the public 361 days a year, and provide an education programme both on-site and through outreach. Both functions are designed to enhance the understanding of its critical contribution to codebreaking and intelligence in World War II, and the birth of computers and electronic security.
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Where this charity is registered to operate, as self-declared to the Charity Commission. These are regulatory classifications, not a list of active programmes, and don't necessarily indicate fundraising activity in each location.
Local Authority
Financial Information
Financial Efficiency
Higher than 63% of UK Heritage charities with income £1M to £10M (sample: 126). How is this calculated?
Higher than 37% of UK Heritage charities with income £1M to £10M. How is this calculated?
Lower overhead than 35% of UK Heritage charities with income £1M to £10M. (Lower overhead is generally read as more efficient.) How is this calculated?
Latest Financial Breakdown
Income Sources
Expenditure Categories
Financial Trend
Annual Returns
As filed with the Charity Commission for England and Wales. Most recent filing covers the financial year ending 2025.
| Financial Year | Income | Expenditure | Charitable Spending | Net Assets | Reserves | Staff |
|---|---|---|---|---|---|---|
| 2025 | £7,739,897 | £8,894,279 | £7,028,395 | £11,920,070 | £2,899,515 | 114 / 324 |
| 2024 | £7,614,639 | £8,036,326 | £6,193,391 | £13,074,452 | £3,131,064 | 104 / 250 |
| 2023 | £8,369,288 | £8,734,981 | £7,214,589 | £13,407,570 | £2,569,305 | 91 / 255 |
| 2022 | £10,417,780 | £9,002,560 | £7,680,221 | £13,773,263 | £2,698,388 | 90 / 200 |
| 2021 | £6,445,493 | £7,083,606 | £6,157,816 | £12,436,737 | £2,352,107 | 82 / 220 |
Staff column shows: Employees / Volunteers
Frequently asked questions about Bletchley Park Trust Limited
What does Bletchley Park Trust Limited do?
To preserve and develop Bletchley Park as a world-class museum and heritage attraction which is open to the public 361 days a year, and provide an education programme both on-site and through outreach. Both functions are designed to enhance the understanding of its critical contribution to codebreaking and intelligence in World War II, and the birth of computers and electronic security.
How much income did Bletchley Park Trust Limited report in 2025?
Bletchley Park Trust Limited reported total income of £7.74m and reported expenditure of £8.89m for the financial year ending 2025, based on the most recent annual return filed with the Charity Commission.
How efficient is Bletchley Park Trust Limited?
Bletchley Park Trust Limited has a program ratio of 90.8%, meaning that share of its income goes directly to charitable activities. This is higher than 63% of UK Heritage charities with income £1M to £10M (sample of 126 charities). See our methodology for how this is calculated.
When was Bletchley Park Trust Limited registered as a charity?
Bletchley Park Trust Limited was registered with the Charity Commission for England and Wales on 10 July 1992 as charity number 1012743. It has been registered for 34 years.
Who runs Bletchley Park Trust Limited?
Bletchley Park Trust Limited is governed by a board of 6 trustees. Trustees are legally responsible for the charity's governance and are listed in full on its profile.
Where does Bletchley Park Trust Limited operate?
Bletchley Park Trust Limited operates across 2 areas: Buckinghamshire and Milton Keynes.
Is Bletchley Park Trust Limited a registered charity?
Yes — Bletchley Park Trust Limited is a registered charity in England and Wales, charity number 1012743.
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Registry Information
Other notable Heritage charities
Major UK charities in the same primary sector, drawn from the curated priority cohort.
- Wellcome TrustIncome: £589,458,608
- The Royal National Lifeboat InstitutionIncome: £286,700,000
- Royal Society for the Protection of BirdsIncome: £194,964,000
- The British Academy for the Promotion of Historical Philosophical and Philological StudiesIncome: £106,153,895
- The Woodland TrustIncome: £89,379,000
Trustees
Also governs 2 other charities
Sectors & Classifications
Data & trust
- Register data refreshed
- 2 November 2026
- Methodology
- How metrics are calculated