THE NATIONAL MUSEUM OF COMPUTING

Registered charity 1109874 · accounts filings on the Charity Commission register · also known as CODESANDCIPHERS HERITAGE TRUST

The primary purpose of the Charity is to advance the education of the public with regard to the use and development of World War II technology, in particular the use of cryptography and computers and the development of computers to the present day.

Causes: Education/training · Environment/conservation/heritage · website · Get email alerts

Financial health, per its FY2025 accounts

The accounts state that the charity reported a net expenditure of £164,506 for the year, resulting in a drop in unrestricted reserves from £444,497 to £279,991. The trustees confirm that these reserves remain well within their stated policy limits and that there are no material uncertainties regarding the charity's ability to continue as a going concern.

Automated summary of the FY2025 accounts; the evidenced findings below carry the verbatim passages.

What the accounts disclose

Accounts independently examined (not a full audit). Discloses 6 of 6 completeness components.

Public fundraising profile: JustGiving — The National Museum of Computing (matched by registered charity number).

Funders the charity credits

Named as funders/supporters on the charity’s own website (the charity’s claim, distinct from accounts-verified grants).

• The Post Office Remembrance Fellowship (PORF) — “The National Museum of Computing (TNMoC) is thrilled to announce a major funding partnership with The Post Office Remembrance Fellowship (…” (source page)

Public profiles (found on the charity’s own website): facebook · instagram · linkedin

Structured financials (annual return, FY ending 31/03/2025)

Reported reserves equal ~3.0 months of spending — below the median for charities its size (median 5.2 months; benchmarks).

Per its annual return, largest income source: Charitable activities (94% of income) — components as reported reconcile to the return’s total income; not from the accounts narrative.

Per its annual return, cost of raising funds: 3.1% of total income — below the median for charities its size (4.9%) (benchmarks).

Register events

• Received assets from another charity (20/08/2025) — per the register’s event history; asset transfers typically record mergers or reorganisations.

Trustees · trustee networks

• ANDREW JOHN CLARK
• Alexander Rupert van Someren
• Benjamin Jon Trethowan
• Daniel Jeremy Peter Garratt · trustee of 1 other charity
• Dr Andrew Herbert
• Dr Shana Vijayan · trustee of 1 other charity
• Marios Kyriacou · trustee of 1 other charity
• Sarah-Jill Lennard
• Sir John Dermot Turing
• Timothy William Baker

Trustee list from the Charity Commission register (current, not historical).

Operates in: Milton Keynes

Income and spending

Common questions

Known funders

Grants to this charity found in funders’ own accounts filings.

Funders of similar charities

Funders whose accounts show grants to charities similar to this one (and no recorded grant to this charity) — a starting list for fundraisers.

Charities like this

Semantically similar by activities and financial character, from our analysed corpus. Compare with THE CENTRE FOR COMPUTING HISTORY.

• THE CENTRE FOR COMPUTING HISTORY income £417k
• BLETCHLEY PARK TRUST LIMITED income £7.6m
• NATIONAL COLLEGE FOR DIGITAL SKILLS income £5.4m
• LINCOLNSHIRE BOMBER COMMAND MEMORIAL income £1.7m
• CHINNOR AND PRINCES RISBOROUGH RAILWAY ASSOCIATION LIMITED income £200k
• THE MUSEUMS ASSOCIATION income £2.2m

Side by side with its peers

Each row is that charity’s latest analysed filing; every value is quote-backed on its own page.