WMUK is the only charity in the UK focused solely on Waldenstrom's macroglobulinaemia (WM), a rare type of blood cancer. Our vision is that people affected by WM live longer, good quality lives, being supported every step of the way by WMUK. Our goal is to be the informed voice of WM in the UK.
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About WMUK
WMUK is a registered charity in England and Wales (registration number 1187121). Based on official Charity Commission data, it holds a "Platinum" rating with a CharityScore of 95/100 — one of the highest-rated charities in England and Wales for governance and transparency. This places it among the top-rated charities in our database, reflecting strong performance across governance, financial health, and regulatory compliance. In its most recent reporting year (2025), WMUK reported a total income of £423,817 and total expenditure of £350,914, a spending ratio of 83% indicating a strong proportion of funds directed to charitable work. According to the Charity Commission register, WMUK describes its activities as follows: WMUK is the only charity in the UK focused solely on Waldenstrom's macroglobulinaemia (WM), a rare type of blood cancer. Our vision is that people affected by WM live longer, good quality lives, being supported every step of the way by WMUK. Our goal is to be the informed voice of WM in the UK. Our analysis found no significant governance concerns for WMUK. No regulatory actions, filing failures, or financial anomalies were detected in the available public data. This profile is based on data publicly available from the Charity Commission for England and Wales and is updated periodically as new filings are processed. CharityScore UK provides independent, data-driven transparency ratings to help donors give with confidence — we are not affiliated with this charity or any government body.

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Financial History
Latest spending ratio: 82.8% of income spent on charitable work
| Year | Income | Spending | Ratio |
|---|---|---|---|
| 2025 | £423,817 | £350,914 | 83% |
Data sourced from the Charity Commission for England & Wales · Last scored 6/11/2026