The Hertfordshire And Middlesex Wildlife Trust Limited
Also known as: Hmwt
Herts and Middlesex Wildlife Trust works to protect wildlife. We take practical action every day across more than 40 nature reserves to ensure the survival of native species and their habitats, and give people access to nature.The Wildlife Trusts are unique in being the only organisations that work to protect the full range of UK habitats and species, at a local level.
Activities & Mission
Herts and Middlesex Wildlife Trust works to protect wildlife. We take practical action every day across more than 40 nature reserves to ensure the survival of native species and their habitats, and give people access to nature.The Wildlife Trusts are unique in being the only organisations that work to protect the full range of UK habitats and species, at a local level.
Areas of Operation
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 35% of UK Environment charities with income £1M to £10M (sample: 234). How is this calculated?
Higher than 28% of UK Environment charities with income £1M to £10M. How is this calculated?
Lower overhead than 26% of UK Environment 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 | £3,839,572 | £3,444,402 | £2,768,404 | £5,584,536 | £1,901,309 | 49 / 650 |
| 2024 | £2,859,247 | £2,831,319 | £1,729,572 | £5,180,137 | £1,453,130 | 51 / 1000 |
| 2023 | £2,564,000 | £2,782,000 | £2,026,000 | £5,096,000 | £382,000 | 42 / 1052 |
| 2022 | £2,430,000 | £2,310,000 | £1,645,000 | £5,383,000 | £765,000 | 38 / 955 |
| 2021 | £2,176,000 | £2,025,000 | £1,561,000 | £5,242,000 | £917,000 | 35 / 730 |
Staff column shows: Employees / Volunteers
Frequently asked questions about The Hertfordshire And Middlesex Wildlife Trust Limited
What does The Hertfordshire And Middlesex Wildlife Trust Limited do?
Herts and Middlesex Wildlife Trust works to protect wildlife. We take practical action every day across more than 40 nature reserves to ensure the survival of native species and their habitats, and give people access to nature.The Wildlife Trusts are unique in being the only organisations that work to protect the full range of UK habitats and species, at a local level.
How much income did The Hertfordshire And Middlesex Wildlife Trust Limited report in 2025?
The Hertfordshire And Middlesex Wildlife Trust Limited reported total income of £3.84m and reported expenditure of £3.44m for the financial year ending 2025, based on the most recent annual return filed with the Charity Commission.
How efficient is The Hertfordshire And Middlesex Wildlife Trust Limited?
The Hertfordshire And Middlesex Wildlife Trust Limited has a program ratio of 72.1%, meaning that share of its income goes directly to charitable activities. This is higher than 35% of UK Environment charities with income £1M to £10M (sample of 234 charities). See our methodology for how this is calculated.
When was The Hertfordshire And Middlesex Wildlife Trust Limited registered as a charity?
The Hertfordshire And Middlesex Wildlife Trust Limited was registered with the Charity Commission for England and Wales on 3 January 1965 as charity number 239863. It has been registered for 61 years.
Who runs The Hertfordshire And Middlesex Wildlife Trust Limited?
The Hertfordshire And Middlesex Wildlife Trust Limited is governed by a board of 11 trustees. Trustees are legally responsible for the charity's governance and are listed in full on its profile.
Where does The Hertfordshire And Middlesex Wildlife Trust Limited operate?
The Hertfordshire And Middlesex Wildlife Trust Limited operates across 5 areas, including Barnet, Enfield, Harrow and 2 others. The full list is shown on its profile.
Is The Hertfordshire And Middlesex Wildlife Trust Limited a registered charity?
Yes — The Hertfordshire And Middlesex Wildlife Trust Limited is a registered charity in England and Wales, charity number 239863.
Details
ST MICHAELS STREET
ST ALBANS
HERTS
AL3 4SN
Registry Information
Is this your charity?
Add your logo, photos and tell the story behind the numbers in your own words. Free for our first 50 launch partners.
Claim this listing Learn more about premium profilesOther notable Environment charities
Major UK charities in the same primary sector, drawn from the curated priority cohort.
Trustees
Also governs 1 other charity
Sectors & Classifications
Also Known As
- Hmwt
Data & trust
- Register data refreshed
- 14 May 2026
- Methodology
- How metrics are calculated