The Institution Of Environmental Sciences Limited
Also known as: Ies
The Institution is a charitable organisation which promotes and raises public awareness of environmental science by supporting professional scientists and academics.
Activities & Mission
The Institution is a charitable organisation which promotes and raises public awareness of environmental science by supporting professional scientists and academics.
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.
Region
Financial Information
Financial Efficiency
Higher than 64% of UK Research charities with income £100K to £1M (sample: 273). How is this calculated?
Higher than 56% of UK Research charities with income £100K to £1M. How is this calculated?
Lower overhead than 64% of UK Research charities with income £100K to £1M. (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.
One or more years show a significant change in income (over ±100%) compared with the prior year. This usually reflects a merger, transfer of activities, restated accounts, or a one-off legacy — not necessarily a real change in operating scale. See the methodology for context.
The Commission record shows this related event on the register:
- Asset transfer in in 2024 — Environmental Protection UK (organisation 221026)
| Financial Year | Income | Expenditure | Charitable Spending | Net Assets | Reserves | Staff |
|---|---|---|---|---|---|---|
| 2025 | £859,627 | £821,403 | £802,003 | £1,823,575 | £103,500 | 12 / 400 |
| 2024 | £1,939,342 | £848,867 | £811,517 | £1,818,429 | £44,386 | 12 / 400 |
| 2023 | £1,192,114 | £574,539 | £574,325 | £664,388 | £111,900 | 10 / 400 |
| 2022 | £530,294 | £537,488 | £536,623 | £263,690 | £117,900 | 12 / 400 |
| 2021 | £510,572 | £460,105 | £459,884 | £270,883 | £117,900 | 10 / 180 |
Staff column shows: Employees / Volunteers
Frequently asked questions about The Institution Of Environmental Sciences Limited
What does The Institution Of Environmental Sciences Limited do?
The Institution is a charitable organisation which promotes and raises public awareness of environmental science by supporting professional scientists and academics.
How much income did The Institution Of Environmental Sciences Limited report in 2025?
The Institution Of Environmental Sciences Limited reported total income of £860k and reported expenditure of £821k for the financial year ending 2025, based on the most recent annual return filed with the Charity Commission.
How efficient is The Institution Of Environmental Sciences Limited?
The Institution Of Environmental Sciences Limited has a program ratio of 93.3%, meaning that share of its income goes directly to charitable activities. This is higher than 64% of UK Research charities with income £100K to £1M (sample of 273 charities). See our methodology for how this is calculated.
When was The Institution Of Environmental Sciences Limited registered as a charity?
The Institution Of Environmental Sciences Limited was registered with the Charity Commission for England and Wales on 19 June 1979 as charity number 277611. It has been registered for 47 years.
Who runs The Institution Of Environmental Sciences Limited?
The Institution Of Environmental Sciences Limited is governed by a board of 12 trustees. Trustees are legally responsible for the charity's governance and are listed in full on its profile.
Where does The Institution Of Environmental Sciences Limited operate?
The Institution Of Environmental Sciences Limited operates in England And Wales, as recorded in its Charity Commission filing.
Is The Institution Of Environmental Sciences Limited a registered charity?
Yes — The Institution Of Environmental Sciences Limited is a registered charity in England and Wales, charity number 277611.
Details
130-132 Tooley Street
LONDON
SE1 2TU
Registry Information
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Major UK charities in the same primary sector, drawn from the curated priority cohort.
Trustees
Also governs 1 other charity
Also governs 1 other charity
Sectors & Classifications
Also Known As
- Ies
Data & trust
- Register data refreshed
- 14 May 2026
- Methodology
- How metrics are calculated