Centre For Alternative Technology Charity Limited
Also known as: Society for Environmental Improvement Limited
CAT seeks to inspire, inform and enable people to adopt sustainable technologies and practices. The Charity achieves its objectives by: promoting scenarios for a Zero Carbon Britian; providing education through school visits, short courses and postgraduate teaching; publishing a members' magazine; providing a free information service; operating a visitor centre; hosting external events.
Activities & Mission
CAT seeks to inspire, inform and enable people to adopt sustainable technologies and practices. The Charity achieves its objectives by: promoting scenarios for a Zero Carbon Britian; providing education through school visits, short courses and postgraduate teaching; publishing a members' magazine; providing a free information service; operating a visitor centre; hosting external events.
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 Arts charities with income £1M to £10M (sample: 780). How is this calculated?
Higher than 29% of UK Arts charities with income £1M to £10M. How is this calculated?
Lower overhead than 10% of UK Arts 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 | £4,310,221 | £4,085,759 | £3,613,415 | £1,559,729 | £0 | 75 / 70 |
| 2024 | £4,065,203 | £4,272,827 | £3,896,476 | £1,335,267 | £0 | 98 / 50 |
| 2023 | £4,514,972 | £4,725,480 | £4,186,325 | £1,542,891 | £980,419 | 109 / 50 |
| 2022 | £3,797,157 | £3,850,744 | £3,431,692 | £1,753,399 | £83,450 | 99 / 50 |
| 2021 | £2,873,700 | £3,175,022 | £2,800,856 | £1,806,986 | £1,111,748 | 91 / 20 |
Staff column shows: Employees / Volunteers
Frequently asked questions about Centre For Alternative Technology Charity Limited
What does Centre For Alternative Technology Charity Limited do?
CAT seeks to inspire, inform and enable people to adopt sustainable technologies and practices. The Charity achieves its objectives by: promoting scenarios for a Zero Carbon Britian; providing education through school visits, short courses and postgraduate teaching; publishing a members' magazine; providing a free information service; operating a visitor centre; hosting external events.
How much income did Centre For Alternative Technology Charity Limited report in 2025?
Centre For Alternative Technology Charity Limited reported total income of £4.31m and reported expenditure of £4.09m for the financial year ending 2025, based on the most recent annual return filed with the Charity Commission.
How efficient is Centre For Alternative Technology Charity Limited?
Centre For Alternative Technology Charity Limited has a program ratio of 83.8%, meaning that share of its income goes directly to charitable activities. This is higher than 35% of UK Arts charities with income £1M to £10M (sample of 780 charities). See our methodology for how this is calculated.
When was Centre For Alternative Technology Charity Limited registered as a charity?
Centre For Alternative Technology Charity Limited was registered with the Charity Commission for England and Wales on 2 March 1973 as charity number 265239. It has been registered for 53 years.
Who runs Centre For Alternative Technology Charity Limited?
Centre For Alternative Technology Charity Limited is governed by a board of 7 trustees. The chair of trustees is Benjamin Duncan Summers. Trustees are legally responsible for the charity's governance and are listed in full on its profile.
Where does Centre For Alternative Technology Charity Limited operate?
Centre For Alternative Technology Charity Limited operates in Powys, as recorded in its Charity Commission filing.
Is Centre For Alternative Technology Charity Limited a registered charity?
Yes — Centre For Alternative Technology Charity Limited is a registered charity in England and Wales, charity number 265239.
Details
Llwyngwern Quarry
Pantperthog
Machynlleth
SY20 9AZ
Registry Information
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Trustees
Sectors & Classifications
Also Known As
- Society for Environmental Improvement Limited
Data & trust
- Register data refreshed
- 14 May 2026
- Methodology
- How metrics are calculated