The Pirbright Institute
Also known as: The Institute for Animal Health
To conduct and promote scientific research on infectious diseases of farm animals, including exotic diseases and to develop appropriate methods for their control; and on matters concerned with animal health and ancillary thereto, and to publish the results of such research.
Activities & Mission
To conduct and promote scientific research on infectious diseases of farm animals, including exotic diseases and to develop appropriate methods for their control; and on matters concerned with animal health and ancillary thereto, and to publish the results of such research.
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 89% of UK Research charities with income over £10M (sample: 98). How is this calculated?
Higher than 100% of UK Research charities with income over £10M. How is this calculated?
Lower overhead than 85% of UK Research charities with income over £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 | £52,700,000 | £59,519,000 | £59,497,000 | £324,632,000 | £13,187,000 | 398 / 0 |
| 2024 | £44,669,000 | £54,986,000 | £54,962,000 | £331,551,000 | £12,241,000 | 384 / 0 |
| 2023 | £46,862,000 | £50,602,000 | £50,580,000 | £341,648,000 | £9,676,000 | 357 / 0 |
| 2022 | £59,110,000 | £46,518,000 | £46,499,000 | £345,238,000 | £9,790,000 | 361 / 0 |
| 2021 | £80,683,000 | £48,000,000 | £47,982,000 | £330,646,000 | £9,997,000 | 373 / 0 |
Staff column shows: Employees / Volunteers
Frequently asked questions about The Pirbright Institute
What does The Pirbright Institute do?
To conduct and promote scientific research on infectious diseases of farm animals, including exotic diseases and to develop appropriate methods for their control; and on matters concerned with animal health and ancillary thereto, and to publish the results of such research.
How much income did The Pirbright Institute report in 2025?
The Pirbright Institute reported total income of £52.70m and reported expenditure of £59.52m for the financial year ending 2025, based on the most recent annual return filed with the Charity Commission.
How efficient is The Pirbright Institute?
The Pirbright Institute has a program ratio of 112.9%, meaning that share of its income goes directly to charitable activities. This is higher than 89% of UK Research charities with income over £10M (sample of 98 charities). See our methodology for how this is calculated.
When was The Pirbright Institute registered as a charity?
The Pirbright Institute was registered with the Charity Commission for England and Wales on 25 July 1977 as charity number 228824. It has been registered for 49 years.
Who runs The Pirbright Institute?
The Pirbright Institute 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 Pirbright Institute operate?
The Pirbright Institute operates in Surrey, as recorded in its Charity Commission filing.
Is The Pirbright Institute a registered charity?
Yes — The Pirbright Institute is a registered charity in England and Wales, charity number 228824.
Details
Ash Road
Pirbright
WOKING
Surrey
GU24 0NF
Registry Information
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Trustees
Sectors & Classifications
Also Known As
- The Institute for Animal Health
Data & trust
- Register data refreshed
- 14 May 2026
- Methodology
- How metrics are calculated