Marine Conservation Society
Also known as: The Marine Conservation Society Limited, M C S
The Marine Conservation Society fights for the future of our ocean through people powered action, with science on our side. We defend habitats and species, with communities, businesses and governments. Together, we work towards a cleaner, better protected, healthier ocean. For seas full of life, where nature flourishes and people thrive.
Activities & Mission
The Marine Conservation Society fights for the future of our ocean through people powered action, with science on our side. We defend habitats and species, with communities, businesses and governments. Together, we work towards a cleaner, better protected, healthier ocean. For seas full of life, where nature flourishes and people thrive.
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.
Country
Region
Financial Information
Financial Efficiency
Higher than 33% of UK Research charities with income £1M to £10M (sample: 356). How is this calculated?
Higher than 21% of UK Research charities with income £1M to £10M. How is this calculated?
Lower overhead than 19% of UK Research 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 | £5,339,836 | £5,250,911 | £4,180,874 | £1,830,348 | £1,089,690 | 103 / 18497 |
| 2024 | £5,130,045 | £4,967,281 | £4,007,094 | £1,741,423 | £1,141,771 | 101 / 16726 |
| 2023 | £4,666,213 | £5,566,156 | £4,598,764 | £1,578,659 | £1,124,404 | 110 / 18548 |
| 2022 | £4,356,330 | £4,766,803 | £3,891,473 | £2,478,602 | £1,624,083 | 92 / 20177 |
| 2021 | £4,253,632 | £4,153,529 | £3,268,267 | £2,889,075 | £1,525,118 | 78 / 26647 |
Staff column shows: Employees / Volunteers
Frequently asked questions about Marine Conservation Society
What does Marine Conservation Society do?
The Marine Conservation Society fights for the future of our ocean through people powered action, with science on our side. We defend habitats and species, with communities, businesses and governments. Together, we work towards a cleaner, better protected, healthier ocean. For seas full of life, where nature flourishes and people thrive.
How much income did Marine Conservation Society report in 2025?
Marine Conservation Society reported total income of £5.34m and reported expenditure of £5.25m for the financial year ending 2025, based on the most recent annual return filed with the Charity Commission.
How efficient is Marine Conservation Society?
Marine Conservation Society has a program ratio of 78.3%, meaning that share of its income goes directly to charitable activities. This is higher than 33% of UK Research charities with income £1M to £10M (sample of 356 charities). See our methodology for how this is calculated.
When was Marine Conservation Society registered as a charity?
Marine Conservation Society was registered with the Charity Commission for England and Wales on 28 August 1991 as charity number 1004005. It has been registered for 35 years.
Who runs Marine Conservation Society?
Marine Conservation Society is governed by a board of 13 trustees. Trustees are legally responsible for the charity's governance and are listed in full on its profile.
Where does Marine Conservation Society operate?
Marine Conservation Society operates across 3 areas: Scotland, Turks And Caicos Islands and England And Wales.
Is Marine Conservation Society a registered charity?
Yes — Marine Conservation Society is a registered charity in England and Wales, charity number 1004005.
Details
Ross Park
ROSS-ON-WYE
HEREFORDSHIRE
HR9 7US
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
- The Marine Conservation Society Limited
- M C S
Data & trust
- Register data refreshed
- 14 May 2026
- Methodology
- How metrics are calculated