The Governance RegisterEdition 2026 · Compiled 6th September 2026

Thames21 Limited

Registered charity 1103997 Registered since 2004

Operates: Throughout England

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Board DNA

How this board is put together, from Charity Commission trustee records and Companies House - deterministic, no AI.iBoard compositionCounted from the dated Charity Commission trustee register: the current board only, past trustees excluded.

9 trustees on the board

3.9y median 4y
average tenure
10y
longest tenure

Trustees past 6 years

6.9y
average years in governance

First-time vs portfolio trustees

First-time (8)

Portfolio (1)

9
company-linked trustees

Sector coverage iSector coverageThe charitable fields this board's trustees govern in elsewhere, by Charity Commission classification. Excludes this charity.

Arts/culture/heritage/science 9Education/training 9General Charitable Purposes 9

Commercial experience iCommercial experienceThe industries this board's members are company directors in, by Companies House SIC code. Excludes this organisation's own company.

Utilities 9Other services 3Business services 2

Succession forecast iSuccession forecastThe number of board seats likely to open in the next twelve months - summed across the board from each dated trustee’s tenure - and the profile worth recruiting next. From the filed record, deterministic.

🔒 Succession forecast is a Pro feature - the board seats likely to open in the next year and the ideal next trustee. Explore Pro →

Health of the organisation facts side by side - the conclusion is yours

Income v spending, filed accountsiIncome v spendingTotal gross income and expenditure from filed annual returns, Charity Commission, last 5 years.
2021
2022
2023
2024
2025
incomespending£3.2m latest income · spending exceeded income in 2024 and 2025
ReservesiReserves12 x free reserves / annual expenditure, from the Part B annual return. The sector median is computed across all Part B filers in the same income band.

1.5 months of spending held in free reserves · median for charities its size: 3.9 months

49 from 26 in 2021
EmployeesiEmployeesHeadcount as filed in Part B annual returns, per financial year. Shown exactly as filed; year-on-year figures may be filed on different bases, so a comparison is only shown when the filings are plausibly comparable.
53%
Income from governmentiIncome from governmentGovernment contracts plus government grants as a share of total gross income, latest Part A annual return.

Related organisations iRelated organisationsTwo groups, both deterministic from public records. Related organisations share two or more trustees with this board - a real structural link, such as a subsidiary or sister charity. Connected through a shared trustee share exactly one person - a genuine connection, but not the same group. A board with no shared trustee at all may still appear here when it is active in the same charitable field.

Also active in the same field

Deterministic, from public records.

Contact

Websitewww.thames21.org.uk
Emailinfo@thames21.org.uk
Phone02072487175
AddressCITY OF LONDON, GUILDHALL, ALDERMANBURY, LONDON, EC2V 7HH

Finances

£3,186,044 latest income

YearIncomeSpending
2021£1,076,104£1,069,274
2022£2,258,752£1,761,131
2023£2,458,675£2,145,919
2024£3,008,845£3,084,063
2025£3,186,044£3,326,295

What it does

What

General Charitable PurposesEducation/trainingArts/culture/heritage/scienceAnimalsEnvironment/conservation/heritageEconomic/community Development/employment

Who

Children/young PeopleElderly/old PeoplePeople With DisabilitiesPeople Of A Particular Ethnic Or Racial OriginOther Charities Or Voluntary BodiesOther Defined GroupsThe General Public/mankind

How

Provides ServicesProvides Advocacy/advice/informationSponsors Or Undertakes ResearchActs As An Umbrella Or Resource BodyOther Charitable Activities

Charitable objects

FOR THE PUBLIC BENEFIT TO PROTECT, MAINTAIN AND ENHANCE THE NATION'S RIVERS CANALS AND OTHER ASSOCIATED FEATURES (THE "WATERWAYS") IN PARTICULAR BY:(A) THE REMOVAL OF LITTER, WASTE AND DEBRIS;(B) ADVANCING EDUCATION IN THE PLANTS, WILDLIFE AND ECOSYSTEMS OF THE WATERWAYS AND OTHER RELATED SUBJECTS WHETHER BY TEACHING, PRODUCING MATERIALS OR BY CONDUCTING OR COMMISSIONING RESEARCH (AND PUBLISHING THE RESULTS OF SUCH RESEARCH); AND (C) RAISING AWARENESS OF THE WAYS IN WHICH THE WATERWAYS MIGHT BE PROTECTED FROM POLLUTION AND IMPROVED FOR THE BENEFIT OF THE PEOPLE AND WILDLIFE IN PARTICULAR BY THE USE OF PUBLICATIONS, LECTURES, THE MEDIA, PUBLIC ADVOCACY AND OTHER FORMS OF COMMUNICATION.

Governing document: MEMORANDUM AND ARTICLES OF ASSOCIATION INCORPORATED 5 DECEMBER 2003 AS AMENDED BY SPECIAL RESOLUTIONS DATED 27 APRIL 2004 AND 9 AUGUST 2004.

Trustees (9)

9trustees
50median age
0aged 70+

Linked company (Companies House)

Thames21 Limited · 04985828 · Active

PRI/LTD BY GUAR/NSC (Private, limited by guarantee, no share capital) · incorporated 05/12/2003

3 governing document(s) held from Companies House.

Connected charities (2)

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