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Treebeard Trust

Charity No 1200102 · Charity Commission Sign up to see website
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71
Integrity Assessment
Strong transparency
71/100 · methodology

About Treebeard Trust

Treebeard Trust is a charitable foundation set up by Barnaby and Cassandra Wiener in 2011. Our mission is to support transformational initiatives which have the potential to create a healthier planet and fairer society.

Founded
Size
medium

Focus areas & reach

· What they work on and where
🌿 Environment
SDG alignment The 17 UN Sustainable Development Goals (SDGs) are the global agenda for ending poverty, protecting the planet, and ensuring prosperity by 2030. We tag each charity to the goals its work advances.
SDG 13 SDG 13 · Climate Action Take urgent action to combat climate change and its impacts. SDG 14 SDG 14 · Life Below Water Conserve and sustainably use the oceans, seas, and marine resources. SDG 15 SDG 15 · Life on Land Protect, restore, and promote sustainable use of terrestrial ecosystems and biodiversity.

How it stacks up against peers

· vs. 8 similar environment in United Kingdom
Program spending This charity: 100%
Peer average: 97%
Integrity Assessment This charity: 71
Peer average: 88

Red flags

· All clear
Charity Commission removal
Open investigations
Governance scandals
Related-party deals
Excessive exec comp

Where every £1 goes

£1.00
Program expenses£1.00 (£1.1 million)
100% to programs beats the peer average (97%) and beats the Charity Navigator "highly efficient" threshold (75%).

Common questions

· Auto-generated from filings + methodology

Treebeard Trust is a registered environment nonprofit, United Kingdom. It is registered with the Charity Commission for England and Wales. It was founded in 2022. Its registration number is 1200102. It has a GiveRadar Integrity Assessment of 71/100 (Strong transparency), indicating well-documented governance, financials, and contact details. This is below the average of 88/100 for environment charities in United Kingdom. The organization reports £3M in annual revenue. 5 officers and directors are publicly disclosed. No red flags have been detected.

Treebeard Trust has a GiveRadar Integrity Assessment of 71/100. This score combines five components: Registration (20 pts), Financial Transparency (30 pts), Governance (20 pts), Contact Availability (10 pts), and Data Recency (20 pts), with negative adjustments for any red flags. A score of 71 ('Strong transparency') reflects well-documented governance, recent financials, named leadership, and working contact details. The charity allocates 100% of expenses to programs, which contributes positively to its score. For comparison, the average integrity assessment for environment charities in United Kingdom is 88/100.

Treebeard Trust is registered in United Kingdom. The organization was established in 2022 and has been active for 4 years.

Based on official tax filings, Treebeard Trust has £3M in annual revenue. It allocates 100% of expenses to programs and services. This is in line with the average of 97% for environment charities in United Kingdom. Its revenue is significantly above the peer average of £1M. Create a free GiveRadar account to view the complete financial breakdown with year-over-year trends.

Treebeard Trust is classified as a Environment organization, registered in United Kingdom. By size, it is categorized as a medium organization. It has £3M in annual revenue. The organization has 5 disclosed officers and directors.

No red flags have been detected for Treebeard Trust. GiveRadar automatically screens charities for concerning patterns including high executive compensation, low program spending, and missing financial filings. Based on available official data, no issues have been identified.

Treebeard Trust has a GiveRadar Integrity Assessment of 71/100 (Strong transparency) and no red flags have been detected, which suggests it is a well-documented organization. It is regulated by the Charity Commission. 100% of expenses go to programs. The peer average is 97%. Visit the Treebeard Trust profile on GiveRadar for full details before deciding. GiveRadar provides data for research purposes and does not endorse any organization. Always do your own due diligence.

Treebeard Trust is a charitable foundation set up by Barnaby and Cassandra Wiener in 2011. Our mission is to support transformational initiatives which have the potential to create a healthier planet and fairer society. Treebeard Trust is classified as a environment organization registered in United Kingdom. The organization was founded in 2022.

Among environment charities registered in United Kingdom: Treebeard Trust's GiveRadar Integrity Assessment of 71/100 is below the peer average of 88/100. It allocates 100% of expenses to programs, in line with the peer average of 97%. Its annual revenue of £3M is well above the peer average of £1M.

Treebeard Trust is a registered charity in the United Kingdom. If you are a UK taxpayer, your donation may qualify for Gift Aid, which allows the charity to claim an extra 25p for every 1 pound you donate at no cost to you. Higher-rate and additional-rate taxpayers can also claim additional relief on their Self Assessment tax return.

Verified against 4 official sources, last refreshed .

Annual revenue
£1M-£10M
100% to programs
Source: Charity Commission (UK) (FY2024) why this matters
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Filing history

2 years on file from Charity Commission (UK) (FY2024): revenue, expenses, program spending, assets, and liabilities by fiscal year.

Years on record: FY2024, FY2023.
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Taxes

Tax-deductibility for donors

UK donations qualify for Gift Aid. TREEBEARD TRUST is registered with the Charity Commission. Eligible UK taxpayers can boost their gift by 25% at no extra cost.

Always confirm tax treatment with the charity directly or your tax advisor before donating.

Leadership

AN
Andrew Purvis
Trustee

Officers & trustees (5)

Source: Public filings

AN
Andrew P•••••
Trustee
BA
Barnaby W•••••
Trustee
DR
Dr C•••••••• W•••••
Trustee
EL
Elisabeth B••••••
Trustee
MI
Michael M••••
Trustee
Full names, contact details & compensation

Free with an account.

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Latest news

From global news sources

5 articles found

From global news sources

Sentiment

Neutral

Activity timeline

Filings and press mentions, merged

How the Sociability app puts accessibility on the map to help disabled people break down barriers - Big Issue
May 2026
www.bigissue.com
Form filed
£3.1M revenue
FY2024
CCEW
NatWest SE100 Social Business Awards 2024 finalists announced - Pioneers Post
Jun 2024
www.pioneerspost.com
Form filed
£0.3M revenue
FY2023
CCEW
Conrad Koslowsky makes a cosy children’s home for Lighthouse Pedagogical Trust - Royal Institute of British Architects J
Dec 2022
www.ribaj.com
Impact investing in the endowment: Why do it and how to get started - Alliance magazine
Jun 2022
www.alliancemagazine.org
What happens to the rest of it? How foundations make investments - Alliance magazine
May 2017
www.alliancemagazine.org

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Peer charities

Other environment in United Kingdom, by integrity assessment

Charity Score Revenue Program %
Treebeard Trust This page 71 £3.1 million 100%
Bronte Youth & Community Centre 89 £1.9 million 100%
Freshwater Habitats Trust 89 £2.8 million 99%
Forest of Dean Crossroads Caring for Carers 89 £1.9 million 100%
Thames21 Limited 89 £3.2 million 94%
New Economics Foundation 88 £5.0 million 95%
The Naval Children's Charity 87 £1.5 million 96%
The Lifescape Project Limited 87 £1.1 million 94%
Age Concern Bromley 87 £2.2 million 99%

Sources and verification

Refreshed

Registration and legal identity
Charity Commission for England and Wales - Register of Charities
Financial filings
Charity Commission annual returns - Fiscal year 2024 most recent on file.
Officers and trustees
Charity Commission for England and Wales - Register of Charities - 5 disclosed in the public registry.
News and media coverage
GDELT Project + Google News

Data freshness

Last updated
Mar 25, 2026
Profile completeness
85%

What we don't know

Honest gaps - our score reflects transparency, not impact

Executive compensation
Top-officer pay not disclosed
Mission statement
No self-published statement of purpose
Programs & projects
No named programs listed by the charity
Headquarters address
No street address on file
Operating reach
Countries where programs run not specified
Programmatic detail
Specific cause areas not yet tagged

Methodology

GiveRadar combines public registry filings, ProPublica Nonprofit Explorer, Charity Navigator, GuideStar, and news archives into a single 0-100 integrity assessment. We don't take a cut of any donation, ever.

Read full methodology

Quick facts about Treebeard Trust

What is Treebeard Trust?
Treebeard Trust is a environment nonprofit organization, United Kingdom. Treebeard Trust is a charitable foundation set up by Barnaby and Cassandra Wiener in 2011. Our mission is to support transformational initiatives which have the potential to create a healthier planet and fairer society.
When was Treebeard Trust founded?
Treebeard Trust was founded in 2022.
Where is Treebeard Trust located?
Headquartered in United Kingdom.
What is Treebeard Trust's annual budget?
Annual revenue for fiscal year 2024 is approximately £1M-£10M. 100% of expenses go to program services.
Is Treebeard Trust trustworthy?
Treebeard Trust has a GiveRadar Integrity Assessment of 71 out of 100 (Strong transparency). The score reflects public-data transparency: registration, financial disclosure, governance, contact details, and how recently data was refreshed. It does not measure program impact.
What is Treebeard Trust's registration number?
Registration: 1200102 (United Kingdom).
What is Treebeard Trust's website?
https://www.treebeardtrust.org
Are donations to Treebeard Trust tax-deductible?
Donations may be tax-deductible for residents of United Kingdom under local rules. US donors should check whether the charity has an equivalency-determination letter or a US-based fiscal sponsor before claiming a deduction.