---
title: "Top rated UK Environmental charities — Clarity Score…"
description: "Highest-rated UK environmental charities ranked by CharityCompare Clarity Score."
source: https://www.charitycompare.org.uk/top-rated/environment
retrieved: 2026-10-06T10:44:28.230Z
date_note: "Retrieval time is not the filing, register-extract or editorial-review date; cite those dates from the content."
license: "Charity data © Crown copyright, Open Government Licence v3.0"
---

Category Leaderboard

# Top rated UK environmental charities

Compare environmental charities working on nature conservation, habitat restoration and environmental change. Look beyond activity totals to location, long-term care and ecological evidence. Ranked by overall Clarity Score (0–100) based on financial returns and regulatory compliance.

[Compare charities](https://www.charitycompare.org.uk/compare-charities) [All environmental charities](https://www.charitycompare.org.uk/charities/environment)

Quick answer

The highest Clarity Scores for environmental charities in our directory are listed below. Scores combine charitable spend efficiency, regulatory return filing history, and public transparency disclosures. Information only, not donation advice.

## Top 10 environmental charities by Clarity score

- 1 [BO Board of Deputies Charitable Foundation £1.9m · Local Give with confidence 100/100 ★★★★★](https://www.charitycompare.org.uk/charity/board-of-deputies-charitable-foundation)

Efficiency Excellent 90% to cause

Governance On Time CCEW return status

Transparency Verified 5 trustees

Reserves 11.0 Mo Financial cushion

- 2 [EV Erlas Victorian Walled Garden £603k · Wrexham 100/100 ★★★★★](https://www.charitycompare.org.uk/charity/erlas-victorian-walled-garden)

Efficiency Unscored Filings pending

Governance On Time CCEW return status

Transparency Verified 4 trustees

Reserves 11.0 Mo Financial cushion

- 3 [EA Essex and Suffolk Rivers Trust £963k · Ipswich 100/100 ★★★★★](https://www.charitycompare.org.uk/charity/essex-and-suffolk-rivers-trust)

Efficiency Unscored Filings pending

Governance On Time CCEW return status

Transparency Verified 10 trustees

Reserves 3.0 Mo Financial cushion

- 4 [HC Hartlebury Castle Preservation Trust £612k · Dudley 100/100 ★★★★★](https://www.charitycompare.org.uk/charity/hartlebury-castle-preservation-trust)

Efficiency Unscored Filings pending

Governance On Time CCEW return status

Transparency Verified 9 trustees

Reserves 7.0 Mo Financial cushion

- 5 [OC Orison Charitable Trust £2.8m · UK-wide Give with confidence 100/100 ★★★★★](https://www.charitycompare.org.uk/charity/orison-charitable-trust)

Efficiency Excellent 97% to cause

Governance On Time CCEW return status

Transparency Verified 3 trustees

Reserves 5.0 Mo Financial cushion

- 6 [TB The Brothers of the First Order of the Society of St Francis £1.3m · UK-wide Give with confidence 100/100 ★★★★★](https://www.charitycompare.org.uk/charity/the-brothers-of-the-first-order-of-the-society-of-st-francis)

Efficiency Excellent 99% to cause

Governance On Time CCEW return status

Transparency Verified 13 trustees

Reserves 9.0 Mo Financial cushion

- 7 [TG The Guide Association London and South East England Region £1.2m · Local Give with confidence 100/100 ★★★★★](https://www.charitycompare.org.uk/charity/the-guide-association-london-and-south-east-england-region)

Efficiency Excellent 100% to cause

Governance On Time CCEW return status

Transparency Verified 12 trustees

Reserves 19.0 Mo Financial cushion

- 8 [TW The Wey and Arun Canal Trust Limited £816k · Reigate Give with confidence 100/100 ★★★★★](https://www.charitycompare.org.uk/charity/the-wey-and-arun-canal-trust-limited)

Efficiency Excellent 91% to cause

Governance On Time CCEW return status

Transparency Verified 9 trustees

Reserves 9.0 Mo Financial cushion

- 9 [UO UK Overseas Territories Conservation Forum £577k · UK-wide 100/100 ★★★★★](https://www.charitycompare.org.uk/charity/uk-overseas-territories-conservation-forum)

Efficiency Unscored Filings pending

Governance On Time CCEW return status

Transparency Verified 11 trustees

Reserves 13.0 Mo Financial cushion

- 10 [1R 13 Rivers Trust £2.9m · UK-wide Give with confidence 99/100 ★★★★★](https://www.charitycompare.org.uk/charity/13-rivers-trust)

Efficiency Excellent 81% to cause

Governance On Time CCEW return status

Transparency Verified 4 trustees

Reserves 15.0 Mo Financial cushion

Scores combine Accountability & Finance and Transparency beacons.
[How we score](https://www.charitycompare.org.uk/methodology)