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Trustees of Reservations

Preserve, for public use & enjoyment, places of exceptional scenic, historical, ecol. Value.

Environment Boston, MA EIN: 042105780 (IRS) Sign up to see website
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87
Integrity Assessment
Strong transparency
87/100 · methodology

About Trustees of Reservations

Preserving exceptional places. The Trustees of Reservations is here to protect and share the Massachusetts places people love.

Founded
Headquarters
Boston, MA
Foundation type
Publicly-supported charity (509(a)(2))
NTEE code
C340
IRS subsection
501(c)(c3)
Ruling date
Size
major

Verified certifications

Confirmed against the issuing authority - not self-reported.

IRS Tax-Deductible since 1935

Mission

Preserve, for public use & enjoyment, places of exceptional scenic, historical, ecol. Value.

Focus areas & reach

· What they work on and where

How it stacks up against peers

· vs. 8 similar environment in United States
Program spending This charity: 78%
Peer average: 88%
CEO comp as % of revenue This charity: 0.69%
Peer average: 0.48%
Integrity Assessment This charity: 87
Peer average: 90

Concerns

· None found
No red flags found
Screened for IRS revocation history, Open investigations, Governance scandals, Related-party deals, Excessive exec comp.

Where every $1 goes

· FY2025 · IRS 990 (FY2025)
$0.78
Program$0.78
78% to programs beats the Charity Navigator "highly efficient" threshold (75%).

GiveRadar Analysis

Original analysis from GiveRadar's dataset of comparable organizations

Based on the records currently verified by GiveRadar, Trustees of Reservations has a complete profile, cross-referenced across 4 independent sources including the IRS.

  • Established in 1891, it is among the oldest environment charities in the United States GiveRadar tracks. View this cohort
  • GiveRadar has verified more about this organization than about 99% of the 30,143 environment charities in the United States it tracks, because GiveRadar has verified its financial disclosures and its governance. Most of those have little verified data on record yet. View this cohort
  • By reported annual revenue, it is larger than 97% of the 13,369 environment charities in the United States with financial records on GiveRadar. See the filings
GiveRadar has verified
  • government registration
  • financial records (6 filed years)
  • disclosed leadership
  • a website
  • third-party accreditation
Not yet verified by GiveRadar
  • a contact email
  • a donation page
  • an owner-submitted profile claim

Analysis based on GiveRadar's benchmark dataset of 2026-07-03. It describes what GiveRadar has verified, not a judgment of the organization itself.

Common questions

· Auto-generated from filings + methodology

Trustees of Reservations is a registered environment nonprofit based in Boston, MA, United States. It is registered with the Internal Revenue Service (IRS). It was founded in 1891 and has been operating for 135 years. Its EIN is 042105780. According to GiveRadar's records, it holds active tax-deductible status on the IRS Publication 78 list, which means donations are tax-deductible and the organization is in good standing with the IRS. GiveRadar's Integrity Assessment for the organization is 87/100, which reflects how much public information is available, not whether the charity is legitimate. The organization reports $58M in annual revenue. 163 officers and directors are publicly disclosed. No red flags have been detected.

Trustees of Reservations's EIN (Employer Identification Number) is 042105780. This is the organization's IRS tax identification number; you can use it to verify tax-exempt status and to look up its Form 990 filings with the IRS.

Trustees of Reservations has a GiveRadar Integrity Assessment of 87/100. 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 87 ('Strong transparency') reflects well-documented governance, recent financials, named leadership, and working contact details. The charity allocates 78% of expenses to programs, which contributes positively to its score. For comparison, the average integrity assessment for environment charities in United States is 90/100.

Trustees of Reservations is located in Boston, MA, United States. The organization was established in 1891 and has been active for 135 years.

Based on official tax filings, Trustees of Reservations has $58M in annual revenue. It allocates 78% of expenses to programs and services. This is below the average of 88% for environment charities in United States. Its revenue is significantly above the peer average of $2M. Create a free GiveRadar account to view the complete financial breakdown with year-over-year trends.

Trustees of Reservations is classified as an Environment organization, registered in United States. It operates as a Publicly-supported charity (509(a)(2)). By size, it is categorized as a major organization. It has $58M in annual revenue. The organization has 163 disclosed officers and directors.

No red flags have been detected for Trustees of Reservations. 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.

According to GiveRadar's records, Trustees of Reservations holds active tax-deductible status on the IRS Publication 78 list, which means donations are tax-deductible and the organization is in good standing with the IRS. It is registered with the Internal Revenue Service (IRS). It reports that 78% of expenses go to programs (the peer average is 88%). GiveRadar provides data for research and does not endorse any organization. A GiveRadar Integrity Assessment reflects how much public data is available, not whether an organization is safe to donate to, so it is always smart to do your own research before giving.

Preserving exceptional places. The Trustees of Reservations is here to protect and share the Massachusetts places people love. Trustees of Reservations is classified as an environment organization registered in United States. The organization was founded in 1891.

Among environment charities registered in United States: It allocates 78% of expenses to programs, below the peer average of 88%. Its annual revenue of $58M is well above the peer average of $2M.

Yes, donations to Trustees of Reservations are generally tax-deductible in the United States. Its EIN is 042105780, which you can use for tax filing purposes. Donors can typically deduct contributions on their federal income tax return if they itemize deductions. Consult a tax professional for guidance specific to your situation.

Annual revenue
$10M-$100M
78% to programs
Source: IRS 990 (FY2025) why this matters
Unlock exact figures

Filing history

6 years on file from IRS 990 (FY2025): revenue, expenses, program spending, assets, and liabilities by fiscal year.

Years on record: FY2025, FY2024, FY2023, FY2022, FY2021, FY2020.
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Taxes

Tax-deductibility for donors

Donations may be tax-deductible for residents of United States under local rules. Confirm with the charity directly.

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

Staff & volunteers

From filings and published profiles

Employees
976

Leadership

From FY2025 filing

BR
Brian T•••••••
Chief Financial Officer

Officers & trustees (25)

Source: Public filings

See full names, roles, and stories

25 officers and trustees on file - free with a GiveRadar account.

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Latest news

From global news sources

10 articles found

From news sources and the organization. Shown for transparency; news never affects the integrity score.

Activity timeline

Filings and press mentions, merged

Form filed
$57.9M revenue
FY2025
IRS 990
Form filed
$64.9M revenue
FY2024
IRS 990
Form filed
$50.5M revenue
FY2023
IRS 990
Trustees of Reservations Within Sight of Goal to Acquire 180-Acre Millborn Farm in Sherborn and Millis - Westwood Minute
Dec 2023
westwoodminute.town.news
Trustees of Reservations seeks $14.4 million to buy Millborn Farm in Sherborn and Millis - The Boston Globe
Oct 2023
www.bostonglobe.com
Form filed
$79.9M revenue
FY2022
IRS 990
Form filed
$88.4M revenue
FY2021
IRS 990
Trustees of Reservations taps John Judge as its next chief executive - The Boston Globe
Dec 2021
www.bostonglobe.com
Trustees of Reservations announce Halloween on the Hill - Wicked Local
Sep 2021
www.wickedlocal.com
Form filed
$44.8M revenue
FY2020
IRS 990
Edgartown Terminates Its Lease With Trustees at Katama Farm - The Vineyard Gazette
Aug 2020
vineyardgazette.com
Woods-McNish joins Trustees of Reservations - Dorchester Reporter
Jun 2020
www.dotnews.com
Audubon, Trustees of Reservations close all trails due to coronavirus - SouthCoastToday.com
Mar 2020
www.southcoasttoday.com
Trustees of Reservations Hire New Manager - The Vineyard Gazette
Dec 2017
vineyardgazette.com
Hayden 'connects' to Trustees of Reservations' Charles River Valley properties - Wicked Local
May 2017
www.wickedlocal.com
Trustees of Reservations hires manager for Provincetown camp - Cape Cod Times
Mar 2017
www.capecodtimes.com

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Cause areas in United States

How many charities work in each area, with this charity's area highlighted.

Human Services 322,679
Education 195,586
Arts & Culture 133,128
Advocacy & Civil Rights 128,026
Religion 114,636
Health 98,862
Community Development 56,086
Youth Development 53,450
Environment this charity 30,143
See all cause areas in United States

Most common causes in United States

Causes charities work on most.

Community Development 235,146
Education 159,016
Religion 103,741
Arts & Culture 101,203
Human Rights 76,926
Health 65,250
Youth Development 47,775
Animal Welfare 32,425

Sources and verification

Registration and legal identity
Internal Revenue Service (IRS) - Tax Exempt Organization Search
Financial filings
IRS Form 990 filings - Fiscal year 2025 most recent on file.
Officers and trustees
Internal Revenue Service (IRS) - Tax Exempt Organization Search - 163 disclosed in the public registry.
News and media coverage
GDELT Project + Google News
Supplementary verification
Charity Navigator

Data freshness

Last updated
Jun 12, 2026
Registry checked
Jun 6, 2026
Profile completeness
100%

What we know and don't know

Exactly which public data we hold on this charity. Our score reflects transparency, not impact.

On record · 10
  • Financial data · FY2025 on record
  • Named leadership · 163 officers on file
  • Executive pay · Disclosed
  • Government registration · Registered with an official registry
  • Mission statement · Published
  • Official website · On record
  • Headquarters address · On file
  • Direct contact · Email or phone published
  • Tax-deductibility · Verified
  • Founding date · 1891
Not available · 1
  • Programs & activities
    No named programs listed by the charity

Methodology

GiveRadar builds each profile primarily from official government charity registries, supplemented where available by third-party nonprofit databases and news archives, and combines it into a single 0-100 integrity assessment. The exact sources for this charity are listed above. We don't take a cut of any donation, ever.

Read full methodology

Are you the owner or a board member?

If you represent this organization and want to correct or update its data, you can claim this listing to edit details yourself, or email [email protected] with the correct information. We review every request and respond within 30 days.

Quick facts about Trustees of Reservations

What is Trustees of Reservations?
Trustees of Reservations is a environment publicly-supported charity (509(a)(2)) based in Boston, United States. Preserving exceptional places. The Trustees of Reservations is here to protect and share the Massachusetts places people love.
When was Trustees of Reservations founded?
Trustees of Reservations was founded in 1891.
Who leads Trustees of Reservations?
Brian Therrien serves as Chief Financial Officer.
Where is Trustees of Reservations located?
Headquartered in Boston, MA, United States.
What is Trustees of Reservations's annual budget?
Annual revenue for fiscal year 2025 is approximately $10M-$100M. 78% of expenses go to program services.
Is Trustees of Reservations trustworthy?
Trustees of Reservations has a GiveRadar Integrity Assessment of 87 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 Trustees of Reservations's registration number?
IRS EIN: 042105780.
What is Trustees of Reservations's website?
http://www.thetrustees.org