Charities United States Science & Technology Society for Wilderness Stewardship
Society for Wilderness Stewardship logo

Society for Wilderness Stewardship

The mission of the society for wilderness stewardship is to advance the profession of wilderness stewardship to ensure the life-sustaining benefits of wilderness. As a member-based organization, we …

Science & Technology Missoula, MT EIN 202591129 · IRS Sign up to see website
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79
Integrity Assessment
Strong transparency
79/100 · methodology

About Society for Wilderness Stewardship

The Society for Wilderness Stewardship helps manage wilderness areas across the country and keeps the wilderness community connected.

Founded
Headquarters
Missoula, MT
Foundation type
Publicly-supported charity (509(a)(2))
NTEE code
U50
IRS subsection
501(c)(03)
Ruling date
Size
small

Verified certifications

Confirmed against the issuing authority - not self-reported.

IRS Tax-Deductible since 2005

Mission

The mission of the society for wilderness stewardship is to advance the profession of wilderness stewardship to ensure the life-sustaining benefits of wilderness. As a member-based organization, we seek to include a diversity of people dedicated to wilderness stewardship, including managers, scientists, educators, volunteers and non-government conservation staff members.

Focus areas & reach

· What they work on and where
Science & Technology · NTEE U50
Cause tags

How it stacks up against peers

· vs. 8 similar science & technology in United States
Program spending This charity: 0%
Peer average: 11%
CEO comp as % of revenue This charity: 6.84%
Peer average: 0.48%
Integrity Assessment This charity: 79
Peer average: 89

Red flags

· All clear
IRS revocation history
Open investigations
Governance scandals
Related-party deals
Excessive exec comp

Common questions

· Auto-generated from filings + methodology

Society for Wilderness Stewardship is a registered science & technology nonprofit based in Missoula, MT, United States. It is registered with the Internal Revenue Service (IRS). It was founded in 2005 and has been operating for 21 years. Its EIN is 202591129. It has a GiveRadar Integrity Assessment of 79/100 (Strong transparency), indicating well-documented governance, financials, and contact details. This is below the average of 89/100 for science & technology charities in United States. The organization reports $1M in annual revenue. 28 officers and directors are publicly disclosed. No red flags have been detected.

Society for Wilderness Stewardship has a GiveRadar Integrity Assessment of 79/100. 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 79 ('Strong transparency') reflects well-documented governance, recent financials, named leadership, and working contact details. For comparison, the average integrity assessment for science & technology charities in United States is 89/100.

Society for Wilderness Stewardship is located in Missoula, MT, United States. The organization was established in 2005 and has been active for 21 years.

Based on official tax filings, Society for Wilderness Stewardship has $1M in annual revenue. Its revenue is below the peer average of $14M. Create a free GiveRadar account to view the complete financial breakdown with year-over-year trends.

Society for Wilderness Stewardship is classified as a Science & Technology organization, registered in United States. It operates as a Publicly-supported charity (509(a)(2)). By size, it is categorized as a small organization. It has $1M in annual revenue. The organization has 28 disclosed officers and directors.

No red flags have been detected for Society for Wilderness Stewardship. 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.

Society for Wilderness Stewardship has a GiveRadar Integrity Assessment of 79/100 (Strong transparency) and no red flags have been detected, which suggests it is a well-documented organization. It is regulated by the IRS. You can donate directly through their official donation page linked on their GiveRadar profile. GiveRadar provides data for research purposes and does not endorse any organization. Always do your own due diligence.

The Society for Wilderness Stewardship helps manage wilderness areas across the country and keeps the wilderness community connected. Society for Wilderness Stewardship is classified as a science & technology organization registered in United States. The organization was founded in 2005.

Among science & technology charities registered in United States: Society for Wilderness Stewardship's GiveRadar Integrity Assessment of 79/100 is below the peer average of 89/100. Its annual revenue of $1M is below the peer average of $14M.

Yes, donations to Society for Wilderness Stewardship are generally tax-deductible in the United States. Society for Wilderness Stewardship is a 501(c)(3) tax-exempt organization. Its EIN is 202591129, 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.

Verified against 4 official sources, last refreshed .

Annual revenue
$1M-$10M
0% to programs
Source: IRS 990 (FY2024) why this matters
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Filing history

5 years on file from IRS 990 (FY2024): revenue, expenses, program spending, assets, and liabilities by fiscal year.

Years on record: 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.

Leadership

HE
Heather Macslarrow
Executive Director

Officers & trustees (10)

Source: Public filings

AL
Alex N•••••
VICE CHAIR
AN
Ann S••••••••
Director
HE
Heather M•••••••••
EXECUTIVE DIRECTOR
IA
Ian D•••••••
Director
JU
Justin P••••••••
CHAIR
LE
Leah Z•••••••
Director
NA
Nancy T•••••
Director
SA
Sandy S•••••
Director
SA
Sarah S••••
TREASURER
ST
Steve K••••••
Director
Full names, contact details & compensation

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Latest news

From global news sources

No recent news coverage found

News coverage will appear here when articles mention this organization.

Activity timeline

Filings and press mentions, merged

Form filed
$1.9M revenue
FY2024
IRS_990
Form filed
$1.5M revenue
FY2023
IRS_990
Form filed
$0.6M revenue
FY2022
IRS_990
Form filed
$0.7M revenue
FY2021
IRS_990
Form filed
$0.8M revenue
FY2020
IRS_990

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Peer charities

Other science & technology in United States, by integrity assessment

Charity Score Revenue Program %
Society for Wilderness Stewardship This page 79 $1.5 million -
Bioinnovations Institute 89 $1.3 million 91%
Collaborative for Leadership in Ayres Sensory Integration 89 $1.8 million -
Blue Marble Space 89 $5.1 million -
Corrim Consortium for Research on Renewable Industrial Materials 89 $2.4 million -
Freshwater Society 89 $1.4 million 0%
Sigma Xi the Scientific Research Honor Society Inc 89 $4.9 million -
Mind Research Institute Inc 89 $5.7 million -
Science Communication Lab Inc 89 $2.2 million -

Sources and verification

Refreshed

Registration and legal identity
Internal Revenue Service (IRS) - Tax Exempt Organization Search
Financial filings
IRS Form 990 filings - Fiscal year 2024 most recent on file.
Officers and trustees
Internal Revenue Service (IRS) - Tax Exempt Organization Search - 28 disclosed in the public registry.
Supplementary verification
Charity Navigator

Data freshness

Last updated
May 27, 2026
Profile completeness
90%

What we don't know

Honest gaps - our score reflects transparency, not impact

Programs & projects
No named programs listed by the charity
Operating reach
Countries where programs run not specified

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 Society for Wilderness Stewardship

What is Society for Wilderness Stewardship?
Society for Wilderness Stewardship is a science & technology publicly-supported charity (509(a)(2)) based in Missoula, United States. The Society for Wilderness Stewardship helps manage wilderness areas across the country and keeps the wilderness community connected.
When was Society for Wilderness Stewardship founded?
Society for Wilderness Stewardship was founded in 2005.
Who leads Society for Wilderness Stewardship?
Heather Macslarrow serves as Executive Director.
Where is Society for Wilderness Stewardship located?
Headquartered in Missoula, United States.
What is Society for Wilderness Stewardship's annual budget?
Annual revenue for fiscal year 2024 is approximately $1M-$10M. 0% of expenses go to program services.
Is Society for Wilderness Stewardship trustworthy?
Society for Wilderness Stewardship has a GiveRadar Integrity Assessment of 79 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 Society for Wilderness Stewardship's registration number?
IRS EIN: 202591129.
What is Society for Wilderness Stewardship's website?
http://www.wildernessstewardship.org