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The Treeline Conservancy

TO FOSTER THE CREATION AND SUSTAINABLE MAINTENANCE OF A 2.75-MILE URBAN TRAIL THAT BECOMES AN INTEGRAL CONNECTOR OF PEOPLE AND PLACES IN ANN ARBOR. THE TRAIL WILL BRING …

Environment Ann Arbor, MI EIN: 432091401 (IRS) Sign up to see website
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70
Integrity Assessment
Strong transparency
70/100 · methodology

About The Treeline Conservancy

The Treeline is an urban trail connecting the best of Ann Arbor. It will be a defining feature of our geography, providing a common place to explore, bike, run, and reconnect with nature—and each other.

Founded
Headquarters
Ann Arbor, MI
Foundation type
Publicly-supported charity (509(a)(2))
NTEE code
C50
IRS subsection
501(c)(03)
Ruling date
Size
medium

Verified certifications

Confirmed against the issuing authority - not self-reported.

IRS Tax-Deductible since 2007

Mission

To foster the creation and sustainable maintenance of a 2.75-mile urban trail that becomes an integral connector of people and places in ann arbor. The trail will bring access to ann arbor's river and park system through the heart of downtown along the alignment of historic allen creek; provide safe passage and recreation from the border-to-border trail at argo dam to the um stadium area; invite community gathering and engagement with natural and cultural features; benefit current and future generations by providing positive economic impact, improved aesthetics, enriched community engagement, and improved stormwater quality.

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: 33%
Peer average: 72%
CEO comp as % of revenue This charity: 71.90%
Peer average: 0.48%
Integrity Assessment This charity: 70
Peer average: 90

Concerns

· 1 red flag
High Executive Pay
Top executive compensation is 36.2% of total expenses ($106,000 of $292,973).

Where every $1 goes

· FY2024 · IRS 990 (FY2024)
$0.33
Program$0.33

GiveRadar Analysis

Original analysis from GiveRadar's dataset of comparable organizations

From what GiveRadar has verified so far, The Treeline Conservancy has a complete profile, cross-referenced across 3 independent sources including the IRS.

  • It has more complete contact information than nearly all similar organizations, with a verified website, email, phone and address on record. See national comparisons
  • It has more complete governance disclosure than nearly all similar organizations, because GiveRadar has verified leadership, executive compensation, a mission statement and a founding date. See national comparisons
  • GiveRadar's profile for The Treeline Conservancy draws on its financial disclosures and its governance, in line with the typical environment charities in the United States it tracks. View this cohort
GiveRadar has verified
  • government registration
  • financial records (5 filed years)
  • disclosed leadership
  • a website
  • a contact email
  • a donation page
Not yet verified by GiveRadar
  • 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

The Treeline Conservancy is a registered environment nonprofit based in Ann Arbor, MI, United States. It is registered with the Internal Revenue Service (IRS). It was founded in 2007 and has been operating for 19 years. Its EIN is 432091401. 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 70/100, which reflects how much public information is available, not whether the charity is legitimate. The organization reports $147K in annual revenue. 37 officers and directors are publicly disclosed. GiveRadar has identified 1 potential concern.

The Treeline Conservancy's EIN (Employer Identification Number) is 432091401. 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.

The Treeline Conservancy has a GiveRadar Integrity Assessment of 70/100. 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 70 ('Strong transparency') reflects well-documented governance, recent financials, named leadership, and working contact details. For comparison, the average integrity assessment for environment charities in United States is 90/100.

The Treeline Conservancy is located in Ann Arbor, MI, United States. The organization was established in 2007 and has been active for 19 years. Its registered address is 535 W William St, United States.

Based on official tax filings, The Treeline Conservancy has $147K in annual revenue. It allocates 33% of expenses to programs and services. This is below the average of 72% for environment charities in United States. Its revenue is below the peer average of $2M. Create a free GiveRadar account to view the complete financial breakdown with year-over-year trends.

The Treeline Conservancy 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 medium organization. It has $147K in annual revenue. The organization has 37 disclosed officers and directors.

GiveRadar has identified 1 potential concern for The Treeline Conservancy. Red flags are automatically detected from official data and may include high executive compensation relative to budget, low program spending, or missing financial filings. Red flags do not necessarily mean wrongdoing but indicate areas that may warrant further review before donating.

According to GiveRadar's records, The Treeline Conservancy 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 33% of expenses go to programs (the peer average is 72%). You can donate directly through their official donation page linked on their GiveRadar profile. 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.

The Treeline is an urban trail connecting the best of Ann Arbor. It will be a defining feature of our geography, providing a common place to explore, bike, run, and reconnect with nature—and each other. The Treeline Conservancy is classified as an environment organization registered in United States. The organization was founded in 2007.

Among environment charities registered in United States: It allocates 33% of expenses to programs, below the peer average of 72%. Its annual revenue of $147K is below the peer average of $2M.

Yes, donations to The Treeline Conservancy are generally tax-deductible in the United States. The Treeline Conservancy is a 501(c)(3) tax-exempt organization. Its EIN is 432091401, 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
$100K-$1M
33% to programs
Source: IRS 990 (FY2024) why this matters
Unlock exact figures

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.
Financial details are free - with a GiveRadar account

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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
4

Leadership

From FY2024 filing

EL
Ellen P••••••
EXECUTIVE DIRECTOR

Officers & trustees (13)

Source: Public filings

See full names, roles, and stories

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

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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
$0.1M revenue
FY2024
IRS 990
Form filed
$0.2M revenue
FY2023
IRS 990
Form filed
$0.4M revenue
FY2022
IRS 990
Form filed
$0.7M revenue
FY2021
IRS 990
Form filed
$0.2M revenue
FY2020
IRS 990

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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 2024 most recent on file.
Officers and trustees
Internal Revenue Service (IRS) - Tax Exempt Organization Search - 37 disclosed in the public registry.
Supplementary verification
Charity Navigator

Data freshness

Last updated
Jun 12, 2026
Registry checked
Jun 6, 2026
Profile completeness
90%

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 · FY2024 on record
  • Named leadership · 37 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 · 2007
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 The Treeline Conservancy

What is The Treeline Conservancy?
The Treeline Conservancy is a environment publicly-supported charity (509(a)(2)) based in Ann Arbor, United States. The Treeline is an urban trail connecting the best of Ann Arbor. It will be a defining feature of our geography, providing a common place to explore, bike, run, and reconnect with nature—and each other.
When was The Treeline Conservancy founded?
The Treeline Conservancy was founded in 2007.
Who leads The Treeline Conservancy?
Ellen Plummer serves as EXECUTIVE DIRECTOR.
Where is The Treeline Conservancy located?
Headquartered in Ann Arbor, MI, United States.
What is The Treeline Conservancy's annual budget?
Annual revenue for fiscal year 2024 is approximately $100K-$1M. 33% of expenses go to program services.
Is The Treeline Conservancy trustworthy?
The Treeline Conservancy has a GiveRadar Integrity Assessment of 70 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 The Treeline Conservancy's registration number?
IRS EIN: 432091401.
What is The Treeline Conservancy's website?
https://www.thetreeline.org