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Friends Group · National Park

Friends of Acadia

“Preserve, protect, and promote stewardship of Acadia National Park and surrounding communities.”

1 funder on the record, 83 cents of every dollar to the work.

Home groundBar Harbor, ME
Founded1986
Tax status501(c)(3)
Led byEric Stiles

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The work

What they do

Land acquisition, trail maintenance, volunteer coordination, advocacy, and philanthropic support for Acadia National Park. One of the most effective friends groups in the NPS system.

Where the money went, FY2025

The work, and what it cost

Additionally, Friends of Acadia contributes to a variety of

$10.6M, 78% of spending

Additionally, Friends of Acadia contributes to a variety of community outreach events such as the Earth Day Roadside Clean-up and Soil to the Summits hikes.

Including $6,707,398 granted onward, most of it ($6,124,404) to Acadia National Park.

Read it as they filed it
Additionally, Friends of Acadia contributes to a variety of community outreach events such as the Earth Day Roadside Clean-up and Soil to the Summits hikes. In partnership with Acadia National Park, Friends implements and contributes to other programs including the Summit Stewards, the Wild Garden of Acadia, the Recreation Technicians, the Acadia Winter Trails Association, the Island Explorer, invasive plant eradication, the peregrine falcon and hawk watch program, Acadia Teacher Fellows Program, water quality monitoring, rehabilitation of historic buildings, and a volunteer program that typically contributes over 5,000 hours of time per year to help maintain Acadia's trails and carriage roads. FOA continues to help ANP address the ongoing seasonal employee housing shortage. In 2025, construction continued at Harden Farm, an ANP project that FOA contributed an additional $4.5 million to help complete, adding to the $7M contributed during 2024. Phase One, 28 new one bedroom and studio apartments, was completed, and Phase Two, another 28 one bedroom and studio apartments, was initiated. Solar panels were installed at FOA's seasonal housing complex in Trenton, Maine with a potential energy savings of nearly $600,000 over 25 years. FOA also secured funding to install solar panels at Harden Farm with a potential energy savings of $300,000 during its lifetime. 2025 welcomed inaugural residents at the newly completed Dane Farm complex in Seal Harbor, Maine, housing eight seasonal employees for ANP.

IRS Form 990 Part III, fiscal year 2025, signed under penalty of perjury.

$565K, 4% of spending

Friends of Acadia makes grants from its Acadia Trails Forever project fund to the ANP trails program to maintain the park’s 153 miles of trails.

Including $488,240 granted onward.

Read it as they filed it
Friends of Acadia makes grants from its Acadia Trails Forever project fund to the ANP trails program to maintain the park's 153 miles of trails. In 2025, the Trail crew undertook significant repairs to the Hunters Beach Trail and the North and South Bubble Trails. They also completed the rehabilitation of the Bubbles Divide Trail and worked with volunteers to install 500 feet of raised cedar boardwalk along the Hemlock Path, restoring natural water flow through the Great Meadow. They built two stone staircases and improved drainage along the Valley Peak Trail and completed additional sections of the Great Meadow Loop.

IRS Form 990 Part III, fiscal year 2025, signed under penalty of perjury.

The Carriage Road maintenance grants help to make possible

$114K, 1% of spending

The Carriage Road maintenance grants help to make possible the salaries of several Acadia National Park workers and interns who perform regular maintenance of the park’s 44 miles of historic carriage roads.

Including $101,212 granted onward.

Read it as they filed it
The Carriage Road maintenance grants help to make possible the salaries of several Acadia National Park workers and interns who perform regular maintenance of the park's 44 miles of historic carriage roads. In 2025, the carriage road crew repaired washouts, graded 5 miles of carriage roads, and spread 150 tons of surface materials. They cleaned four miles of road ditches and, flushed culverts. They surveyed 138 of the documented vistas on the carriage roads and worked to clear 43 of those, including supervising volunteers who worked on 12 vistas.

IRS Form 990 Part III, fiscal year 2025, signed under penalty of perjury.

Follow the dollar

83 cents of every dollar goes to the work

83¢
83¢ the work8¢ keeping the lights on9¢ raising the next dollar

A good sign, not a scorecard: what matters is the extremes, and this is nowhere near one.

$11,270,956 programs, $1,071,177 management, $1,265,332 fundraising. Form 990, FY2025.

The backers

Backed on the record by William & Flora Hewlett Foundation, latest filing FY24.

The people

Who does the work

40paid staff
746volunteers last year
24board members
Eric StilesPresident & CEOComp $259,687, FY2025
Megan LoomerVice President of Finance & CFOComp $189,385, FY2025
Lisa Horsch ClarkVice President of DevelopmentComp $160,998, FY2025
William C EachoBoard ChairVolunteer, 1 hrs a week, $0

Chairs the 24-member board.

Honesty note: leadership comes from each year’s federal filing, so it can run a year behind. If it’s out of date, tell us. Work at Friends of Acadia? Claim this page.

Those 746 volunteers are people who decided this ground was theirs to defend. If Friends of Acadia is fighting for your place too, the matchmaker will find your way in.

Find your way in

The filings

14 years of filings

Total revenue by fiscal year, as filed. Point at or tap the line for any year.

$10M$20M$12.7M FY2520112025
Total revenue by fiscal year
YearRevenue
2011$2,525,669
2012$3,681,601
2013$6,058,660
2014$6,169,805
2015$23,218,469
2016$7,995,364
2017$7,232,104
2018$10,029,886
2019$7,397,207
2020$4,546,098
2021$9,023,767
2022$7,595,646
2023$15,284,443
2025$12,663,310

From $2.5M in 2011 to $12.7M in FY25, across 14 public filings (none on record for 2024). 2015, at $23.2M, stands well above the other years on file.

Their ground

Friends of Acadia is not on our editors’ record for a threatened place yet. See every threatened place on one map, and who stands for each.

Where and what
Federal landsNational Park Service
Active inMaine
Who writes the rules where they work

The Maine congressional delegation averages 64 of 100 on public lands. See the full scorecard

Ways in

How to help

Stand with Friends of Acadia

The mission is theirs. The backing is yours.

Sources and methodFinancials, headcounts, and program text: IRS Form 990, FY2025 and 13 prior filings via ProPublica Nonprofit Explorer, EIN 01-0425071. Leadership and compensation: Form 990 Part VII and the return’s signature block, FY2025 filing. Grantees: Schedule I, same filing. Funders: the funders’ own returns (Schedule I and 990-PF Part XV) via ProPublica, names and years only. Org-reported figures are always labeled. Data verified as of 2026-09-23. Nothing on this page is pay-to-play.