Skip to content

Massachusetts · Nonprofit

MASSACHUSETTS AUDUBON SOCIETY INC

MASSACHUSETTS AUDUBON SOCIETY INC (Massachusetts) receives grants from 371 organizations whose IRS filings report $54,841,843 to it, the largest being FIDELITY INVESTMENTS CHARITABLE GIFT FUND ($12,216,512). 245 of them have funded it in more than one year.

Revenue FY2025
$56M
Funders on record
371
Grants received
$55M
Net assets
$389M
245/371 repeat funderspeak grant-dependency 34%
01What it does

What Massachusetts Audubon Society Inc does

Mission

To protect the nature of massachusetts for people and for wildlife through education, land conservation, advocacy, scientific research, and habitat stewardship/restoration.

As stated on its FY2025 Form 990.

Programs

  1. Mass audubon maintains 21 field offices and staffed wildlife sanctuaries (including 18 sanctuaries with nature centers, two of which are in urban areas) and an additional 50 unstaffed wildlife sanctuaries which are open for public visitation. Mass audubon sanctuaries serve as the base for nature and environmental education courses and programs, scientific research, ecological management, and other conservation-related activities. As of june 30, 2025, mass audubon protects 43,035 acres of open space in massachusetts, owning 34,130 and protecting the remaining 8,905 with conservation easements. These diverse protected habitats range from the berkshires to cape cod and the islands and help preserve the rich biodiversity of massachusetts. Mass audubon actively pursues both donations and purchases of additional conservation land and is the largest private conservation landowner in the state. Mass audubon also assists other land trusts and the commonwealth of massachusetts in acquiring conservation land and estimate these assists since 2001 have totaled more than 11,000 acres. An estimated 601,000 visitors came to enjoy mass audubon properties in fy 2025.mass audubon is also the largest…

    $36,470,275 spentof which $1,136,007 as grants$9,987,563 earned by the program
    82% of program spending
  2. In addition to the services provided by the network of sanctuaries and the education programming referred to above which are available to members and non-members alike, mass audubon members also enjoy a printed newsletter (explore) produced four times per year, a monthly e-newsletter (explorations), discounts on programs and at gift shops, and publications to increase public awareness of wildlife, nature, and environmental issues. In addition, the mass audubon website (www.massaudubon.org) offers a wide variety of information on mass audubon's sanctuaries, conservation efforts, land protection projects, advocacy issues, climate change work, and the natural world. Mass audubon also operates a gift shop in lincoln which sells merchandise related to nature, wildlife observation and environmental education to both members and non-members as well as a number of smaller nature-themed gift shops at many of the sanctuaries.

    $2,209,267 spent$151,051 earned by the program
    5% of program spending
  3. Mass audubon utilizes and develops scientific knowledge to support its longstanding tradition as an organization which uses science as the underpinning for its education, land protection, advocacy and habitat stewardship activities. Current research and/or ecological management work focuses on the protection, restoration, and stewardship of selected massachusetts habitats such as grasslands, coastal heathlands, retired cranberry bogs, and salt marshes. In addition, monitoring of key groups of organisms such as birds, amphibians, invertebrates and plants continues across the state in order to provide an important baseline to evaluate changing environmental conditions associated with climate change and land development. Mass audubon has also developed and implements an invasive species management strategy to protect the integrity of its lands as well as to provide guidance for other landowners throughout the state.mass audubon lands play a critical role in the delivery of its mission, and its land protection efforts focus on conserving ecologically significant tracts of land adjacent to existing wildlife sanctuaries, thereby protecting and enhancing their biological integrity and…

    $4,604,789 spent$686,391 earned by the program
    10% of program spending
  4. Key mass audubon advocacy accomplishments in fy 2025 include: 1. Massachusetts governor maura healey signed a sweeping climate and energy bill into law for which mass audubon had lobbied. This act promotes a clean energy grid, advances equity, and protects ratepayers and will provide much-needed reform to the state's approach to siting and permitting clean energy infrastructure. This is a big step forward for clean energy in massachusetts.2. Mass audubon launched the nature for massachusetts coalition, fighting for an increase in state investments for nature. The campaign kicked off with a state house launch event in support of the legislation, an act providing nature for all.3. Mass audubon also participated in state energy siting reform processes, with the goal of shifting incentives to put more solar projects on buildings and developed areas, and fewer large-scale projects in forests and on farms. This included mass audubon's appointment to the state's commission on energy infrastructure siting and permitting.4. Mass audubon's rescue raptors campaign to curb harmful rodent poisons continues to grow, with over 90 communities now organizing around the issue across the state. 36…

    $1,200,605 spent
    3% of program spending

The 4 programs described on its FY2024 Form 990, listed largest first by expense. Program spending in total: $44,484,936.

02The organization over time

The organization over time

Each line starts at 100 in 2017, so what you read is the shape rather than the size: 150 means half as much again as 2017, 50 means half. The number beside each label in the key is where it ended. The shaded band is where the middle 50% of its peers' revenue would sit, given their growth.

100 = 20172017 Revenue 100 ($28M) Expenses 100 ($29M) Net assets 100 ($243M)2018 Revenue 124 ($35M) Expenses 102 ($30M) Net assets 105 ($254M)2019 Revenue 172 ($48M) Expenses 111 ($33M) Net assets 113 ($276M)2020 Revenue 136 ($38M) Expenses 109 ($32M) Net assets 116 ($282M)2021 Revenue 134 ($38M) Expenses 97 ($29M) Net assets 139 ($338M)2022 Revenue 176 ($50M) Expenses 129 ($38M) Net assets 129 ($313M)2023 Revenue 173 ($49M) Expenses 155 ($46M) Net assets 136 ($330M)2024 Revenue 261 ($74M) Expenses 174 ($51M) Net assets 152 ($369M)2025 Revenue 199 ($56M) Expenses 183 ($54M) Net assets 160 ($389M)
'17'18'19'20'21'22'23'24'25
Revenue (199)Expenses (183)Net assets (160)Peer revenue range

Balance sheet

Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2020 to 2021, from $291M to $355M (+22%).

$254M
$265M
$294M
$291M
$355M
$326M
$343M
$381M
$402M
'17'18'19'20'21'22'23'24'25
Total assetsTotal liabilities

How it's funded, over time

Each bar is one year's revenue split into where it came from, and every bar is the same height — these are shares, not amounts, so a year that raised twice as much looks the same size. Hover a bar for the split.

2017
2018
2019
2020
2021
2022
2023
2024
2025
ContributionsProgram revenueInvestmentOther

Government-grant reliance: 2017 4% · 2018 8% · 2019 3% · 2020 4% · 2021 4% · 2022 3% · 2023 11% · 2024 7% · 2025 11%. Grants only. Government contracts and fees sit inside program revenue.

65% of MASSACHUSETTS AUDUBON SOCIETY INC’s revenue is contributions — about as donation-reliant as the typical peer (87% for the typical peer).

This organization
Typical peer · 360 orgs

Surplus & reserves

Operating surplus or deficit each year, and months of liquidity in hand. 1 of the last 9 reported years ran a deficit.

−$1.2M
’17
$4.9M
’18
$16M
’19
$6.3M
’20
$9.4M
’21
$12M
’22
$3.1M
’23
$22M
’24
$2.3M
’25
9.4
months of
reserve

Leadership and staff

The officers, directors, trustees and key employees listed on each return. Joined and no longer listed compare each filing with the year before, matching people by surname and first initial; a year after a gap, or a roster under three people, has no comparison.

'17'18'19'20'21'22'23'24'25
Listed373842394545444243
Joined·+4+4+6+9+7+5+3+7
No longer listed·30937656
03Who funds it

Who funds it, year by year

2017 → 2023: the base broadened from 84 funders to 183 funders, grant income rose $2.0M → $17M.

55 of 371 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 42% of grant dollars received. That money is really individual donors directing a sponsor; the institutions to cultivate are the non-DAF funders.

From the IRS filings of MASSACHUSETTS AUDUBON SOCIETY INC’s funders (the co-funder graph). Top 30 of 371 funders by total. Association, not causation. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.

How concentrated its funding is

MASSACHUSETTS AUDUBON SOCIETY INC has a broad base — no single funder exceeds 22% of grant income, and it takes 4 funders to reach half.

the vertical line marks half of all grant income — 4 funders to its left

45% of the income these shares are computed over arrives through pass-through sponsors or from payers whose filings do not say what kind of payment it is. Concentration is still measured over all of it, because the money is real; what it does not support is a claim about how many institutions have chosen to fund MASSACHUSETTS AUDUBON SOCIETY INC.

22%
largest funder
48%
top three
~11
effective funders

Largest funder’s share by year: 2017 35% · 2018 45% · 2019 32% · 2020 27% · 2021 34% · 2022 31% · 2023 42% — growing more concentrated.

“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.

How long its funders stay

56% of MASSACHUSETTS AUDUBON SOCIETY INC's funders are still giving 3 years after their first grant; 66% give in more than one year at all.

first grant+1y+2y+3y+4y+5y+6y

Share of funders still giving k years after their first recorded grant, pooled across every acquisition cohort. A funder counts as retained in a year only if it made a grant that year. Measured to FY2023, the last fiscal year that has finished arriving — a funder cannot be counted as lapsed in a year most filers have not reached.

Where its funders are

80% of MASSACHUSETTS AUDUBON SOCIETY INC's grant income comes from Massachusetts funders.

AK
ME
NH
WA
MN
IL
WI
NY
MA
OR
NV
WY
IA
IN
OH
PA
NJ
CT
RI
CA
CO
NE
MO
VA
MD
DE
NM
KS
NC
DC
OK
GA
TX
FL

In-state vs out-of-state, by year

’17
’18
’19
’20
’21
’22
’23
Massachusetts out of state home

Funder states come from each funder’s own filing. $23M arriving through sponsors registered in 21 states is excluded from the map and the split above: a sponsor holds money on a donor’s behalf, so its registered address would place those dollars somewhere no donor need ever have been. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.

04Its place in the field

Against its field

MASSACHUSETTS AUDUBON SOCIETY INC holds deeper cash reserves than three-quarters of the 195 environment nonprofits its size.

Operating margin4% · below the median
Months of reserve9.4mo · top quartile
Revenue growth (annualized)9% · below the median

this organization peer median middle 50% of peers· 195 environment nonprofits $10M–$100M, FY2025

Government funding MASSACHUSETTS AUDUBON SOCIETY INC receives

Grants and contracts to this organization from federal (USASpending) and state checkbooks, reconciled to its EIN. $7.8M on record — $7.8M federal, $468 state.

Federal$7.8M
grants $7.8Mcontracts $49k
17
18
19
20
21
22
23
24
Top agencies
  • Department of Commerce$5.1M
  • Department of the Interior$937k
  • Environmental Protection Agency$865k
  • Institute of Museum and Library Services$360k
  • Department of Agriculture$348k
  • Department of Education$250k
State$468
03
04
05
06
09
Top programs
  • DEDICATED$390
  • FEDERAL$78

Federal grants vs contracts are distinguished; state line items keep their reported category. Matched by name + geography (the BMF), so coverage is partial and precision-first.

Organizations like MASSACHUSETTS AUDUBON SOCIETY INC

Organizations whose mission and program text most resemble this one, by semantic similarity over every organization in the US filings — the closest peers, and often the clearest route to shared or prospective funders.

In Massachusetts

Nationally

05Profile & governance

Read directly from this organization’s own Form 990, as neutral context.

Where the money goes

82% of spending goes to programs.

Program 82%Management 10%Fundraising 8%

Governance

26
board members
100%
independent
✓Conflict-of-interest policy✓Whistleblower policy✓Document retention✓Board reviewed the 990✓Audited financials

Public support

81%

Share of support from the public (Schedule A) — the basis for its public-charity status.

Footprint & structure

Files a return copy in 19 states

ME
NH
WA
MN
WI
NY
MA
OH
PA
NJ
CT
RI
CA
VA
MD
NC
DC
GA
FL

Part of a family of 5 related entities

  • Whetstone Wood Trust Fund Co Massachusetts Audubon Society · exempt
  • Gift Annuities (41) · corp_trust
  • Pooled Income (11) · corp_trust
  • Unitrusts (9) · corp_trust
  • Trust on Our Behalf (1) · corp_trust

Screen this organization

A dated, signed PDF of the compliance screen for MASSACHUSETTS AUDUBON SOCIETY INC: IRS status (Business Master File, Publication 78, auto-revocation), the OFAC sanctions lists, the Internal Revenue Bulletin, and California registration, with the Rev. Proc. 2018-32 §8.01 reliance elements stated element by element. Generated from the current files at the moment you download it.

A paid feature, included from the $75 plan up. Sign in to download.

Screens are triage, not determinations; a source that cannot be read reports not screened, never clear. Screen this nonprofit · How the screen works · on the API as GET /api/screening/{ein}?format=pdf

Questions and answers

Who funds MASSACHUSETTS AUDUBON SOCIETY INC?
MASSACHUSETTS AUDUBON SOCIETY INC (Massachusetts) receives grants from 371 organizations whose IRS filings report $54,841,843 to it, the largest being FIDELITY INVESTMENTS CHARITABLE GIFT FUND ($12,216,512). 245 of them have funded it in more than one year.
How many funders does MASSACHUSETTS AUDUBON SOCIETY INC have?
IRS filings report 371 organizations giving $54,841,843 in grants to MASSACHUSETTS AUDUBON SOCIETY INC, 245 of which have funded it in more than one year.
Who is the largest funder of MASSACHUSETTS AUDUBON SOCIETY INC?
FIDELITY INVESTMENTS CHARITABLE GIFT FUND is the largest funder on record, with $12,216,512 in grants. The full list of funders is on this page.
How can an organization like MASSACHUSETTS AUDUBON SOCIETY INC find more funders?
Start with the funders already giving here, then look at the foundations that back similar organizations in Massachusetts. The funding by cause and by state pages list the largest funders for a given area and how to approach them.

These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2017–2025), and the filings of 371 funders that report grants to it. “On record” means captured in the filings we have parsed — a funder that does not e-file, or whose grant detail is not itemized, will not appear. Filings run roughly 12–24 months behind. Trends on this page end at FY2023, the last fiscal year that has finished arriving; later years are shown and marked, and move no figure. Data on this page was exported October 14, 2026. What this page cannot tell you · view filing