- Revenue 2024
- $28,580,119
- Expenses 2024
- $12,681,186
Program services were 51.8% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.
As filed
- Subsection
- 03
- NTEE code
- C410
- Classification
- 1000
- Street
- PO BOX 234
These codes are the IRS's own and are shown exactly as filed. What each one means is in the Business Master File documentation (opens in a new tab).
Mission and programs · 2024
Mission
The mission of Coastal Maine Botanical Gardens, Inc. is to inspire meaningful connections among people and nature and promote plant conservation through horticulture, education, and plant science.
Activities or mission (Part I)
To inspire connections among people and nature through horticulture, education, and research.
-
Incorporated as a non-profit in 1992, Coastal Maine Botanical Gardens (CMBG) opened in 2007 as Maine's first major botanical garden. At 325 acres, seventeen of which include themed and ornamental gardens, woodland trails, with nearly a mile of tidal shorefront, it is the largest public garden in Northern New England. The Gardens feature the Lyn and Daniel Lerner Visitor Center, a curated garden shop, and a cafe and grab-and-go market. CMBG offers educational programs encompassing plant science, gardening, botanical arts, and environmental education in our LEED-platinum, net-zero Bosarge Family Educational Center. Each of the Gardens' buildings also house administrative offices. CMBG remains an economic engine for the State of Maine, attracting 331,442 visitors to the Boothbay region during this tax year.
Expenses $6,570,320 · Grants $5,750 · Revenue $7,951,761
As filed on the 2024 return.
Officers and directors · 2024
As listed in Part VII of the 2024 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.
-
John Auber
Director
- Total calculated
- $0
- Hours/week
- 1
-
Karen Bartholomew
Director
- Total calculated
- $0
- Hours/week
- 1
-
Abra Lee
Director
- Total calculated
- $0
- Hours/week
- 1
-
Todd Leland
Director (start 1/2025)
- Total calculated
- $0
- Hours/week
- 1
-
Jeff Long
Director
- Total calculated
- $0
- Hours/week
- 1
-
Keith Mestrich
Director
- Total calculated
- $0
- Hours/week
- 1
-
Helen Norton
Director
- Total calculated
- $0
- Hours/week
- 1
-
Luc Nya
Director
- Total calculated
- $0
- Hours/week
- 1
-
Kirsten Poler
Director
- Total calculated
- $0
- Hours/week
- 1
-
Margaret Reiser
Director
- Total calculated
- $0
- Hours/week
- 1
-
Beth Renyi
Director
- Total calculated
- $0
- Hours/week
- 1
-
David Rines
Director
- Total calculated
- $0
- Hours/week
- 1
-
Paula Swetland
Director
- Total calculated
- $0
- Hours/week
- 1
-
Mary Neal
Chair
- Total calculated
- $0
- Hours/week
- 7
-
Mark Osborn
Chair Elect
- Total calculated
- $0
- Hours/week
- 1
-
Paul Goodof
Treasurer
- Total calculated
- $0
- Hours/week
- 1
-
Ann Poole
Secretary
- Total calculated
- $0
- Hours/week
- 1
-
Gretchen Ostherr
President & CEO
- Total calculated
- $327,311
- From this org
- $284,495
- From related orgs
- $0
- Other
- $42,816
- Hours/week
- 50
Schedule J breakdown matched by us
- Base
- $269,495
- Bonus
- $15,000
- Other
- $0
- Deferred
- $11,438
- Nontaxable benefits
- $31,378
- Filer's total
- $327,311
-
Jennifer McKane
VP of Philantropy & Marketing
- Total calculated
- $187,950
- From this org
- $157,292
- From related orgs
- $0
- Other
- $30,658
- Hours/week
- 40
Schedule J breakdown matched by us
- Base
- $124,792
- Bonus
- $32,500
- Other
- $0
- Deferred
- $6,657
- Nontaxable benefits
- $24,001
- Filer's total
- $187,950
-
Amy Root
Senior Philanthropy Advisor
- Total calculated
- $165,831
- From this org
- $130,350
- From related orgs
- $0
- Other
- $35,481
- Hours/week
- 40
Schedule J breakdown matched by us
- Base
- $112,800
- Bonus
- $17,550
- Other
- $0
- Deferred
- $5,805
- Nontaxable benefits
- $29,676
- Filer's total
- $165,831
-
Daniel Ungier
VP of Guest Experience and Education
- Total calculated
- $150,577
- From this org
- $113,478
- From related orgs
- $0
- Other
- $37,099
- Hours/week
- 40
Schedule J breakdown matched by us
- Base
- $113,478
- Bonus
- $0
- Other
- $0
- Deferred
- $5,196
- Nontaxable benefits
- $31,903
- Filer's total
- $150,577
-
Melissa Cullina
VP of Plants and Science
- Total calculated
- $107,324
- From this org
- $102,128
- From related orgs
- $0
- Other
- $5,196
- Hours/week
- 40
Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead, and on a Form 990-PF Part VIII's — compensation, contributions to benefit plans, and expense account — and the total sums those. A Schedule J breakdown is as filed: base pay, bonus, other, deferred compensation and nontaxable benefits from this organization, with any from related organizations beside each, and the filer's own total. It is shown with the Part VII listing of the same name on the same return. The form gives no key between the two, so that pairing is ours, and is marked matched by us. Earlier years are each on their own filing page.
Filings
-
2024
- Revenue
- $28,580,119
- Expenses
- $12,681,186
- Contributions
- $19,802,022
- Grants paid
- $5,750
-
2023
- Revenue
- $12,789,794
- Expenses
- $11,026,074
- Contributions
- $5,641,720
- Grants paid
- $6,400
-
2022
- Revenue
- $19,371,398
- Expenses
- $10,425,042
- Contributions
- $12,577,558
- Grants paid
- $0
The four totals the IRS asks for on Part I of the Form 990, as filed. A dash means the figure was not present on the return — not that it was zero.
Other returns filed
-
2021 · 990
- Revenue
- $23,280,988
- Expenses
- $8,808,170
- Assets (EOY)
- $58,317,312
-
2020 · 990
- Revenue
- $6,781,712
- Expenses
- $7,454,082
- Assets (EOY)
- $44,454,198
-
2019 · 990
- Revenue
- $12,315,092
- Expenses
- $8,014,204
- Assets (EOY)
- $44,417,439
-
2015 · 990
- Revenue
- $4,339,142
- Expenses
- $3,847,970
- Assets (EOY)
- $20,855,820
-
2013 · 990
- Revenue
- $2,863,374
- Expenses
- $2,981,903
- Assets (EOY)
- $21,334,700
-
2012 · 990
- Revenue
- not reported
- Expenses
- $2,766,978
- Assets (EOY)
- $21,342,993
-
2011 · 990
- Revenue
- not reported
- Expenses
- $2,489,906
- Assets (EOY)
- $21,081,652
-
2010 · 990
- Revenue
- not reported
- Expenses
- $2,179,484
- Assets (EOY)
- $19,652,626
Nonprofiteer parses Forms 990, 990-EZ and 990-PF, in a window of recent tax years. These returns are recorded from the IRS e-file index, so their figures were extracted by that index rather than read from the return here — treat them as a different source from the filings above, not as more of the same record. A dash means the index carries no figure; Form 990-T listings carry none at all.
Grants made
No itemized grants to organizations. Schedule I is filed only by organizations that granted more than $5,000 to a recipient, so most filers have none.
Grants received
-
FIDELITY INVESTMENTS CHARITABLE GIFT FUND
$1,150,295
2022 For grant recipient's exempt purposes
-
GOLDMAN SACHS CHARITABLE GIFT FUND
$500,000
2024 SUPPORT OF ENVIRONMENTAL PROGRAMS
-
2023 For grant recipient's exempt purposes
-
$250,000
2023 Capital Campaign
-
$250,000
2022 Capital Campaign
-
GOLDMAN SACHS CHARITABLE GIFT FUND
$250,000
2024 CAPITAL CAMPAIGN
-
2024 For grant recipient's exempt purposes
-
MAINE COMMUNITY FOUNDATION INC
$133,500
2023 Botanical Gardens & Arboreta
-
2023 FOR RECIPIENT'S EXEMPT PURPOSE
-
2022 FOR RECIPIENT'S EXEMPT PURPOSE
The 10 largest by cash amount. The API serves every itemized grant.
Other IRS files
Auto-Revocation List
Not listed. The IRS publishes this list for organizations whose exemption was automatically revoked for failing to file for three consecutive years.
Publication 78
Listed as of 13 October 2026, under deductibility PC.
These are two separate IRS files on two separate schedules, shown as published and not reconciled with each other. Neither is a statement about whether a contribution is deductible today: 19,245 organizations appear in Publication 78 while the IRS's own revocation file lists them as currently revoked, more than half of those revoked before 2019. Absence from Publication 78 is evidence of nothing, and presence is not evidence either. Verify current status with the IRS before relying on it.
What this page reflects
The registration facts above come from the IRS Business Master File published 13 October 2026 and read 1 November 2026, for every organization at once. Returns through tax year 2024, the newest we have parsed for this organization.