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US nonprofit · EIN 020353541 · Albany, NHiSource and licenceOrganisation record IRS Exempt Organizations Business Master File (EIN 020353541) - NTEE activity code, address.Board and officers IRS Form 990 annual filings, Part VII (directors, trustees, officers, key employees), read year by year to observe tenure.Latest return IRS Form 990 series e-file data - 990 for the year to 30 September 2025: assets, liabilities, staff, website, telephone, pay.Renewal outlook Computed by Governance Register from the observed filing history and filed revenue (us-approach-v4-clean). Not a statement that the organisation is recruiting.Deductibility IRS Publication 78 data (code PC), downloaded 18 October 2026.Licence US Federal Government public domain.How we handle data

Tin Mountain Conservation Center Incorporated

Donations deductible
Revenue
$1.4m
year to 30 September 2025
Expenses
$1.2m
year to 30 September 2025
Total assets
$4.2m
$49k liabilities
Net assets
$4.2m
assets less liabilities
Directors and trustees
20
5.7y av
Staff
31
90 volunteers
Chair observed
≥3 yrs
Tom Albert
Left since last filing
3
15% of the board
How am I connected?

Tin Mountain Conservation Center Incorporated's network

20 people2 organisationsi20 people and 2 organisations on this map.The large node is the subject of this page. Solid lines are what the register itself records (20). Violet dotted lines (2) are likely: the same full name sits on the current board of another organisation in the same register and region. Form 990 filings give names without a person identifier; SEC insider filings carry a CIK. It may be a different person.

The board

20 listediTime on the board is observed from the annual filings: the IRS files no appointment date, so the bar counts years from the first filing the person appears on - a lower bound, not a filed start date. Names are exactly as filed. The IRS publishes no person identifier, so this edition does not yet link a person across organisations in the tables. The network map shows same-name matches as likely links only, never as confirmed.Tenure and departures are observed across annual filings. Observed tenure is a lower bound - a member may have joined before the first year on record. The organisation reported 20 voting members of its governing body on its latest Form 990 Part VI, which matches the board listed here.
NameRole as filedSinceOn the board
Tom Albert ChairChair2020
6 yrs
Chris CostelloTrustee2023
3 yrs
David FreedmanTrustee2020
6 yrs
ED BoyleTrustee2022
4 yrs
Elizabeth SeaburyCompany secretary2021
5 yrs
Harry DylanTrustee2023
3 yrs
Jason DennisTrustee2020
6 yrs
Jason SalgoTreasurer2022
4 yrs
Johanna VienneauTrustee2021
5 yrs
Karl PfeilTrustee2020
6 yrs
Kim BowkerTrustee2020
6 yrs
Kim MatteTrustee2020
6 yrs
Leslie SchomakerTrustee2020
6 yrs
Margaret MarshallTrustee2020
6 yrs
Nancy DevineTrustee2020
6 yrs
Rick SteberVice Chair2020
6 yrs
Steve WoodcockTrustee2023
3 yrs
Sue PfeilTrustee2020
6 yrs
Susan ClarkTrustee2020
6 yrs
William Petry (also filed as Bill Petry)Trustee2020
6 yrs
Under 5 years5 to 6 years6 years or moreShow all 20 →

Pay and hours

year to 30 September 2025iFrom Part VII of the Form 990: compensation reported for each officer, director, trustee, key employee and highest-paid staff member, and the average hours a week they report. Most board members are unpaid; a blank means nothing was reported. Pay from related organisations is shown separately.
NameTitle as filedHours a weekPay from the organisationRelated organisationsOther
Chris CostelloTrustee$0
Laura CummingsTrustee$0
Harry DylanTrustee$0
Dylan HarryTrustee$0
Adam HicksTrustee$0
Jerry KnirkTrustee$0
William PetryVice Chair$0
Jason SalgoTreasurer$0
Elizabeth SeaburyChair$0
Johanna VienneauTrustee$0
Sue WemyssTrustee$0
Steve WoodcockTrustee$0

No pay was reported for anyone in Part VII on this return.

About

Legal name
Tin Mountain Conservation Center Incorporated
EIN
020353541
Address
1245 Bald Hill Rd, Albany, NH, 03818-7306
State
New Hampshire
Mission
The organization's mission is to promote an appreciation of the natural environment among children, families, and the community through hands-on programs in the schools, at camps, and in the community; and to demonstrate responsible stewardship of natural resources through land protection, sustainable forestry, agriculture, and energy. (as filed on the Form 990)
Activity (NTEE)
C600 Environment
IRS classification
501(c)03 (tax-exempt under section 501(c)(3) where shown)
Classified purpose
Environment
Size band
6 (IRS master file code)
Formed
1980
Principal officer
Elizabeth Seabury (as named on the Form 990)
IRS ruling date
1 October 1990
Status
Code 01 (unconditional exemption)
Form 990 filings on record
4, latest 2023
IRS Publication 78
PC (contributions deductible)

Most connected

Longest observed on the filings

≥6years on the filingsTom Albert
≥6years on the filingsDavid Freedman
≥6years on the filingsJason Dennis
≥6years on the filingsKarl Pfeil

Latest return

year to 30 September 2025iFigures from the newest Form 990 or 990-EZ in the IRS e-file releases of 2025 and 2026, for the year ending 30 September 2025. US dollars, as filed.
Total assets
$4.2m
Total liabilities
$49k
Net assets or fund balances
$4.2m
Contributions and grants received
$746k
Program service revenue
$281k
Grants and similar paid out
$9k
Employees
31
Volunteers
90