Groton Open Space Association Inc logo

Groton Open Space Association Inc

Public charity · Grantmaker Groton, CT EIN: 06-1469419 Website

GOSA's mission is to protect and preserve open space and water resources in Southeastern CT, provide public access for passive recreation, and to educate the public.

Groton Open Space Association Inc at a glance

Total assets
$7,064,939
+1.4% vs 2024
Revenue (2025)
$150,404
-24.8% vs 2024
Net investment income (2025)
$7,271
+19.8% vs 2024
Expenses (2025)
$54,072
+71.4% vs 2024
Latest 990 filing
Form 990, 2025 View filing

Data from IRS Form 990, 2025; updated September 2026.

Who Groton Open Space Association Inc funds

How this funder distributes its grants

Grant Size Distribution

1 grant across all recorded years

<$50K$50–100K1$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was in the $100–250K range: 1 grant of 1 (100%).

Geographic Focus

Where this funder awards grants

Grant Distribution by State

1state

States

Cities

Groton

Giving History

Giving Over Time

Total grant dollars and number of grants per year

$0$100K$200K$300KTotal only2019 Total only2020 0 grants2021 1 grant2022 0 grants2023 0 grants2024 0 grants2025

From 2019 to 2022, annual grant giving ranged from $550 (2020) to $210K (2022). In 2022 it made 1 grant totaling $210K.

Hatched bars: grants paid as reported on the IRS filing, which lists no individual grants for that year.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
Town of Groton CT Groton, CTPurchase of property$210,000
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Financial History

Multi-year comparison from IRS filings

Figures from IRS filings, by filing year
Filing yearTotal AssetsRevenueExpensesGrants paidGrantsNet Investment Income
2025$7,064,939$150,404$54,072——$7,271
2024$6,968,607$199,875$31,553——$6,067
2023$6,800,285$257,111$29,230——$3,294
2022$6,572,405$157,279$242,147$210,0001$193
2021$6,657,272$1,450,842$28,840——$2,298
2020$5,235,270$146,987$28,982$550Total only$2,315
2019$5,117,265$144,783$60,442$750Total only$9,732

"Total only": grants paid as reported on the IRS filing, which lists no individual grants for that year.

About Groton Open Space Association Inc

Based on IRS filings

Groton Open Space Association Inc is a public charity focused on Environment & Animals, based in Groton, CT. IRS filing data is available from 2019 through 2025. As of 2025, the organization holds $7.1M in total assets. Net investment income was $7K.

Leadership & Key People

Officers and directors from IRS filings

Groton Open Space Association Inc is led by Betsy Chittenden, President since 2024 (on filings since 2022); none of the 8 officers listed in 2025 report compensation.

Officers on the 2025 filing

  • Betsy Chittenden

    President

    Director → President, 2024

    On filings since 2022

    30 hrs/week

    No compensation reported

  • Sidny Van Zandt

    Director

    Vice President → Director, 2024

    On filings since 2019

    20 hrs/week

    No compensation reported

  • Dan O'Connell

    Director

    President → Director, 2024

    On filings since 2022

    20 hrs/week

    No compensation reported

  • Janet Andersen

    Director

    On filings since 2024

    20 hrs/week

    No compensation reported

  • Joan H. Smith

    Vice President

    President → Vice President, 2022

    On filings since 2019

    20 hrs/week

    No compensation reported

  • Wendy K. Spader

    Secretary

    Director → Secretary, 2024

    On filings since 2019

    20 hrs/week

    No compensation reported

  • Kennith Paonessa

    Vice President

    Director → Vice President, 2024

    On filings since 2023

    20 hrs/week

    No compensation reported

  • Kevin Ryan

    Treasurer

    On filings since 2024

    15 hrs/week

    No compensation reported

Former officers (16)
  • Former: Danny J. Oconnell (2019–2023) — President
  • Former: Robin D. Thomas (2020–2023) — Secretary
  • Former: Michael Maurice (2021–2023) — Treasurer
  • Former: Diane Skelaris (2022) — Director
  • Former: Emily C. Ray (2019–2021) — Director
  • Former: James B. Anderson (2019–2021) — Treasurer
  • Former: Marie W. Goe Olson (2019–2021) — Secretary
  • Former: Diane Skaleris (2021) — Director
  • Former: David A. Olivier (2019–2020) — Treasurer
  • Former: Jamie K. Densmore (2019–2020) — Director to
  • Former: Patricia A. Olivier (2019–2020) — Secretary
  • Former: Whitney R. Adams (2019–2020) — Director
  • Former: Marie W. Goe-Olson (2020) — Director
  • Former: Paul A. Connor (2020) — Director
  • Former: Sidney F. Vanzandt (2020) — Vice President
  • Former: Lon Thompson (2019) — Director

Data from IRS Form 990 filings, 2019–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Frequently asked questions about Groton Open Space Association Inc

How large is Groton Open Space Association Inc?

Groton Open Space Association Inc reported $7.1M in total assets on its 2025 IRS Form 990. Its revenue that year was $150K.

What is Groton Open Space Association Inc?

Groton Open Space Association Inc is a public charity focused on Environment & Animals, based in Groton, CT. It holds $7.1M in total assets as of 2025.

Where does Groton Open Space Association Inc operate?

Groton Open Space Association Inc has awarded grants in Connecticut.

What is Groton Open Space Association Inc's EIN?

Groton Open Space Association Inc's EIN (Employer Identification Number) is 06-1469419. IRS Form 990 filing data is available on this page for 2019–2025.

Data last updated September 2026. Sourced from IRS Form 990 filings.

Data update history

(5)

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990 for fiscal year 2022 (received by the IRS April 17, 2023)
  2. Added Form 990 for fiscal year 2019 (received by the IRS April 24, 2020)
  3. Updated Form 990 for fiscal year 2020 (received by the IRS April 13, 2021)
  4. Added Form 990 for fiscal year 2025 (received by the IRS May 6, 2026)
  5. IRS filings on file for fiscal years 2020–2024

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The filing figures on this page are open data under CC BY 4.0. About GrantGraph Open

Figures come from Groton Open Space Association Inc's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.

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