Organization for Tropical Studies Inc
Funding Overview
From IRS Form 990 filings · 2020–2025
Total received
$563K
Foundation funders
16
Grants recorded
35
Years covered
2020–2025
Who funds Organization for Tropical Studies Inc?
Organization for Tropical Studies Inc is funded by 16 grantmakers, led by The G Unger Vetlesen Foundation ($250K), Ruggles Family Foundation ($145K), Towards Sustainability Foundation ($40K). In total, IRS Form 990 filings record $563K in grants to Organization for Tropical Studies Inc between 2020–2025.
| Funder | Total given | Grants | Years |
|---|---|---|---|
| The G Unger Vetlesen Foundation | $250,000 | 4 | 2020–2023 |
| Ruggles Family Foundation | $145,000 | 3 | 2021–2024 |
| Towards Sustainability Foundation | $40,000 | 3 | 2021–2023 |
| Lincoln Park Zoological Society | $30,775 | 1 | 2025 |
| The Maxwellhanrahan Foundation | $20,000 | 2 | 2021–2022 |
| The North Star Charitable Foundation | $20,000 | 1 | 2020 |
| Vanguard Charitable Endowment Program | $17,000 | 2 | 2021–2022 |
| Paugus Charitable Trust | $10,800 | 5 | 2020–2024 |
| Louden Family Foundation | $9,000 | 2 | 2024–2025 |
| Harold & Joan Feinbloom Family | $8,300 | 4 | 2020–2023 |
| The Charles and Roberta Katz | $5,000 | 1 | 2023 |
| Smith Richardson Foundation Inc | $4,000 | 2 | 2020 |
| Bristol-Myers Squibb Foundation Inc | $1,500 | 2 | 2021–2023 |
| Maple Grove Foundation | $500 | 1 | 2022 |
| MSA Family Fund | $500 | 1 | 2022 |
| IBM International Foundation | $500 | 1 | 2020 |
Funding over time
Grant dollars and counts received per year
From 2020 to 2025, annual grant giving ranged from $23K (2024) to $174K (2022). In 2025 it made 2 grants totaling $37K.
What grants has Organization for Tropical Studies Inc received?
Individual grants from IRS Form 990 filings, newest first
| Year | Funder | Purpose | Amount |
|---|---|---|---|
| 2025 | Lincoln Park Zoological Society | CONSERVATION | $30,775 |
| 2025 | Louden Family Foundation | NO RESTRICTIONS | $6,000 |
| 2024 | Ruggles Family Foundation | GENERAL PURPOSE | $10,000 |
| 2024 | Paugus Charitable Trust | PROVIDE FINANCIAL SUPPORT | $10,000 |
| 2024 | Louden Family Foundation | NO RESTRICTIONS | $3,000 |
| 2023 | The G Unger Vetlesen Foundation | GENERAL PURPOSES | $100,000 |
| 2023 | Towards Sustainability Foundation | Tropical Restoration Initiative | $15,000 |
| 2023 | The Charles and Roberta Katz | GENERAL FUNDING | $5,000 |
| 2023 | Harold & Joan Feinbloom Family | SUSTAIN TROPICAL ECOSYSTEMS | $1,000 |
| 2023 | Bristol-Myers Squibb Foundation Inc | EMPLOYEE GIVING PROGRAM | $500 |
| 2023 | Paugus Charitable Trust | PROVIDE FINANCIAL SUPPORT | $100 |
| 2022 | Ruggles Family Foundation | GENERAL PURPOSE | $85,000 |
| 2022 | The G Unger Vetlesen Foundation | GENERAL PURPOSES | $50,000 |
| 2022 | Towards Sustainability Foundation | Vivero de la Cultura Program | $15,000 |
| 2022 | Vanguard Charitable Endowment Program | For recipient's exempt purpose | $11,500 |
| 2022 | The Maxwellhanrahan Foundation | To support the professional development of undergraduate or graduate students in the field of scientific illustration and provide real world experience that advances the mission of the Organization for Tropical Studies (OTS) | $10,000 |
| 2022 | Harold & Joan Feinbloom Family | SUSTAIN TROPICAL ECOSYSTEMS | $1,300 |
| 2022 | Maple Grove Foundation | PROGRAM SERVICES | $500 |
| 2022 | MSA Family Fund | THE PURPOSE FOR WHICH THEY EXIST | $500 |
| 2022 | Paugus Charitable Trust | PROVIDE FINANCIAL SUPPORT | $100 |
| 2021 | Ruggles Family Foundation | GENERAL PURPOSE | $50,000 |
| 2021 | The G Unger Vetlesen Foundation | GENERAL PURPOSES | $50,000 |
| 2021 | Towards Sustainability Foundation | Viva de la Cultura Program | $10,000 |
| 2021 | The Maxwellhanrahan Foundation | To support an Internship in the Urban Tropics | $10,000 |
| 2021 | Vanguard Charitable Endowment Program | FOR RECIPIENT'S EXEMPT PURPOSE | $5,500 |
| 2021 | Harold & Joan Feinbloom Family | SUSTAIN TROPICAL ECOSYSTEMS | $2,500 |
| 2021 | Bristol-Myers Squibb Foundation Inc | EMPLOYEE GIVING PROGRAM | $1,000 |
| 2021 | Paugus Charitable Trust | PROVIDE FINANCIAL SUPPORT | $100 |
| 2020 | The G Unger Vetlesen Foundation | GENERAL PURPOSES | $50,000 |
| 2020 | The North Star Charitable Foundation | GENERAL PURPOSE | $20,000 |
Showing 30 most recent of 35 recorded grants.
Frequently Asked Questions
Who funds Organization for Tropical Studies Inc?
Organization for Tropical Studies Inc is funded by 16 grantmakers, led by The G Unger Vetlesen Foundation ($250K), Ruggles Family Foundation ($145K), Towards Sustainability Foundation ($40K). In total, IRS Form 990 filings record $563K in grants to Organization for Tropical Studies Inc between 2020–2025.
Who is Organization for Tropical Studies Inc's largest funder?
The G Unger Vetlesen Foundation is the largest recorded funder of Organization for Tropical Studies Inc, with $250K across 4 grants (2020–2023).
How much grant funding has Organization for Tropical Studies Inc received?
IRS 990 filings record $563K in grants to Organization for Tropical Studies Inc across 35 grants from 16 funders between 2020–2025. Filings are published on a delay, so recent grants may not appear yet.
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Grant data is drawn from IRS Form 990 filings via Grantable's GrantGraph™. Filings are published on a delay; recent grants may not appear yet.
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