Funders › CT › Halvorsen Family Foundation C/O Ole Andreas Halvorsen Trustee › 2023
Grants paid by Halvorsen Family Foundation C/O Ole Andreas Halvorsen Trustee, tax year 2023
EIN 06-1603158 · Stamford, CT · Form 990-PF, Part XV · NTEE T90
In tax year 2023, Halvorsen Family Foundation C/O Ole Andreas Halvorsen Trustee (EIN 06-1603158) reported 24 grants paid totaling $14,595,000. Dataset version 2026.09.0, built 2026-09-03.
Every grant, 2023
| Tax year | Recipient | Match | Amount | Type | Purpose | Source filing |
|---|---|---|---|---|---|---|
| 2023 | Sterling and Francine Clark Art Institute Williamstown, MA | C | $5,450,000 | paid | ARTISTIC INITIATIVES | 202421039349101412 |
| 2023 | Memorial Sloan Kettering Cancer Center West Harrison, NY | U | $5,250,000 | paid | MEDICAL SUPPORT | 202421039349101412 |
| 2023 | Weill Cornell Medicine New York, NY | U | $1,250,000 | paid | MEDICAL SUPPORT | 202421039349101412 |
| 2023 | US Ski & Snowboard Park City, UT | U | $1,000,000 | paid | ATHLETIC OPPORTUNITIES | 202421039349101412 |
| 2023 | Williams College Williamstown, MA | B | $550,000 | paid | EDUCATIONAL SUPPORT | 202421039349101412 |
| 2023 | Wildlife Conservation Society Bronx, NY | B | $350,000 | paid | WILDLIFE CONSERVATION | 202421039349101412 |
| 2023 | The Rockefeller University New York, NY | B | $150,000 | paid | EDUCATIONAL SUPPORT | 202421039349101412 |
| 2023 | Trond Bolles Minnefond Oslo | U | $100,000 | paid | GENERAL SUPPORT | 202421039349101412 |
| 2023 | Teachers College Columbia University New York, NY | B | $100,000 | paid | EDUCATIONAL SUPPORT | 202421039349101412 |
| 2023 | The Hospital for Special Surgery Fund Inc New York, NY | B | $100,000 | paid | MEDICAL SUPPORT | 202421039349101412 |
| 2023 | Noram Oslo | U | $60,000 | paid | GENERAL SUPPORT | 202421039349101412 |
| 2023 | Green Mountain Valley School Inc Waitsfield, VT | B | $50,000 | paid | EDUCATIONAL SUPPORT | 202421039349101412 |
| 2023 | Greens Ledge Light Preservation Rowayton, CT | C | $35,000 | paid | PRESERVATION SUPPORT | 202421039349101412 |
| 2023 | The Maritime Aquarium at Norwalk Inc South Norwalk, CT | B | $30,000 | paid | EDUCATIONAL SUPPORT | 202421039349101412 |
| 2023 | Connecticut Audubon Society Fairfield, CT | B | $25,000 | paid | ENVIRONMENTAL INITIATIVES | 202421039349101412 |
| 2023 | Stowe Volunteer Firefighters Inc Stowe, VT | B | $15,000 | paid | GENERAL SUPPORT | 202421039349101412 |
| 2023 | Massachusetts Museum of Contemporary Art Foundation Inc North Adams, MA | B | $10,000 | paid | ARTISTIC INITIATIVES | 202421039349101412 |
| 2023 | Darien Community Association Darien, CT | B | $10,000 | paid | COMMUNITY INITIATIVES | 202421039349101412 |
| 2023 | National Nordic Foundation Saint Paul, MN | B | $10,000 | paid | ATHLETIC OPPORTUNITIES | 202421039349101412 |
| 2023 | Stowe Rescue Squad Inc Stowe, VT | B | $10,000 | paid | MEDICAL SUPPORT | 202421039349101412 |
| 2023 | Darien Ems Post 53 Inc Darien, CT | B | $10,000 | paid | MEDICAL SUPPORT | 202421039349101412 |
| 2023 | Westport River Watershed Alliance Westport, MA | B | $10,000 | paid | ENVIRONMENTAL INITIATIVES | 202421039349101412 |
| 2023 | Darien Library Inc Darien, CT | B | $10,000 | paid | LIBRARY SUPPORT | 202421039349101412 |
| 2023 | Nensa New Gloucester, ME | U | $10,000 | paid | ATHLETIC OPPORTUNITIES | 202421039349101412 |
Match tier: A Reported EIN · B Exact name and place · C Strong name match · D Probable name match · U Unresolved. Tiers C and D are inferred, not reported; see how matching works.
Recipient matching for this dataset version has not yet completed its independent precision check. Tier A rows carry the EIN the filer reported; tiers B–D are the matcher's inference and should be read as leads until the check is published on the methodology page.
Derived from IRS Form 990-PF e-file XML. Dataset version 2026.09.0, built 2026-09-03. All years for this funder.
The same organization elsewhere in the program: exempt status and filing health · federal awards · grant guidance · open opportunities.
This is informational only, derived from public data on the dates shown. It is not an eligibility determination, and not legal, tax, or accounting advice. Verify against the official source before relying on it.