Grants paid by Gigi & Averell H Mortimer Foundation
EIN 46-4323935 · Harriman, NY · Form 990-PF, Part XV · NTEE T99
Gigi & Averell H Mortimer Foundation of Harriman, NY (EIN 46-4323935) reported 16 grants paid totaling $170,350 to 15 recipients in tax years 2018–2025, on Form 990-PF, Part XV. Derived from IRS e-file data, dataset version 2026.09.0, built 2026-09-03.
Grants paid
$170,350
16 grants
Recipients
15
distinct organizations
Tax years
2018–2025
2 filings in the corpus
By tax year
| Tax year | Grants paid | Amount paid | Approved for future |
|---|---|---|---|
| 2018 | 6 | $110,350 | — |
| 2025 | 10 | $60,000 | — |
Top recipients
The 15 recipients receiving the most from Gigi & Averell H Mortimer Foundation, by grants paid, out of 15 distinct recipients.
| Recipient | Match | Location | Grants | Total paid | Latest year |
|---|---|---|---|---|---|
| The Centre for Discovery 14-1395426 | C | Harris, NY | 2 | $105,000 | 2025 |
| Brandywire Conservancy & Museum of Art | U | Chadds Ford, PA | 1 | $15,000 | 2025 |
| Palm Beach Zoo & Conservation Society | U | West Palm Beach, FL | 1 | $10,000 | 2025 |
| Tory Burch Foundation 26-3660127 | B | New York, NY | 1 | $10,000 | 2025 |
| Cox Science Centre & Aquarium 59-0915177 | C | West Palm Beach, FL | 1 | $10,000 | 2025 |
| New York University 91-1842722 | B | New York, NY | 1 | $5,000 | 2018 |
| Common Sense Media 41-2024986 | B | San Francisco, CA | 1 | $2,500 | 2018 |
| Peconic Land Trust 11-2667021 | B | Southhampton, NY | 1 | $2,500 | 2025 |
| Orange County Historical Society 13-2971116 | B | Arden, NY | 1 | $2,500 | 2025 |
| The Everglades Foundation 59-3228899 | B | Palmetto Bay, FL | 1 | $2,500 | 2025 |
| Orphan Disease Pathway Project | U | Hartford, CT | 1 | $2,000 | 2018 |
| St Jude's Children Hospital | U | Memphis, TN | 1 | $1,500 | 2025 |
| Vanderbilt University | U | Nashville, TN | 1 | $1,000 | 2025 |
| Open Space Institute 52-1053406 | B | New York, NY | 1 | $600 | 2018 |
| The Bone Marrow Foundation 13-3674198 | D | New York, NY | 1 | $250 | 2018 |
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.
Every grant
All 16 grant rows this organization reported, most recent first.
| Tax year | Recipient | Match | Amount | Type | Purpose | Source filing |
|---|---|---|---|---|---|---|
| 2025 | Brandywire Conservancy & Museum of Art Chadds Ford, PA | U | $15,000 | paid | GENERAL SUPPORT | 202611289349102711 |
| 2025 | Cox Science Centre & Aquarium West Palm Beach, FL | C | $10,000 | paid | GENERAL SUPPORT | 202611289349102711 |
| 2025 | Palm Beach Zoo & Conservation Society West Palm Beach, FL | U | $10,000 | paid | GENERAL SUPPORT | 202611289349102711 |
| 2025 | Tory Burch Foundation New York, NY | B | $10,000 | paid | GENERAL SUPPPORT | 202611289349102711 |
| 2025 | The Centre for Discovery Harris, NY | C | $5,000 | paid | GENERAL SUPPORT | 202611289349102711 |
| 2025 | Orange County Historical Society Arden, NY | B | $2,500 | paid | GENERAL SUPPORT | 202611289349102711 |
| 2025 | Peconic Land Trust Southhampton, NY | B | $2,500 | paid | GENERAL SUPPORT | 202611289349102711 |
| 2025 | The Everglades Foundation Palmetto Bay, FL | B | $2,500 | paid | GENERAL SUPPORT | 202611289349102711 |
| 2025 | St Jude's Children Hospital Memphis, TN | U | $1,500 | paid | GENERAL SUPPORT | 202611289349102711 |
| 2025 | Vanderbilt University Nashville, TN | U | $1,000 | paid | GENERAL SUPPORT | 202611289349102711 |
| 2018 | The Center for Discovery Harris, NY | B | $100,000 | paid | General Support | 201941149349100209 |
| 2018 | New York University New York, NY | B | $5,000 | paid | General Support | 201941149349100209 |
| 2018 | Common Sense Media San Francisco, CA | B | $2,500 | paid | General Support | 201941149349100209 |
| 2018 | Orphan Disease Pathway Project Hartford, CT | U | $2,000 | paid | General Support | 201941149349100209 |
| 2018 | Open Space Institute New York, NY | B | $600 | paid | General Support | 201941149349100209 |
| 2018 | The Bone Marrow Foundation New York, NY | D | $250 | paid | General Support | 201941149349100209 |
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.
Source filings
Every figure above is traceable to one of these IRS e-file returns by its OBJECT_ID.
| Form | Tax year | Period end | Filed | Schema | IRS OBJECT_ID |
|---|---|---|---|---|---|
| 990PF | 2025 | 2025-12-31 | not stated | 2025v4.1 | 202611289349102711 |
| 990PF | 2018 | 2018-12-31 | not stated | 2018v3.1 | 201941149349100209 |
Derived from IRS Form 990-PF e-file XML; recipient identities from the IRS Exempt Organizations Business Master File. Dataset version 2026.09.0, built 2026-09-03. The same rows as Parquet: manifest; as JSON: /api/funders/464323935.json.
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.