Grants paid by The Hemmerdinger Foundation C/O Atco Properties & Management
EIN 13-6278506 · New York, NY · Form 990-PF, Part XV
The Hemmerdinger Foundation C/O Atco Properties & Management of New York, NY (EIN 13-6278506) reported 58 grants paid totaling $2,778,990 to 21 recipients in tax years 2018–2024, on Form 990-PF, Part XV. Derived from IRS e-file data, dataset version 2026.09.0, built 2026-09-03.
Grants paid
$2,778,990
58 grants
Recipients
21
distinct organizations
Tax years
2018–2024
7 filings in the corpus
By tax year
| Tax year | Grants paid | Amount paid | Approved for future |
|---|---|---|---|
| 2018 | 13 | $653,925 | — |
| 2019 | 11 | $573,500 | — |
| 2020 | 7 | $522,500 | — |
| 2021 | 8 | $465,565 | — |
| 2022 | 9 | $301,000 | — |
| 2023 | 7 | $172,500 | — |
| 2024 | 3 | $90,000 | — |
Top recipients
The 21 recipients receiving the most from The Hemmerdinger Foundation C/O Atco Properties & Management, by grants paid, out of 21 distinct recipients.
| Recipient | Match | Location | Grants | Total paid | Latest year |
|---|---|---|---|---|---|
| Harlem Academy 56-2454573 | C | New York, NY | 6 | $1,297,750 | 2023 |
| NYC Police Foundation | U | New York, NY | 5 | $305,565 | 2022 |
| Middlebridge School 26-3113890 | B | Narragansett, RI | 4 | $225,000 | 2022 |
| Williams College 04-2104847 | B | Williamstown, MA | 4 | $150,000 | 2022 |
| Museum of Jewish Heritage 45-5182945 | D | New York, NY | 4 | $130,000 | 2022 |
| Horace Mann School 13-1740455 | B | Bronx, NY | 7 | $110,000 | 2024 |
| New York City Police Foundation 13-2711338 | B | New York, NY | 2 | $110,000 | 2024 |
| Citizens Budget Commission 13-0576141 | B | New York, NY | 3 | $87,450 | 2022 |
| The Nightingale-Bamford School 13-1106710 | B | New York, NY | 2 | $75,000 | 2019 |
| The Carnegie Hall Corporation 13-1923626 | B | New York, NY | 2 | $50,000 | 2019 |
| Brown University | U | Providence, RI | 2 | $45,000 | 2019 |
| Tulane University | U | New Orleans, LA | 4 | $40,000 | 2023 |
| Hassenfield Children's Hospital - Nyu Langone | U | New York, NY | 3 | $40,000 | 2021 |
| Nyu Langone Health 47-2613531 | C | New York, NY | 2 | $25,700 | 2022 |
| New York Philharmonic 13-1664054 | B | New York, NY | 1 | $25,000 | 2018 |
| Naval War College Foundation Inc 23-7063084 | B | Newport, RI | 1 | $22,525 | 2018 |
| Empire Center for Public Policy 46-1987418 | C | Albany, NY | 1 | $10,000 | 2019 |
| Syracuse University | U | Syracuse, NY | 2 | $10,000 | 2024 |
| Realty Foundation of New York | U | New York, NY | 1 | $7,500 | 2018 |
| Congregation Emanu-El of the City of New York | U | New York, NY | 1 | $7,500 | 2023 |
| Kenyon College | U | Gambier, OH | 1 | $5,000 | 2023 |
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 58 grant rows this organization reported, most recent first.
| Tax year | Recipient | Match | Amount | Type | Purpose | Source filing |
|---|---|---|---|---|---|---|
| 2024 | New York City Police Foundation New York, NY | B | $75,000 | paid | GENERAL SUPPORT | 202502689349101425 |
| 2024 | Horace Mann School Bronx, NY | B | $10,000 | paid | GENERAL SUPPORT | 202502689349101425 |
| 2024 | Syracuse University Syracuse, NY | U | $5,000 | paid | GENERAL SUPPORT | 202502689349101425 |
| 2023 | Harlem Academy New York, NY | B | $100,000 | paid | GENERAL SUPPORT | 202431359349100328 |
| 2023 | New York City Police Foundation New York, NY | B | $35,000 | paid | GENERAL SUPPORT | 202431359349100328 |
| 2023 | Horace Mann School Bronx, NY | B | $10,000 | paid | GENERAL SUPPORT | 202431359349100328 |
| 2023 | Tulane University New Orleans, LA | U | $10,000 | paid | GENERAL UNIVERSITY SUPPORT | 202431359349100328 |
| 2023 | Congregation Emanu-El of the City of New York New York, NY | U | $7,500 | paid | GENERAL SUPPORT | 202431359349100328 |
| 2023 | Syracuse University Syracuse, NY | U | $5,000 | paid | GENERAL SUPPORT | 202431359349100328 |
| 2023 | Kenyon College Gambier, OH | U | $5,000 | paid | GENERAL SUPPORT | 202431359349100328 |
| 2022 | Harlem Academy New York, NY | C | $100,000 | paid | GENERAL OPERATIONS | 202313189349104741 |
| 2022 | Middlebridge School Narragansett, RI | B | $50,000 | paid | GENERAL OPERATIONS | 202313189349104741 |
| 2022 | NYC Police Foundation New York, NY | U | $50,000 | paid | GENERAL OPERATIONS | 202313189349104741 |
| 2022 | Citizens Budget Commission New York, NY | B | $36,000 | paid | GENERAL OPERATIONS | 202313189349104741 |
| 2022 | Williams College Williamstown, MA | B | $25,000 | paid | GENERAL OPERATIONS | 202313189349104741 |
| 2022 | Nyu Langone Health New York, NY | C | $15,000 | paid | GENERAL OPERATIONS | 202313189349104741 |
| 2022 | Horace Mann School Bronx, NY | B | $10,000 | paid | GENERAL OPERATIONS | 202313189349104741 |
| 2022 | Tulane University New Orleans, LA | U | $10,000 | paid | GENERAL OPERATIONS | 202313189349104741 |
| 2022 | Museum of Jewish Heritage New York, NY | D | $5,000 | paid | GENERAL OPERATIONS | 202313189349104741 |
| 2021 | Harlem Academy New York, NY | C | $225,000 | paid | GENERAL OPERATIONS | 202241309349102319 |
| 2021 | Middlebridge School Narragansett, RI | B | $75,000 | paid | GENERAL OPERATIONS | 202241309349102319 |
| 2021 | NYC Police Foundation New York, NY | U | $55,565 | paid | GENERAL OPERATIONS | 202241309349102319 |
| 2021 | Williams College Williamstown, MA | B | $50,000 | paid | GENERAL OPERATIONS | 202241309349102319 |
| 2021 | Museum of Jewish Heritage New York, NY | D | $25,000 | paid | GENERAL OPERATIONS | 202241309349102319 |
| 2021 | Hassenfield Children's Hospital - Nyu Langone New York, NY | U | $15,000 | paid | GENERAL OPERATIONS | 202241309349102319 |
| 2021 | Tulane University New Orleans, LA | U | $10,000 | paid | GENERAL OPERATIONS | 202241309349102319 |
| 2021 | Horace Mann School Bronx, NY | B | $10,000 | paid | GENERAL OPERATIONS | 202241309349102319 |
| 2020 | Harlem Academy New York, NY | C | $375,000 | paid | GENERAL OPERATIONS | 202101339349102705 |
| 2020 | NYC Police Foundation New York, NY | U | $50,000 | paid | GENERAL OPERATIONS | 202101339349102705 |
| 2020 | Horace Mann School Bronx, NY | B | $25,000 | paid | GENERAL OPERATIONS | 202101339349102705 |
| 2020 | Middlebridge School Narragansett, RI | B | $25,000 | paid | GENERAL OPERATIONS | 202101339349102705 |
| 2020 | Williams College Williamstown, MA | B | $25,000 | paid | GENERAL OPERATIONS | 202101339349102705 |
| 2020 | Hassenfield Children's Hospital - Nyu Langone New York, NY | U | $12,500 | paid | GENERAL OPERATIONS | 202101339349102705 |
| 2020 | Tulane University New Orleans, LA | U | $10,000 | paid | GENERAL OPERATIONS | 202101339349102705 |
| 2019 | Harlem Academy New York, NY | C | $225,000 | paid | GENERAL OPERATIONS | 202011709349100421 |
| 2019 | NYC Police Foundation New York, NY | U | $75,000 | paid | GENERAL OPERATIONS | 202011709349100421 |
| 2019 | Middlebridge School Narragansett, RI | B | $75,000 | paid | GENERAL OPERATIONS | 202011709349100421 |
| 2019 | Museum of Jewish Heritage New York, NY | D | $50,000 | paid | GENERAL OPERATIONS | 202011709349100421 |
| 2019 | Citizens Budget Commission Inc New York, NY | C | $26,000 | paid | GENERAL OPERATIONS | 202011709349100421 |
| 2019 | The Nightingale-Bamford School New York, NY | B | $25,000 | paid | GENERAL OPERATIONS | 202011709349100421 |
| 2019 | Brown University Providence, RI | U | $25,000 | paid | GENERAL OPERATIONS | 202011709349100421 |
| 2019 | The Carnegie Hall Corporation New York, NY | B | $25,000 | paid | GENERAL OPERATIONS | 202011709349100421 |
| 2019 | Horace Mann School Bronx, NY | B | $25,000 | paid | GENERAL OPERATIONS | 202011709349100421 |
| 2019 | Hassenfield Children's Hospital - Nyu Langone New York, NY | U | $12,500 | paid | GENERAL OPERATIONS | 202011709349100421 |
| 2019 | Empire Center for Public Policy Albany, NY | C | $10,000 | paid | GENERAL OPERATIONS | 202011709349100421 |
| 2018 | Harlem Academy New York, NY | C | $272,750 | paid | GENERAL OPERATIONS | 201901339349101540 |
| 2018 | NYC Police Foundation New York, NY | U | $75,000 | paid | GENERAL OPERATIONS | 201901339349101540 |
| 2018 | Williams College Williamstown, MA | B | $50,000 | paid | GENERAL OPERATIONS | 201901339349101540 |
| 2018 | Museum of Jewish Heritage New York, NY | D | $50,000 | paid | GENERAL OPERATIONS | 201901339349101540 |
| 2018 | The Nightingale-Bamford School New York, NY | B | $50,000 | paid | GENERAL OPERATIONS | 201901339349101540 |
| 2018 | Citizens Budget Commission Inc New York, NY | C | $25,450 | paid | GENERAL OPERATIONS | 201901339349101540 |
| 2018 | New York Philharmonic New York, NY | B | $25,000 | paid | GENERAL OPERATIONS | 201901339349101540 |
| 2018 | The Carnegie Hall Corporation New York, NY | B | $25,000 | paid | GENERAL OPERATIONS | 201901339349101540 |
| 2018 | Naval War College Foundation Inc Newport, RI | B | $22,525 | paid | GENERAL OPERATIONS | 201901339349101540 |
| 2018 | Horace Mann School Bronx, NY | B | $20,000 | paid | GENERAL OPERATIONS | 201901339349101540 |
| 2018 | Brown University Providence, RI | U | $20,000 | paid | GENERAL OPERATIONS | 201901339349101540 |
| 2018 | Nyu Langone Health New York, NY | C | $10,700 | paid | GENERAL OPERATIONS | 201901339349101540 |
| 2018 | Realty Foundation of New York New York, NY | U | $7,500 | paid | GENERAL OPERATIONS | 201901339349101540 |
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 | 2024 | 2024-12-31 | not stated | 2024v5.2 | 202502689349101425 |
| 990PF | 2023 | 2023-12-31 | not stated | 2023v5.0 | 202431359349100328 |
| 990PF | 2022 | 2022-12-31 | not stated | 2022v5.0 | 202313189349104741 |
| 990PF | 2021 | 2021-12-31 | not stated | 2021v4.2 | 202241309349102319 |
| 990PF | 2020 | 2020-12-31 | not stated | 2020v4.1 | 202101339349102705 |
| 990PF | 2019 | 2019-12-31 | not stated | 2019v5.1 | 202011709349100421 |
| 990PF | 2018 | 2018-12-31 | not stated | 2018v3.1 | 201901339349101540 |
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/136278506.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.