Odonnell Iselin Foundation Inc
EIN 51-6016471 · files IRS 990-PF
Where it gives
By cause and by place, from its own returns.
By cause
The cause each recipient registered with the IRS
Mostly grants abroad and recipients without a US registration. Shown, never hidden.
By place
Dollars received, by the recipient's state
half the top state or more10–50%2–10%under 2%
Grants abroad and place not on file: 128 grants · $811.5k
Who it funds most
18 of its 23 grantees were funded in more than one year.
Odonnell Iselin Foundation Inc's own IRS 990-PF returns, as filed, in USD
Who funds the same organisations
Counted over its 23 largest grantees, leaving out fiscal sponsors and donor-advised funds, which share an address rather than a cause. A fact, not a partnership.
Its board and officers
From its latest return.
Form 990PF Part VIII, tax year 2023, filing 202413129349102126
Name and title as its own return lists them. No pay, no address. A photograph appears only where the person's own organisation or a free licence publishes one, credited beside it; otherwise none. Anyone can ask to be removed: hello@philanova.ai.
Its money
What it gave, held and paid, by year.
Giving by year
A year with no bar has no grants on file yet: its returns may not be loaded. It is not a year without giving.
Its returns8 filings
| Tax year | Form | Filing | Where to read it |
|---|---|---|---|
| 2025 | IRS 990-PF | 202601279349100030 | IRS batch file |
| 2024 | IRS 990-PF | 202531339349100918 | IRS batch file |
| 2023 | IRS 990-PF | 202413129349102126 | IRS batch file |
| 2022 | IRS 990-PF | 202341509349100114 | IRS batch file |
| 2021 | IRS 990-PF | 202213139349101846 | IRS batch file |
| 2020 | IRS 990-PF | 202123149349101512 | IRS batch file |
| 2018 | IRS 990-PF | 201923169349101272 | IRS batch file |
| 2017 | IRS 990-PF | 201803189349103055 | IRS batch file |
An IRS batch file holds many returns; the filing number finds this one inside it.
The record as filedEvery table this page has always shown, in full.open
Odonnell Iselin Foundation Inc made 243 grants across 2017–2025, totalling $1.4m as filed.
- Grants
- 243
- Total, as filed
- $1.4m
- Years
- 2017–2025
- Filed in
- USD
Who it funds
| Organisation | Grants | Total |
|---|---|---|
| ST TIMOTHY'S SCHOOL | 8 | $202.5k |
| WOODS HOLE OCEANOGRAPHIC INSTITUTE | 8 | $150.0k |
| NEW YORK BOTANICAL GARDEN | 5 | $120.0k |
| ST HILDA'S & ST HUGH'S SCHOOL | 7 | $75.0k |
| GREENWICH LAND TRUST INC | 6 | $70.0k |
| THE MONTESSORI SCHOOL | 7 | $67.0k |
| PLANNED PARENTHOOD OF CONNECTICUT | 4 | $65.0k |
| PLANNED PARENTHOOD OF NEW YORK CITY | 4 | $65.0k |
| THE MONTESSORI SCHOOL ENDOWMENT FUND | 6 | $65.0k |
| PLANNED PARENTHOOD OF GREATER NEW YORK | 4 | $45.0k |
| PLANNED PARENTHOOD OF SOUTHERN NEW ENGLAND | 4 | $45.0k |
| NORTH COUNTRY SCHOOL SCHOLARSHIP | 8 | $40.0k |
| ASPCA | 8 | $32.5k |
| CONNECTICUT FOOD BANK | 7 | $32.5k |
| REDDING LAND TRUST | 8 | $32.5k |
By year
| Year | Grants | Total |
|---|---|---|
| 2017 | 36 | $197.0k |
| 2018 | 25 | $111.5k |
| 2020 | 33 | $227.5k |
| 2021 | 32 | $176.5k |
| 2022 | 25 | $157.5k |
| 2023 | 31 | $198.5k |
| 2024 | 28 | $175.0k |
| 2025 | 33 | $196.5k |
Where this came from
Identifier US-EIN-516016471. Register: Internal Revenue Service (US). Machine-readable: JSON.
What this page does not know
- Wrong if: a figure recovered from a subtotal is read as the sum of the recovered rows. A subtotal divides onto a whole penny whatever its parts did, so rows the per-row rule refuses are inside these figures.
- What they say they exist to do
- What each grant was for
- What they fund, by theme
- Balance sheet and financials
- Who runs it
- Whether they accept proposals
- Their own record on the register
- No website on file
- Leadership not yet identified