Nonprofit · EIN 92-2824291
HARTONG FAMILY FOUNDATION
Tax-exempt · GREENWICH, CT 06830
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-PF | $3,184,735 | $327,425 | $2,857,310 | $5,934,552 | $1,032 | $5,933,520 |
| December 31, 2024 | 990-PF | $136,706 | $213,478 | -$76,772 | $3,080,316 | $4,106 | $3,076,210 |
| December 31, 2023 | 990-PF | $3,208,147 | $55,165 | $3,152,982 | $3,152,982 | $0 | $3,152,982 |
Financial details: 990-PF for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $3,000,000
- Dividends
- $83,264
- Interest
- $9,690
- Net gain from sales of assets
- $91,781
Expenses
- Grants and similar amounts paid
- $222,788
- Compensation of officers, directors and key employees
- $66,000
- Disbursements for charitable purposes
- $294,367
- Excise tax on investment income
- $2,153
Balance sheet and other
- Total assets, start of year
- $3,080,316
- Total assets, end of year
- $5,934,552
- Total liabilities, end of year
- $1,032
- Net assets, end of year
- $5,933,520
- Fair market value of assets
- $6,887,445
- Qualifying distributions
- $294,367
- Net investment income
- $184,735
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990-PF for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| PIETER R HARTONG 8 SOUND SHORE DRIVE SUITE 265, GREENWICH, CT 06830 | TRUSTEE/EXECUTIVE DIRECTOR | 17 | $66,000 |
| HENDRICK J HARTONG JR 8 SOUND SHORE DRIVE SUITE 265, GREENWICH, CT 06830 | TRUSTEE | 1 | $0 |
| HENDRICK J HARTONG III 8 SOUND SHORE DRIVE SUITE 265, GREENWICH, CT 06830 | TRUSTEE | 0.25 | $0 |
| BROOKE HASTINGS 8 SOUND SHORE DRIVE SUITE 265, GREENWICH, CT 06830 | COO | 15 | $0 |
990-PF for the year ended December 31, 2024: 4 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| PIETER R HARTONG 8 SOUND SHORE DRIVE SUITE 265, GREENWICH, CT 06830 | TRUSTEE/EXECUTIVE DIRECTOR | 17 | $60,000 |
| HENDRICK J HARTONG JR 8 SOUND SHORE DRIVE SUITE 265, GREENWICH, CT 06830 | TRUSTEE | 1 | $0 |
| HENDRICK J HARTONG III 8 SOUND SHORE DRIVE SUITE 265, GREENWICH, CT 06830 | TRUSTEE | 0.25 | $0 |
| BROOKE HASTINGS 8 SOUND SHORE DRIVE SUITE 265, GREENWICH, CT 06830 | COO | 15 | $0 |
990-PF for the year ended December 31, 2023: 3 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| PIETER R HARTONG 46 KENSETT LANE, DARIEN, CT 06820 | TRUSTEE/OFFICER | 17 | $15,000 |
| HENDRIK J HARTONG JR 8 SOUND SHORE DRIVE SUITE 265, GREENWICH, CT 06830 | TRUSTEE | 1 | $0 |
| HENDRIK J HARTONG III 8 SOUND SHORE DRIVE SUITE 265, GREENWICH, CT 06830 | TRUSTEE | 0.25 | $0 |
Address and contacts
- Address (IRS master file)
- 8 SOUND SHORE DR STE 265, GREENWICH, CT 06830-7272
- Signed the 990-PF
- HENDRIK J HARTONG JR, TRUSTEE
- Phone
- (203) 622-1790
- Return prepared by
- REHMANN ROBSON LLC
What it must file and when
IRS records say it files Form 990-PF. Private foundations file every year. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | December 31, 2025 | May 15, 2026 | 990-PF on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990-PF on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990-PF on file |
IRS record
- EIN
- 92-2824291
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Private non-operating foundation
- Donations deductible (Pub 78)
- Private foundation, 30% limit
- Exempt since
- 2023
- Accounting year ends
- December
- Files
- Form 990-PF
- Category (NTEE)
- Philanthropy, voluntarism and grantmaking foundations (T22)
- Assets (IRS master file)
- $5,934,552
- Income (IRS master file)
- $3,560,287
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-PF | December 2025 | $3,184,735 | $327,425 | $5,934,552 | XML |
| 990-PF | December 2024 | $136,706 | $213,478 | $3,080,316 | XML |
| 990-PF | December 2023 | $3,208,147 | $55,165 | $3,152,982 | XML |
990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 92-2824291).
Questions about HARTONG FAMILY FOUNDATION
- What is the EIN of HARTONG FAMILY FOUNDATION?
- The employer identification number (EIN) of HARTONG FAMILY FOUNDATION is 92-2824291.
- Is HARTONG FAMILY FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2023.
- Are donations to HARTONG FAMILY FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Private foundation, 30% limit).
- Which annual return does HARTONG FAMILY FOUNDATION file?
- Form 990-PF. Private foundations file every year.
- When is the next return of HARTONG FAMILY FOUNDATION due?
- The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did HARTONG FAMILY FOUNDATION last file with the IRS?
- The latest return in the IRS public files is the 990-PF for the year ended December 2025.
- Who are the officers and directors of HARTONG FAMILY FOUNDATION?
- The 990-PF for the year ended December 31, 2025 lists 4 people; 1 received compensation from the organization, the highest $66,000 (PIETER R HARTONG, TRUSTEE/EXECUTIVE DIRECTOR).
- How much revenue does HARTONG FAMILY FOUNDATION have?
- On its 990-PF for the year ended December 31, 2025 it reported revenue of $3,184,735, expenses of $327,425 and total assets of $5,934,552 at year end.
Other nonprofits in GREENWICH
- ZOOM FOUNDATION EIN 06-1600601 · last filed 990-PF for 2025
- BERKLEY FOUNDATION FOR HISTORICAL BOOKS AND DOCUMENTS EIN 99-5033731 · last filed 990-PF for 2024
- JANE AND DANIEL OCH FAMILY FOUNDATION EIN 26-3791338 · last filed 990-PF for 2024
- BURSKY FAMILY FOUNDATION EIN 33-1531703 · last filed 990-PF for 2024
- LONE PINE FOUNDATION INC EIN 06-1637040 · last filed 990-PF for 2024
- AZCAT FOUNDATION EIN 81-4754238 · last filed 990-PF for 2025
- MICHAEL AND CAROL LOWENSTEIN FOUNDATION INC EIN 20-5953051 · last filed 990-PF for 2025
- S & L MARX FOUNDATION INC EIN 20-0677535 · last filed 990-PF for 2024
All nonprofits in GREENWICH · Connecticut · Philanthropy, voluntarism and grantmaking foundations