HALVORSEN FAMILY FOUNDATION
Cite this
Plain text HALVORSEN FAMILY FOUNDATION. furp.org, nonprofit organization profile, tax years 2010–2024. https://furp.org/org/halvorsen-family-foundation-061603158. Retrieved 2026-10-29.
APA furp.org. (n.d.). HALVORSEN FAMILY FOUNDATION [Nonprofit organization profile; tax years 2010–2024]. Retrieved October 29, 2026, from https://furp.org/org/halvorsen-family-foundation-061603158
MLA “HALVORSEN FAMILY FOUNDATION.” furp.org, tax years 2010–2024, https://furp.org/org/halvorsen-family-foundation-061603158. Accessed 29 Oct. 2026.
Retrieved 2026-10-29; covers tax years 2010–2024. Data: furp.org, CC BY 4.0.
2024 · Form 990PF · revenue $35.2M · expenses $34.5M · assets $365.4M
- Also known as
- C/O OLE ANDREAS HALVORSEN TRUSTEE
- EIN
- 06-1603158
- Address
- VIKING 600 WASHINGTON BLVD 11TH F, STAMFORD, CT 06901-0000
- NTEE code
- T90
- Exempt type
- 501(c)(3): charitable, religious, educational, scientific or literary (trust)
- Ruling date
- February 2002 (when the IRS recognized its exemption)
- IRS status
- Exempt (unconditional) (IRS Business Master File) IRS data ↗
- Tax-deductible donations
- Yes: listed in IRS Publication 78 (private foundation) Pub 78 ↗
- Foundation status
- Private non-operating foundation
- Cross-check
- ProPublica Nonprofit Explorer
Each tax year counts once: when a return was amended, only the latest return for that period is used below (superseded returns stay listed, greyed, under Finances).
People paid by the organization
None of the 2 people listed on these returns reported compensation from the organization. They are listed below.
Officers and directors, no compensation reported
2 people listed on the returns with $0 (or no amount) in every compensation column: current people first. Hours are as filed on the latest return each person appears on.
| Name | Latest title | Years | Hrs/wk (latest) | Compensation | Organizations |
|---|---|---|---|---|---|
| Ole Andreas Halvorsen | TRUSTEE | 2010-2024 | 0 | $0 reported | 1 |
| Diane K Halvorsen | TRUSTEE | 2010-2024 | 0 | $0 reported | 1 |
People by year
2024 · 2 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| OLE ANDREAS HALVORSEN | TRUSTEE | 0 | $0 | - | $0 | $0 | 1 |
| DIANE K HALVORSEN | TRUSTEE | 0 | $0 | - | $0 | $0 | 1 |
2023 · 2 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| OLE ANDREAS HALVORSEN | TRUSTEE | 0 | $0 | - | $0 | $0 | 1 |
| DIANE K HALVORSEN | TRUSTEE | 0 | $0 | - | $0 | $0 | 1 |
2022 · 2 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| OLE ANDREAS HALVORSEN | TRUSTEE | 0 | $0 | - | $0 | $0 | 1 |
| DIANE K HALVORSEN | TRUSTEE | 0 | $0 | - | $0 | $0 | 1 |
2021 · 2 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| OLE ANDREAS HALVORSEN | TRUSTEE | 0 | $0 | - | $0 | $0 | 1 |
| DIANE K HALVORSEN | TRUSTEE | 0 | $0 | - | $0 | $0 | 1 |
2020 · 2 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| OLE ANDREAS HALVORSEN | TRUSTEE | 0 | $0 | - | $0 | $0 | 1 |
| DIANE K HALVORSEN | TRUSTEE | 0 | $0 | - | $0 | $0 | 1 |
2019 · 2 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| OLE ANDREAS HALVORSEN | TRUSTEE | 0 | $0 | - | $0 | $0 | 1 |
| DIANE K HALVORSEN | TRUSTEE | 0 | $0 | - | $0 | $0 | 1 |
2018 · 2 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| OLE ANDREAS HALVORSEN | TRUSTEE | 0 | $0 | - | $0 | $0 | 1 |
| DIANE K HALVORSEN | TRUSTEE | 0 | $0 | - | $0 | $0 | 1 |
2017 · 2 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| OLE ANDREAS HALVORSEN | TRUSTEE | 0 | $0 | - | $0 | $0 | 1 |
| DIANE K HALVORSEN | TRUSTEE | 0 | $0 | - | $0 | $0 | 1 |
2016 · 2 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| OLE ANDREAS HALVORSEN | TRUSTEE | 0 | $0 | - | $0 | $0 | 1 |
| DIANE K HALVORSEN | TRUSTEE | 0 | $0 | - | $0 | $0 | 1 |
2015 · 2 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| OLE ANDREAS HALVORSEN | TRUSTEE | 0 | $0 | - | $0 | $0 | 1 |
| DIANE K HALVORSEN | TRUSTEE | 0 | $0 | - | $0 | $0 | 1 |
2010 · 2 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| OLE ANDREAS HALVORSEN | TRUSTEE | 0 | $0 | - | $0 | $0 | 1 |
| DIANE K HALVORSEN | TRUSTEE | 0 | $0 | - | $0 | $0 | 1 |
Highest-paid independent contractors
No independent contractors reported.
Who the money went to
Grants this organization reported paying: Schedule I Part II of the Form 990, or the grants-paid list on the 990-PF. Open a year for every recipient. Recipients link to their own page when the grant names an EIN we have (990-PF grants list no EIN, so those link only on an exact, unique name and state). Grants to individuals are counted; their names are not shown.
2024 · 33 grants to organizations · $34.5M
2023 · 18 grants to organizations · $20.9M
2022 · 24 grants to organizations · $14.6M
2021 · 28 grants to organizations · $13.3M
2020 · 9 grants to organizations · $9.3M
2019 · 7 grants to organizations · $7.1M
2018 · 1 grant to organizations · $7.5M
2017 · 1 grant to organizations · $440K
2010 · 6 grants to organizations · $5.7M
Negative amounts are returned or refunded grants; they are listed last and left out of the totals of grants paid.
Who gave
Contributors listed on Schedule B of the Form 990-PF: name, city and state as filed (street addresses are not shown), with total and noncash contributions for the year. A link to an organization's page is tagged Fuzzy with its name-similarity score (0 to 1) when it rests on name and state; Schedule B lists no EIN, so no link here is an exact identifier match.
2024 · 1 contributor · $34.5M
| # | Contributor | Type | City, state | Total | Noncash | Source |
|---|---|---|---|---|---|---|
| 1 | OLE ANDREAS HALVORSEN | Person | DARIEN, CT | $34,511,225 | - | Form 990PF Sch. B, 2024 · filing |
2023 · 1 contributor · $20.9M
| # | Contributor | Type | City, state | Total | Noncash | Source |
|---|---|---|---|---|---|---|
| 1 | OLE ANDREAS HALVORSEN | Person | DARIEN, CT | $20,910,287 | - | Form 990PF Sch. B, 2023 · filing |
2022 · 1 contributor · $2.1M
| # | Contributor | Type | City, state | Total | Noncash | Source |
|---|---|---|---|---|---|---|
| 1 | OLE ANDREAS HALVORSEN | Person | DARIEN, CT | $2,093,450 | - | Form 990PF Sch. B, 2022 · filing |
2021 · 1 contributor · $4.0M
| # | Contributor | Type | City, state | Total | Noncash | Source |
|---|---|---|---|---|---|---|
| 1 | OLE ANDREAS HALVORSEN | Person | DARIEN, CT | $4,015,116 | - | Form 990PF Sch. B, 2021 · filing |
2020 · 1 contributor · $4.3M
| # | Contributor | Type | City, state | Total | Noncash | Source |
|---|---|---|---|---|---|---|
| 1 | OLE ANDREAS HALVORSEN | Person | DARIEN, CT | $4,266,900 | - | Form 990PF Sch. B, 2020 · filing |
2019 · 1 contributor · $7.1M
| # | Contributor | Type | City, state | Total | Noncash | Source |
|---|---|---|---|---|---|---|
| 1 | OLE ANDREAS HALVORSEN | Person | DARIEN, CT | $7,134,171 | - | Form 990PF Sch. B, 2019 · filing |
2018 · 1 contributor · $16K
| # | Contributor | Type | City, state | Total | Noncash | Source |
|---|---|---|---|---|---|---|
| 1 | OLE ANDREAS HALVORSEN | Person | DARIEN, CT | $16,500 | - | Form 990PF Sch. B, 2018 · filing |
2017 · 1 contributor · $10K
| # | Contributor | Type | City, state | Total | Noncash | Source |
|---|---|---|---|---|---|---|
| 1 | OLE ANDREAS HALVORSEN | Person | DARIEN, CT | $10,500 | - | Form 990PF Sch. B, 2017 · filing |
2016 · 1 contributor · $11K
| # | Contributor | Type | City, state | Total | Noncash | Source |
|---|---|---|---|---|---|---|
| 1 | OLE ANDREAS HALVORSEN | Organization or other | DARIEN, CT | $11,100 | - | Form 990PF Sch. B, 2016 · filing |
2015 · 1 contributor · $24K
| # | Contributor | Type | City, state | Total | Noncash | Source |
|---|---|---|---|---|---|---|
| 1 | OLE ANDREAS HALVORSEN | Person | DARIEN, CT | $23,688 | - | Form 990PF Sch. B, 2015 · filing |
2010 · 2 contributors · $398K
Contributors listed here are as reported on the filing. Unusual is not the same as improper. Many of these patterns have ordinary explanations. Check the filing.
Finances
Newest first. Each filing: its name on one row, its figures on the row beneath. Greyed filings are superseded by a later return for the same period and are left out everywhere else on this page.
| Revenue | Expenses | Assets | Net assets | Contributions | Program revenue | Officer pay | Employees | Volunteers |
|---|---|---|---|---|---|---|---|---|
| 2024 · Form 990PF | ||||||||
| $35,169,177 | $34,534,700 | $365,424,634 | $365,424,634 | $34,511,225 | - | $0 | - | - |
| 2023 · Form 990PF | ||||||||
| $21,439,948 | $21,087,352 | $322,046,466 | $322,046,466 | $20,910,287 | - | $0 | - | - |
| 2022 · Form 990PF | ||||||||
| $15,475,263 | $14,608,500 | $265,562,093 | $265,182,093 | $2,093,450 | - | $0 | - | - |
| 2021 · Form 990PF | ||||||||
| $4,015,208 | $13,315,800 | $235,306,066 | $235,306,066 | $4,015,116 | - | $0 | - | - |
| 2020 · Form 990PF | ||||||||
| $4,266,900 | $9,324,900 | $301,427,167 | $301,427,167 | $4,266,900 | - | $0 | - | - |
| 2019 · Form 990PF | ||||||||
| $7,138,093 | $7,150,382 | $247,485,930 | $247,485,930 | $7,134,171 | - | $0 | - | - |
| 2018 · Form 990PF | ||||||||
| $2,624,910 | $7,468,678 | $184,722,221 | $184,722,221 | $16,500 | - | $0 | - | - |
| 2017 · Form 990PF | ||||||||
| $137,184 | $450,700 | $152,925,546 | $152,925,546 | $10,500 | - | $0 | - | - |
| 2016 · Form 990PF | ||||||||
| $11,100 | $11,100 | $146,123,798 | $146,123,798 | $11,100 | - | $0 | - | - |
| 2015 · Form 990PF | ||||||||
| $23,705 | $23,688 | $120,050,688 | $120,050,688 | $23,688 | - | $0 | - | - |
| 2010 · Form 990PF | ||||||||
| $2,767,981 | $5,739,402 | $16,240,974 | $16,240,974 | - | - | $0 | - | - |
Funders of this organization
Not reported: no grants to this organization appear in the filings we have (tax years 2010 to 2025).
Similar organizations
Ranked without any AI: same NTEE code first, then the same NTEE group; then revenue within 2x, 5x or 10x; then the same state; then similar name and mission text. Same state only · More (100)
| Organization | State | NTEE | Latest revenue | Latest expenses | Top-paid title | Top pay | Why similar |
|---|---|---|---|---|---|---|---|
| MICKY ELLIOTT FAMILY FOUNDATION | TX | T90 | $39,499,085 | $1,562,930 | PRESIDENT | $0 | Same NTEE code T90, revenue within 2x, similar name |
| THE LIEGL FAMILY FOUNDATION INC | IL | T90 | $26,578,059 | $1,487,329 | PRESIDENT | $0 | Same NTEE code T90, revenue within 2x, similar name |
| BLUHM FAMILY CHARITABLE FOUNDATION | IL | T90 | $24,166,969 | $13,206,647 | TRUSTEE | $0 | Same NTEE code T90, revenue within 2x |
| ADP FOUNDATION | NJ | T90 | $20,758,337 | $17,748,188 | TRUSTEE | $0 | Same NTEE code T90, revenue within 2x |
| BNSF FOUNDATION | TX | T90 | $28,277,994 | $7,060,666 | PRESIDENT & DIRECTOR | $0 | Same NTEE code T90, revenue within 2x |
| LYNCH FOUNDATION | MA | T90 | $31,959,328 | $11,135,719 | EXECUTIVE DIRECTOR | $675,695 | Same NTEE code T90, revenue within 2x |
| RESONANCE FOUNDATION | NY | T90 | $19,301,996 | $809,783 | TRUSTEE | $0 | Same NTEE code T90, revenue within 2x |
| TENET HEALTHCARE FOUNDATION | TX | T90 | $21,065,169 | $1,669,148 | BOARD MEMBER | $0 | Same NTEE code T90, revenue within 2x |
| LEONARD & BERYL BUCK FOUNDATION | MO | T90 | $62,821,444 | $42,648,171 | INVESTMENT TRUSTEE | $0 | Same NTEE code T90, revenue within 2x |
| MITCHELL WOLFSON SR FOUNDATION | FL | T90 | $48,940,011 | $16,293,149 | TRUSTEE | $200,000 | Same NTEE code T90, revenue within 2x |
| LAURA & ISAAC PERLMUTTER FOUNDATION INC | FL | T90 | $24,972,343 | $22,078,276 | DIRECTOR, TREASURER - DECEASED 6/6/25 | $100,000 | Same NTEE code T90, revenue within 2x |
| ROCKEFELLER FAMILY FUND INC | NY | T90 | $50,100,215 | $48,182,224 | DIRECTOR & SECRETARY | $849,232 | Same NTEE code T90, revenue within 2x |
| HESS PHILANTHROPIC FUND | NY | T90 | $21,800,580 | $20,834,954 | DIRECTOR | $0 | Same NTEE code T90, revenue within 2x |
| LAWYERS TRUST FUND OF ILLINOIS | IL | T90 | $47,351,899 | $30,659,681 | EXECUTIVE DIRECTOR | $224,158 | Same NTEE code T90, revenue within 2x |
| GORDON CHRISTIAN TRUST | MI | T90 | $56,062,484 | $30,810,662 | TOP FINANCIAL OFFICIAL | $0 | Same NTEE code T90, revenue within 2x |
| THOMAS E RILEY CHARITABLE TR | NY | T90 | $35,225,615 | $487,924 | TRUSTEE | $0 | Same NTEE code T90, revenue within 2x |
| THE GLOBAL ORPHAN PROJECT INC | MO | T90 | $32,340,298 | $26,416,435 | PRESIDENT, CAREPORTAL | $145,432 | Same NTEE code T90, revenue within 2x |
| REA CHARITABLE TRUST | OH | T90 | $31,644,424 | $6,986,864 | TRUSTEE | $135,840 | Same NTEE code T90, revenue within 2x |
| JOHN G KENEDY JR CHARITABLE TR -SURFACE ESTATE TR | TX | T90 | $20,252,291 | $6,830,890 | JO ANN WOFFORD, ADMINISTRATOR | $213,363 | Same NTEE code T90, revenue within 2x |
| LETA MCFARLIN CHAPMAN MEMORIAL TR | OK | T90 | $18,334,462 | $17,597,673 | CORPORATE TRUSTEE | $1,077,513 | Same NTEE code T90, revenue within 2x |
| J A & LETA M CHAPMAN CHARITABLE TR | OK | T90 | $67,492,246 | $61,617,259 | CORPORATE TRUSTEE | $3,786,759 | Same NTEE code T90, revenue within 2x |
| HOMETOWN FOUNDATION INC | CT | T90 | $7,402,037 | $6,384,301 | PRESIDENT | $0 | Same NTEE code T90, revenue within 5x, same state |
| LYFORD CAY FOUNDATION INC | CT | T90 | $7,036,988 | $2,439,883 | EXECUTIVE DIRECTOR | $191,336 | Same NTEE code T90, revenue within 5x, same state |
| NOBBS FAMILY FOUNDATION | CA | T90 | $11,087,019 | $8,913,977 | TRUSTEE | $189,271 | Same NTEE code T90, revenue within 5x, similar name |
| TOWLE FAMILY FOUNDATION | CO | T90 | $10,048,335 | $2,944,097 | President | $0 | Same NTEE code T90, revenue within 5x, similar name |
Who funds organizations like this
Grantors that funded the 100 most similar organizations. Ranked by total given to them. Foundations (990-PF) and donor-advised fund sponsors only. Same matching as Funders above (by EIN, or by name for foundations).
The full list · all similar organizations
Where the money went
Every expense line on each return, biggest first: Form 990 Part IX (with its program, management and fundraising columns), 990-EZ Part I, or 990-PF Part I. Event marks lines the organization itself describes as events. “Events” in each summary adds those lines, conferences and meetings, and the direct costs of fundraising events. Unusual is not the same as improper. Many of these patterns have ordinary explanations. Check the filing.
2024 · Form 990PF · $34,534,700 spent · pay $0 · grants $34,502,270 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Contributions, gifts, grants paid | $34,502,270 | 99.9% | |
| Fees: accounting | $10,225 | 0.0% | |
| Taxes | $10,000 | 0.0% | |
| Other expenses | $8,010 | 0.0% | |
| Interest | $4,195 | 0.0% | |
| Total | $34,534,700 | 100% |
2023 · Form 990PF · $21,087,352 spent · pay $0 · grants $20,884,778 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Contributions, gifts, grants paid | $20,884,778 | 99.0% | |
| Taxes | $188,460 | 0.9% | |
| Fees: accounting | $8,600 | 0.0% | |
| Other expenses | $3,070 | 0.0% | |
| Interest | $2,444 | 0.0% | |
| Total | $21,087,352 | 100% |
2022 · Form 990PF · $14,608,500 spent · pay $0 · grants $14,595,000 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Contributions, gifts, grants paid | $14,595,000 | 99.9% | |
| Fees: accounting | $8,700 | 0.1% | |
| Fees: other professional | $4,750 | 0.0% | |
| Other expenses | $50 | 0.0% | |
| Total | $14,608,500 | 100% |
2021 · Form 990PF · $13,315,800 spent · pay $0 · grants $13,306,826 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Contributions, gifts, grants paid | $13,306,826 | 99.9% | |
| Fees: accounting | $8,725 | 0.1% | |
| Other expenses | $249 | 0.0% | |
| Total | $13,315,800 | 100% |
2020 · Form 990PF · $9,324,900 spent · pay $0 · grants $9,314,000 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Contributions, gifts, grants paid | $9,314,000 | 99.9% | |
| Fees: accounting | $10,900 | 0.1% | |
| Total | $9,324,900 | 100% |
2019 · Form 990PF · $7,150,382 spent · pay $0 · grants $7,115,124 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Contributions, gifts, grants paid | $7,115,124 | 99.5% | |
| Taxes | $23,583 | 0.3% | |
| Fees: accounting | $11,675 | 0.2% | |
| Total | $7,150,382 | 100% |
2018 · Form 990PF · $7,468,678 spent · pay $0 · grants $7,452,178 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Contributions, gifts, grants paid | $7,452,178 | 99.8% | |
| Fees: accounting | $11,500 | 0.2% | |
| Taxes | $5,000 | 0.1% | |
| Total | $7,468,678 | 100% |
2017 · Form 990PF · $450,700 spent · pay $0 · grants $440,200 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Contributions, gifts, grants paid | $440,200 | 97.7% | |
| Fees: accounting | $10,500 | 2.3% | |
| Total | $450,700 | 100% |
2016 · Form 990PF · $11,100 spent · pay $0 · grants $0 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Fees: accounting | $11,100 | 100.0% | |
| Total | $11,100 | 100% |
2015 · Form 990PF · $23,688 spent · pay $0 · grants $0 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Fees: accounting | $11,500 | 48.5% | |
| Taxes | $10,651 | 45.0% | |
| Fees: legal | $1,537 | 6.5% | |
| Total | $23,688 | 100% |
2010 · Form 990PF · $5,739,402 spent · pay $0 · grants $5,724,202 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Contributions, gifts, grants paid | $5,724,202 | 99.7% | |
| Fees: accounting | $10,200 | 0.2% | |
| Taxes | $5,000 | 0.1% | |
| Total | $5,739,402 | 100% |
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