Osullivan Foundation Trust Dtd 122299

Private foundation · Grantmaker Princeton, NJ EIN: 06-6487034

Osullivan Foundation Trust Dtd 122299 is a private foundation based in Princeton, New Jersey. Its 2024 filing reports $3,623,700 in grants to 13 organizations, including grants for education, autism-related work, and scholarships and operations.

Osullivan Foundation Trust Dtd 122299 at a glance

In short: Osullivan Foundation Trust Dtd 122299 gave $3.6M across 13 grants in 2024 (avg $279K), mostly in California. Source: 2024 IRS Form 990-PF.

Annual giving (2024)
$3,623,700
+261.6% vs 2023
Grants made (2024)
13
-18.8% vs 2023
Average grant
$278,746
+345.0% vs 2023
Median grant
$40,000
Total assets
$24,039,901
+1.7% vs 2023
Primary geography
California (55% of itemized 2024 grant dollars)
Latest 990 filing
Form 990-PF, 2024 View filing

Data from IRS Form 990-PF, 2024; updated October 2026.

How to apply to Osullivan Foundation Trust Dtd 122299

Accepts unsolicited proposals
No
How to Apply

The foundation states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds.

Contact

Mailing address: 174 Nassau St 3000, Princeton, NJ 08542
Phone: (518) 640-5000

Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.

Who Osullivan Foundation Trust Dtd 122299 funds

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2024

Khan Academy: $1.4MKhan Academy$1.4MRensselaer Polytechnic Institute: $1.4MRensselaer PolytechnicInstitute$1.4MThe Brain Foundation: $550KThe Brain Foundation$550KInternational Assocation of Spelling as Communication: $160K across 4 grantsInternational Assocation ofSpelling as Communication$160K · 4 grantsMultiple Hub Inc: $50KMultiple Hub Inc$50KUS Ireland Alliance: $25KUS Ireland Alliance$25KAutism Science Foundation: $10KAutism Science Foundation$10KThe Learning Cooperatives: $10KThe Learning Cooperatives$10KMount St Dominic Academy: $5KMount St Dominic Academy$5KMercy for Animals: $3KMercy for Animals$3K

The largest 2024 recipient was Khan Academy ($1.4M). Together the top 10 received $3.6M.

Grant Size Distribution

33 grants across all recorded years

19<$50K6$50–100K1$100–250K1$250–500K3$500K–1M3$1–5M$5M+

The most common grant size was under $50K: 19 grants of 33 (58%).

Geographic Focus

Where this funder awards grants

In 2024, 55% of grant dollars went to recipients in California, 39% to New York, and 5% to Virginia. The filing reports less than 1% to Pennsylvania and less than 1% to New Jersey.

Grant Distribution by State

9states

Share of 2024 grant dollars across all 13 itemized grants.

Cities

HerndonAlbanyHamilton TownshipMountain ViewPleasantonTroyArlingtonBeverly HillsCaldwellHillsboroughLanghorneLos AngelesMadisonNotre DamePalo AltoPhoenixSacramentoScarsdaleTorrington

How Osullivan Foundation Trust Dtd 122299 gives

  • 30% of 2024 grantees were also funded in 2023. Method
  • Giving grew 84% from 2021 to 2024. Method
  • In 2024 it paid out 145% of its IRS minimum distribution (the 5% rule). Method

Estimate from itemized grant lists in IRS Form 990-PF filings (2024). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.

Giving History

Giving Over Time

Total grant dollars and number of grants per year

$0$1M$2M$3M$4M1 grant2020 2 grants2021 1 grant2022 16 grants2023 13 grants2024

From 2020 to 2024, annual grant giving ranged from $884K (2022) to $3.6M (2024). In 2024 it made 13 grants totaling $3.6M.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
Khan Academy Mountain View, CAOnline Education Services Support$1,405,600
Rensselaer Polytechnic Institute Troy, NYEducation$1,405,600
The Brain Foundation Pleasanton, CAAutism Resarch$550,000
Multiple Hub Inc Beverly Hills, CAAutism Services$50,000
International Assocation of Spelling as Communication Herndon, VAAutism Communication, Training, Advocacy$40,000
International Assocation of Spelling as Communication Herndon, VAAutism Communication, Training, Advocacy$40,000
International Assocation of Spelling as Communication Herndon, VAAutism Communication, Training, Advocacy$40,000
International Assocation of Spelling as Communication Herndon, VAAutism Communication, Training, Advocacy$40,000
US Ireland Alliance Arlington, VAScholarships & Operations$25,000
Autism Science Foundation Scarsdale, NYAutism Research$10,000
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Financial History

Multi-year comparison from IRS filings

Figures from IRS filings, by filing year
Filing yearTotal AssetsRevenueExpensesGrants paidGrantsQualifying DistributionsNet Investment IncomeDistributable Amount
2024$24,039,901$3,110,142$3,637,255$3,623,70013$3,633,700$3,106,587$2,511,317
2023$23,644,350$3,429,315$1,075,743$1,002,15916$1,032,609$3,405,731$2,531,822
2022$22,078,815$5,006,176$969,524$883,6581$1,184,158$5,000,810$2,482,139
2021$17,620,151$802,197$2,421,482$1,967,9522$1,967,952$356,642$1,756,208
2020$19,237,611$4,498,240$1,373,485$999,9761—$4,206,536$1,552,078

Under IRS private-foundation payout rules, Osullivan Foundation Trust Dtd 122299 reported a distributable amount of $2.5M for 2024 — the minimum it must pay out in qualifying distributions.

Research compiled by Grantable AI from public sources. Last updated September 2026.

Mission & Focus Areas

No mission statement for the foundation is provided. Its 2024 grants include stated purposes related to education, online education services, autism research, autism services and communication, and scholarships and operations.

Grantees describe their own work in varied terms. Khan Academy says its mission is “a free world-class education for anyone, anywhere,” while Rensselaer Polytechnic Institute says it educates leaders for technologically based careers and advances discovery and responsible applications of technology. The Brain Foundation describes its purpose as public education and medical scientific research concerning neurological disorders. The Autism Science Foundation says it supports autism research and public awareness. These are grantees’ missions, not statements of the foundation’s mission.

Grantmaking

In filing year 2024, the foundation reported 13 grants totaling $3,623,700. Grant amounts ranged from $2,500 to $1,405,600, with a median of $40,000. Among the largest reported grants were $1,405,600 each to Khan Academy for online education services support and Rensselaer Polytechnic Institute for education, and $550,000 to The Brain Foundation for autism research. Other reported grants included $50,000 to Multiple Hub Inc for autism services; four grants of $40,000 each to the International Association of Spelling as Communication for autism communication, training, and advocacy; and $25,000 to the US-Ireland Alliance for scholarships and operations.

Leadership & Key People

Leadership team and compensation from IRS filings

The 2024 filing lists Sean M. O’Sullivan, Marie T. O’Sullivan, and Anne S. O’Sullivan as trustees.

Osullivan Foundation Trust Dtd 122299's 2024 filing lists 3 officers; none of the 3 officers listed in 2024 report compensation.

Officers on the 2024 filing

  • Anne S. O'Sullivan

    Trustee

    On filings since 2020

    1 hr/week

    No compensation reported

  • Marie T. O'Sullivan

    Trustee

    On filings since 2020

    1 hr/week

    No compensation reported

  • Sean M. O'Sullivan

    Trustee

    On filings since 2020

    1 hr/week

    No compensation reported

Data from IRS Form 990 filings, 2020–2024. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.

Frequently asked questions about Osullivan Foundation Trust Dtd 122299

How much does Osullivan Foundation Trust Dtd 122299 give each year?

Osullivan Foundation Trust Dtd 122299 gave $3.6M across 13 grants in 2024, according to its 2024 IRS Form 990-PF. In 2023 it gave $1.0M across 16 grants.

What is Osullivan Foundation Trust Dtd 122299's typical grant size?

Osullivan Foundation Trust Dtd 122299's median grant in 2024 was $40,000, and its average grant was $278,746, across 13 grants on its 2024 IRS Form 990-PF.

Where does Osullivan Foundation Trust Dtd 122299 give grants?

Osullivan Foundation Trust Dtd 122299 gives mostly in California: 55% of the grant dollars itemized on its 2024 IRS Form 990-PF went to recipients there. The next largest states were New York (39%) and Virginia (5%). The most frequent recipient cities were Herndon, VA (4 grants).

Does Osullivan Foundation Trust Dtd 122299 give general operating support?

Not in 2024: none of the 13 grants with a stated purpose on Osullivan Foundation Trust Dtd 122299's 2024 IRS Form 990-PF were described as general or operating support. Recurring purposes include "Autism Communication, Training, Advocacy" (4 grants) and "Education" (3 grants).

Who are Osullivan Foundation Trust Dtd 122299's largest grantees?

Osullivan Foundation Trust Dtd 122299's largest 2024 grantees include Khan Academy ($1,405,600), Rensselaer Polytechnic Institute ($1,405,600) and The Brain Foundation ($550,000), according to its 2024 IRS Form 990-PF. Together they received 93% of its itemized 2024 grant dollars.

How large is Osullivan Foundation Trust Dtd 122299?

Osullivan Foundation Trust Dtd 122299 reported $24.0M in total assets on its 2024 IRS Form 990-PF. It paid out $3.6M in qualifying distributions that year, against a required minimum of $2.5M (roughly 5% of its investment assets).

What does Osullivan Foundation Trust Dtd 122299 fund?

No mission statement for the foundation is provided. Its 2024 grants include stated purposes related to education, online education services, autism research, autism services and communication, and scholarships and operations. See mission & focus areas ↑

How do I apply for a grant from Osullivan Foundation Trust Dtd 122299?

The foundation states that it makes contributions only to preselected charitable organizations and does not accept unsolicited requests for funds. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑

What is Osullivan Foundation Trust Dtd 122299's EIN?

Osullivan Foundation Trust Dtd 122299's EIN (Employer Identification Number) is 06-6487034. IRS Form 990 filing data is available on this page for 2020–2024.

Does Osullivan Foundation Trust Dtd 122299 accept unsolicited proposals?

No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑

Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.

Data update history

(1)

When this profile's IRS filing data changed on Grantable

  1. IRS filings on file for fiscal years 2020–2024

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Cite this profile

Grantable. (2026). Osullivan Foundation Trust Dtd 122299 funder profile. GrantGraph. Retrieved October 6, 2026, from https://grantable.co/funders/osullivan-foundation-trust-dtd-122299-morg_04c76a8520974c4ab11c4f428fd13418

BibTeX
@misc{grantable_066487034_2026,
  author       = {{Grantable}},
  title        = {{Osullivan Foundation Trust Dtd 122299 funder profile}},
  howpublished = {GrantGraph},
  year         = {2026},
  url          = {https://grantable.co/funders/osullivan-foundation-trust-dtd-122299-morg_04c76a8520974c4ab11c4f428fd13418},
  note         = {Accessed 2026-10-06. Data licensed CC BY 4.0}
}

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Figures come from Osullivan Foundation Trust Dtd 122299's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.

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