The Decker Weiss Family Foundation Inc

Private foundation · Grantmaker Denver, CO EIN: 87-3465543

The Decker Weiss Family Foundation Inc is a Form 990-PF (a private foundation) based in Denver, Colorado. It reported 15 grants totaling $51,424 in filing year 2025, with most grant dollars going to recipients in Colorado.

The Decker Weiss Family Foundation Inc at a glance

In short: The Decker Weiss Family Foundation Inc gave $51K across 15 grants in 2025 (avg $3K), mostly in Colorado. 40% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.

Annual giving (2025)
$51,424
+29.5% vs 2024
Grants made (2025)
15
-28.6% vs 2024
Average grant
$3,428
+81.3% vs 2024
Median grant
$1,250
Total assets
$3,077,556
+38.9% vs 2024
New grantees (estimate)
40% first-time grantees (6 of 15, 2025; small sample)
Primary geography
Colorado (94% of itemized 2025 grant dollars)
Latest 990 filing
Form 990-PF, 2025 View filing

Data from IRS Form 990-PF, 2025; updated October 2026. New grantees are estimated by matching recipient names across years (methodology).

How to apply to The Decker Weiss Family Foundation Inc

How to Apply

The foundation’s 2024 filing says it does not restrict giving to preselected organizations. It lists Marc Weiss as the contact, says no required form or materials are needed, and lists no restrictions on awards.

Review Cycle
The 2024 filing lists no deadlines.
Deadline
The 2024 filing lists no deadlines.
Contact

Application contact: Marc Weiss
Mailing address: 346 Sound Beach Avenue, Old Greenwich, CT 06870
Phone: (914) 251-9200
Email: jeff@shulmanjones.com

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

Who The Decker Weiss Family Foundation Inc funds

How this funder distributes its grants

Top Recipients

Top 10 recipients in 2025

Boys and Girls Club Denver: $16KBoys and Girls Club Denver$16KUc Health: $9KUc Health$9KAspen Institute: $8KAspen Institute$8KDenver Botanical Garden: $4KDenver Botanical Garden$4KFood Bank of the Rockies: $4KFood Bank of the Rockies$4KHigh Line Canal Trail Conservancy: $2KHigh Line Canal TrailConservancy$2KThe Maxfund Inc: $2KThe Maxfund Inc$2KNational Jewish Health: $1KNational Jewish Health$1KAaas: $1KAaas$1KColorado Public Radio: $1KColorado Public Radio$1K

The largest 2025 recipient was Boys and Girls Club Denver ($16K). Together the top 10 received $49K.

Grant Size Distribution

70 grants across all recorded years

70<$50K$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 70 grants of 70 (100%).

Geographic Focus

Where this funder awards grants

In filing year 2025, 94% of grant dollars went to recipients in Colorado. The reported shares for Massachusetts, Virginia, and Connecticut were 2% each; California was listed at 0%.

Grant Distribution by State

12states

Share of 2025 grant dollars across all 15 itemized grants.

Cities

DenverCentennialStamfordArlingtonAuroraGreenwichWashingtonBostonBridgewaterHartfordHempsteadAspenBoulderCherry Hills VillageColorado SpringsDallasGoochlandIthacaManchesterNew York

Is The Decker Weiss Family Foundation Inc open to new grantees?

40%

first-time grantees, 2025

In 2025, 6 of 15 grantees (40%) were first-time recipients. With only 15 grantees, that is a small sample: one grantee more or less moves the share by about 7 points. First grants averaged $2K; repeat grants $4K. How we count

Medians: $763 first-time, $2K repeat.

  • 60% of 2025 grantees were also funded in 2024. Method
  • Giving held roughly steady from 2022 to 2025 (+8%). Method
  • In 2025 it paid out 31% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method

Estimate from itemized grant lists in IRS Form 990-PF filings (2022–2025). 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$20K$40K$60K0 grants2021 22 grants2022 12 grants2023 21 grants2024 15 grants2025

From 2022 to 2025, annual grant giving ranged from $29K (2023) to $51K (2025). In 2025 it made 15 grants totaling $51K.

Grants by year

Grant recipients and amounts by year

RecipientPurposeAmount
Boys and Girls Club Denver Denver, COGeneral$15,927
Uc Health Aurora, COGeneral$9,000
Aspen Institute Aspen, COGeneral$8,400
Denver Botanical Garden Denver, COGeneral$4,000
Food Bank of the Rockies Denver, COGeneral$4,000
High Line Canal Trail Conservancy Centennial, COGeneral$2,073
The Maxfund Inc Denver, COGeneral$2,000
National Jewish Health Denver, COGeneral$1,250
Aaas Boston, MAGeneral$1,000
Colorado Public Radio Centennial, COGeneral$1,000
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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
2025$3,077,556$966,227$104,348$51,42415$51,424$838,258$163,345
2024$2,215,801$2,143,054$69,296$39,72021$39,720$1,972,168$63,039
2023$142,267$86,680$44,722$29,32412$33,703$19,980$41,400
2022$99,961$25,456$61,135$47,77422$52,229$16,550$41,015
2021$135,640$139,913$4,273——$4,273—$245

Under IRS private-foundation payout rules, The Decker Weiss Family Foundation Inc reported a distributable amount of $163K for 2025 — 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 grants include support for organizations with varied missions. For example, Food Bank of the Rockies says its mission is to nourish people facing food insecurity; National Jewish Health describes its work as providing patient care, pursuing research and cures, and educating health professionals; and True Companions says it shelters and cares for pets and works to find them homes.

Grantmaking

In filing year 2025, the foundation made 15 grants totaling $51,424. Grant amounts ranged from $124 to $15,927, with a median of $1,250. Its largest reported grants included Boys and Girls Club Denver ($15,927), UC Health ($9,000), Aspen Institute ($8,400), Denver Botanical Garden ($4,000), and Food Bank of the Rockies ($4,000). The listed purposes for these grants were “GENERAL.”

Leadership & Key People

Leadership team and compensation from IRS filings

The 2025 filing lists Marc Weiss as president and Antoinette Decker as treasurer.

The Decker Weiss Family Foundation Inc is led by Marc Weiss, President on every filing since 2021; none of the 2 officers listed in 2025 report compensation.

Officers on the 2025 filing

  • Marc Weiss

    President

    On filings since 2021

    1 hr/week

    No compensation reported

  • Antoinette Decker

    Treasurer

    On filings since 2021

    1 hr/week

    No compensation reported

Data from IRS Form 990 filings, 2021–2025. "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 The Decker Weiss Family Foundation Inc

How much does The Decker Weiss Family Foundation Inc give each year?

The Decker Weiss Family Foundation Inc gave $51K across 15 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $40K across 21 grants.

What is The Decker Weiss Family Foundation Inc's typical grant size?

The Decker Weiss Family Foundation Inc's median grant in 2025 was $1,250, and its average grant was $3,428, across 15 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from The Decker Weiss Family Foundation Inc that year got $2K on average.

Where does The Decker Weiss Family Foundation Inc give grants?

The Decker Weiss Family Foundation Inc gives mostly in Colorado: 94% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The most frequent recipient cities were Denver, CO (6 grants) and Centennial, CO (2 grants).

Does The Decker Weiss Family Foundation Inc give general operating support?

Yes: 100% of The Decker Weiss Family Foundation Inc's 2025 grants with a stated purpose (15 of 15) were for general or operating support, per its 2025 IRS Form 990-PF.

Who are The Decker Weiss Family Foundation Inc's largest grantees?

The Decker Weiss Family Foundation Inc's largest 2025 grantees include Boys and Girls Club Denver ($15,927), Uc Health ($9,000) and Aspen Institute ($8,400), according to its 2025 IRS Form 990-PF. Together they received 65% of its itemized 2025 grant dollars.

How large is The Decker Weiss Family Foundation Inc?

The Decker Weiss Family Foundation Inc reported $3.1M in total assets on its 2025 IRS Form 990-PF. It paid out $51K in qualifying distributions that year, against a required minimum of $163K (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.

What does The Decker Weiss Family Foundation Inc fund?

No mission statement for the foundation is provided. Its grants include support for organizations with varied missions. See mission & focus areas ↑

How do I apply for a grant from The Decker Weiss Family Foundation Inc?

The foundation’s 2024 filing says it does not restrict giving to preselected organizations. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑

What is The Decker Weiss Family Foundation Inc's EIN?

The Decker Weiss Family Foundation Inc's EIN (Employer Identification Number) is 87-3465543. IRS Form 990 filing data is available on this page for 2021–2025.

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

Data update history

(6)

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990-PF for fiscal year 2021 (received by the IRS May 6, 2022)
  2. Updated Form 990-PF for fiscal year 2022 (received by the IRS March 15, 2023)
  3. Updated Form 990-PF for fiscal year 2023 (received by the IRS May 9, 2024)
  4. Updated Form 990-PF for fiscal year 2024 (received by the IRS April 7, 2025)
  5. Updated Form 990-PF for fiscal year 2025 (received by the IRS February 25, 2026)
  6. IRS filings on file for fiscal years 2021–2025

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Cite this profile

Grantable. (2026). The Decker Weiss Family Foundation Inc funder profile. GrantGraph. Retrieved October 23, 2026, from https://grantable.co/funders/the-decker-weiss-family-foundation-inc-morg_3b008f0c0ec74801b6fe3c310efc13ec

BibTeX
@misc{grantable_873465543_2026,
  author       = {{Grantable}},
  title        = {{The Decker Weiss Family Foundation Inc funder profile}},
  howpublished = {GrantGraph},
  year         = {2026},
  url          = {https://grantable.co/funders/the-decker-weiss-family-foundation-inc-morg_3b008f0c0ec74801b6fe3c310efc13ec},
  note         = {Accessed 2026-10-23. Data licensed CC BY 4.0}
}

The figures on this page are open data under CC BY 4.0: reuse them with credit to Grantable and a link. Download the data.

Figures come from The Decker Weiss Family Foundation Inc'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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