Grants paid by Anthony and Dorothy Riddle Family Foundation
EIN 73-1631943 · Boulder, CO · Form 990-PF, Part XV · NTEE T21
Anthony and Dorothy Riddle Family Foundation of Boulder, CO (EIN 73-1631943) reported 16 grants paid totaling $206,000 to 7 recipients in tax years 2020–2025, on Form 990-PF, Part XV. Derived from IRS e-file data, dataset version 2026.09.0, built 2026-09-03.
Grants paid
$206,000
16 grants
Recipients
7
distinct organizations
Tax years
2020–2025
6 filings in the corpus
By tax year
| Tax year | Grants paid | Amount paid | Approved for future |
|---|---|---|---|
| 2020 | 1 | $30,000 | — |
| 2021 | 1 | $35,000 | — |
| 2022 | 1 | $30,000 | — |
| 2023 | 2 | $34,000 | — |
| 2024 | 5 | $37,000 | — |
| 2025 | 6 | $40,000 | — |
Top recipients
The 7 recipients receiving the most from Anthony and Dorothy Riddle Family Foundation, by grants paid, out of 7 distinct recipients.
| Recipient | Match | Location | Grants | Total paid | Latest year |
|---|---|---|---|---|---|
| University of Colorado Foundation 84-6049811 | B | Denver, CO | 6 | $179,000 | 2025 |
| Hack Foundation 81-2908499 | B | West Hollywood, CA | 1 | $10,000 | 2023 |
| Bechtel International Center | U | Stanford, CA | 2 | $6,000 | 2025 |
| Cu Science Discovery | U | Boulder, CO | 2 | $4,000 | 2025 |
| Colorado Fourteeners | U | Golden, CO | 2 | $4,000 | 2025 |
| International Topical Steroid Awareness Network 45-4556484 | B | Dacula, GA | 2 | $2,000 | 2025 |
| Grand Canyon Youth 86-0905180 | B | Flagstaff, AZ | 1 | $1,000 | 2025 |
Match tier: A Reported EIN · B Exact name and place · C Strong name match · D Probable name match · U Unresolved. Tiers C and D are inferred, not reported; see how matching works.
Every grant
All 16 grant rows this organization reported, most recent first.
| Tax year | Recipient | Match | Amount | Type | Purpose | Source filing |
|---|---|---|---|---|---|---|
| 2025 | University of Colorado Foundation Denver, CO | B | $30,000 | paid | Scholarships | 202611179349100311 |
| 2025 | Bechtel International Center Stanford, CA | U | $4,000 | paid | Encouraging interactions with international visitors | 202611179349100311 |
| 2025 | Cu Science Discovery Boulder, CO | U | $2,000 | paid | Scholarship and Intergenerational activity support | 202611179349100311 |
| 2025 | Colorado Fourteeners Golden, CO | U | $2,000 | paid | Preserve trails and open spaces for intergenerational interactions | 202611179349100311 |
| 2025 | Grand Canyon Youth Flagstaff, AZ | B | $1,000 | paid | Funding for intergenerational interaction with nature | 202611179349100311 |
| 2025 | International Topical Steroid Awareness Network Dacula, GA | B | $1,000 | paid | Awareness of TSC | 202611179349100311 |
| 2024 | University of Colorado Foundation Denver, CO | B | $30,000 | paid | Scholarships | 202500739349101205 |
| 2024 | Cu Science Discovery Boulder, CO | U | $2,000 | paid | Scholarship and Intergenerational activity support | 202500739349101205 |
| 2024 | Bechtel International Center Stanford, CA | U | $2,000 | paid | Encouraging interactions with international visitors | 202500739349101205 |
| 2024 | Colorado Fourteeners Golden, CO | U | $2,000 | paid | Preserve trails and open spaces for intergenerational interactions | 202500739349101205 |
| 2024 | International Topical Steroid Awareness Network Dacula, GA | B | $1,000 | paid | Awareness of TSC | 202500739349101205 |
| 2023 | University of Colorado Foundation Denver, CO | B | $24,000 | paid | Maintenance of scholarship to support the arts | 202440959349100809 |
| 2023 | Hack Foundation West Hollywood, CA | B | $10,000 | paid | Support multi-cultural interactions through the support of international STEM competitions | 202440959349100809 |
| 2022 | University of Colorado Foundation Denver, CO | B | $30,000 | paid | Support of scholarship in Arts and Culture | 202300659349100405 |
| 2021 | University of Colorado Foundation Denver, CO | B | $35,000 | paid | Support of Scholarships in the Arts and Culture | 202220769349100107 |
| 2020 | University of Colorado Foundation Denver, CO | B | $30,000 | paid | Support ongoing activities of the Foundation endowment | 202131349349102008 |
Match tier: A Reported EIN · B Exact name and place · C Strong name match · D Probable name match · U Unresolved. Tiers C and D are inferred, not reported; see how matching works.
Recipient matching for this dataset version has not yet completed its independent precision check. Tier A rows carry the EIN the filer reported; tiers B–D are the matcher's inference and should be read as leads until the check is published on the methodology page.
Source filings
Every figure above is traceable to one of these IRS e-file returns by its OBJECT_ID.
| Form | Tax year | Period end | Filed | Schema | IRS OBJECT_ID |
|---|---|---|---|---|---|
| 990PF | 2025 | 2025-12-31 | not stated | 2025v4.0 | 202611179349100311 |
| 990PF | 2024 | 2024-12-31 | not stated | 2024v5.0 | 202500739349101205 |
| 990PF | 2023 | 2023-12-31 | not stated | 2023v5.0 | 202440959349100809 |
| 990PF | 2022 | 2022-12-31 | not stated | 2022v4.1 | 202300659349100405 |
| 990PF | 2021 | 2021-12-31 | not stated | 2021v4.0 | 202220769349100107 |
| 990PF | 2020 | 2020-12-31 | not stated | 2020v4.0 | 202131349349102008 |
Derived from IRS Form 990-PF e-file XML; recipient identities from the IRS Exempt Organizations Business Master File. Dataset version 2026.09.0, built 2026-09-03. The same rows as Parquet: manifest; as JSON: /api/funders/731631943.json.
The same organization elsewhere in the program: exempt status and filing health · federal awards · grant guidance · open opportunities.
This is informational only, derived from public data on the dates shown. It is not an eligibility determination, and not legal, tax, or accounting advice. Verify against the official source before relying on it.