funder-graph › Recipients
Who funds Speed of Light- the Astro Foun
EIN 51-0178702 · Arlington, VA · NTEE G30
Speed of Light- the Astro Foun of Arlington, VA (EIN 51-0178702) was named as a grant recipient by 9 funders in 23 grants paid totaling $441,131 in tax years 2018–2025, as reported on the funders' Forms 990-PF and 990 Schedule I. Each edge was resolved to this EIN at the match tier shown. Dataset version 2026.09.0, built 2026-09-03.
Grants received
$441,131
23 grants paid
Funders
9
distinct grantmakers
Tax years
2018–2025
as reported by funders
Funders
| Funder | State | Match | Grants | Total paid | Latest year |
|---|---|---|---|---|---|
| American Society for Radiation Oncology 42-0943164 | VA | A | 5 | $132,756 | 2024 |
| Fidelity Investments Charitable Gift Fund 11-0303001 | MA | A | 8 | $108,300 | 2025 |
| The Breast Cancer Research Foundation Inc 13-3727250 | NY | A | 1 | $50,000 | 2020 |
| Morgan Stanley Global Impact Funding Trust Inc 52-7082731 | IN | A | 2 | $50,000 | 2022 |
| Schwab Charitable Fund 31-1640316 | CA | A | 3 | $28,700 | 2024 |
| Washington University 43-0653611 | MO | A | 1 | $25,000 | 2021 |
| Combined Jewish Philanthropies of Greater Boston Inc 04-2103559 | MA | A | 1 | $25,000 | 2018 |
| Vanguard Charitable Endowment Program 23-2888152 | PA | A | 1 | $11,375 | 2025 |
| National Philanthropic Trust 23-7825575 | PA | A | 1 | $10,000 | 2020 |
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.
Grants
The 23 most recent grants naming this organization.
| Tax year | Funder | Recipient | Match | Amount | Type | Purpose | Source filing |
|---|---|---|---|---|---|---|---|
| 2025 | Vanguard Charitable Endowment Program | Radiation Oncology Institute Arlington, VA | A | $11,375 | paid | FOR RECIPIENT'S EXEMPT PURPOSE | 202621329349306657 |
| 2025 | Fidelity Investments Charitable Gift Fund | Radiation Oncology Institute Boston, MA | A | $8,000 | paid | For grant recipient's exempt purposes | 202601389349301700 |
| 2024 | Donor Advised Charitable Giving Inc | Radiation Oncology Institute Arlington, VA | A | $14,500 | paid | HEALTH | 202541069349300729 |
| 2024 | American Society for Radiation Oncology | Radiation Oncology Institute Arlington, VA | A | $14,463 | paid | ASTRO MATCH | 202532949349300148 |
| 2024 | Fidelity Investments Charitable Gift Fund | Radiation Oncology Institute Boston, MA | A | $12,200 | paid | For grant recipient's exempt purposes | 202521349349310887 |
| 2023 | American Society for Radiation Oncology | Radiation Oncology Institute Arlington, VA | A | $13,519 | paid | ASTRO MATCH | 202433169349302033 |
| 2023 | Fidelity Investments Charitable Gift Fund | Radiation Oncology Institute Boston, MA | A | $11,200 | paid | For grant recipient's exempt purposes | 202441369349301334 |
| 2022 | Morgan Stanley Global Impact Funding Trust Inc | Radiation Oncology Institute Arlington, VA | A | $25,000 | paid | UNRESTRICTED GENERAL SUPPORT | 202302999349301010 |
| 2022 | American Society for Radiation Oncology | Radiation Oncology Institute Arlington, VA | A | $21,583 | paid | ASTRO MATCH | 202313119349303531 |
| 2022 | Fidelity Investments Charitable Gift Fund | Radiation Oncology Institute Boston, MA | A | $9,500 | paid | For grant recipient's exempt purposes | 202430459349302913 |
| 2022 | Fidelity Investments Charitable Gift Fund | St Patrick Church Chesterton, IN | A | $9,500 | paid | For grant recipient's exempt purposes | 202321309349304807 |
| 2021 | Washington University | Radiation Oncology Institute | A | $25,000 | paid | SPONSORSHIP | 202241369349305474 |
| 2021 | Fidelity Investments Charitable Gift Fund | Radiation Oncology Institute Boston, MA | A | $17,500 | paid | For grant recipient's exempt purposes | 202221339349302787 |
| 2021 | American Society for Radiation Oncology | Radiation Oncology Institute Arlington, VA | A | $12,685 | paid | ASTRO MATCH | 202222569349300817 |
| 2020 | American Society for Radiation Oncology | Radiation Oncology Institute Arlington, VA | A | $70,506 | paid | RADIATION ONCOLOGY RESEARCH SUPPORT | 202142439349301484 |
| 2020 | The Breast Cancer Research Foundation Inc | Radiation Oncology Institute Arlington, VA | A | $50,000 | paid | Medical Research | 202100879349300150 |
| 2020 | Morgan Stanley Global Impact Funding Trust Inc | Radiation Oncology Institute Arlington, VA | A | $25,000 | paid | UNRESTRICTED GENERAL SUPPORT | 202143219349301454 |
| 2020 | Fidelity Investments Charitable Gift Fund | Radiation Oncology Institute Boston, MA | A | $10,850 | paid | For grant recipient's exempt purposes | 202121359349300427 |
| 2020 | National Philanthropic Trust | Radiation Oncology Institute Boston, MA | A | $10,000 | paid | HEALTH | 202121459349300307 |
| 2020 | Schwab Charitable Fund | Radiation Oncology Institute Arlington, VA | A | $5,200 | paid | HEALTH | 202140489349301804 |
| 2019 | Schwab Charitable Fund | Radiation Oncology Institute Arlington, VA | A | $9,000 | paid | HEALTH | 202010489349300101 |
| 2018 | Fidelity Investments Charitable Gift Fund | Radiation Oncology Institute Arlington, VA | A | $29,550 | paid | FOR GRANT RECIPIENT'S EXEMPT PURPOSES | 201931359349301478 |
| 2018 | Combined Jewish Philanthropies of Greater Boston Inc | Radiation Oncology Institute Boston, MA | A | $25,000 | paid | DAF -Health Care & Research | 201920999349301252 |
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 inferred and should be read as leads until the check is published on the methodology page.
Derived from IRS Form 990-PF and Form 990 Schedule I e-file XML filed by the funders shown; this organization's identity from the IRS Exempt Organizations Business Master File. Dataset version 2026.09.0, built 2026-09-03. The rows as Parquet: manifest.
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.