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Virginia · Public charity

Speed of Light - the Astro Foundation

To bring the vision to reality, the foundation will accelerate bold and innovative ideas in radiation therapy.

$344k
Granted FY2025(still arriving)
9
Grants FY2025
10
Organizations funded FY2024
20%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$34,993
Largest grant, FY2025
$83,880
Organizations funded a year
6 to 13
FY2018 to FY2024
States reached, FY2025
7
Total assets, FY2025
$20M

How open it is to new grantees

In FY2024, 20% of the organizations Speed of Light - the Astro Foundation funded were first-time grantees, receiving 22% of its grant dollars.

New vs renewed · share of each year

In FY2024, 78% of grant dollars renewed an existing relationship; $71k went to new ones.

50%100%’18’19’20’21’22’23’24
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’18’19’20’21’22’23’24
EducationHealthOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). The earliest year is left-censored: relationships that predate the data read as new. Theme is the grantee’s IRS cause.
The numbers by year
Fiscal yearOrganizations fundedTo those organizationsFirst-time grantees
FY2025still arriving8$302k25%
FY202410$326k20%
FY202313$408k31%
FY202211$411k45%
FY20218$215k25%
FY20209$223k33%
FY20197$167k57%
FY20186$251k50%
100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2024.

Health$1.5MScience & Tech$459kEducation$243kYouth Development$30k

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

MN
IL
WI
NY
MA
OH
NJ
CA
VA
MD
TN
NC
AL
TX
FL

Top grantees

Largest recipients by total granted, FY2017 to FY2025, and the share of each one’s budget the grants supplied at peak.

GranteeTotal grantedYearsShare of their budget
Johns Hopkins University$343,90860%
Utmd Anderson$243,0376n/a
Mass General Brigham Incorporated$158,4063n/a
University Hospitals Health System Inc$150,4283n/a
Mass General Brigham Incorporated$128,8204n/a
University of Chicago$111,11130%
The University of Texas Southwestern Medical Cente$101,0133n/a
Montefiore Medical Center$97,13530%
Baylor College of Medicine$91,83420%
American Society for Radiation Oncology$90,00090%
Show all 29 grantees
All grantees of Speed of Light - the Astro Foundation by total granted
GranteeTotal grantedYearsShare of their budget
Johns Hopkins University$343,90860%
Utmd Anderson$243,0376n/a
Mass General Brigham Incorporated$158,4063n/a
University Hospitals Health System Inc$150,4283n/a
Mass General Brigham Incorporated$128,8204n/a
University of Chicago$111,11130%
The University of Texas Southwestern Medical Cente$101,0133n/a
Montefiore Medical Center$97,13530%
Baylor College of Medicine$91,83420%
American Society for Radiation Oncology$90,00090%
University of California San Francisco$84,9933n/a
Washington University$83,88010%
New York University$81,42040%
The Medical College of Wisconsin Inc$76,03820%
University of North Carolina at Chapel Hill$71,5572n/a
Mayo Clinic$66,9682n/a
University of Oklahoma Health Sciences Center$52,0001n/a
Duke University$50,97110%
The Ohio State University$50,0002n/a
Icahn School of Medicine at Mount Sinai$50,00020%
Vanderbilt University Medical Center$50,00010%
Regents Univ of California$50,0002n/a
University of Minnesota$49,0482n/a
Oregon Health & Science University$47,6342n/a
University of Florida$33,4841n/a
Rutgers the State University$30,0002n/a
Regents of the University of California at San Diego$27,5002n/a
Albert Einstein College of Medicine Inc$23,68210%
University of Alabama at Birmingham$23,0581n/a

Where it is load-bearing

Each grantee by its size and the share of its budget Speed of Light - the Astro Foundation supplied at peak.

25%50%75%100%$100Mgrantee revenue →↑ funder's share of their budgetJohns Hopkins University: $343,908 over 6y, 0.0% of budgetUniversity of Chicago: $111,111 over 3y, 0.0% of budgetMontefiore Medical Center: $97,135 over 3y, 0.0% of budgetBaylor College of Medicine: $91,834 over 2y, 0.0% of budgetAmerican Society for Radiation Oncology: $90,000 over 9y, 0.1% of budgetWashington University: $83,880 over 1y, 0.0% of budgetNew York University: $81,420 over 4y, 0.0% of budgetThe Medical College of Wisconsin Inc: $76,038 over 2y, 0.0% of budgetDuke University: $50,971 over 1y, 0.0% of budgetIcahn School of Medicine at Mount Sinai: $50,000 over 2y, 0.0% of budgetVanderbilt University Medical Center: $50,000 over 1y, 0.0% of budgetAlbert Einstein College of Medicine Inc: $23,682 over 1y, 0.0% of budget

Tap a dot to name the grantee.

How this is measured
Share of budget is the funder’s grant in a year over the grantee’s total revenue that year, at its highest across the years we hold; revenue is from all sources. Only grantees confirmed against their own filings, whose grants do not exceed their revenue, are plotted: the largest 12.

Compare Speed of Light - the Astro Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Speed of Light - the Astro Foundation?

Find your warmest path to Speed of Light - the Astro Foundation through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.

Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.

About Speed of Light - the Astro Foundation

How much does Speed of Light - the Astro Foundation give?
Speed of Light - the Astro Foundation reported 9 grants totaling $343,746 in its FY2025 IRS filing. It funded between 6 and 13 organizations a year over FY2018 to FY2024.
What does Speed of Light - the Astro Foundation fund?
By grant dollars over FY2017 to FY2025, its largest causes are Health (67%), Science & Tech (21%), Education (11%).
Who are Speed of Light - the Astro Foundation's largest grantees?
By total granted over FY2017 to FY2025: Johns Hopkins University ($344k), Utmd Anderson ($243k), Mass General Brigham Incorporated ($158k).
Does Speed of Light - the Astro Foundation fund new organizations?
In FY2024, 20% of the organizations it funded were first-time grantees.
Where is Speed of Light - the Astro Foundation based?
Speed of Light - the Astro Foundation is based in VA.

On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 30 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

How this is measured
Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

Generated from the IRS Form 990 e-file return for fiscal year 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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