· Private foundation
The Tom Sullivan Foundation Inc
Its FY2025 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.
What it funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.
Where the money goes
Grants by size, and the largest recipients.
By grant size · FY2025
- $10k–50k1 grant · $20k
- $50k–250k1 grant · $100k
| Recipient | Amount |
|---|---|
| Eric Weihenmayer Reach Foundation | $100,000 |
| No Barriers USA | $20,000 |
Does the money reach high-need areas?
Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.
Its human-services grants (FY21–22, $60k) land where the poverty rate runs at 7%, against an area that typically sits at 10%. 0% of those dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.
How this is measured
How this is measured
Who it funds again
Organizations funded in more than one year, against those funded once.
6 repeat relationships: 1 still active in FY2025, 5 since wound down; 1 grantees were first funded in FY2025 (too recent to call).
How the two cohorts compare
Organizations
Total granted
Median revenue growth · since first grant
Still filing today
New vs renewed · share of each year
In FY2025, 17% of grant dollars renewed an existing relationship; $100k went to new ones.
Where new relationships form · theme of each grantee’s first grant
How this is measured
Backed again, and grew
Best Buddies International Inc4× · 2018–2022 · $265k · revenue +57%- NBNATIONAL BRAILLE PRESS INC7× · 2017–2024 · $246k · revenue +8%
- CCCohasset Center For Student Coastal Research Inc2× · 2021–2022 · $60k · revenue +245% · 49% of their budget
Funded once
- TRTHE RED SOX FOUNDATION INCgraduatedone grant, 2020 · $50k · revenue +143%
- SSSeed School of Miamione grant, 2019 · $30k
- UOUNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGNone grant, 2017 · $25k
How this is measured
Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.
Closest unfunded matches
The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.
Organization's mission: boston university is an international, comprehensive, private research university, committed to educating students to be reflective, resourceful individuals ready to live, adapt, and lead in an interconnected world.…
The mission of the boston bar foundation (bbf) is to promote justice by funding and promoting innovation in legal services, enhancing access to justice for the underserved, and supporting the public interest activities of the bar. as the…
Bridgespan's mission is to build a better world by strengthening the ability of mission-driven organizations and philanthropists to achieve breakthrough results in addressing society's most important challenges and opportunities.
Provide an independent forum for those who dare to read, think, speak, and write to advance the professional, literary, and scientific understanding of sea power and other issues critical to global security.
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
Bates is a college of the liberal arts and sciences, and is a coeducational, nonsectarian, residential college with special commitments to academic rigor, and to assuring in all of its efforts the dignity of each individual, and access to…
The organization's primary exempt purpose is to provide access to and conduct activities in furtherance of higher education.
The mission of the roundtable is to make massachusetts the most desirable place to live, work and do business by engaging private sector executives and public leaders to ensure access to a robust, diverse and talented workforce that…
Massachusetts biomedical initiatives, inc. ("mbi or the organization") is a private non-profit corporation focusing on building up central massachusetts as a global biomanufacturing hub. our mission of being a partner for fostering…
Our mission is to accelerate scientific progress, understand the root causes of disease, and narrow the gap between discoveries and impact on patients.
New england law/boston dedicates itself to preparing students to be successful lawyers and leaders in the public and private sectors through integrated practical, theoretical and ethical education of the highest caliber and to contributing…
Our mission is to improve quality of life by transforming the understanding, treatment, and care of the ocular surface.
How this is measured
10 grantees tracked through their own filings, 2017–2025.
Each grant beside the grantee’s revenue from every source, year by year.
How this is measured
Counted here: distinct organizations funded across 2017 to 2025, not grant rows in a single year, so this will not match the grant count on the cover. 10 of the 14 grantees resolved in that span have returns of their own we could reconcile.
Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.
Where the money sits, by cause and then by grantee
Each grantee by its size and the funder’s share of it; top left is load-bearing
Grantee by grantee: a decade per organization, before and after funding
A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.
- Who funds NO BARRIERS USA ↗
- Who funds Best Buddies International Inc ↗
- Who funds NATIONAL BRAILLE PRESS INC ↗
- Who funds ERIK WEIHENMAYER REACH FOUNDATION INC ↗
- Who funds Cohasset Center For Student Coastal Research Inc ↗
- Who funds THE RED SOX FOUNDATION INC ↗
- Who funds DUKE UNIVERSITY ↗
- Who funds Massachusetts Institute of Technology ↗
- Who funds AMERICANS FOR IMMIGRANT JUSTICE INC F/K/A FLA IMMIGRANT ADVOCACY CENTER ↗
- Who funds Boston Foundation Inc ↗
Co-funders
Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.
Open a dossier: Fidelity Investments Charitable Gift Fund · Amazonsmile Foundation
How this is measured
How much its grantees rely on government
Each dot is one organization The Tom Sullivan Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from The Tom Sullivan Foundation Inc. Bigger dots raise more.
- Massachusetts Institute of Technology: 35% of income from government
- Best Buddies International Inc: 4% of income from government
- The Red Sox Foundation Inc: 2% of income from government
- National Braille Press Inc: 0% of income from government
- Boston Foundation Inc: 0% of income from government
How this is measured
Warm introductions · Powered by PlinthPlus
How do I get to The Tom Sullivan Foundation Inc?
Find your warmest path to The Tom Sullivan Foundation Inc 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.
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