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New York · Public charity

Summ Foundation

To promote social welfare and the advancement of sensible policies that expand liberty.

$3.2M
Granted FY2024(still arriving)
4
Grants FY2024
7
Organizations funded FY2023
Read the full brief
Median grant, FY2024
$500,000
Largest grant, FY2024
$2,270,000
States reached, FY2024
2
100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2023 to 2024.

Public Benefit$3.1MCivil Rights$1.9MEducation$175kInternational$100k

Top grantees

Largest recipients by total granted, FY2023 to FY2024, and the share of each one’s budget the grants supplied at peak.

GranteeTotal grantedYearsShare of their budget
With Honor Action Inc$2,270,000135%
American Unity Fund Inc$1,667,000236%
Welcomepac$300,0001n/a
Winning for Women Inc$200,000113%
Defending Democracy Together$200,00014%
Defending Education$175,00013%
National Black Empowerment Action Fund Inc$150,000149%
Democracyfirst$100,0001n/a
Ukraine Freedom Project$100,000123%
Drug Policy Action$50,00012%

Where it is load-bearing

Summ Foundation supplied at least a quarter of the budget for 3 of its grantees at some point. The chart plots its 8 largest grantees; load-bearing ones sit top left.

25%50%75%100%$1.0M$10Mgrantee revenue →↑ funder's share of their budgetWith Honor Action Inc: $2,270,000 over 1y, 35% of budgetAmerican Unity Fund Inc: $1,667,000 over 2y, 36% of budgetWinning for Women Inc: $200,000 over 1y, 13% of budgetDefending Democracy Together: $200,000 over 1y, 4.5% of budgetDefending Education: $175,000 over 1y, 3.4% of budgetNational Black Empowerment Action Fund Inc: $150,000 over 1y, 49% of budgetUkraine Freedom Project: $100,000 over 1y, 23% of budgetDrug Policy Action: $50,000 over 1y, 1.6% 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 8.

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 set of overlaps that mostly run through this funder rather than between each other.

Ardleigh Impact CorpVA13.6× affinity4 shared granteesties to 0 of 0Hover any node to trace its alignments.Compare side by side →

Open a dossier: Ardleigh Impact Corp

How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

Compare Summ Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Summ Foundation?

Find your warmest path to Summ 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 Summ Foundation

How much does Summ Foundation give?
Summ Foundation reported 4 grants totaling $3,170,000 in its FY2024 IRS filing.
What does Summ Foundation fund?
By grant dollars over FY2023 to FY2024, its largest causes are Public Benefit (59%), Civil Rights (36%), Education (3%).
Who are Summ Foundation's largest grantees?
By total granted over FY2023 to FY2024: With Honor Action Inc ($2.3M), American Unity Fund Inc ($1.7M), Welcomepac ($300k).
Which funders back the same organizations as Summ Foundation?
Its strongest co-funders, measured against what their size predicts, include Ardleigh Impact Corp.
Where is Summ Foundation based?
Summ Foundation is based in NY.

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 10 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 2024, released 2024. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Possibly out of date. A more recent filing (FY2025) is on record and reports $4k of grant expense, but none of it to a named recipient. On a Form 990 that can mean grants abroad, filed by region only (Schedule F), grants under $5,000, which are not itemized, or a schedule referenced as an attachment the e-file does not carry. The figures above are therefore from FY2024, the most recent year this funder named its grantees.

Source object · view filing

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