Skip to content
Arastradero Foundation at a glance

· Private foundation

Arastradero Foundation

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.

$43k
Granted FY2025still arriving
6
Grants FY2025still arriving
2
States reached
$25k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
0196% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Education$278kHealth$28kReligion$16kYouth Development$10kHuman Services$8kRecreation & Sports$5kFood & Nutrition$5kInternational$2kOther$0
02FY2025 · 6 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k4 grants · $8k
  • $10k–50k2 grants · $35k
$5,000
Median grant
2
States reached
$2.0M
Total assets
Largest grants
RecipientAmount
MERRIMACK COLLEGE$25,000
BOYS AND GIRLS CLUB OF GREATER LOWELL$10,000
IMMACULATE CONCEPTION$5,000
TRUSTEES OF TUFTS UNIV MED SCHOOL$1,500
POPE ST JOHN XXIII SEMINARY$1,000
Individual grant recipient$250
02The need
03

Does the money reach high-need areas?

Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.

show:

Its human-services grants (FY20–23, $200) land where the poverty rate runs at 14%, against an area that typically sits at 10%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 10%MY BROTHERS KEEPER: $100 → 11%BOSTON HEALTH CARE FOR THE HOMELESS: $100 → 16%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount
How this is measured
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty line in the grantee’s ZIP, averaged from the tracts in that ZIP.
How this is measured
US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

88%of every dollar goes to organizations it has funded before.
$311k · 9 repeat orgs$42k to everyone else

Grantees it renews have grown median revenue +50% since the first grant, against +13% for those funded once.

9 repeat relationships: 5 still active in FY2025, 4 since wound down; 1 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

9
13

Total granted

$311k
$32k

Median revenue growth · since first grant

+50%
+13%

Still filing today

33%
62%

New vs renewed · share of each year

In FY2025, 77% of grant dollars renewed an existing relationship; $10k went to new ones.

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

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

’17’18’19’20’21’22’23’24’25
EducationHuman ServicesHealthFood & NutritionYouth DevelopmentInternationalOther
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.

Backed again, and grew

  • MERRIMACK COLLEGE
    6× · 2020–2025 · $155k · revenue +38%
  • ST JUDE CHILDREN'S RESEARCH HOSPITAL INC
    3× · 2022–2024 · $23k · revenue +59%
  • Trustees of Tufts College
    5× · 2017–2022 · $8k · revenue +50%

Funded once

  • WOUNDED WARRIOR PROJECT INC
    one grant, 2024 · $8k · revenue +12%
  • SA
    SCHOLAR ATHLETES INC
    one grant, 2017 · $5k · revenue -91%
  • PROJECT BREAD-THE WALK FOR HUNGER INCgraduated
    one grant, 2018 · $5k · revenue +188%
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.

04Its field

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.

1
Boston Architectural College

The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.

—
2
Massachusetts Institute of Technology

The mission of mit is to advance knowledge and educate students in science, technology, and other areas of scholarship that will best serve the nation and the world in the 21st century.

Education
3
Trustees of Boston University

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.…

—
4
Mass General Brigham Incorporated & Affiliates Group Return

Mass general brigham incorporated is developing an integrated health care delivery system throughout the region that offers patients a continuum of coordinated, high-quality care.

Health
5
Massachusetts Higher Education Assistance Corporation

The organization's primary exempt purpose is to provide access to and conduct activities in furtherance of higher education.

—
6
Children's Hospital Corporation

Provider of pediatric healthcare, education, research & community service

Health
7
Wentworth Institute of Technology Inc

Wentworth institute of technology is a nationally recognized private coeducational and residential university of higher education with a mission to empower, inspire and innovate through experiential learning with a core purpose of career…

Education
8
Mass General Brigham Health Plan Inc

Mass general brigham health plan's mission is to promote the health and wellness of our members, and to help ensure equitable, affordbale health care for the diverse communities we serve.

Health
9
Mcphs University

Mcphs university prepares students for careers in health care through teaching, scholarship, research, professional service and community engagement.

Education
10
Stony Brook Internists University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
11
Trustees of Boston College

Mission strengthened by more than a century and a half of dedication to academic excellence, boston college commits itself to the highest standards of teaching and research in undergraduate, graduate and professional programs and to the…

Education
12
Stony Brook Urology University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
How this is measured
The grantee most central to the portfolio’s shape is Wounded Warrior Project Inc; the most unlike its peers is Blood Cancer United Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
04the grantee network

13 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. 13 of the 23 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.

0
Load-bearing (≥25% of a budget)
1
Early backer (in before they grew)
12/13
Grantees still filing
10/13
Grew since first funded

Where the money sits, by cause and then by grantee

MERRIMACK COLLEGE: $155,000 · EducationMERRIMACK COLLEGETrustees of Tufts College: $8,000 · Education+2 more: $5,250 · EducationIMMACULATE CONCEPTION: $95,500 · OtherIMMACULATE CONCEPTIONPOPE ST JOHN XXIII SEMINARY: $15,000 · OtherPOPE ST JOHN XXIII SEMINARYLOWELL CATHOLIC: $10,000 · OtherLOWELL CATHOLICSCHOLAR ATHLETES INC: $5,000 · Other+7 more: $6,400 · OtherST JUDE CHILDREN'S RESEARCH HOSPITAL INC: $22,500 · HealthBLOOD CANCER UNITED INC: $5,000 · HealthBOYS & GIRLS CLUB OF GREATER LOWELL INC: $10,000 · Youth DevelopmentWOUNDED WARRIOR PROJECT INC: $7,500 · Human Services+2 more: $200 · Human ServicesPROJECT BREAD-THE WALK FOR HUNGER INC: $5,000 · Food & NutritionMARY QUEEN OF HEAVEN INC: $2,000 · International
Education$168,250Other$131,900Health$27,500Youth Development$10,000Human Services$7,700Food & Nutrition$5,000International$2,000

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$10M$100Mgrantee revenue →↑ funder's share of their budgetMERRIMACK COLLEGE: $155,000 over 6y, 0.0% of budgetST JUDE CHILDREN'S RESEARCH HOSPITAL INC: $22,500 over 3y, 0.0% of budgetTrustees of Tufts College: $8,000 over 5y, 0.0% of budgetWOUNDED WARRIOR PROJECT INC: $7,500 over 1y, 0.0% of budgetSCHOLAR ATHLETES INC: $5,000 over 1y, 0.1% of budgetPROJECT BREAD-THE WALK FOR HUNGER INC: $5,000 over 1y, 0.1% of budgetBLOOD CANCER UNITED INC: $5,000 over 1y, 0.0% of budgetSTEPHEN SILLER TUNNEL TO TOWERS FOUNDATION: $5,000 over 1y, 0.0% of budgetMARY QUEEN OF HEAVEN INC: $2,000 over 1y, 0.1% of budgetELLIE FUND INC: $250 over 1y, 0.0% of budgetMy Brothers Keeper Inc: $100 over 1y, 0.0% of budgetBOSTON HEALTH CARE FOR THE HOMELESS PROGRAM INC: $100 over 1y, 0.0% of budget
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.

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.

Cummings Foundation G…Eastern Bank Foundati…Verizon FoundationMorgan Stanley Global…Vanguard Charitable E…American Online Givin…Fidelity Investments …Donor Advised Charita…Amazonsmile Foundation
Cummings Foundation Grants Inc (Fka Oneworld Boston Inc)MA13.5× affinity4 shared granteesties to 8 of 8Hover any node to trace its alignments.Compare side by side →

Open a dossier: Cummings Foundation Grants Inc (Fka Oneworld Boston Inc) · Eastern Bank Foundation · Verizon Foundation · Morgan Stanley Global Impact Funding Trust Inc · Vanguard Charitable Endowment Program · American Online Giving Foundation Inc · Fidelity Investments Charitable Gift Fund · Donor Advised Charitable Giving Inc · Amazonsmile Foundation

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.

How much its grantees rely on government

Each dot is one organization Arastradero Foundation funds: left to right is the share of its income from government, bottom to top the share from Arastradero Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 10%0%1%3%5%funder's share of their income ↑0%8%15%22%30%share of the org’s income from government →median 13%
  • Boys & Girls Club of Greater Lowell Inc: 27% of income from government
  • Ellie Fund Inc: 15% of income from government
  • Trustees of Tufts College: 13% of income from government
  • Boston Health Care for the Homeless Program Inc: 8% of income from government
  • Merrimack College: 1% of income from government
  • Wounded Warrior Project Inc: 0% of income from government
no gov moneyreceives it· size = income
1get no government money at all
1report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–30%
typical government reliance, FY20–25
How this is measured
Government income is each org’s traced federal awards (USASpending grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that a grant caused the public funding. Coverage is precision-first, a floor rather than a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12 to 24 months.
05Through Plinth

Warm introductions · Powered by PlinthPlus

How do I get to Arastradero Foundation?

Find your warmest path to Arastradero 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.

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 23 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-PF 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

Play a game based on Arastradero’s filings →

More from the funding graph

The unnamed billions
grants reported with no recipient in the public record
The regranting layer
51% of grant dollars land in the regranting layer
The DAF merry-go-round
$9.7B circulates between donor-advised funds
The endowment market
who holds foundation money, and what just moved
The camps
funders cluster by geography, not ideology
By state
where grant money is based, and what stays home