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Plinth

· Private foundation

Constantinides Family 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.

$41k
Granted FY2025still arriving
4
Grants FY2025still arriving
2
States reached
$24k
Largest
01What you fund
0198% classified

What you funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year — across FY20192025.

Religion$324kEducation$57kHealth$56kHuman Services$44kInternational$37kArts & Culture$15kFood & Nutrition$14kPublic Safety & Disaster$10kOther$0
02FY2025 · 4 grants

Where the money goes

Your grants by size, and where they go.

By grant size · FY2025

  • Under $10k2 grants · $7k
  • $10k–50k2 grants · $34k
$10,000
Median grant
2
States reached
$1.6M
Total assets
Largest grants
RecipientAmount
ST DEMETRIS GREEK ORTHODOX CHURCH$24,000
TUNNEL TO TOWER FOUNDATION$10,000
RONALD MCDONALD HOUSE CHARITIES OF BALTI$5,000
SEVERN COVENANT CHURCH$1,500
02The need
03

Do your dollars go where the need is?

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

show:

Your human-services grants (FY19–25, $42k) land where the poverty rate runs at 19%, against an area that typically sits at 8%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-need ZIPs.

area typical 8%RONALD MCDONALD HOUSE CHARITIES OF BALTI: $12k → 19%RONALD MCDONALD HOUSE CHARITIES OF BALTI: $8k → 19%RONALD MCDONALD HOUSE CHARITIES OF BALTI: $6k → 19%RONALD MCDONALD HOUSE CHARITIES OF BALTI: $5k → 19%RONALD MCDONALD HOUSE CHARITIES OF BALTI: $5k → 19%RONALD MCDONALD HOUSE CHARITIES OF BALTI: $5k → 19%RONALD MCDONALD HOUSE CHARITIES OF BALTI: $500 → 19%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount

Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.

Which US states your grants reach

NY
MA
NJ
CT
CA
MD
TN
NC
DC
LA
FL

US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving.

03Your edge
repeat funding

Who you back again

Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.

84%of every dollar goes to organizations you’ve funded before.
$480k · 15 repeat orgs$93k to everyone else

And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +82% since the first grant, against +24% for the ones you funded once.

15 repeat relationships — 4 still active in FY2025, 11 since wound down.

How the two cohorts compare

Re-uppedFunded once

Organizations

15
24

Total granted

$480k
$93k

Median revenue growth · since first grant

+82%
+24%

Still filing today

60%
38%

New vs renewed · share of each year

In FY2025, 100% of grant dollars renewed an existing relationship; $0 went to new ones.

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

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

’19’20’21’22’23’24’25
HealthEducationArts & CultureInternationalHuman ServicesReligionOther

First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). 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

  • RM
    RONALD MCDONALD HOUSE CHARITIES OF MARYLAND INC
    7× · 2019–2025 · $42k · revenue +9%
  • STEPHEN SILLER TUNNEL TO TOWERS FOUNDATION
    5× · 2021–2025 · $32k · revenue +112%
  • ST JUDE CHILDREN'S RESEARCH HOSPITAL INC
    5× · 2019–2024 · $21k · revenue +99%

Funded once

  • FRIENDS OF THE ISRAEL DEFENSE FORCES
    one grant, 2024 · $20k · revenue 0%
  • AR
    AMERICAN RED CROSS
    one grant, 2024 · $10k
  • SA
    SAINT ANDREW ROMANIAN ORTHODOX CHURCH
    one grant, 2024 · $7k

Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.

04Your field

The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.

1
The Johns Hopkins Hospital

For more than 125 years, the mission of the johns hopkins hospital has been to lead the world in the diagnosis and treatment of disease and to train tomorrow's great physicians, nurses and scientists. above all, we aim to provide the…

Health
2
Memorial Sloan-Kettering Cancer Center

Leadership in the prevention, treatment, and cure of cancer through excellence, vision and cost effectiveness in patient care, outreach programs, research, and education.

Health
3
Fred Hutchinson Cancer Center

Fred hutch cancer center ("fred hutch") unites innovative research and compassionate care to prevent and eliminate cancer and infectious disease. continued on schedule o

Health
4
Sanford Burnham Prebys Medical Discovery Institute

Sanford burnham prebys medical discovery institute's mission is to advance the biomedical sciences by cultivating the next generation of scientific leaders, providing meaningful opportunities for researchers of all backgrounds to learn,…

Health
5
Dana-Farber Cancer Institute Inc

The mission of dfci is to provide expert, compassionate, and equitable care to children, adults, and their families, while advancing the understanding, diagnosis, treatment, cure, and prevention of cancer and related diseases. we train new…

Health
6
Howard Hughes Medical Institute

The mission of the institute has remained constant since its founding in 1953. as its restated articles of incorporation state the primary purpose and objective of the howard hughes medical institute shall be the promotion of human…

Health
7
New York University

Nyu is a private university with approximately 60,000 matriculating students in 20 schools and institutes. nyu's primary missions are education, research and scholarship, and patient care.

Education
8
The Susan G Komen Breast Cancer Fdn Group

Susan g. komen 's mission is to save lives by meeting the most critical needs in our communities & investing in breakthrough research to prevent & cure breast cancer.

9
University of Minnesota Physicians

University of minnesota physicians serves as the integrated group practice for the university of minnesota medical school full-time faculty to provide the highest quality healthcare to patients and their families.university of minnesota…

Health
10
Medstar Health Inc

Plan, develop, coordinate, direct and manage an integrated healthcare system.

Health
11
Lucy Webb Hayes National Training School for Deaconesses & Missionaries

Sibley memorial hospital in washington, d.c., a member of johns hopkins medicine, has a distinguished history of serving the community since its founding in 1890. as a not-for-profit, full-service community hospital, sibley offers…

Health
12
Hugo W Moser Research Institute At Kennedy Krieger Inc

The hugo w. moser research institute at kennedy krieger, inc. (the "research institute") is an internationally recognized research facility finding answers to problems and injuries that affect a child's developing brain. researchers have…

Science & Tech

For reference, the grantee most central to the portfolio’s shape is St Jude Children's Research Hospital Inc and the most unlike its peers is Samaritan's Purse. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.

For each theme you fund, this compares how the sector’s money is shifting with how your own giving is shifting.

← shrinkinggrowing →↓ leaning in → pulling backsteadyJewish Community FederationsVeteran Support ServicesFaith-Based Liberal Arts Co…Community Arts OrganizationsClassical Music EnsemblesAnimal Rescue and AdoptionChristian Missionary Organi…Cancer Support OrganizationsFood Pantries & Assistance
the sector your giving your giving is ahead of the sector the sector’s ahead of you· dot size = how much the theme matters to each side
Ordered by the change in your giving — leaning in on top, pulling back at the bottom. The bar between the two dots is how out of step you are with the sector. Hover any row for detail.

Sector change and giving change are each shown relative to their own range, growing (right) or shrinking (left); both normalized, so inflation isn’t mistaken for growth.

Your grantees are a median of 35 years old; the field is 14. You back the established end — and your money leans older still.

THE FIELDby orgYOUR GRANTEESby number22%4%<5yr16%4%5–10yr19%13%10–20yr16%26%20–35yr11%26%35–55yr16%26%55yr+
THE FIELDby orgYOUR MONEYby value22%11%<5yr16%2%5–10yr19%6%10–20yr16%18%20–35yr11%40%35–55yr16%24%55yr+

The field is 22% startups (under 5 years old) — 4% of your grantees by number, and just 11% of your money.

Closures · last 5 years

The orgs you fund almost never close 0.0% lost their exemption, against 14% of the field you don’t fund.

orgs you fund
0.0%0/25
the rest of the field
14%
5,903/41,824

Age = years since IRS exemption (a founding proxy). “Closed” = auto-revocation for 3 years of non-filing — a floor on closure, not proof, and bigger established orgs lapse least. Association, not causation.

04the grantee network

20 grantees tracked through their own filings, 2017–2025.

Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.

Counted here: distinct organizations you funded across 20172025, not grant rows in a single year — so this will not match the grant count on the cover. 20 of the 41 grantees resolved in that span have returns of their own we could reconcile; the rest are funded organizations whose filings we could not track year by year.

0
Load-bearing (≥25% of a budget)
1
Early backer (in before they grew)
20/20
Grantees still filing
14/20
Grew since you first funded

Where your money sits — by cause, then by grantee

ST DEMETRIS GREEK ORTHODOX CHURCH — $261,650 · OtherST DEMETRIS GREEK ORTHODOX CHURCHGREEK ORTHODOX CATHEDRAL OF THE ANNUNCIATION — $27,000 · OtherGREEK ORTHODOX CATHEDRAL OF THE ANNUNCIATIONMEDSTAR UNION MEMORIAL HOSPTIAL — $25,000 · OtherMEDSTAR UNION MEMORIAL HOSPTIAL+24 more — $95,700 · Other+24 moreSTEPHEN SILLER TUNNEL TO TOWERS FOUNDATION — $32,000 · EducationSTEPHEN SIL…TOWSON UNIVERSITY FOUNDATION INC — $12,000 · EducationTOWSON UNIV…President and Fellows of Harvard College — $5,000 · EducationPresident a…THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY — $5,000 · EducationTHE BOARD O…CAL RIPKEN SR FOUNDATION INC — $3,000 · EducationRONALD MCDONALD HOUSE CHARITIES OF MARYLAND INC — $41,500 · Human ServicesFRIENDS OF THE ISRAEL DEFENSE FORCES — $20,000 · InternationalAMERICAN FRIENDS OF MAGEN DAVID ADOM — $5,000 · InternationalST JUDE CHILDREN'S RESEARCH HOSPITAL INC — $21,000 · HealthBLOOD CANCER UNITED INC — $2,000 · Health+1 more — $500 · HealthBALTIMORE SYMPHONY ORCHESTRA INC — $8,500 · Arts & CultureCENTER STAGE ASSOCIATES INC — $6,000 · Arts & CultureSAMARITAN'S PURSE — $12,000 · Religion
Other$409,350Education$57,000Human Services$41,500International$25,000Health$23,500Arts & Culture$14,500Religion$12,000

Each org by its size and your share of it — top-left is where you’re load-bearing

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ your share of their budgetRONALD MCDONALD HOUSE CHARITIES OF MARYLAND INC — $41,500 over 7y, 0.2% of budgetSTEPHEN SILLER TUNNEL TO TOWERS FOUNDATION — $32,000 over 5y, 0.0% of budgetST JUDE CHILDREN'S RESEARCH HOSPITAL INC — $21,000 over 5y, 0.0% of budgetFRIENDS OF THE ISRAEL DEFENSE FORCES — $20,000 over 1y, 0.0% of budgetTHE MARYLAND FOOD BANK INC — $13,500 over 2y, 0.0% of budgetTOWSON UNIVERSITY FOUNDATION INC — $12,000 over 2y, 0.1% of budgetSAMARITAN'S PURSE — $12,000 over 3y, 0.0% of budgetBALTIMORE SYMPHONY ORCHESTRA INC — $8,500 over 4y, 0.0% of budgetMETRO-MARYLAND YOUTH FOR CHRIST INC — $7,000 over 3y, 0.3% of budgetCENTER STAGE ASSOCIATES INC — $6,000 over 5y, 0.0% of budgetHAVEN MINISTRIES INC — $5,000 over 1y, 0.4% of budgetAMERICAN FRIENDS OF MAGEN DAVID ADOM — $5,000 over 1y, 0.0% of budgetPresident and Fellows of Harvard College — $5,000 over 1y, 0.0% of budgetTHE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY — $5,000 over 1y, 0.0% of budgetBALTIMORE ANIMAL RESCUE AND CARE SHELTER BARCS — $3,000 over 1y, 0.1% of budgetCAL RIPKEN SR FOUNDATION INC — $3,000 over 1y, 0.0% of budgetHOPE CENTER OF MARYLAND INC — $2,100 over 1y, 0.3% of budgetBLOOD CANCER UNITED INC — $2,000 over 1y, 0.0% of budgetMDRC — $1,000 over 1y, 0.0% of budgetTHE MULTIPLE MYELOMA RESEARCH FOUNDATION INC — $500 over 1y, 0.0% of budget
Go grantee by grantee — a decade per org, and how each moved after you funded them

A decade per grantee — revenue shaded, your grants as bars, all rows on one timeline.

  • Who funds RONALD MCDONALD HOUSE CHARITIES OF MARYLAND INC
  • Who funds STEPHEN SILLER TUNNEL TO TOWERS FOUNDATION
  • Who funds ST JUDE CHILDREN'S RESEARCH HOSPITAL INC
  • Who funds FRIENDS OF THE ISRAEL DEFENSE FORCES
  • Who funds THE MARYLAND FOOD BANK INC
  • Who funds TOWSON UNIVERSITY FOUNDATION INC
  • Who funds SAMARITAN'S PURSE
  • Who funds BALTIMORE SYMPHONY ORCHESTRA INC
  • Who funds METRO-MARYLAND YOUTH FOR CHRIST INC
  • Who funds CENTER STAGE ASSOCIATES INC
  • Who funds HAVEN MINISTRIES INC
  • Who funds AMERICAN FRIENDS OF MAGEN DAVID ADOM
  • Who funds President and Fellows of Harvard College
  • Who funds THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
  • Who funds BALTIMORE ANIMAL RESCUE AND CARE SHELTER BARCS
  • Who funds CAL RIPKEN SR FOUNDATION INC
  • Who funds HOPE CENTER OF MARYLAND INC
  • Who funds BLOOD CANCER UNITED INC
  • Who funds MDRC
  • Who funds THE MULTIPLE MYELOMA RESEARCH FOUNDATION INC

The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a tightly interlocked camp — most of these funders back each other's grantees too.

Donor Advised Charitable Giving IncCO6× affinity6 shared granteesties to 2 of 2Hover any node to trace its alignments.Compare side by side →

Open a dossier: Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile Foundation

Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. A research starting point: overlap is association, not proof of shared intent.

Government reliance of your grantees

Every dot is one organization Constantinides Family Foundation funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal, a single department, or state — and drag the year to watch it move.

2024
202122232425
no gov · 20%0%1%3%5%your share of their income ↑0%23%45%68%90%share of the org’s income from governmentmedian 11%
  • Cal Ripken Sr Foundation Inc12% of income from government
  • The Maryland Food Bank Inc11% of income from government
  • Baltimore Symphony Orchestra Inc11% of income from government
  • President and Fellows of Harvard College7% of income from government
  • Center Stage Associates Inc7% of income from government
no gov moneyreceives it· size = income
2get no government money at all
5report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–90%
typical government reliance, FY2025

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 your grant caused the public funding. Coverage is precision-first — a floor, not 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 12–24 months.

On method. Every financial figure here is read directly from IRS e-file XML — your own 990/990-PF and the multi-year returns of the 41 grantees we resolved across every year we hold, several hundred filings in all (a different count from the grant rows on the cover, which are one fiscal year)— each linked to its source. Grantee achievements and outcomes are each organization’s own program-service reporting (Form 990, Part III); we read these as association with sustained funding — the foundation is one of several forces — suppress low-confidence name matches rather than guess, and say so where a figure rests on a single grant or filing. Not everything on this page is a filed figure, and the difference matters. Filed is what you reported on your 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. How we build these →

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

Source object · view filing

More from the funding graph