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Sijbrandij Foundation at a glance

· Private foundation

Sijbrandij Foundation

Its FY2024 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$5.4M
Granted FY2024still arriving
16
Grants FY2024still arriving
7
States reached
$1.5M
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
0198% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2021 to 2024.

Philanthropy$11MScience & Tech$6.5MInternational$5.5MEducation$1.7MCommunity Improvement$1.0MSocial Science$950kEmployment$780kArts & Culture$420kOther$0
02FY2024 · 16 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2024

  • $10k–50k2 grants · $50k
  • $50k–250k6 grants · $859k
  • $250k+8 grants · $4.5M
$250,000
Median grant
7
States reached
$79M
Total assets
Largest grants
RecipientAmount
OPEN RESEARCH LAB$1,500,000
INFORMATION AGE ACADEMY (THE LEVIT LAB INC)$1,000,000
GLOBAL IMPACT$505,810
GLOBAL IMPACT$399,629
GLOBAL IMPACT$311,474
Individual grant recipient$310,000
LAND USE ATLAS INC$250,000
DIGITAL HARBOR FOUNDATION (TALENT MOBILITY FUND)$250,000
ILLUMINATE (ACCESSIBLE BIG ART - NAGA AND THE CAPTAINESS)$249,522
Individual grant recipient$220,000
KIWIX$120,000
UNIVERSITY OF CHICAGO$109,208
ABUNDANCE NETWORK EDUCATION$100,000
UCLA FOUNDATION$60,000
UCLA FOUNDATION (HOUSING VOICE PODCAST - JANA GALLUS)$31,950
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:

Dollar for dollar, its grants (FY21–24) land where the poverty rate runs at 10%, against an area that typically sits at 10%. 53% of its dollars go to grantees based in above-average-need neighborhoods. Its grants spread fairly evenly across need levels.

area typical 10%THIRD SECTOR: $470k → 16%SIGNAL TECHNOLOGY FOUNDATION: $1.0M → 8%KELLER RESTAURANT RELIEF FUND: $10k → 9%PADI AWARE FOUNDATION: $100k → 10%UBI CHARITABLE INC: $5.0M → 10%KIWIX: $120k → 10%UCLA FOUNDATION: $207k → 14%UNICEF: $59k → 17%RIT RESEARCH INSTITUTE ON TURKEY: $100k → 20%CENTER FOR INNOVATIVE GOVERNANCE RESEARCH CHARTER CITIES INSTITUTE: $750k → 14%SAVE THE CHILDREN FEDERATION: $16k → 9%INFORMATION AGE ACADEMY (THE LEVIT LAB INC): $1.0M → 12%UNIVERSITY OF CHICAGO: $109k → 14%AGORA UNIVERSITY INC: $100k → 6%MERCATUS CENTER AT GEORGE MASON UNIVERSITY (IP): $100k → 7%GLOBAL IMPACT: $2.0M → 9%DIGITAL HARBOR FOUNDATION (TALENT MOBILITY FUND): $250k → 19%SECOND HARVEST OF SILICON VALLEY: $10k → 8%OPEN RESEARCH LAB: $1.5M → 10%WIKIMEDIA FOUNDATION (KIWIX): $100k → 10%UCLA FOUNDATION: $60k → 14%UNICEF: $10k → 17%LAND USE ATLAS INC: $250k → 14%AGORA UNIVERSITY: $98k → 6%GLOBAL IMPACT: $1.0M → 9%THE LAST MILE: $78k → 10%UCLA FOUNDATION (HOUSING VOICE PODCAST - JANA GALLUS): $32k → 14%DOCTORS WITHOUT BORDERS: $15k → 17%GLOBAL IMPACT: $1.0M → 9%THE LAST MILE: $71k → 10%AMNESTY INTERNATIONAL: $14k → 17%GLOBAL IMPACT: $506k → 9%MID MARKET FOUNDATION (ACCESSIBLE BIG ART - HEARTFULLNESS): $18k → 10%GLOBAL IMPACT: $400k → 9%MISALIGNMENT MUSEUM: $51k → 10%GLOBAL IMPACT: $311k → 9%MISALIGNMENT MUSEUM: $1k → 10%GLOBAL IMPACT: $124k → 9%GITLAB FOUNDATION: $4.0M → 10%GITLAB FOUNDATION: $1.7M → 10%GITLAB FOUNDATION: $1.7M → 10%GITLAB FOUNDATION: $1.7M → 10%GITLAB FOUNDATION: $1.7M → 10%ILLUMINATE (ACCESSIBLE BIG ART - NAGA AND THE CAPTAINESS): $250k → 10%ABUNDANCE NETWORK EDUCATION: $100k → 10%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.

Which US states its grants reach

IL
NY
MA
CT
CA
CO
VA
MD
DC
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.

53%of every dollar goes to organizations it has funded before.
$12M · 5 repeat orgs$11M to everyone else

Grantees it renews have grown median revenue +468% since the first grant, against -4% for those funded once.

5 repeat relationships: 1 still active in FY2024, 4 since wound down; 10 grantees were first funded in FY2024 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

5
13

Total granted

$12M
$7.3M

Median revenue growth · since first grant

+468%
-4%

Still filing today

80%
77%

New vs renewed · share of each year

In FY2024, 13% of grant dollars renewed an existing relationship; $3.6M went to new ones.

50%100%’21’22’23’24
RenewedFirst-time

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

’21’22’23’24
InternationalPhilanthropySocial ScienceScience & TechCommunity ImprovementReligionOther
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

  • GF
    GITLAB FOUNDATION
    2× · 2022–2023 · $11M · revenue +642%
  • IG
    Individual grant recipient
    2× · 2023–2024 · $1.0M
  • AU
    AGORA UNIVERSITY INC
    2× · 2022–2023 · $198k · revenue +468%

Funded once

  • UC
    UBI Charitable Inc
    one grant, 2021 · $5.0M · revenue -70% · 94% of their budget
  • ST
    SIGNAL TECHNOLOGY FOUNDATION
    one grant, 2022 · $1.0M · revenue +13%
  • CF
    CENTER FOR INNOVATIVE GOVERNANCE RESEARCH CHARTER CITIES INSTITUTE
    one grant, 2023 · $750k
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
Open Markets Institute

The open markets institute works to help people relearn how to use competition policy to build stronger democracies, more just and equitable societies, more innovative and sustainable economies, and a more secure and peaceful world.

Education
2
Observer Research Foundation America

Organization mission the observer research foundation america orf america is an independent, non-partisan, and nonprofit organization in washington dc dedicated to addressing policy challenges facing the united states, india, and their…

International
3
Clarity Ai Research Inc

Transluce is an independent research lab that builds open, scalable technology for understanding ai systems and steering them in the public interest.

Science & Tech
4
UChicago Research International

To engage in scientific research and educational activities throughout the world on behalf of and in conjunction with the university of chicago.

Health
5
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
6
The Berkeley Policy Institute Inc
Social Science
7
National Opinion Research Center

See schedule onorc at the university of chicago conducts research and data science on critical societal issues to guide decision-making and the development of programs and public policy. our experts identify relationships and trends, and…

Social Science
8
Orcid Inc

Orcid provides an identifier for individuals to use with their name as they engage in research, scholarship, and innovation activities. we provide open tools that enable transparent and trustworthy connections between researchers, their…

Education
9
The Uc Davis Foundation

The mission of the uc davis foundation is to secure, steward and manage private gifts for uc davis.

Education
10
Technology Policy Institute
International
11
Arc Research Institute

Our mission is to accelerate scientific progress, understand the root causes of disease, and narrow the gap between discoveries and impact on patients.

Health
12
Activate Global Inc

Activate empowers scientists to reinvent the world by bringing their research to market. activate partners with u.s. based funders, research institutions, and other pillars of the hard technology community to help entrepreneurial…

Environment
How this is measured
The grantee most central to the portfolio’s shape is Medecins Sans Frontieres Usa Inc; the most unlike its peers is Keller Restaurant Relief Fund. 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

20 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. 20 of the 30 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.

2
Load-bearing (≥25% of a budget)
3
Early backer (in before they grew)
20/20
Grantees still filing
9/20
Grew since first funded

Where the money sits, by cause and then by grantee

GITLAB FOUNDATION: $10,700,000 · PhilanthropyGITLAB FOUNDATIONUBI Charitable Inc: $5,000,000 · PhilanthropyUBI Charitable IncGlobal Impact: $5,341,302 · InternationalGlobal Impact+3 more: $100,340 · InternationalIndividual grant recipient: $1,000,000 · OtherIndividual grant…INFORMATION AGE ACADEMY (THE LEVIT LAB INC): $1,000,000 · OtherINFORMATION AGE …CENTER FOR INNOVATIVE GOVERNANCE RESEARCH CHARTER CITIES INSTITUTE: $750,000 · OtherCENTER FOR INNOV…DIGITAL HARBOR FOUNDATION (TALENT MOBILITY FUND): $250,000 · OtherDIGITAL HARBOR F…ILLUMINATE (ACCESSIBLE BIG ART - NAGA AND THE CAPTAINESS): $249,522 · OtherILLUMINATE (ACCE…AGORA UNIVERSITY INC: $198,000 · OtherTURN 2 U INC dba THE LAST MILE: $149,385 · Other+11 more: $656,029 · Other+11 moreOpen Research Lab: $1,500,000 · Science & TechAbundance Network Education: $100,000 · Science & TechSIGNAL TECHNOLOGY FOUNDATION: $1,000,000 · Community ImprovementUCLA FOUNDATION: $267,096 · EducationUniversity of Chicago: $109,208 · EducationLAND USE ATLAS INC: $250,000 · Public Benefit
Philanthropy$15,700,000International$5,441,642Other$4,252,936Science & Tech$1,600,000Community Improvement$1,000,000Education$376,304Public Benefit$250,000

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

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetGlobal Impact: $5,341,302 over 3y, 3.8% of budgetUBI Charitable Inc: $5,000,000 over 1y, 94% of budgetOpen Research Lab: $1,500,000 over 1y, 8.2% of budgetSIGNAL TECHNOLOGY FOUNDATION: $1,000,000 over 1y, 3.8% of budgetUCLA FOUNDATION: $267,096 over 2y, 0.0% of budgetLAND USE ATLAS INC: $250,000 over 1y, 16% of budgetAGORA UNIVERSITY INC: $198,000 over 2y, 15% of budgetTURN 2 U INC dba THE LAST MILE: $149,385 over 2y, 1.2% of budgetUniversity of Chicago: $109,208 over 1y, 0.0% of budgetRESEARCH INSTITUTE ON TURKEY INC: $100,000 over 1y, 27% of budgetPADI AWARE FOUNDATION: $100,000 over 1y, 7.1% of budgetMercatus Center Inc: $100,000 over 1y, 0.2% of budgetUNITED STATES FUND FOR UNICEF: $68,794 over 1y, 0.0% of budgetMISALIGNMENT MUSEUM: $52,142 over 2y, 7.9% of budgetSave The Children Federation Inc: $16,419 over 1y, 0.0% of budgetMEDECINS SANS FRONTIERES USA INC: $15,127 over 1y, 0.0% of budgetSECOND HARVEST OF SILICON VALLEY: $10,000 over 1y, 0.0% of budgetKELLER RESTAURANT RELIEF FUND: $10,000 over 1y, 10% 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.

Silicon Valley Commun…Gs Donor Advised Phil…National Philanthropi…American Online Givin…Donor Advised Charita…Fidelity Investments …Amazonsmile Foundation
Silicon Valley Community FoundationCA14.7× affinity6 shared granteesties to 6 of 6Hover any node to trace its alignments.Compare side by side →

Open a dossier: Silicon Valley Community Foundation · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · National Philanthropic Trust · American Online Giving Foundation Inc · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · 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 Sijbrandij Foundation funds: left to right is the share of its income from government, bottom to top the share from Sijbrandij Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 00%6%25%56%100%funder's share of their income ↑0%10%20%30%40%share of the org’s income from government →median 30%
  • Save the Children Federation Inc: 30% of income from government
no gov moneyreceives it· size = income
0get no government money at all
2report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–40%
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 Sijbrandij Foundation?

Find your warmest path to Sijbrandij 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 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-PF e-file return for fiscal year 2024, released 2024. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

Play a game based on Sijbrandij’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