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Colorado · Private foundation

Louis Calder Foundation

Its FY2024 filing reports that it accepted unsolicited grant applications.

$6.9M
Granted FY2024(still arriving)
35
Grants FY2024
40
Organizations funded FY2023
35%
First-time grantees FY2023
Read the full brief
Median grant, FY2024
$100,000
Largest grant, FY2024
$1,000,000
Organizations funded a year
40 to 70
FY2019 to FY2023
States reached, FY2024
18
Total assets, FY2024
$194M
Applications
Takes unsolicited applications
Per its most recent filing; check its own site

How open it is to new grantees

In FY2023, 35% of the organizations Louis Calder Foundation funded were first-time grantees, receiving 26% of its grant dollars.

New vs renewed · share of each year

In FY2023, 74% of grant dollars renewed an existing relationship; $2.0M went to new ones.

50%100%’20’21’22’23
RenewedFirst-time

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

’20’21’22’23
EducationPhilanthropyYouth DevelopmentHuman ServicesArts & CultureHousing & ShelterOther
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.
The numbers by year
Fiscal yearOrganizations fundedTo those organizationsFirst-time grantees
FY2024still arriving35$6.9M20%
FY202340$7.9M35%
FY202242$8.1M38%
FY202156$8.8M23%
FY202070$7.9M49%
FY201956$6.6Mn/a
100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2019 to 2024.

Education$43MHuman Services$2.1MYouth Development$890kRecreation & Sports$430kPhilanthropy$106kHealth$50kArts & Culture$28kPublic Safety & Disaster$25kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

WA
ID
MN
IL
WI
NY
MA
OR
SD
IN
OH
PA
NJ
CT
RI
CA
CO
MO
VA
MD
AZ
NM
TN
NC
DC
OK
LA
MS
AL
GA
TX
FL

Top grantees

Largest recipients by total granted, FY2019 to FY2024, and the share of each one’s budget the grants supplied at peak.

GranteeTotal grantedYearsShare of their budget
Charter Fund Inc D/B/A Charter School Growth Fund$4,050,00051%
Array Education Inc$1,750,00033%
Springboard Collaborative$1,600,00043%
Achievement First Inc$1,250,00041%
Cambiar Education$1,200,00032%
Kipp New York Inc$1,200,00041%
Kipp Foundation$1,200,00031%
Jeremiah Program$1,200,00032%
Instruction Partners$1,125,00043%
Impact Public Schools$1,095,00065%
Show all 127 grantees
All grantees of Louis Calder Foundation by total granted
GranteeTotal grantedYearsShare of their budget
Charter Fund Inc D/B/A Charter School Growth Fund$4,050,00051%
Array Education Inc$1,750,00033%
Springboard Collaborative$1,600,00043%
Achievement First Inc$1,250,00041%
Cambiar Education$1,200,00032%
Kipp New York Inc$1,200,00041%
Kipp Foundation$1,200,00031%
Jeremiah Program$1,200,00032%
Instruction Partners$1,125,00043%
Impact Public Schools$1,095,00065%
Tntp Inc$1,085,00031%
New Schools for Alabama$1,050,00035%
Seton Education Partners$900,00035%
Clarksdale Collegiate$775,00056%
University Charter School$757,00054%
Nashville Classical Charter School$735,00063%
Teach for America Inc$700,00030%
Commonlit Inc$700,00024%
Tulsa Honor Academy Inc$655,00035%
Reach University$650,00027%
Rocky Mountain Preparatory Schools$608,50021%
Excellent Schools New Mexico$550,000439%
Bellwether Education Partners Inc$500,00021%
Thomas B Fordham Institute$500,000314%
The Opportunity Trust D/B/A Zest Education$500,00022%
Greathearts America$500,00034%
University Preparatory Schools$475,000313%
Vista College Preparatory Inc$450,00042%
IDEA Public Schools$450,00020%
Building Responsible Intelligent Creative Kids$450,00025%
Becoming Collegiate Academy Inc$435,000278%
Valor Collegiate Academies$430,00031%
Vertex Partnership Academies Inc$400,000213%
Room to Grow National Inc$400,00024%
Classical Charter Schools$368,00031%
Reach Out and Read Inc$350,00021%
Johns Hopkins University$309,97530%
Alma del Mar Foundation Inc$307,00036%
Ethos Classical Charter School Inc$300,000332%
Dekalb Brilliance Academy Inc$300,00025%
Colorado Schools Fund$300,00012%
New Schools for Baton Rouge$300,00023%
Kipp Enc Public Schools$277,00030%
Libertas School of Memphis$270,00023%
Atlas Preparatory School Inc$255,00021%
Fugees Family Inc$255,00025%
Third Future Schools$250,00011%
Navigator Schools$250,00031%
El Education Inc$250,00011%
KIPP Colorado Schools$250,00020%
Parentchild Inc$245,00033%
Henderson Collegiate Inc$245,00021%
Public Preparatory Network Inc$230,00032%
I3 Academy$230,0003n/a
Valley Settlement$225,00022%
Kipp Jacksonville Inc$220,00021%
Kipp Miami Inc$220,00023%
Persistence Preparatory Academy Charter School$202,00024%
TrainingGrounds Inc$200,000211%
Zest Preparatory Academy Inc$200,0002n/a
Allegiance Steam Academy Inc$200,00021%
Vocel Viewing our Children as Emerging Leaders$200,00025%
Partnership for Inner City Education Dba Partnership Schools$195,00021%
Strive Preparatory Schools$195,00010%
Buffalo Collegiate Charter School$170,00026%
Boys and Girls Club of Northeast Florida Inc$165,00020%
Pataula Charter Academy$157,00021%
Aequitas Education$157,000220%
Lift Inc$151,00021%
True North Classical Academy Inc$150,00011%
Literacy Partners Inc$150,00014%
Rocketship Public Schools Texas$150,00012%
Dsst Public Schools Foundation$150,00021%
Future Public School Inc$143,25034%
Elan Academy Inc dba Elan Academy Char$130,00026%
Rocketship Education$125,00020%
Red Cloud Indian School$125,0002n/a
Aurora Community School$120,00014%
Notre Dame School of Milwaukee Inc$120,0002n/a
Treasure Valley Classical Academy Inc$118,00014%
Gem Prep Pocatello LLC$115,00028%
Cristo Rey Richmond High School Inc$110,00026%
Sgms Foundation$105,000242%
The Achievement Network Ltd$100,00010%
Gem Prep Meridian South LLC$100,000115%
Equitas Academy Charter School$100,00010%
Mastery Charter Schools Foundation$100,00011%
Miles Ahead Charter School$100,00012%
Leep Dual Language Academy Charter School$100,000120%
Empirical Resolution Inc$100,00012%
Honor Preparatory Charter School$100,0001n/a
Island Park Elementary Charter School Inc$100,00026%
Spring Initiative Inc$100,00024%
Denver School of Science and Technology Inc$100,00011%
Norwalkstamford Grassroots Tennis & Education Inc$100,00029%
Pace Center for Girlsinc$100,00010%
Invictus Nashville Charter School$100,000114%
Gem Prep Meridian North LLC$100,00016%
Friends of Springfield Preparatory Charter School Inc$80,000231%
Relay Graduate School of Education$75,00010%
West Palm Golf Community Trust Inc$75,00020%
Red Bank Catholic High School$70,0003n/a
Savannah Early Childhood Foundation$65,000219%
The Philanthropy Roundtable$65,00030%
Nativity School of Worcester Inc$60,00012%
Mercy Center Corporation$57,00021%
Visiting Nurse Association of Central Jersey$50,00010%
Grow Public Schools$50,00010%
Vega Collegiate Academy$27,00011%
Paramount Schools of Excellence$27,00010%
Great Lakes Academy Inc$27,00011%
Brass City Charter School$27,00011%
Community United Services Inc$25,00015%
Herron High School Inc$25,00010%
Savannah Youth Development Foundation Inc$25,00019%
Interfaith Neighbors Inc$25,00010%
Center for Creative Education$25,00010%
Catholic Partnership Schools Camden$20,0001n/a
Gem Prep Nampa LLC$15,00010%
Candid$15,00020%
Peak Grantmaking Inc$15,00060%
Philanthropy Colorado$9,58060%
Civic News Company$3,00030%
The 74 Media Inc$3,00030%
Teachers College Columbia University$2,00020%
Philanthropy New York Inc$1,35030%
Association of Small Foundations$47010%

What it could do for these grantees

Plus 13 recipients with no EIN on record ($3.2M), not named here.

Where it is load-bearing

Louis Calder Foundation supplied at least a quarter of the budget for 5 of its grantees at some point. The chart plots its 120 largest grantees; load-bearing ones sit top left.

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetCharter Fund Inc D/B/A Charter School Growth Fund: $4,050,000 over 5y, 0.8% of budgetArray Education Inc: $1,750,000 over 3y, 3.1% of budgetSpringboard Collaborative: $1,600,000 over 4y, 2.6% of budgetAchievement First Inc: $1,250,000 over 4y, 1.2% of budgetCambiar Education: $1,200,000 over 3y, 1.9% of budgetKipp New York Inc: $1,200,000 over 4y, 1.2% of budgetKipp Foundation: $1,200,000 over 3y, 0.7% of budgetJeremiah Program: $1,200,000 over 3y, 2.2% of budgetInstruction Partners: $1,125,000 over 4y, 2.7% of budgetImpact Public Schools: $1,095,000 over 6y, 5.3% of budgetTntp Inc: $1,085,000 over 3y, 0.7% of budgetNew Schools for Alabama: $1,050,000 over 3y, 5.0% of budgetSeton Education Partners: $900,000 over 3y, 5.0% of budgetClarksdale Collegiate: $775,000 over 5y, 5.9% of budgetUniversity Charter School: $757,000 over 5y, 3.6% of budgetNashville Classical Charter School: $735,000 over 6y, 3.0% of budgetTeach for America Inc: $700,000 over 3y, 0.1% of budgetCommonlit Inc: $700,000 over 2y, 4.4% of budgetTulsa Honor Academy Inc: $655,000 over 3y, 4.8% of budgetReach University: $650,000 over 2y, 7.4% of budgetRocky Mountain Preparatory Schools: $608,500 over 2y, 1.3% of budgetExcellent Schools New Mexico: $550,000 over 4y, 39% of budgetBellwether Education Partners Inc: $500,000 over 2y, 1.4% of budgetThomas B Fordham Institute: $500,000 over 3y, 14% of budgetThe Opportunity Trust D/B/A Zest Education: $500,000 over 2y, 2.0% of budgetGreathearts America: $500,000 over 3y, 3.8% of budgetUniversity Preparatory Schools: $475,000 over 3y, 13% of budgetVista College Preparatory Inc: $450,000 over 4y, 1.6% of budgetIDEA Public Schools: $450,000 over 2y, 0.0% of budgetBuilding Responsible Intelligent Creative Kids: $450,000 over 2y, 4.9% of budgetBecoming Collegiate Academy Inc: $435,000 over 2y, 78% of budgetValor Collegiate Academies: $430,000 over 3y, 0.9% of budgetVertex Partnership Academies Inc: $400,000 over 2y, 13% of budgetRoom to Grow National Inc: $400,000 over 2y, 4.3% of budgetClassical Charter Schools: $368,000 over 3y, 0.6% of budgetReach Out and Read Inc: $350,000 over 2y, 0.9% of budgetJohns Hopkins University: $309,975 over 3y, 0.0% of budgetAlma del Mar Foundation Inc: $307,000 over 3y, 5.8% of budgetEthos Classical Charter School Inc: $300,000 over 3y, 32% of budgetDekalb Brilliance Academy Inc: $300,000 over 2y, 5.0% of budgetColorado Schools Fund: $300,000 over 1y, 2.3% of budgetNew Schools for Baton Rouge: $300,000 over 2y, 2.6% of budgetKipp Enc Public Schools: $277,000 over 3y, 0.3% of budgetLibertas School of Memphis: $270,000 over 2y, 3.2% of budgetAtlas Preparatory School Inc: $255,000 over 2y, 0.9% of budgetFugees Family Inc: $255,000 over 2y, 4.7% of budgetThird Future Schools: $250,000 over 1y, 1.2% of budgetNavigator Schools: $250,000 over 3y, 0.9% 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 120.

Nonprofits that may fit its grantmaking

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.

Charter Fund Inc D/B/A Charter School Growth FundCO109.1× affinity54 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Charter Fund Inc D/B/A Charter School Growth Fund · New Schools Fund · Walton Family Foundation Inc · City Fund · Gates Foundation · Daniels Fund · 50can Inc · Carnegie Corporation of New York · Robin Hood Foundation · The Robert D and Patricia E Kern Family Foundation Inc · Charles and Helen Schwab Foundation · Rooted

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 Louis Calder Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Louis Calder Foundation?

Find your warmest path to Louis Calder 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 Louis Calder Foundation

How much does Louis Calder Foundation give?
Louis Calder Foundation reported 35 grants totaling $6,877,700 in its FY2024 IRS filing. It funded between 40 and 70 organizations a year over FY2019 to FY2023.
What does Louis Calder Foundation fund?
By grant dollars over FY2019 to FY2024, its largest causes are Education (92%), Human Services (4%), Youth Development (2%).
Who are Louis Calder Foundation's largest grantees?
By total granted over FY2019 to FY2024: Charter Fund Inc D/B/A Charter School Growth Fund ($4.0M), Array Education Inc ($1.8M), Springboard Collaborative ($1.6M).
Does Louis Calder Foundation fund new organizations?
In FY2023, 35% of the organizations it funded were first-time grantees.
Does Louis Calder Foundation accept unsolicited applications?
Its most recent filing reports that it accepts unsolicited grant applications.
Which funders back the same organizations as Louis Calder Foundation?
Its strongest co-funders, measured against what their size predicts, include Charter Fund Inc D/B/A Charter School Growth Fund, New Schools Fund, Walton Family Foundation Inc.
Where is Louis Calder Foundation based?
Louis Calder Foundation is based in CO.

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 142 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

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