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Louis Calder Foundation is a private trust based in DENVER, CO. The foundation received its IRS ruling in 1953. It holds total assets of $194.2M. Annual income is reported at $47.8M. The foundation is governed by 3 officers and trustees. Tax records are available from 2020 to 2023. Grantmaking is concentrated in New York. According to available records, Louis Calder Foundation has made 197 grants totaling $33M, with a median grant of $144K. The foundation has distributed between $7.9M and $16.2M annually from 2021 to 2023. Grantmaking activity was highest in 2022 with $16.2M distributed across 86 grants. Individual grants have ranged from $450 to $1M, with an average award of $168K. The foundation has supported 97 unique organizations. The foundation primarily supports organizations in New York, Colorado, California, which account for 37% of all grants. Grantmaking reaches organizations across 28 states. Contributions to this foundation are tax-deductible.
The Louis Calder Foundation operates as a quintessential proactive philanthropy institution — it does not accept unsolicited proposals, does not maintain an open application cycle, and does not review letters of inquiry from unknown organizations. This model fundamentally reframes how prospective grantees must engage: relationship-building is not optional, it is the entire strategy.
The foundation was established in 1951, is structured as a private trust, and is led by M. Alexander Calder as Trustee and Executive Director (compensated $349,807 as of the most recent filing). The Calder family remains actively involved in governance, with Peter D. Calder and Frank E. Shanley serving as trustees. This tight, family-influenced board structure means the foundation moves deliberately and tends to invest deeply in a small number of trusted partners rather than spreading funds broadly.
Organizations that earn funding typically share several characteristics: they operate in under-resourced communities, they have evidence of strong academic outcomes, and they fit cleanly within one of three defined investment themes — Growth of Charter Schools, Science of Reading, or Two-Generation Family Learning. General K-12 education organizations, after-school programs, or broad literacy initiatives that are not grounded in the science of reading will not find traction here. Fit must be precise.
The typical relationship progression is: (1) initial introduction through the field — via a peer organization, education conference, or direct outreach to proposals@calderfdn.org; (2) informal vetting and dialogue with program staff; (3) an invitation to submit a funding request; (4) potential site visit for larger asks; and (5) a multi-year grant relationship. The top 50 grantees in the foundation's data average 2.9 grants each, indicating the foundation sustains partnerships over time once established.
First-time applicants should study the grantee list carefully before making contact. Noting genuine alignment with organizations like KIPP, Springboard Collaborative, or Jeremiah Program — and articulating how your work complements rather than duplicates theirs — signals strategic awareness. Framing your pitch around the foundation's own language of "high-quality learning opportunities for children in under-resourced communities" is essential.
The Louis Calder Foundation has maintained a remarkably consistent grantmaking volume over more than a decade, with annual giving ranging from $9.3 million (2012) to $12.1 million (2020). Total assets stand at $194.18 million as of fiscal year 2024, up from $161.9 million in 2014 — a 20% increase over a decade driven by investment returns. The foundation pays no compensation to outside contributors and relies entirely on its endowment, generating $8.33 million in net investment income in the most recently filed year.
Grant size data (from 43 grants in the database sample): median grant = $150,000; average = $188,878; minimum = $1,000; maximum = $1,000,000. In practice, the most active grantee relationships generate cumulative totals of $250,000–$3,000,000 over multiple years. The top five recipients — Charter Fund Inc ($3M, 3 grants), Springboard Collaborative ($1.7M, 4 grants), New Schools For Alabama ($1.45M, 4 grants), Together Education Inc ($1.4M, 3 grants), and KIPP New York ($1.35M, 3 grants) — suggest that anchor partnerships can grow to seven-figure cumulative commitments.
By investment theme: Charter school growth consumes the largest share of grant volume, with at least 15 distinct organizations funded for "growth of charter schools" or "school growth" purposes. Science of Reading investments accelerated significantly in recent years and now represent a substantial portion of new commitments. Two-Generation Family Learning is a smaller but consistent portfolio, with six to eight active grantees receiving $200,000–$1.2M cumulatively.
Geography: New York tops the grantee count (37 grants), followed by Colorado (20), DC (14), California (15), Florida (11), Tennessee (10), and Alabama (8). The continental U.S.-only restriction is firm; no international or U.S. territory grants appear in the record.
Annual disbursements (grants paid): $6.6M (2018), $7.9M (2019), $8.9M (2020), $8.1M (2021), $7.9M (2022), and approximately $8.66M (2024).
The Louis Calder Foundation occupies a mid-tier national education philanthropy niche — large enough to fund multi-year anchor grants but focused enough to maintain close portfolio relationships. The comparison below benchmarks it against similarly positioned education-focused private foundations.
| Foundation | Assets | Annual Giving | Primary Focus | Application |
|---|---|---|---|---|
| Louis Calder Foundation | $194M | ~$8.7M | Charter schools, Science of Reading, Two-Gen Learning | Invited only |
| Walton Family Foundation | $4.3B | ~$595M | K-12 education reform, charter schools, environment | Invited only |
| Joyce Foundation | $1.1B | ~$50M | Education, workforce, democracy (Midwest) | Limited open |
| Overdeck Family Foundation | ~$500M | ~$30M | Early childhood, math/science education | Invited only |
| Robertson Foundation | ~$850M | ~$40M | Education, medical research, environment | Invited only |
Louis Calder punches above its size in education reform circles because of its narrow focus and sustained multi-year commitments — a $150,000–$300,000 grant from Calder carries more reputational weight in the charter school sector than the same dollar amount from a generalist funder. Its proactive model and family-governed structure make it more agile than larger foundations but also harder to access without existing relationships. Organizations already in the Walton or Overdeck portfolio are well-positioned to earn Calder introductions through shared grantees.
No major public announcements or leadership transitions were identified for 2025–2026 specifically. M. Alexander Calder continues as Trustee and Executive Director, a role he has held since at least 2020 when he succeeded Peter D. Calder, who served as Executive Director through December 31, 2019. His compensation has risen steadily from $249,548 (2019) to $349,807 (most recent filing), reflecting stable organizational leadership.
The most significant recent programmatic development is the growth of the Science of Reading investment theme, which has generated a cluster of new grantee relationships since approximately 2021–2022 — including KIPP Foundation ($1.125M, 3 grants), Cambiar Education ($1M, 4 grants), Instruction Partners ($600,000, 3 grants), and El Education ($250,000). This reflects the foundation's responsiveness to the national SOR movement and its willingness to fund both direct service organizations and capacity-building intermediaries.
The foundation's headquarters relocation from New York to Denver, Colorado (1331 17th Street, Suite 602, Denver, CO 80202) is a notable organizational development, though the New York grantee concentration (37 grants) remains dominant in the portfolio. The Denver base appears to have coincided with increased Colorado grantmaking (20 grants), including DSST Public Schools, University Preparatory Schools, Rocky Mountain Preparatory School, and Excellent Schools New Mexico.
Total assets reached $194.18 million in FY2024, the highest on record in the available data series.
The single most important tip: There is no application portal, no open RFP, and no unsolicited proposal review. Every grant relationship begins with the foundation reaching out — or with a warm introduction that prompts them to reach out. Cold applications are discarded.
Build visibility in the field first. The Louis Calder Foundation's program staff attend education sector convenings, follow charter authorizer networks, and monitor organizations cited in Science of Reading and early literacy research. Being featured in a sector publication, presenting at a conference, or being recommended by a current Calder grantee (e.g., Teach For America, KIPP, Springboard Collaborative) dramatically increases your chances of being approached.
Use the proposals@calderfdn.org email strategically. A brief, unsolicited introductory email (2–3 paragraphs maximum) is not the same as a full proposal. A well-crafted introduction that names your specific fit with one investment theme, cites a relevant outcome metric, and references 1–2 comparable grantees can open a conversation. Do not send a full proposal deck unprompted.
Align language precisely. Use the foundation's own terms: "high-quality learning opportunities," "under-resourced communities," "evidence-based science of reading," "two-generation," and "charter school growth." Avoid broad terms like "educational equity" or "student success" without connecting them to the foundation's specific themes.
Demonstrate evidence of impact. The foundation funds organizations with strong academic outcomes, not aspirational models. Have student achievement data, literacy gain metrics, or school quality ratings ready. Organizations funded at the highest levels (Charter Fund, KIPP, Springboard) all have robust external evaluations.
Plan for multi-year relationships. Do not approach this funder with a one-time project ask. Frame your work as a sustained growth trajectory — the foundation expects to fund the same organizations across 3–5 grant cycles. Articulate a roadmap.
Optimal timing: The foundation's fiscal year ends in October. Initial relationship-building contacts made in January–April give staff time to consider new additions to the portfolio ahead of grant cycle planning.
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Smallest Grant
$1K
Median Grant
$150K
Average Grant
$189K
Largest Grant
$1M
Based on 43 grants from the most recent 990-PF filing.
No program descriptions are available for this foundation. Many private foundations report program activities in their annual 990-PF filings — check the Tax Filings section below for the most recent filing.
The Louis Calder Foundation has maintained a remarkably consistent grantmaking volume over more than a decade, with annual giving ranging from $9.3 million (2012) to $12.1 million (2020). Total assets stand at $194.18 million as of fiscal year 2024, up from $161.9 million in 2014 — a 20% increase over a decade driven by investment returns. The foundation pays no compensation to outside contributors and relies entirely on its endowment, generating $8.33 million in net investment income in the mos.
Louis Calder Foundation has distributed a total of $33M across 197 grants. The median grant size is $144K, with an average of $168K. Individual grants have ranged from $450 to $1M.
The Louis Calder Foundation operates as a quintessential proactive philanthropy institution — it does not accept unsolicited proposals, does not maintain an open application cycle, and does not review letters of inquiry from unknown organizations. This model fundamentally reframes how prospective grantees must engage: relationship-building is not optional, it is the entire strategy. The foundation was established in 1951, is structured as a private trust, and is led by M. Alexander Calder as Tru.
Louis Calder Foundation is headquartered in DENVER, CO. While based in CO, the foundation distributes grants to organizations across 28 states.
| Name | Title | Compensation | Benefits | Total |
|---|---|---|---|---|
| M Alexander Calder | TRUSTEE/EXECUTIVE DIRECTOR | $350K | $0 | $350K |
| Frank E Shanley | TRUSTEE | $161K | $0 | $161K |
| Peter D Calder | TRUSTEE | $161K | $0 | $161K |
Total Giving
$10.9M
Total Assets
$171.4M
Fair Market Value
N/A
Net Worth
$171.4M
Grants Paid
N/A
Contributions
N/A
Net Investment Income
$8.3M
Distribution Amount
$8.7M
Total Grants
197
Total Giving
$33M
Average Grant
$168K
Median Grant
$144K
Unique Recipients
97
Most Common Grant
$150K
of 2023 grantees were first-time recipients
| Recipient | Location | Amount | Year |
|---|---|---|---|
| Charter Fund IncGROWTH OF CHARTER SCHOOLS | Broomfield, CO | $1M | 2023 |
| Achievement First IncSCIENCE OF READING | New Haven, CT | $500K | 2023 |
| Kipp New York IncSCIENCE OF READING | New York, NY | $450K | 2023 |
| Cambiar EducationSCIENCE OF READING | Los Angeles, CA | $400K | 2023 |
| Jeremiah ProgramTWO-GENERATION FAMILY LEARNING | Minneapolis, MN | $400K | 2023 |
| New Schools For AlabamaGROWTH OF CHARTER SCHOOLS | Birmingham, AL | $400K | 2023 |
| Springboard CollaborativeSCIENCE OF READING | Philadelphia, PA | $300K | 2023 |
| Teach For America IncACCELERATED LEARNING | New York, NY | $300K | 2023 |
| Building Responsible Intelligent Creative KidsGROWTH OF CHARTER SCHOOLS | Newark, NJ | $250K | 2023 |
| El Education IncSCIENCE OF READING | New York, NY | $250K | 2023 |
| The Opportunity TrustGROWTH OF CHARTER SCHOOLS | St Louis, MO | $250K | 2023 |
| Dekalb Brilliance Academy IncGROWTH OF CHARTER SCHOOLS | Decatur, GA | $200K | 2023 |
| Vista College Preparatory IncSCIENCE OF READING | Phoenix, AZ | $200K | 2023 |
| Becoming Collegiate Academy IncGROWTH OF CHARTER SCHOOLS | Jacksonville, FL | $200K | 2023 |
| Room To Grow National IncTWO-GENERATION FAMILY LEARNING | Bronx, NY | $200K | 2023 |
| Seton Education PartnersGROWTH OF CHARTER SCHOOLS | New York, NY | $200K | 2023 |
| University Charter SchoolSCIENCE OF READING | Livingston, AL | $200K | 2023 |
| Reach Out And Read IncTWO-GENERATION FAMILY LEARNING | Boston, MA | $175K | 2023 |
| Clarksdale CollegiateGROWTH OF CHARTER SCHOOLS | Clarksdale, MS | $150K | 2023 |
| Great Hearts AmericaCURRICULUM | Phoenix, AZ | $150K | 2023 |
| Lift IncTWO-GENERATION FAMILY LEARNING | Washington, DC | $150K | 2023 |
| Rocketship Public Schools TexasGROWTH OF CHARTER SCHOOLS | San Antonio, TX | $150K | 2023 |
| Nashville ClassicalGROWTH OF CHARTER SCHOOLS | Nashville, TN | $125K | 2023 |
| Valley SettlementTWO-GENERATION FAMILY LEARNING | Glenwood Springs, CO | $125K | 2023 |
| Impact Public SchoolsSCIENCE OF READING | Tukwila, WA | $115K | 2023 |
| Vocel Viewing Our Children As Emerging Leaders NfpTWO-GENERATION FAMILY LEARNING | Chicago, IL | $100K | 2023 |
| Allegiance Steam Academy IncGROWTH OF CHARTER SCHOOLS | Chino, CA | $100K | 2023 |
| Avance IncTWO-GENERATION FAMILY LEARNING | San Antonio, TX | $100K | 2023 |
| Traininggrounds IncTWO-GENERATION FAMILY LEARNING | Slidell, LA | $100K | 2023 |
| Zest Preparatory Academy IncGROWTH OF CHARTER SCHOOLS | Douglasville, GA | $100K | 2023 |
| Excellent Schools New MexicoGROWTH OF CHARTER SCHOOLS | Albuquerque, NM | $100K | 2023 |
| Boys & Girls Clubs Of Northeast FloridaTRUSTEE DISCRETIONARY SUPPORT FOR HIGH QUALITY LEARNING OPPORTUNITY | Jacksonville Beach, FL | $65K | 2023 |
| Visiting Nurse Assn Of Central Jersey IncTRUSTEE DISCRETIONARY SUPPORT FOR HIGH QUALITY LEARNING OPPORTUNITY | Holmdel, NJ | $50K | 2023 |
| Mercy Center CorporationTRUSTEE DISCRETIONARY SUPPORT FOR HIGH QUALITY LEARNING OPPORTUNITY | Asbury Park, NJ | $30K | 2023 |
| West Palm Golf Community Trust IncTRUSTEE DISCRETIONARY SUPPORT FOR HIGH QUALITY LEARNING OPPORTUNITY | West Palm Beach, FL | $25K | 2023 |
| Philanthropy ColoradoGENERAL OPERATING SUPPORT | Arvada, CO | $2K | 2023 |
| Peak Grantmaking IncGENERAL OPERATING SUPPORT | Washington, DC | $2K | 2023 |
| Grantmakers For EducationGENERAL OPERATING SUPPORT | Portland, OR | $2K | 2023 |
| Chalkbeat IncRESEARCH | New York, NY | $1K | 2023 |
| Teachers College Colombia UniversityRESEARCH | New York, NY | $1K | 2023 |
| The 74 Media IncRESEARCH | New York, NY | $1K | 2023 |
| Tntp IncACCELERATED LEARNING | New York, NY | $465K | 2022 |