Posner Foundation | Foundation Profile

GrantBay analyzes IRS Form 990-PF data to help grant seekers find fit funders like Posner Foundation. Data shown is extracted from Form 990-PF filings.

EIN: 81-4837981

Foundation Overview

Based in Wilmington, DE, Posner Foundation has awarded 180 grants totaling $1,550,400 to organizations in Wisconsin, California and 3 other states across the US. Individual grants range from $1,000 to $34,000, with a median award of $9,700.

Latest Tax Year
2025
Total Giving (all years)
$1,550,400
Total Assets
$1,745,349
Median Grant (all grants)
$9,700

Latest Form 990-PF Snapshot

Total Grants
15
Median Grant
$10,000
% Median Grant Growth
+100% (vs previous year)
Data extracted from IRS Form 990-PF filings. Last filing year: May 2026

Foundation Intelligence

Advanced analytics and strategic insights to help nonprofit organizations assess grant opportunities and optimize their application strategies

New Applicant Friendliness
Closed Network: 7%

1 of 15 recipients (7%) were new grantees. Foundation maintains tight relationships with established partners. New applicants rarely succeed without insider connections.

Geographic Focus
California

57% of grants are awarded in California, with additional funding distributed across 4 other locations. The foundation balances regional focus with broader geographic diversity. Within California, funding concentrates in Los Angeles (27%), San Francisco (23%), Corte Madera (16%).

Funding Trajectory
+67%

Strong 67% growth in annual giving over 7 years indicates expanding philanthropic capacity and increasing opportunities for grant seekers. This upward trajectory suggests growing foundation resources and commitment.

Program Areas
General Purposes + 3 others

Diversified giving across multiple program areas with primary emphasis on general purposes (43%). This broad approach suggests openness to various causes and innovative cross-sector solutions.

Where is The Money Going?

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Grants & Funding

Analyzing past grantees provides valuable insights into Posner Foundation's funding preferences, organizational priorities, and grant making patterns. This historical data helps potential applicants understand the foundation's strategic focus and identify successful funding approaches.

Name Amount Location Purpose Year
Boys And Girls Club Of Greater Milwaukee Inc $8,000 Milwaukee, WI, US General & Unrestricted 2025
Childrens Hospital Of Wisconsin Inc $10,000 Milwaukee, WI, US General & Unrestricted 2025
Childrens Outing Assn $9,400 Milwaukee, WI, US General & Unrestricted 2025
Coalition For Children Youth & Families $10,000 West Allis, WI, US General & Unrestricted 2025
Get Lit Words Ignite Inc $4,000 Los Angeles, CA, US General & Unrestricted 2025
Greater Milwaukee Foundation Inc $10,000 Milwaukee, WI, US Israel Support Fund 2025
Marin Montessori School Inc $10,000 Corte Madera, CA, US General & Unrestricted 2025
Milwaukee Art Museum Inc $9,400 Milwaukee, WI, US General & Unrestricted 2025
Museum Associates $10,000 Los Angeles, CA, US General & Unrestricted 2025
Planned Parenthood Los Angeles $1,000 Los Angeles, CA, US General & Unrestricted 2025
Saint Josephs Arts Foundation $20,000 San Francisco, CA, US General & Unrestricted 2025
The Bay School Of San Francisco $5,000 San Francisco, CA, US For The Robotics Club And General Support 2025
The Branson School $25,000 Ross, CA, US General & Unrestricted 2025
The Desert Biennial $25,000 Palm Springs, CA, US Kimsooja's Installation To Breathe For Desert X 2025
University Of Wisconsin Foundation $10,000 Milwaukee, WI, US Cancer Research Fund 2025
Boys And Girls Club Of Greater Milwaukee Inc $5,000 Milwaukee, WI, US General & Unrestricted 2024
Childrens Environmental Literacy Foundation $2,000 Valhalla, NY, US General & Unrestricted 2024
Childrens Hospital Of Wisconsin Inc $5,000 Milwaukee, WI, US General & Unrestricted 2024
Childrens Outing Assn $5,000 Milwaukee, WI, US General & Unrestricted 2024
Coalition For Children Youth & Families $5,000 West Allis, WI, US General & Unrestricted 2024
Drew School $2,500 San Francisco, CA, US General & Unrestricted 2024
Get Lit Words Ignite Inc $10,000 Los Angeles, CA, US General & Unrestricted 2024
M F Place Inc $2,000 Hollywood, CA, US General & Unrestricted 2024
Marin Country Day School $1,000 Corte Madera, CA, US General & Unrestricted 2024
Marin Montessori School Inc $7,500 Corte Madera, CA, US General & Unrestricted 2024
Milwaukee Art Museum Inc $5,000 Milwaukee, WI, US General & Unrestricted 2024
Milwaukee Jewish Federation Inc $34,000 Milwaukee, WI, US Israel Support 2024
Museum Associates $10,000 Los Angeles, CA, US General Operating Support At The Director's Circle Level 2024
Planned Parenthood Los Angeles $2,000 Los Angeles, CA, US General & Unrestricted 2024
Saint Josephs Arts Foundation $20,000 San Francisco, CA, US General & Unrestricted 2024
The Bay School Of San Francisco $5,000 San Francisco, CA, US General & Unrestricted 2024
The Branson School $20,000 Ross, CA, US General & Unrestricted 2024
The Desert Biennial $12,000 Palm Springs, CA, US General & Unrestricted 2024
University Of Wisconsin Foundation $5,000 Milwaukee, WI, US Cancer Research At Uw Medical School 2024
White Feather Foundation $2,000 Seattle, WA, US General & Unrestricted 2024
Boys And Girls Club Of Greater Milwaukee Inc $5,000 Milwaukee, WI, US General & Unrestricted 2024
Childrens Environmental Literacy Foundation $2,000 Valhalla, NY, US General & Unrestricted 2024
Childrens Hospital Of Wisconsin Inc $5,000 Milwaukee, WI, US General & Unrestricted 2024
Childrens Outing Assn $5,000 Milwaukee, WI, US General & Unrestricted 2024
Coalition For Children Youth & Families $5,000 West Allis, WI, US General & Unrestricted 2024
Drew School $2,500 San Francisco, CA, US General & Unrestricted 2024
Get Lit Words Ignite Inc $10,000 Los Angeles, CA, US General & Unrestricted 2024
M F Place Inc $2,000 Hollywood, CA, US General & Unrestricted 2024
Marin Country Day School $1,000 Corte Madera, CA, US General & Unrestricted 2024
Marin Montessori School Inc $7,500 Corte Madera, CA, US General & Unrestricted 2024
Milwaukee Art Museum Inc $5,000 Milwaukee, WI, US General & Unrestricted 2024
Milwaukee Jewish Federation Inc $34,000 Milwaukee, WI, US Israel Support 2024
Museum Associates $10,000 Los Angeles, CA, US General Operating Support At The Director's Circle Level 2024
Planned Parenthood Los Angeles $2,000 Los Angeles, CA, US General & Unrestricted 2024
Saint Josephs Arts Foundation $20,000 San Francisco, CA, US General & Unrestricted 2024
The Bay School Of San Francisco $5,000 San Francisco, CA, US General & Unrestricted 2024
The Branson School $20,000 Ross, CA, US General & Unrestricted 2024
The Desert Biennial $12,000 Palm Springs, CA, US General & Unrestricted 2024
University Of Wisconsin Foundation $5,000 Milwaukee, WI, US Cancer Research At Uw Medical School 2024
White Feather Foundation $2,000 Seattle, WA, US General & Unrestricted 2024
Boys And Girls Club Of Greater Milwaukee Inc $10,000 Milwaukee, WI, US General & Unrestricted 2023
Childrens Hospital Of Wisconsin Inc $10,000 Milwaukee, WI, US General & Unrestricted 2023
Childrens Outing Assn $10,000 Milwaukee, WI, US General & Unrestricted 2023
Coalition For Children Youth & Families $10,000 Milwaukee, WI, US General & Unrestricted 2023
Creative Visions Foundation $2,000 Malibu, CA, US The White Feather Foundation: Indigenous Cultures 2023
Drew School $20,000 San Francisco, CA, US General & Unrestricted 2023
Get Lit Words Ignite Inc $10,000 Los Angeles, CA, US General & Unrestricted 2023
Israel Cancer Research Fund Inc $2,000 New York, NY, US Research Fund Led By Dr. Noga Ron-harel 2023
M F Place Inc $2,000 Hollywood, CA, US General & Unrestricted 2023
Marin Country Day School $1,000 Corte Madera, CA, US General & Unrestricted 2023
Marin Montessori School Inc $3,000 Corte Madera, CA, US General & Unrestricted 2023
Milwaukee Art Museum Inc $11,450 Milwaukee, WI, US General & Unrestricted 2023
Museum Associates $10,000 Los Angeles, CA, US Lacma Director's Circle Sponsorship Fund 2023
Saint Josephs Arts Foundation $20,000 San Francisco, CA, US General & Unrestricted 2023
The Bay School Of San Francisco $5,000 San Francisco, CA, US General & Unrestricted 2023
The Branson School $7,000 Ross, CA, US General & Unrestricted 2023
The Desert Biennial $10,000 Palm Springs, CA, US General & Unrestricted 2023
University Of Wisconsin Foundation $10,000 Milwaukee, WI, US Cancer Research At Uw Medical School 2023
Boys And Girls Club Of Greater Milwaukee Inc $10,000 Milwaukee, WI, US General & Unrestricted 2023
Childrens Hospital Of Wisconsin Inc $10,000 Milwaukee, WI, US General & Unrestricted 2023
Childrens Outing Assn $10,000 Milwaukee, WI, US General & Unrestricted 2023
Coalition For Children Youth & Families $10,000 Milwaukee, WI, US General & Unrestricted 2023
Creative Visions Foundation $2,000 Malibu, CA, US The White Feather Foundation: Indigenous Cultures 2023
Drew School $20,000 San Francisco, CA, US General & Unrestricted 2023
Get Lit Words Ignite Inc $10,000 Los Angeles, CA, US General & Unrestricted 2023
Israel Cancer Research Fund Inc $2,000 New York, NY, US Research Fund Led By Dr. Noga Ron-harel 2023
M F Place Inc $2,000 Hollywood, CA, US General & Unrestricted 2023
Marin Country Day School $1,000 Corte Madera, CA, US General & Unrestricted 2023
Marin Montessori School Inc $3,000 Corte Madera, CA, US General & Unrestricted 2023
Milwaukee Art Museum Inc $11,450 Milwaukee, WI, US General & Unrestricted 2023
Museum Associates $10,000 Los Angeles, CA, US Lacma Director's Circle Sponsorship Fund 2023
Saint Josephs Arts Foundation $20,000 San Francisco, CA, US General & Unrestricted 2023
The Bay School Of San Francisco $5,000 San Francisco, CA, US General & Unrestricted 2023
The Branson School $7,000 Ross, CA, US General & Unrestricted 2023
The Desert Biennial $10,000 Palm Springs, CA, US General & Unrestricted 2023
University Of Wisconsin Foundation $10,000 Milwaukee, WI, US Cancer Research At Uw Medical School 2023
Boys And Girls Club Of Greater Milwaukee Inc $10,000 Milwaukee, WI, US General & Unrestricted 2023
Childrens Hospital Of Wisconsin Inc $10,000 Milwaukee, WI, US General & Unrestricted 2023
Childrens Outing Assn $10,000 Milwaukee, WI, US General & Unrestricted 2023
Coalition For Children Youth & Families $10,000 Milwaukee, WI, US General & Unrestricted 2023
Creative Visions Foundation $2,000 Malibu, CA, US The White Feather Foundation: Indigenous Cultures 2023
Drew School $20,000 San Francisco, CA, US General & Unrestricted 2023
Get Lit Words Ignite Inc $10,000 Los Angeles, CA, US General & Unrestricted 2023
Israel Cancer Research Fund Inc $2,000 New York, NY, US Research Fund Led By Dr. Noga Ron-harel 2023
M F Place Inc $2,000 Hollywood, CA, US General & Unrestricted 2023
Marin Country Day School $1,000 Corte Madera, CA, US General & Unrestricted 2023
Marin Montessori School Inc $3,000 Corte Madera, CA, US General & Unrestricted 2023
Milwaukee Art Museum Inc $11,450 Milwaukee, WI, US General & Unrestricted 2023
Museum Associates $10,000 Los Angeles, CA, US Lacma Director's Circle Sponsorship Fund 2023
Saint Josephs Arts Foundation $20,000 San Francisco, CA, US General & Unrestricted 2023
The Bay School Of San Francisco $5,000 San Francisco, CA, US General & Unrestricted 2023
The Branson School $7,000 Ross, CA, US General & Unrestricted 2023
The Desert Biennial $10,000 Palm Springs, CA, US General & Unrestricted 2023
University Of Wisconsin Foundation $10,000 Milwaukee, WI, US Cancer Research At Uw Medical School 2023
Boys And Girls Club Of Greater Milwaukee Inc $7,500 Milwaukee, WI, US General & Unrestricted 2022
Childrens Hospital Of Wisconsin Inc $7,750 Milwaukee, WI, US General & Unrestricted 2022
Childrens Outing Assn $10,000 Milwaukee, WI, US General & Unrestricted 2022
Coalition For Children Youth & Families $10,000 Milwaukee, WI, US General & Unrestricted 2022
Creative Visions Foundation $2,500 Malibu, CA, US The White Feather Foundation 2022
Drew School $15,000 San Francisco, CA, US General & Unrestricted 2022
Get Lit Words Ignite Inc $10,000 Los Angeles, CA, US General & Unrestricted 2022
M F Place Inc $2,500 Hollywood, CA, US General & Unrestricted 2022
Marin Country Day School $5,000 Corte Madera, CA, US General & Unrestricted 2022
Milwaukee Art Museum Inc $8,000 Milwaukee, WI, US General & Unrestricted 2022
Museum Associates $10,000 Los Angeles, CA, US Lacama - Directors Circle Sponsorship 2022
Planned Parenthood Los Angeles $2,500 Los Angeles, CA, US General & Unrestricted 2022
The Branson School $20,000 Ross, CA, US General & Unrestricted 2022
The Desert Biennial $12,500 Palm Springs, CA, US General & Unrestricted 2022
University Of Wisconsin Foundation $10,000 Milwaukee, WI, US General & Unrestricted 2022
Boys And Girls Club Of Greater Milwaukee Inc $7,500 Milwaukee, WI, US General & Unrestricted 2022
Childrens Hospital Of Wisconsin Inc $7,750 Milwaukee, WI, US General & Unrestricted 2022
Childrens Outing Assn $10,000 Milwaukee, WI, US General & Unrestricted 2022
Coalition For Children Youth & Families $10,000 Milwaukee, WI, US General & Unrestricted 2022
Creative Visions Foundation $2,500 Malibu, CA, US The White Feather Foundation 2022
Drew School $15,000 San Francisco, CA, US General & Unrestricted 2022
Get Lit Words Ignite Inc $10,000 Los Angeles, CA, US General & Unrestricted 2022
M F Place Inc $2,500 Hollywood, CA, US General & Unrestricted 2022
Marin Country Day School $5,000 Corte Madera, CA, US General & Unrestricted 2022
Milwaukee Art Museum Inc $8,000 Milwaukee, WI, US General & Unrestricted 2022
Museum Associates $10,000 Los Angeles, CA, US Lacama - Directors Circle Sponsorship 2022
Planned Parenthood Los Angeles $2,500 Los Angeles, CA, US General & Unrestricted 2022
The Branson School $20,000 Ross, CA, US General & Unrestricted 2022
The Desert Biennial $12,500 Palm Springs, CA, US General & Unrestricted 2022
University Of Wisconsin Foundation $10,000 Milwaukee, WI, US General & Unrestricted 2022
Boys And Girls Club Of Greater Milwaukee Inc $8,000 Milwaukee, WI, US General & Unrestricted 2021
Childrens Hospital Of Wisconsin Inc $8,000 Milwaukee, WI, US General & Unrestricted 2021
Childrens Outing Assn $8,000 Milwaukee, WI, US General & Unrestricted 2021
Coalition For Children Youth & Families $8,000 Milwaukee, WI, US General & Unrestricted 2021
Drew School $15,000 San Francisco, CA, US General & Unrestricted 2021
Get Lit Words Ignite Inc $6,000 Los Angeles, CA, US General & Unrestricted 2021
M F Place Inc $1,500 Hollywood, CA, US General & Unrestricted 2021
Marin Country Day School $5,000 Corte Madera, CA, US General & Unrestricted 2021
Marin Primary & Middle School $2,500 Larkspur, CA, US General & Unrestricted 2021
Milwaukee Art Museum Inc $8,000 Milwaukee, WI, US General & Unrestricted 2021
Museum Associates $5,000 Los Angeles, CA, US Lacma - Director's Circle Sponsor Fund 2021
Saint Josephs Arts Foundation $25,000 San Francisco, CA, US General & Unrestricted 2021
The Desert Biennial $10,000 Palm Springs, CA, US "never Forget" Project Led By Nicholas Galanin 2021
University Of Wisconsin Foundation $6,750 Milwaukee, WI, US For Cancer Research At Uw Medical School Fund 2021
Boys And Girls Club Of Greater Milwaukee Inc $10,000 Milwaukee, WI, US General & Unrestricted 2020
Childrens Hospital Of Wisconsin Inc $10,000 Milwaukee, WI, US General & Unrestricted 2020
Childrens Outing Assn $4,000 Milwaukee, WI, US General & Unrestricted 2020
Coalition For Children Youth & Families $10,000 Milwaukee, WI, US General & Unrestricted 2020
Conquer Cancer Fdn Of The American Society Of Clin $5,000 Alexandria, VA, US General & Unrestricted 2020
Drew School $10,000 San Francisco, CA, US General & Unrestricted 2020
Get Lit Words Ignite Inc $5,000 Los Angeles, CA, US General & Unrestricted 2020
Intersection For The Arts $16,000 San Francisco, CA, US St. Joseph's Art Society Fund 2020
M F Place Inc $1,500 Hollywood, CA, US General & Unrestricted 2020
Marin Country Day School $10,000 Corte Madera, CA, US General & Unrestricted 2020
Milwaukee Art Museum Inc $10,000 Milwaukee, WI, US General & Unrestricted 2020
Museum Associates $10,000 Los Angeles, CA, US Lacma - Director's Circle Sponsor Fund 2020
Navy Seal Foundation Inc $4,500 Virginia Beach, VA, US General & Unrestricted 2020
The Desert Biennial $10,000 Palm Springs, CA, US General & Unrestricted 2020
University Of Wisconsin Foundation $4,000 Milwaukee, WI, US Cancer Research Fund At Uw Medical School 2020
Boys And Girls Club Of Greater Milwaukee Inc $10,000 Milwaukee, WI, US General & Unrestricted 2018
Childrens Cancer Research Fund $2,500 Los Angeles, CA, US General & Unrestricted 2018
Childrens Hospital Of Wisconsin Inc $10,000 Milwaukee, WI, US General & Unrestricted 2018
Childrens Outing Assn $10,000 Milwaukee, WI, US General & Unrestricted 2018
Conquer Cancer Fdn Of The American Society Of Clin $5,000 Alexandria, VA, US General & Unrestricted 2018
Hollywood Senior High School $2,500 Los Angeles, CA, US George Michaelis Scholarship Fund 2018
Hope House Of Milwaukee Inc $10,000 Milwaukee, WI, US General & Unrestricted 2018
M F Place Inc $10,000 Hollywood, CA, US General & Unrestricted 2018
Marin Country Day School $15,000 Corte Madera, CA, US Mcds Development Fund 2018
Museum Associates $5,000 Los Angeles, CA, US Lacma Educational Fund 2018
The Desert Biennial $10,000 Palm Springs, CA, US Desert X Project 2018
University Of California San Francisco Foundation $10,000 San Francisco, CA, US General & Unrestricted 2018

Foundations Similar to Posner Foundation

Discover 5 foundations with comparable assets ($1,711,112-$1,772,631), similar grant patterns, and geographic focus in DE that may also align with your organization's funding needs and grant seeking strategy.

Foundation Name Total Assets Typical Grant Size Service Area Similarity Match

EIN: 26-1385486 | 271 grants awarded
$1,737,643
(≈ Similar)
$5,000
median grant
Wilmington, DE
Same state
100%
Excellent match

EIN: 20-3821480 | 41 grants awarded
$1,736,839
(≈ Similar)
$12,500
median grant
Wilmington, DE
Same state
100%
Excellent match

EIN: 85-3325575 | 22 grants awarded
$1,734,818
(≈ Similar)
$14,000
median grant
Wilmington, DE
Same state
100%
Excellent match

EIN: 85-1573003 | 35 grants awarded
$1,772,631
(≈ Similar)
$5,000
median grant
Wilmington, DE
Same state
99%
Excellent match

EIN: 84-3101842 | 12 grants awarded
$1,711,112
(≈ Similar)
$10,000
median grant
Wilmington, DE
Same state
99%
Excellent match

Contact Information

Official contact details for Posner Foundation as registered with the IRS. These details are essential for grant applications, correspondence, and due diligence processes.

EIN 81-4837981
Website N/A
Address FOUNDATION SOURCE 501 SILVERSIDE RD Wilmington, DE 19809-0000

Key People (2)

Board members, trustees, and key staff who oversee Posner Foundation's grant making decisions and strategic direction. Understanding leadership composition can provide insights into foundation priorities and potential networking opportunities.

Pres, Treas, Dir David Posner
Dir, Sec, Vp Wendy Posner

Forms 990-PF

IRS Form 990-PF filings provide comprehensive financial information, grant details, and operational data. These documents are essential resources for understanding foundation capacity, giving patterns, and strategic priorities.

Form 990-PF Research Tips
  • Review Part XV for detailed grant recipient information and funding purposes
  • Check Part I for total assets, annual giving amounts, and payout requirements
  • Examine Part VIII for key personnel compensation and board structure
  • Look for trends across multiple years to understand giving patterns

About This Foundation Profile

This comprehensive foundation profile for Posner Foundation is powered by Grant Bay's advanced foundation research platform. Our system analyzes IRS Form 990-PF filings, grant histories, and philanthropic patterns to provide nonprofit organizations with actionable intelligence for grant seeking success.

Data Sources & Accuracy

All information is derived from official IRS filings and public records. Grant Bay processes thousands of Form 990-PF documents to extract grant details, financial data, and organizational information. Data accuracy depends on foundation reporting quality and IRS filing completeness.

Research Applications

Use this profile for prospect research, grant strategy development, application preparation, and relationship building. Combine this data with additional research on foundation priorities, application processes, and board member backgrounds for comprehensive grant seeking strategies.

Data Currency: Last updated May 2026 based on IRS Form 990-PF filings. Foundation information reflects most recent available tax year data.