Diffenbaugh Foundation | Foundation Profile

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

EIN: 95-6048727

Foundation Overview

Based in Stanford, CA, Diffenbaugh Foundation has awarded 54 grants totaling $115,750 to organizations in California, New York and 3 other states across the US. Individual grants range from $250 to $7,000, with a median award of $1,000.

Latest Tax Year
2023
Total Giving (all years)
$115,750
Total Assets
$248,126
Median Grant (all grants)
$1,000

Latest Form 990-PF Snapshot

Total Grants
4
Median Grant
$2,000
% Median Grant Growth
+100% (vs previous year)
Data extracted from IRS Form 990-PF filings. Last filing year: February 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: N/A

0 of 4 recipients (0%) were new grantees. Foundation maintains tight relationships with established partners. New applicants rarely succeed without insider connections.

Geographic Focus
California

80% of all grants are concentrated in California, demonstrating highly focused geographic giving. This foundation prioritizes deep community impact in its primary service area. Within California, funding concentrates in Sausalito (19%), Half Moon Bay (19%), San Rafael (16%).

Funding Trajectory
-55%

Declining funding trend with 55% decrease over 7 years may indicate reduced grant opportunities or shifting foundation priorities. This trajectory suggests more competitive application environment.

Program Areas
General Purposes

Highly focused on general purposes with 100% of funding dedicated to this sector. This specialization indicates deep expertise and committed investment in the field.

Where is The Money Going?

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Grants & Funding

Analyzing past grantees provides valuable insights into Diffenbaugh 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
Marine Mammal Center $3,000 Sausalito, CA, US General 2023
Mount Madonna Institute $1,000 Watsonville, CA, US General 2023
Vermillion Sea Institute $1,000 Bonita, CA, US General 2023
Wildman Science Learning $3,000 Half Moon Bay, CA, US General 2023
Marine Mammal Center $3,000 Sausalito, CA, US General 2022
National Resources Defense Council $500 New York, NY, US General 2022
Second Harvest Food Bank $1,000 San Jose, CA, US General 2022
Vermillion Sea Institute $1,000 Bonita, CA, US General 2022
Wildcare $2,500 San Rafael, CA, US General 2022
Wildman Science Learning $6,000 Half Moon Bay, CA, US General 2022
Mount Madonna Institute $1,000 Watsonville, CA, US General 2022
Marine Mammal Center $3,000 Sausalito, CA, US General 2022
National Resources Defense Council $500 New York, NY, US General 2022
Second Harvest Food Bank $1,000 San Jose, CA, US General 2022
Vermillion Sea Institute $1,000 Bonita, CA, US General 2022
Wildcare $2,500 San Rafael, CA, US General 2022
Wildman Science Learning $6,000 Half Moon Bay, CA, US General 2022
Mount Madonna Institute $1,000 Watsonville, CA, US General 2022
Marine Mammal Center $3,000 Sausalito, CA, US General 2022
National Resources Defense Council $500 New York, NY, US General 2022
Second Harvest Food Bank $1,000 San Jose, CA, US General 2022
Vermillion Sea Institute $1,000 Bonita, CA, US General 2022
Wildcare $2,500 San Rafael, CA, US General 2022
Wildman Science Learning $6,000 Half Moon Bay, CA, US General 2022
Mount Madonna Institute $1,000 Watsonville, CA, US General 2022
Marine Mammal Center $3,000 Sausalito, CA, US General 2021
National Resources Defense Council $1,000 New York, NY, US General 2021
Second Harvest Food Bank $1,000 San Jose, CA, US General 2021
Wildcare $3,000 San Rafael, CA, US General 2021
Wildman Science Learning $6,000 Half Moon Bay, CA, US General 2021
Vermillion Sea Institute $1,000 Bonita, CA, US General 2021
Marine Mammal Center $4,000 Sausalito, CA, US General 2020
National Resources Defense Council $1,000 New York, NY, US General 2020
Wildcare $3,000 San Rafael, CA, US General 2020
Wildman Science Learning $6,000 Half Moon Bay, CA, US General 2020
Second Harvest Food Bank $1,000 San Jose, CA, US General 2020
Marine Mammal Center $4,000 Sausalito, CA, US General 2018
National Resources Defense Council $1,000 New York, NY, US General 2018
Wildcare $3,000 San Rafael, CA, US General 2018
Wildmind Science Learning $7,000 Half Moon Bay, CA, US General 2018
Second Harvest Food Bank $1,500 San Jose, CA, US General 2016
Marin Food Bank $500 San Francisco, CA, US General 2016
World Wildlife Fund $500 Washington, DC, US General 2016
Acknowledge Alliance $500 Mountain View, CA, US General 2016
Marin Humane Society $500 Novato, CA, US General 2016
Wildlife Associates $5,000 Half Moon Bay, CA, US General 2016
Wildcare $2,500 San Rafael, CA, US General 2016
National Resources Defense Council $500 New York, NY, US General 2016
Nature Conservancy $500 Arlington, VA, US General 2016
Mount Madonna School $1,000 Watsonville, CA, US General 2016
Marine Mammal Center $1,000 Sausalito, CA, US General 2016
Defenders Of Wildlife $500 Merrifield, VA, US General 2016
Youth Villages (formerly Camellia Network) $3,000 Marylhurst, OR, US General 2016
Adolescent Counseling Services $250 Palo Alto, CA, US General 2016

Foundations Similar to Diffenbaugh Foundation

Discover 5 foundations with comparable assets ($246,406-$249,881), similar grant patterns, and geographic focus in CA 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: 95-4715077 | 13 grants awarded
$248,048
(≈ Similar)
$1,750
median grant
Valencia, CA
Same state
100%
Excellent match

EIN: 87-3711863 | 33 grants awarded
$249,174
(≈ Similar)
$500
median grant
San Ramon, CA
Same state
100%
Excellent match

EIN: 77-0454211 | 10 grants awarded
$249,610
(≈ Similar)
$1,000
median grant
San Jose, CA
Same state
100%
Excellent match

EIN: 42-1688672 | 25 grants awarded
$246,406
(≈ Similar)
$2,000
median grant
La Jolla, CA
Same state
100%
Excellent match

EIN: 45-5579746 | 54 grants awarded
$249,881
(≈ Similar)
$1,000
median grant
Los Altos, CA
Same state
100%
Excellent match

Contact Information

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

EIN 95-6048727
Website N/A
Address PO BOX 20204 Stanford, CA 94309-0000

Key People (3)

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

Secretary Flora Worley
President Ann Balliet
Secretary/treasurer Polly Diffenbaugh

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 Diffenbaugh 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 February 2026 based on IRS Form 990-PF filings. Foundation information reflects most recent available tax year data.