The Michael And Sally Mayer | Foundation Profile

GrantBay analyzes IRS Form 990-PF data to help grant seekers find fit funders like The Michael And Sally Mayer. Data shown is extracted from Form 990-PF filings.

EIN: 20-3874924

Foundation Overview

Based in Hillsborough, CA, The Michael And Sally Mayer has awarded 125 grants totaling $651,204 to organizations in California, New York and 2 other states across the US. Individual grants range from $25 to $47,850, with a median award of $1,200.

Latest Tax Year
2023
Total Giving (all years)
$651,204
Total Assets
$1,099,657
Median Grant (all grants)
$1,200

Latest Form 990-PF Snapshot

Total Grants
26
Median Grant
$1,146
% Median Grant Decline
-8% (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
Growth-Minded: 62%

16 of 26 recipients (62%) were new grantees. Foundation actively seeks new partnerships to expand impact. Fresh approaches and innovative programs receive serious consideration.

Geographic Focus
California

94% 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 Burlingame (21%), San Mateo (17%), San Francisco (14%).

Funding Trajectory
-50%

Declining funding trend with 50% decrease over 3 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 The Michael And Sally Mayer'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
Archbishop Riordan High School $1,000 San Francisco, CA, US General Operating Expenses 2023
Bok Ranch $1,000 Woodside, CA, US General Operating Expenses 2023
Caritas Creek $1,000 Occidental, CA, US General Operating Expenses 2023
Filoli $234 Woodside, CA, US General Operating Expenses 2023
Hip Housing $500 Redwood City, CA, US General Operating Expenses 2023
Ll Foundation $6,000 Sherman Oaks Ca, CA, US General Operating Expenses 2023
Rose City Park School $5,110 Portland, OR, US General Operating Expenses 2023
San Mateo Fellowship $1,146 San Mateo, CA, US General Operating Expenses 2023
San Mateo Pal $21,550 San Mateo, CA, US General Operating Expenses 2023
Service League Hope House $16,778 Redwood City, CA, US General Operating Expenses 2023
Sing For America $500 San Francisco, CA, US General Operating Expenses 2023
Solmateo San Mateo $1,405 Burlingame, CA, US General Operating Expenses 2023
The Urban Paw $1,200 San Francisco, CA, US General Operating Expenses 2023
Archbishop Riordan High School $1,000 San Francisco, CA, US General Operating Expenses 2023
Bok Ranch $1,000 Woodside, CA, US General Operating Expenses 2023
Caritas Creek $1,000 Occidental, CA, US General Operating Expenses 2023
Filoli $234 Woodside, CA, US General Operating Expenses 2023
Hip Housing $500 Redwood City, CA, US General Operating Expenses 2023
Ll Foundation $6,000 Sherman Oaks Ca, CA, US General Operating Expenses 2023
Rose City Park School $5,110 Portland, OR, US General Operating Expenses 2023
San Mateo Fellowship $1,146 San Mateo, CA, US General Operating Expenses 2023
San Mateo Pal $21,550 San Mateo, CA, US General Operating Expenses 2023
Service League Hope House $16,778 Redwood City, CA, US General Operating Expenses 2023
Sing For America $500 San Francisco, CA, US General Operating Expenses 2023
Solmateo San Mateo $1,405 Burlingame, CA, US General Operating Expenses 2023
The Urban Paw $1,200 San Francisco, CA, US General Operating Expenses 2023
Alcoholics Anonymous $143 San Mateo, CA, US General Operating Expenses 2022
Amor $10,000 San Diego, CA, US General Operating Expenses 2022
Archbishop Riordan High School $10,800 San Francisco, CA, US General Operating Expenses 2022
Bay Area Ballers Youth Foundation $25 Redwood City, CA, US General Operating Expenses 2022
Cal Club House $10,000 San Carlos, CA, US General Operating Expenses 2022
Consumer Reports $336 Yonkers, NY, US General Operating Expenses 2022
Cora $1,000 San Mateo, CA, US General Operating Expenses 2022
Family Connections $7,500 Menlo Park, CA, US General Operating Expenses 2022
Filoli $1,000 Woodside, CA, US General Operating Expenses 2022
Fine Arts Museum Of Sf $299 San Francisco, CA, US General Operating Expenses 2022
First Presbyterian Church Of Burlingame $12,500 Burlingame, CA, US General Operating Expenses 2022
Jazz At The Ballroom $10,000 Burlingame, CA, US General Operating Expenses 2022
Lymelight $1,500 Burlingame, CA, US General Operating Expenses 2022
Mills-peninsula Hospital $500 Burlingame, CA, US General Operating Expenses 2022
Nami $20,235 San Jose, CA, US General Operating Expenses 2022
New Life Community Church $795 Burlingame, CA, US General Operating Expenses 2022
Pets In Need $1,000 Redwood City, CA, US General Operating Expenses 2022
San Mateo Fellowship $56 San Mateo, CA, US General Operating Expenses 2022
San Mateo Pal $11,650 San Mateo, CA, US General Operating Expenses 2022
Service League Hope House $2,931 Redwood City, CA, US General Operating Expenses 2022
Alcoholics Anonymous $143 San Mateo, CA, US General Operating Expenses 2022
Amor $10,000 San Diego, CA, US General Operating Expenses 2022
Archbishop Riordan High School $10,800 San Francisco, CA, US General Operating Expenses 2022
Bay Area Ballers Youth Foundation $25 Redwood City, CA, US General Operating Expenses 2022
Cal Club House $10,000 San Carlos, CA, US General Operating Expenses 2022
Consumer Reports $336 Yonkers, NY, US General Operating Expenses 2022
Cora $1,000 San Mateo, CA, US General Operating Expenses 2022
Family Connections $7,500 Menlo Park, CA, US General Operating Expenses 2022
Filoli $1,000 Woodside, CA, US General Operating Expenses 2022
Fine Arts Museum Of Sf $299 San Francisco, CA, US General Operating Expenses 2022
First Presbyterian Church Of Burlingame $12,500 Burlingame, CA, US General Operating Expenses 2022
Jazz At The Ballroom $10,000 Burlingame, CA, US General Operating Expenses 2022
Lymelight $1,500 Burlingame, CA, US General Operating Expenses 2022
Mills-peninsula Hospital $500 Burlingame, CA, US General Operating Expenses 2022
Nami $20,235 San Jose, CA, US General Operating Expenses 2022
New Life Community Church $795 Burlingame, CA, US General Operating Expenses 2022
Pets In Need $1,000 Redwood City, CA, US General Operating Expenses 2022
San Mateo Fellowship $56 San Mateo, CA, US General Operating Expenses 2022
San Mateo Pal $11,650 San Mateo, CA, US General Operating Expenses 2022
Service League Hope House $2,931 Redwood City, CA, US General Operating Expenses 2022
Alcoholics Anonymous $143 San Mateo, CA, US General Operating Expenses 2022
Amor $10,000 San Diego, CA, US General Operating Expenses 2022
Archbishop Riordan High School $10,800 San Francisco, CA, US General Operating Expenses 2022
Bay Area Ballers Youth Foundation $25 Redwood City, CA, US General Operating Expenses 2022
Cal Club House $10,000 San Carlos, CA, US General Operating Expenses 2022
Consumer Reports $336 Yonkers, NY, US General Operating Expenses 2022
Cora $1,000 San Mateo, CA, US General Operating Expenses 2022
Family Connections $7,500 Menlo Park, CA, US General Operating Expenses 2022
Filoli $1,000 Woodside, CA, US General Operating Expenses 2022
Fine Arts Museum Of Sf $299 San Francisco, CA, US General Operating Expenses 2022
First Presbyterian Church Of Burlingame $12,500 Burlingame, CA, US General Operating Expenses 2022
Jazz At The Ballroom $10,000 Burlingame, CA, US General Operating Expenses 2022
Lymelight $1,500 Burlingame, CA, US General Operating Expenses 2022
Mills-peninsula Hospital $500 Burlingame, CA, US General Operating Expenses 2022
Nami $20,235 San Jose, CA, US General Operating Expenses 2022
New Life Community Church $795 Burlingame, CA, US General Operating Expenses 2022
Pets In Need $1,000 Redwood City, CA, US General Operating Expenses 2022
San Mateo Fellowship $56 San Mateo, CA, US General Operating Expenses 2022
San Mateo Pal $11,650 San Mateo, CA, US General Operating Expenses 2022
Service League Hope House $2,931 Redwood City, CA, US General Operating Expenses 2022
Amor $200 San Diego, CA, US General Operating Expenses 2021
Archbishop Riordan High School $47,850 San Francisco, CA, US General Operating Expenses 2021
Cal Club House $382 San Carlos, CA, US General Operating Expenses 2021
Central Office $40 Campbell, CA, US General Operating Expenses 2021
Consumer Reports $280 Yonkers, NY, US General Operating Expenses 2021
Cora $5,000 San Mateo, CA, US General Operating Expenses 2021
Family Connections $5,000 Menlo Park, CA, US General Operating Expenses 2021
First Presbyterian Church Of Burlingame $1,500 Burlingame, CA, US General Operating Expenses 2021
Hiller Aviation Museum $275 San Carlos, CA, US General Operating Expenses 2021
Las Lomitas $4,000 Menlo Park, CA, US General Operating Expenses 2021
Lymelight $1,500 Burlingame, CA, US General Operating Expenses 2021
Nami $30,000 San Jose, CA, US General Operating Expenses 2021
New Life Community Church $675 Burlingame, CA, US General Operating Expenses 2021
Peninsula Humane Socitey $500 Burlingame, CA, US General Operating Expenses 2021
Peninsula Open Space Trust $1,000 Palo Alto, CA, US General Operating Expenses 2021
San Mateo County Parks $8,500 Redwood City, CA, US General Operating Expenses 2021
San Mateo Pal $1,000 San Mateo, CA, US General Operating Expenses 2021
Service League Hope House $2,728 Redwood City, CA, US General Operating Expenses 2021
Sojourn Project $5,000 Millbrae, CA, US General Operating Expenses 2021
Vannoy Parent Club $120 Castro Valley, CA, US General Operating Expenses 2021
Amor $5,000 San Diego, CA, US General Operating Expenses 2020
Archbishop Riordan High School $27,500 San Francisco, CA, US General Operating Expenses 2020
Cal Club House $16,201 San Carlos, CA, US General Operating Expenses 2020
Central Office $5,000 Campbell, CA, US General Operating Expenses 2020
Consumer Reports $200 Yonkers, NY, US General Operating Expenses 2020
Cora $2,000 San Mateo, CA, US General Operating Expenses 2020
Family Connections $18,500 Menlo Park, CA, US General Operating Expenses 2020
Filoli $1,100 Woodside, CA, US General Operating Expenses 2020
First Presbyterian Church Of Burlingame $6,072 Burlingame, CA, US General Operating Expenses 2020
Food Runners $2,500 San Francisco, CA, US General Operating Expenses 2020
Girls Best Friend Rescue $500 El Sobrtante, CA, US General Operating Expenses 2020
Hillsdale College $500 Hillsdale, MI, US General Operating Expenses 2020
Las Lomitas $8,000 Menlo Park, CA, US General Operating Expenses 2020
Lymelight $1,500 Burlingame, CA, US General Operating Expenses 2020
New Life Community Church $225 Burlingame, CA, US General Operating Expenses 2020
Pomeroy Center $1,000 San Francisco, CA, US General Operating Expenses 2020
San Mateo Pal $3,000 San Mateo, CA, US General Operating Expenses 2020
Sand Hill School $200 Palo Alto, CA, US General Operating Expenses 2020
Service League Hope House $15,000 Redwood City, CA, US General Operating Expenses 2020

Foundations Similar to The Michael And Sally Mayer

Discover 5 foundations with comparable assets ($1,096,457-$1,104,008), 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: 95-4454279 | 284 grants awarded
$1,100,146
(≈ Similar)
$1,000
median grant
Sacramento, CA
Same state
100%
Excellent match

EIN: 46-3106546 | 157 grants awarded
$1,098,758
(≈ Similar)
$1,250
median grant
Antioch, CA
Same state
100%
Excellent match

EIN: 01-0684612 | 155 grants awarded
$1,101,313
(≈ Similar)
$1,000
median grant
San Diego, CA
Same state
100%
Excellent match

EIN: 95-6063288 | 216 grants awarded
$1,096,457
(≈ Similar)
$1,000
median grant
Santa Barbara, CA
Same state
100%
Excellent match

EIN: 84-3547560 | 37 grants awarded
$1,104,008
(≈ Similar)
$1,250
median grant
Palo Alto, CA
Same state
100%
Excellent match

Contact Information

Official contact details for The Michael And Sally Mayer as registered with the IRS. These details are essential for grant applications, correspondence, and due diligence processes.

EIN 20-3874924
Website N/A
Address 565 EL CERRITO AVE Hillsborough, CA 94010-6821

Key People (7)

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

President Sally Mayer
Treasurer Michael Mayer
Secretary Rosemary-mayer Hintz
Director David Mayer
Director Stephen Mayer

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 The Michael And Sally Mayer 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.