Grants paid by The Michael and Sally Mayer Family Foundation
EIN 20-3874924 · Hillsborough, CA · Form 990-PF, Part XV · NTEE T20
The Michael and Sally Mayer Family Foundation of Hillsborough, CA (EIN 20-3874924) reported 85 grants paid totaling $461,951 to 47 recipients in tax years 2020–2024, on Form 990-PF, Part XV. Derived from IRS e-file data, dataset version 2026.09.0, built 2026-09-03.
Grants paid
$461,951
85 grants
Recipients
47
distinct organizations
Tax years
2020–2024
5 filings in the corpus
By tax year
| Tax year | Grants paid | Amount paid | Approved for future |
|---|---|---|---|
| 2020 | 19 | $113,998 | — |
| 2021 | 20 | $115,550 | — |
| 2022 | 20 | $102,270 | — |
| 2023 | 13 | $57,423 | — |
| 2024 | 13 | $72,710 | — |
Top recipients
The 47 recipients receiving the most from The Michael and Sally Mayer Family Foundation, by grants paid, out of 47 distinct recipients.
| Recipient | Match | Location | Grants | Total paid | Latest year |
|---|---|---|---|---|---|
| Archbishop Riordan High School | U | San Francisco, CA | 5 | $91,650 | 2024 |
| Nami 46-1028709 | D | San Jose, CA | 3 | $57,735 | 2024 |
| San Mateo Pal | U | San Mateo, CA | 5 | $47,000 | 2024 |
| Family Connections 94-3213689 | D | Menlo Park, CA | 4 | $38,500 | 2024 |
| Service League Hope House | U | Redwood City, CA | 4 | $37,437 | 2023 |
| Cal Club House | U | San Carlos, CA | 3 | $26,583 | 2022 |
| First Presbyterian Church of Burlingame 94-1207714 | B | Burlingame, CA | 4 | $21,397 | 2024 |
| Amor 99-2478420 | C | San Diego, CA | 3 | $15,200 | 2022 |
| San Mateo Service League Hope House | U | Redwood City, CA | 1 | $15,000 | 2024 |
| Las Lomitas | U | Menlo Park, CA | 2 | $12,000 | 2021 |
| Jazz at the Ballroom 81-5132247 | B | Burlingame, CA | 1 | $10,000 | 2022 |
| Lymelight 61-1645660 | D | Burlingame, CA | 4 | $9,500 | 2024 |
| San Mateo County Parks 94-1638934 | C | Redwood City, CA | 1 | $8,500 | 2021 |
| Cora | U | San Mateo, CA | 3 | $8,000 | 2022 |
| Ll Foundation | U | Sherman Oaks Ca, CA | 1 | $6,000 | 2023 |
| Heart for Humanity 99-3195908 | C | Novato, CA | 1 | $6,000 | 2024 |
| Rose City Park School 85-2413611 | D | Portland, OR | 1 | $5,110 | 2023 |
| Central Office | U | Campbell, CA | 2 | $5,040 | 2021 |
| Serra Hs | U | San Mateo, CA | 1 | $5,000 | 2024 |
| Sojourn Project | U | Millbrae, CA | 1 | $5,000 | 2021 |
| Uc San Diego | U | La Jolla, CA | 1 | $5,000 | 2024 |
| Fund for Portland Public Schools | U | Portland, OR | 1 | $5,000 | 2024 |
| Food Runners | U | San Francisco, CA | 1 | $2,500 | 2020 |
| Filoli | U | Woodside, CA | 3 | $2,334 | 2023 |
| Bok Ranch | U | Woodside, CA | 2 | $2,000 | 2024 |
| New Life Community Church | U | Burlingame, CA | 3 | $1,695 | 2022 |
| Solmateo San Mateo | U | Burlingame, CA | 1 | $1,405 | 2023 |
| San Mateo Fellowship 94-1599460 | D | San Mateo, CA | 2 | $1,202 | 2023 |
| The Urban Paw | U | San Francisco, CA | 1 | $1,200 | 2023 |
| Pets in Need 94-6139667 | B | Redwood City, CA | 1 | $1,000 | 2022 |
| Pomeroy Center | U | San Francisco, CA | 1 | $1,000 | 2020 |
| Caritas Creek 51-0181415 | B | Occidental, CA | 1 | $1,000 | 2023 |
| Peninsula Open Space Trust 94-2392007 | B | Palo Alto, CA | 1 | $1,000 | 2021 |
| Consumer Reports 13-1776434 | B | Yonkers, NY | 3 | $816 | 2022 |
| Peninsula Humane Socitey | U | Burlingame, CA | 1 | $500 | 2021 |
| Hip Housing | U | Redwood City, CA | 1 | $500 | 2023 |
| Hillsdale College | U | Hillsdale, MI | 1 | $500 | 2020 |
| Sing for America 45-3148868 | C | San Francisco, CA | 1 | $500 | 2023 |
| Mills-Peninsula Hospital 23-7288765 | D | Burlingame, CA | 1 | $500 | 2022 |
| Girls Best Friend Rescue | U | El Sobrtante, CA | 1 | $500 | 2020 |
| Fine Arts Museum of Sf 94-6096509 | C | San Francisco, CA | 1 | $299 | 2022 |
| Hiller Aviation Museum 94-3226411 | D | San Carlos, CA | 1 | $275 | 2021 |
| Sand Hill School 95-2462254 | D | Palo Alto, CA | 1 | $200 | 2020 |
| Alcoholics Anonymous 30-1467976 | C | San Mateo, CA | 1 | $143 | 2022 |
| Vannoy Parent Club 94-3104988 | B | Castro Valley, CA | 1 | $120 | 2021 |
| San Mateo Fellowship | U | San Mateo, NY | 1 | $85 | 2024 |
| Bay Area Ballers Youth Foundation 30-0515764 | B | Redwood City, CA | 1 | $25 | 2022 |
Match tier: A Reported EIN · B Exact name and place · C Strong name match · D Probable name match · U Unresolved. Tiers C and D are inferred, not reported; see how matching works.
Every grant
All 85 grant rows this organization reported, most recent first.
| Tax year | Recipient | Match | Amount | Type | Purpose | Source filing |
|---|---|---|---|---|---|---|
| 2024 | San Mateo Service League Hope House Redwood City, CA | U | $15,000 | paid | GENERAL OPERATING EXPENSES | 202501339349103110 |
| 2024 | San Mateo Pal San Mateo, CA | U | $9,800 | paid | GENERAL OPERATING EXPENSES | 202501339349103110 |
| 2024 | Family Connections Menlo Park, CA | D | $7,500 | paid | GENERAL OPERATING EXPENSES | 202501339349103110 |
| 2024 | Nami San Jose, CA | D | $7,500 | paid | GENERAL OPERATING EXPENSES | 202501339349103110 |
| 2024 | Heart for Humanity Novato, CA | C | $6,000 | paid | GENERAL OPERATING EXPENSES | 202501339349103110 |
| 2024 | Fund for Portland Public Schools Portland, OR | U | $5,000 | paid | GENERAL OPERATING EXPENSES | 202501339349103110 |
| 2024 | Uc San Diego La Jolla, CA | U | $5,000 | paid | GENERAL OPERATING EXPENSES | 202501339349103110 |
| 2024 | Serra Hs San Mateo, CA | U | $5,000 | paid | GENERAL OPERATING EXPENSES | 202501339349103110 |
| 2024 | Lymelight Burlingame, CA | D | $5,000 | paid | GENERAL OPERATING EXPENSES | 202501339349103110 |
| 2024 | Archbishop Riordan High School San Francisco, CA | U | $4,500 | paid | GENERAL OPERATING EXPENSES | 202501339349103110 |
| 2024 | First Presbyterian Church of Burlingame Burlingame, CA | B | $1,325 | paid | GENERAL OPERATING EXPENSES | 202501339349103110 |
| 2024 | Bok Ranch Woodside, CA | U | $1,000 | paid | GENERAL OPERATING EXPENSES | 202501339349103110 |
| 2024 | San Mateo Fellowship San Mateo, NY | U | $85 | paid | GENERAL OPERATING EXPENSES | 202501339349103110 |
| 2023 | San Mateo Pal San Mateo, CA | U | $21,550 | paid | GENERAL OPERATING EXPENSES | 202442289349100804 |
| 2023 | Service League Hope House Redwood City, CA | U | $16,778 | paid | GENERAL OPERATING EXPENSES | 202442289349100804 |
| 2023 | Ll Foundation Sherman Oaks Ca, CA | U | $6,000 | paid | GENERAL OPERATING EXPENSES | 202442289349100804 |
| 2023 | Rose City Park School Portland, OR | D | $5,110 | paid | GENERAL OPERATING EXPENSES | 202442289349100804 |
| 2023 | Solmateo San Mateo Burlingame, CA | U | $1,405 | paid | GENERAL OPERATING EXPENSES | 202442289349100804 |
| 2023 | The Urban Paw San Francisco, CA | U | $1,200 | paid | GENERAL OPERATING EXPENSES | 202442289349100804 |
| 2023 | San Mateo Fellowship San Mateo, CA | D | $1,146 | paid | GENERAL OPERATING EXPENSES | 202442289349100804 |
| 2023 | Bok Ranch Woodside, CA | U | $1,000 | paid | GENERAL OPERATING EXPENSES | 202442289349100804 |
| 2023 | Archbishop Riordan High School San Francisco, CA | U | $1,000 | paid | GENERAL OPERATING EXPENSES | 202442289349100804 |
| 2023 | Caritas Creek Occidental, CA | B | $1,000 | paid | GENERAL OPERATING EXPENSES | 202442289349100804 |
| 2023 | Sing for America San Francisco, CA | C | $500 | paid | GENERAL OPERATING EXPENSES | 202442289349100804 |
| 2023 | Hip Housing Redwood City, CA | U | $500 | paid | GENERAL OPERATING EXPENSES | 202442289349100804 |
| 2023 | Filoli Woodside, CA | U | $234 | paid | GENERAL OPERATING EXPENSES | 202442289349100804 |
| 2022 | Nami San Jose, CA | D | $20,235 | paid | GENERAL OPERATING EXPENSES | 202321869349100727 |
| 2022 | First Presbyterian Church of Burlingame Burlingame, CA | B | $12,500 | paid | GENERAL OPERATING EXPENSES | 202321869349100727 |
| 2022 | San Mateo Pal San Mateo, CA | U | $11,650 | paid | GENERAL OPERATING EXPENSES | 202321869349100727 |
| 2022 | Archbishop Riordan High School San Francisco, CA | U | $10,800 | paid | GENERAL OPERATING EXPENSES | 202321869349100727 |
| 2022 | Cal Club House San Carlos, CA | U | $10,000 | paid | GENERAL OPERATING EXPENSES | 202321869349100727 |
| 2022 | Jazz at the Ballroom Burlingame, CA | B | $10,000 | paid | GENERAL OPERATING EXPENSES | 202321869349100727 |
| 2022 | Amor San Diego, CA | C | $10,000 | paid | GENERAL OPERATING EXPENSES | 202321869349100727 |
| 2022 | Family Connections Menlo Park, CA | D | $7,500 | paid | GENERAL OPERATING EXPENSES | 202321869349100727 |
| 2022 | Service League Hope House Redwood City, CA | U | $2,931 | paid | GENERAL OPERATING EXPENSES | 202321869349100727 |
| 2022 | Lymelight Burlingame, CA | D | $1,500 | paid | GENERAL OPERATING EXPENSES | 202321869349100727 |
| 2022 | Pets in Need Redwood City, CA | B | $1,000 | paid | GENERAL OPERATING EXPENSES | 202321869349100727 |
| 2022 | Filoli Woodside, CA | U | $1,000 | paid | GENERAL OPERATING EXPENSES | 202321869349100727 |
| 2022 | Cora San Mateo, CA | U | $1,000 | paid | GENERAL OPERATING EXPENSES | 202321869349100727 |
| 2022 | New Life Community Church Burlingame, CA | U | $795 | paid | GENERAL OPERATING EXPENSES | 202321869349100727 |
| 2022 | Mills-Peninsula Hospital Burlingame, CA | D | $500 | paid | GENERAL OPERATING EXPENSES | 202321869349100727 |
| 2022 | Consumer Reports Yonkers, NY | B | $336 | paid | GENERAL OPERATING EXPENSES | 202321869349100727 |
| 2022 | Fine Arts Museum of Sf San Francisco, CA | C | $299 | paid | GENERAL OPERATING EXPENSES | 202321869349100727 |
| 2022 | Alcoholics Anonymous San Mateo, CA | C | $143 | paid | GENERAL OPERATING EXPENSES | 202321869349100727 |
| 2022 | San Mateo Fellowship San Mateo, CA | D | $56 | paid | GENERAL OPERATING EXPENSES | 202321869349100727 |
| 2022 | Bay Area Ballers Youth Foundation Redwood City, CA | B | $25 | paid | GENERAL OPERATING EXPENSES | 202321869349100727 |
| 2021 | Archbishop Riordan High School San Francisco, CA | U | $47,850 | paid | GENERAL OPERATING EXPENSES | 202201329349103115 |
| 2021 | Nami San Jose, CA | D | $30,000 | paid | GENERAL OPERATING EXPENSES | 202201329349103115 |
| 2021 | San Mateo County Parks Redwood City, CA | C | $8,500 | paid | GENERAL OPERATING EXPENSES | 202201329349103115 |
| 2021 | Sojourn Project Millbrae, CA | U | $5,000 | paid | GENERAL OPERATING EXPENSES | 202201329349103115 |
| 2021 | Cora San Mateo, CA | U | $5,000 | paid | GENERAL OPERATING EXPENSES | 202201329349103115 |
| 2021 | Family Connections Menlo Park, CA | D | $5,000 | paid | GENERAL OPERATING EXPENSES | 202201329349103115 |
| 2021 | Las Lomitas Menlo Park, CA | U | $4,000 | paid | GENERAL OPERATING EXPENSES | 202201329349103115 |
| 2021 | Service League Hope House Redwood City, CA | U | $2,728 | paid | GENERAL OPERATING EXPENSES | 202201329349103115 |
| 2021 | First Presbyterian Church of Burlingame Burlingame, CA | B | $1,500 | paid | GENERAL OPERATING EXPENSES | 202201329349103115 |
| 2021 | Lymelight Burlingame, CA | D | $1,500 | paid | GENERAL OPERATING EXPENSES | 202201329349103115 |
| 2021 | Peninsula Open Space Trust Palo Alto, CA | B | $1,000 | paid | GENERAL OPERATING EXPENSES | 202201329349103115 |
| 2021 | San Mateo Pal San Mateo, CA | U | $1,000 | paid | GENERAL OPERATING EXPENSES | 202201329349103115 |
| 2021 | New Life Community Church Burlingame, CA | U | $675 | paid | GENERAL OPERATING EXPENSES | 202201329349103115 |
| 2021 | Peninsula Humane Socitey Burlingame, CA | U | $500 | paid | GENERAL OPERATING EXPENSES | 202201329349103115 |
| 2021 | Cal Club House San Carlos, CA | U | $382 | paid | GENERAL OPERATING EXPENSES | 202201329349103115 |
| 2021 | Consumer Reports Yonkers, NY | B | $280 | paid | GENERAL OPERATING EXPENSES | 202201329349103115 |
| 2021 | Hiller Aviation Museum San Carlos, CA | D | $275 | paid | GENERAL OPERATING EXPENSES | 202201329349103115 |
| 2021 | Amor San Diego, CA | C | $200 | paid | GENERAL OPERATING EXPENSES | 202201329349103115 |
| 2021 | Vannoy Parent Club Castro Valley, CA | B | $120 | paid | GENERAL OPERATING EXPENSES | 202201329349103115 |
| 2021 | Central Office Campbell, CA | U | $40 | paid | GENERAL OPERATING EXPENSES | 202201329349103115 |
| 2020 | Archbishop Riordan High School San Francisco, CA | U | $27,500 | paid | GENERAL OPERATING EXPENSES | 202113579349100416 |
| 2020 | Family Connections Menlo Park, CA | D | $18,500 | paid | GENERAL OPERATING EXPENSES | 202113579349100416 |
| 2020 | Cal Club House San Carlos, CA | U | $16,201 | paid | GENERAL OPERATING EXPENSES | 202113579349100416 |
| 2020 | Service League Hope House Redwood City, CA | U | $15,000 | paid | GENERAL OPERATING EXPENSES | 202113579349100416 |
| 2020 | Las Lomitas Menlo Park, CA | U | $8,000 | paid | GENERAL OPERATING EXPENSES | 202113579349100416 |
| 2020 | First Presbyterian Church of Burlingame Burlingame, CA | B | $6,072 | paid | GENERAL OPERATING EXPENSES | 202113579349100416 |
| 2020 | Amor San Diego, CA | C | $5,000 | paid | GENERAL OPERATING EXPENSES | 202113579349100416 |
| 2020 | Central Office Campbell, CA | U | $5,000 | paid | GENERAL OPERATING EXPENSES | 202113579349100416 |
| 2020 | San Mateo Pal San Mateo, CA | U | $3,000 | paid | GENERAL OPERATING EXPENSES | 202113579349100416 |
| 2020 | Food Runners San Francisco, CA | U | $2,500 | paid | GENERAL OPERATING EXPENSES | 202113579349100416 |
| 2020 | Cora San Mateo, CA | U | $2,000 | paid | GENERAL OPERATING EXPENSES | 202113579349100416 |
| 2020 | Lymelight Burlingame, CA | D | $1,500 | paid | GENERAL OPERATING EXPENSES | 202113579349100416 |
| 2020 | Filoli Woodside, CA | U | $1,100 | paid | GENERAL OPERATING EXPENSES | 202113579349100416 |
| 2020 | Pomeroy Center San Francisco, CA | U | $1,000 | paid | GENERAL OPERATING EXPENSES | 202113579349100416 |
| 2020 | Hillsdale College Hillsdale, MI | U | $500 | paid | GENERAL OPERATING EXPENSES | 202113579349100416 |
| 2020 | Girls Best Friend Rescue El Sobrtante, CA | U | $500 | paid | GENERAL OPERATING EXPENSES | 202113579349100416 |
| 2020 | New Life Community Church Burlingame, CA | U | $225 | paid | GENERAL OPERATING EXPENSES | 202113579349100416 |
| 2020 | Consumer Reports Yonkers, NY | B | $200 | paid | GENERAL OPERATING EXPENSES | 202113579349100416 |
| 2020 | Sand Hill School Palo Alto, CA | D | $200 | paid | GENERAL OPERATING EXPENSES | 202113579349100416 |
Match tier: A Reported EIN · B Exact name and place · C Strong name match · D Probable name match · U Unresolved. Tiers C and D are inferred, not reported; see how matching works.
Recipient matching for this dataset version has not yet completed its independent precision check. Tier A rows carry the EIN the filer reported; tiers B–D are the matcher's inference and should be read as leads until the check is published on the methodology page.
Source filings
Every figure above is traceable to one of these IRS e-file returns by its OBJECT_ID.
| Form | Tax year | Period end | Filed | Schema | IRS OBJECT_ID |
|---|---|---|---|---|---|
| 990PF | 2024 | 2024-12-31 | not stated | 2024v5.1 | 202501339349103110 |
| 990PF | 2023 | 2023-12-31 | not stated | 2023v5.1 | 202442289349100804 |
| 990PF | 2022 | 2022-12-31 | not stated | 2022v5.0 | 202321869349100727 |
| 990PF | 2021 | 2021-12-31 | not stated | 2021v4.2 | 202201329349103115 |
| 990PF | 2020 | 2020-12-31 | not stated | 2020v4.1 | 202113579349100416 |
Derived from IRS Form 990-PF e-file XML; recipient identities from the IRS Exempt Organizations Business Master File. Dataset version 2026.09.0, built 2026-09-03. The same rows as Parquet: manifest; as JSON: /api/funders/203874924.json.
The same organization elsewhere in the program: exempt status and filing health · federal awards · grant guidance · open opportunities.
This is informational only, derived from public data on the dates shown. It is not an eligibility determination, and not legal, tax, or accounting advice. Verify against the official source before relying on it.