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Private foundations don’t post open calls, so nobody can search them. We read IRS filings instead — 9.6 million grants from 174,053 foundations and grantmaking charities, searchable by what the money was actually for.

12 funders with a record of paying for “mateo”

Where the money went

1.0×
Silicon Valley Community Foundation → County of San Mateo: $2.1M across 3 grants, latest 2024The Sobrato Family Foundation → County of San Mateo: $1.0M across 1 grant, latest 2024The San Francisco Foundation → Housing Leadership Council of San Mateo County: $750K across 4 grants, latest 2024The Grove Foundation → Legal Aid Society of San Mateo Co: $478K across 3 grants, latest 2023Sunlight Giving → San Mateo County Health Foundation: $455K across 3 grants, latest 2024United Way of the Bay Area → San Mateo County Community College District: $338K across 3 grants, latest 2024Sand Hill Foundation → Renaissance Entrepreneurship Center: $225K across 3 grants, latest 2024Smcu Community Fund → San Mateo Foster City School District: $200K across 1 grant, latest 2022Atkinson Foundation → El Concilio of San Mateo County: $195K across 5 grants, latest 2024Woodlawn Foundation → Ombudsman Services of San Mateo County: $195K across 2 grants, latest 2024Kaiser Foundation Hospitals → County of San Mateo: $150K across 2 grants, latest 2024Danford Foundation → San Mateo Historical Association: $58K across 5 grants, latest 2024Silicon Valley Community Foundation → Housing Leadership Council of San Mateo County: $764K across 3 grants, latest 2024The San Francisco Foundation → Mujeres Unidas Y Activas: $527K across 1 grant, latest 2023The Sobrato Family Foundation → Renaissance Entrepreneurship Center: $500K across 2 grants, latest 2024Sunlight Giving → The Society of St Vincent De Paul Particular Council of San Mateo County: $295K across 4 grants, latest 2024The Grove Foundation → Housing Leadership Council of San Mateo County: $265K across 3 grants, latest 2023Sand Hill Foundation → San Mateo County Office of Education: $220K across 3 grants, latest 2024Smcu Community Fund → Boys & Girls Clubs of North San Mateo County: $197K across 1 grant, latest 2022Woodlawn Foundation → Casa of San Mateo County: $185K across 4 grants, latest 2025United Way of the Bay Area → San Mateo County Ccd - College of San Mateo: $183K across 3 grants, latest 2024Atkinson Foundation → Multicultural Institute: $75K across 1 grant, latest 2024Kaiser Foundation Hospitals → South County Community Health Center Inc: $70K across 1 grant, latest 2024Danford Foundation → Service League of San Mateo County: $15K across 3 grants, latest 2022Silicon Valley Community Foundation → El Concilio of San Mateo County: $628K across 3 grants, latest 2024The San Francisco Foundation → Community Initiatives: $467K across 1 grant, latest 2023The Sobrato Family Foundation → Onegoal: $338K across 1 grant, latest 2023Sunlight Giving → Legal Aid Society of San Mateo County: $270K across 6 grants, latest 2024The Grove Foundation → Silicon Valley Community Foundation: $250K across 2 grants, latest 2023Sand Hill Foundation → Legal Aid Society of San Mateo County: $150K across 2 grants, latest 2024United Way of the Bay Area → San Mateo County Ccd - Canada College: $105K across 3 grants, latest 2024Smcu Community Fund → City of San Mateo: $94K across 1 grant, latest 2022Woodlawn Foundation → San Mateo-Foster City Community Education Foundation: $75K across 3 grants, latest 2025Kaiser Foundation Hospitals → El Concilio of San Mateo County: $70K across 3 grants, latest 2024Atkinson Foundation → Fresh Lifelines for Youth Inc: $53K across 4 grants, latest 2024Danford Foundation → Casa of San Mateo County: $11K across 3 grants, latest 2022Silicon Valley Community Foundation → Child Care Coordinating Council of San Mateo County Inc: $464K across 3 grants, latest 2024The Sobrato Family Foundation → Legal Aid Society of San Mateo County: $331K across 3 grants, latest 2024The Sobrato Family Foundation → Centro Community Partners: $300K across 2 grants, latest 2024The Sobrato Family Foundation → Peninsula Conflict Resolution Center: $297K across 3 grants, latest 2023Silicon Valley Community Foundation → Casa of San Mateo County: $289K across 3 grants, latest 2024Silicon Valley Community Foundation → Foundation for San Mateo County Libraries: $251K across 2 grants, latest 2024The San Francisco Foundation → Faith in Action Bay Area: $250K across 1 grant, latest 2021The Sobrato Family Foundation → Society of St Vincent De Paul Particular Council of San Mateo County: $250K across 3 grants, latest 2024The San Francisco Foundation → World Central Kitchen: $242K across 1 grant, latest 2023The Sobrato Family Foundation → Start Small Think Big Inc: $225K across 1 grant, latest 2022The Grove Foundation → Faith in Action Bay Area: $225K across 2 grants, latest 2023The Grove Foundation → San Mateo County Community College District: $200K across 1 grant, latest 2022The Sobrato Family Foundation → Local Initiatives Support Corp: $200K across 2 grants, latest 2023Silicon Valley Community Foundation → San Mateo County Human Services Agency: $200K across 1 grant, latest 2023The San Francisco Foundation → East Bay Community Foundation: $188K across 1 grant, latest 2023Silicon Valley Community Foundation → Leadership Council San Mateo County: $180K across 2 grants, latest 2023Sunlight Giving → Martha's Kitchen: $180K across 5 grants, latest 2024Silicon Valley Community Foundation → Society of St Vincent De Paul of San Mateo County: $178K across 2 grants, latest 2024The Sobrato Family Foundation → Juma Ventures: $175K across 1 grant, latest 2024Silicon Valley Community Foundation → Legal Aid Society of San Mateo Co: $169K across 3 grants, latest 2024The Sobrato Family Foundation → Casa of San Mateo County: $166K across 3 grants, latest 2024The Sobrato Family Foundation → Human Investment Project: $165K across 1 grant, latest 2022The Sobrato Family Foundation → Human Investment Project Inc: $165K across 1 grant, latest 2023The Sobrato Family Foundation → Samaritan House: $163K across 1 grant, latest 2024The Sobrato Family Foundation → Goodwill Industries of San Francisco San Mateo & Marin Counties: $150K across 1 grant, latest 2023Sunlight Giving → Child Care Coordinating Council of San Mateo County Inc: $150K across 3 grants, latest 2024Sand Hill Foundation → Peninsula Conflict Resolution Center: $150K across 2 grants, latest 2024The San Francisco Foundation → Nuestra Casa De East Palo Alto: $150K across 1 grant, latest 2021Silicon Valley Community Foundation: $5.3M on this topic. Open the funder.Silicon Valley Community Foun…$5.3MThe Sobrato Family Foundation: $4.4M on this topic. Open the funder.The Sobrato Family Foundation$4.4MThe San Francisco Foundation: $2.6M on this topic. Open the funder.The San Francisco Foundation$2.6MThe Grove Foundation: $1.4M on this topic. Open the funder.The Grove Foundation$1.4MSunlight Giving: $1.4M on this topic. Open the funder.Sunlight Giving$1.4MSand Hill Foundation: $745K on this topic. Open the funder.Sand Hill Foundation$745KUnited Way of the Bay Area: $626K on this topic. Open the funder.United Way of the Bay Area$626KSmcu Community Fund: $490K on this topic. Open the funder.Smcu Community Fund$490KWoodlawn Foundation: $455K on this topic. Open the funder.Woodlawn Foundation$455KAtkinson Foundation: $323K on this topic. Open the funder.Atkinson Foundation$323KKaiser Foundation Hospitals: $290K on this topic. Open the funder.Kaiser Foundation Hospitals$290KDanford Foundation: $84K on this topic. Open the funder.Danford Foundation$84KCounty of San Mateo: received $2.1M on this topicCounty of San Mateo$2.1MHousing Leadership Council of San Mateo County: received $1.0M on this topicHousing Leadership Council of S…$1.0MCounty of San Mateo: received $1.0M on this topicCounty of San Mateo$1.0MHousing Leadership Council of San Mateo County: received $764K on this topicHousing Leadership Council of S…$764KLegal Aid Society of San Mateo County: received $751K on this topicLegal Aid Society of San Mateo…$751KRenaissance Entrepreneurship Center: received $725K on this topicRenaissance Entrepreneurship Ce…$725KEl Concilio of San Mateo County: received $628K on this topicEl Concilio of San Mateo County$628KSan Mateo County Community College District: received $538K on this topicSan Mateo County Community Coll…$538KMujeres Unidas Y Activas: received $527K on this topicMujeres Unidas Y Activas$527KLegal Aid Society of San Mateo Co: received $478K on this topicLegal Aid Society of San Mateo…$478KFaith in Action Bay Area: received $475K on this topicFaith in Action Bay Area$475KCommunity Initiatives: received $467K on this topicCommunity Initiatives$467KChild Care Coordinating Council of San Mateo County Inc: received $464K on this topicChild Care Coordinating Council…$464KSan Mateo County Health Foundation: received $455K on this topicSan Mateo County Health Foundat…$455KPeninsula Conflict Resolution Center: received $447K on this topicPeninsula Conflict Resolution C…$447KCasa of San Mateo County: received $361K on this topicCasa of San Mateo County$361KOnegoal: received $338K on this topicOnegoal$338KCentro Community Partners: received $300K on this topicCentro Community Partners$300KThe Society of St Vincent De Paul Particular Council of San Mateo County: received $295K on this topicThe Society of St Vincent De Pa…$295KCasa of San Mateo County: received $289K on this topicCasa of San Mateo County$289KFoundation for San Mateo County Libraries: received $251K on this topicFoundation for San Mateo County…$251KSilicon Valley Community Foundation: received $250K on this topicSilicon Valley Community Founda…$250KSociety of St Vincent De Paul Particular Council of San Mateo County: received $250K on this topicSociety of St Vincent De Paul P…$250KWorld Central Kitchen: received $242K on this topicWorld Central Kitchen$242KStart Small Think Big Inc: received $225K on this topicStart Small Think Big Inc$225KSan Mateo County Office of Education: received $220K on this topicSan Mateo County Office of Educ…$220KSan Mateo Foster City School District: received $200K on this topicSan Mateo Foster City School Di…$200KLocal Initiatives Support Corp: received $200K on this topicLocal Initiatives Support Corp$200KSan Mateo County Human Services Agency: received $200K on this topicSan Mateo County Human Services…$200KBoys & Girls Clubs of North San Mateo County: received $197K on this topicBoys & Girls Clubs of North San…$197KEl Concilio of San Mateo County: received $195K on this topicEl Concilio of San Mateo County$195KOmbudsman Services of San Mateo County: received $195K on this topicOmbudsman Services of San Mateo…$195KEast Bay Community Foundation: received $188K on this topicEast Bay Community Foundation$188KSan Mateo County Ccd - College of San Mateo: received $183K on this topicSan Mateo County Ccd - College…$183KLeadership Council San Mateo County: received $180K on this topicLeadership Council San Mateo Co…$180KMartha's Kitchen: received $180K on this topicMartha's Kitchen$180KSociety of St Vincent De Paul of San Mateo County: received $178K on this topicSociety of St Vincent De Paul o…$178KJuma Ventures: received $175K on this topicJuma Ventures$175KLegal Aid Society of San Mateo Co: received $169K on this topicLegal Aid Society of San Mateo…$169KHuman Investment Project: received $165K on this topicHuman Investment Project$165KHuman Investment Project Inc: received $165K on this topicHuman Investment Project Inc$165KSamaritan House: received $163K on this topicSamaritan House$163KCounty of San Mateo: received $150K on this topicCounty of San Mateo$150KGoodwill Industries of San Francisco San Mateo & Marin Counties: received $150K on this topicGoodwill Industries of San Fran…$150KChild Care Coordinating Council of San Mateo County Inc: received $150K on this topicChild Care Coordinating Council…$150KNuestra Casa De East Palo Alto: received $150K on this topicNuestra Casa De East Palo Alto$150KSan Mateo County Ccd - Canada College: received $105K on this topicSan Mateo County Ccd - Canada C…$105KCity of San Mateo: received $94K on this topicCity of San Mateo$94KMulticultural Institute: received $75K on this topicMulticultural Institute$75KSan Mateo-Foster City Community Education Foundation: received $75K on this topicSan Mateo-Foster City Community…$75KSouth County Community Health Center Inc: received $70K on this topicSouth County Community Health C…$70KEl Concilio of San Mateo County: received $70K on this topicEl Concilio of San Mateo County$70KSan Mateo Historical Association: received $58K on this topicSan Mateo Historical Association$58KFresh Lifelines for Youth Inc: received $53K on this topicFresh Lifelines for Youth Inc$53KService League of San Mateo County: received $15K on this topicService League of San Mateo Cou…$15K
12 funders, 55 recipients, grants matching “mateo” only. Ribbon width is proportional to the total given; each funder has its own colour (smaller funders in gray). Hover a name to isolate its flows, click a funder to open it. Drag to move around; zoom with the buttons, a double-click, or the wheel after clicking the map.

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Source: IRS Form 990-PF Part XV and Form 990 Schedule I, tax years 2019–2025. These are grants already paid, a record of what an organization funds rather than an open call. Private foundations rarely accept unsolicited applications and the route in is usually a program officer; grantmaking charities and associations more often run real application cycles, so check their website. How this data is built, and its limits →