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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 “katz”

Where the money went

1.0×
The Heinz Endowments → Pittsburgh Trust for Cultural Resources: $30M across 7 grants, latest 2024Benjamin and Mary Siddons Measey → Temple University Katz Sch of Medic: $2.6M across 6 grants, latest 2024Tyhko Family Foundation → Chaim and Dena Katz Family Fund: $940K across 3 grants, latest 2024Jewish Federation of South Palm → Katz Hillel Day School: $721K across 3 grants, latest 2023Stoneleign Foundation → Lewis Katz School of Medicine (Jessica Beard): $363K across 2 grants, latest 2022Borealis Philanthropy → Bari Katz Inc: $316K across 3 grants, latest 2024The Carol and James Collins Foundation → Collins & Katz Family YMCA: $183K across 5 grants, latest 2025Katz Foundation → Marjorie and Lewis Katz Jcc: $143K across 2 grants, latest 2025Leonard and Sandra Jacob Foundation → Temple University: $76K across 3 grants, latest 2025Community Foundation of North Texas Inc → Baylor Scott & White All Saints Health Foundation: $55K across 2 grants, latest 2024Math for America → Katz Jonathan: $49K across 4 grants, latest 2024The Sorala Foundation → Rabbi M Katz: $15K across 4 grants, latest 2024Tyhko Family Foundation → Harold and Magda Katz Family Fund: $940K across 3 grants, latest 2024Jewish Federation of South Palm → Katz Yeshiva High School: $282K across 3 grants, latest 2023Stoneleign Foundation → Sarah Katz: $180K across 1 grant, latest 2024Math for America → Katz Deborah C: $45K across 3 grants, latest 2023Katz Foundation → Katz Jcc: $29K across 4 grants, latest 2025Community Foundation of North Texas Inc → Mater Dei School: $25K across 1 grant, latest 2024The Sorala Foundation → Rabbi Z Katz: $11K across 3 grants, latest 2024Leonard and Sandra Jacob Foundation → Temple University - School of Medicine: $10K across 1 grant, latest 2023Tyhko Family Foundation → Yitzy and Gila Katz Giving Fund: $940K across 3 grants, latest 2024Stoneleign Foundation → Sara Katz: $178K across 1 grant, latest 2023Community Foundation of North Texas Inc → All Saints Health Foundation: $25K across 1 grant, latest 2022Katz Foundation → Milton & Betty Katz Jcc: $5K across 1 grant, latest 2022The Sorala Foundation → Rabbi Zev Katz: $4K across 1 grant, latest 2022Math for America → Katz Deborah: $4K across 1 grant, latest 2024Community Foundation of North Texas Inc → Our Lady of Mercy Church & School: $20K across 2 grants, latest 2023Community Foundation of North Texas Inc → Stone Ridge School of the Sacred Heart: $10K across 1 grant, latest 2024Community Foundation of North Texas Inc → Boys & Girls Clubs of Greater Washington: $10K across 1 grant, latest 2024The Sorala Foundation → Rabbi S Katz: $3K across 3 grants, latest 2024The Sorala Foundation → Rabbi Y Katz: $2K across 1 grant, latest 2023The Heinz Endowments: $30M on this topic. Open the funder.The Heinz Endowments$30MTyhko Family Foundation: $2.8M on this topic. Open the funder.Tyhko Family Foundation$2.8MBenjamin and Mary Siddons Measey: $2.6M on this topic. Open the funder.Benjamin and Mary Siddons Mea…$2.6MJewish Federation of South Palm: $1.0M on this topic. Open the funder.Jewish Federation of South Pa…$1.0MStoneleign Foundation: $721K on this topic. Open the funder.Stoneleign Foundation$721KBorealis Philanthropy: $316K on this topic. Open the funder.Borealis Philanthropy$316KThe Carol and James Collins Foundation: $183K on this topic. Open the funder.The Carol and James Collins F…$183KKatz Foundation: $177K on this topic. Open the funder.Katz Foundation$177KCommunity Foundation of North Texas Inc: $145K on this topic. Open the funder.Community Foundation of North…$145KMath for America: $98K on this topic. Open the funder.Math for America$98KLeonard and Sandra Jacob Foundation: $86K on this topic. Open the funder.Leonard and Sandra Jacob Foun…$86KThe Sorala Foundation: $35K on this topic. Open the funder.The Sorala Foundation$35KPittsburgh Trust for Cultural Resources: received $30M on this topicPittsburgh Trust for Cultural R…$30MTemple University Katz Sch of Medic: received $2.6M on this topicTemple University Katz Sch of M…$2.6MChaim and Dena Katz Family Fund: received $940K on this topicChaim and Dena Katz Family Fund$940KHarold and Magda Katz Family Fund: received $940K on this topicHarold and Magda Katz Family Fu…$940KYitzy and Gila Katz Giving Fund: received $940K on this topicYitzy and Gila Katz Giving Fund$940KKatz Hillel Day School: received $721K on this topicKatz Hillel Day School$721KLewis Katz School of Medicine (Jessica Beard): received $363K on this topicLewis Katz School of Medicine (…$363KBari Katz Inc: received $316K on this topicBari Katz Inc$316KKatz Yeshiva High School: received $282K on this topicKatz Yeshiva High School$282KCollins & Katz Family YMCA: received $183K on this topicCollins & Katz Family YMCA$183KSarah Katz: received $180K on this topicSarah Katz$180KSara Katz: received $178K on this topicSara Katz$178KMarjorie and Lewis Katz Jcc: received $143K on this topicMarjorie and Lewis Katz Jcc$143KTemple University: received $76K on this topicTemple University$76KBaylor Scott & White All Saints Health Foundation: received $55K on this topicBaylor Scott & White All Saints…$55KKatz Jonathan: received $49K on this topicKatz Jonathan$49KKatz Deborah C: received $45K on this topicKatz Deborah C$45KKatz Jcc: received $29K on this topicKatz Jcc$29KMater Dei School: received $25K on this topicMater Dei School$25KAll Saints Health Foundation: received $25K on this topicAll Saints Health Foundation$25KOur Lady of Mercy Church & School: received $20K on this topicOur Lady of Mercy Church & Scho…$20KRabbi M Katz: received $15K on this topicRabbi M Katz$15KRabbi Z Katz: received $11K on this topicRabbi Z Katz$11KTemple University - School of Medicine: received $10K on this topicTemple University - School of M…$10KStone Ridge School of the Sacred Heart: received $10K on this topicStone Ridge School of the Sacre…$10KBoys & Girls Clubs of Greater Washington: received $10K on this topicBoys & Girls Clubs of Greater W…$10KMilton & Betty Katz Jcc: received $5K on this topicMilton & Betty Katz Jcc$5KRabbi Zev Katz: received $4K on this topicRabbi Zev Katz$4KKatz Deborah: received $4K on this topicKatz Deborah$4KRabbi S Katz: received $3K on this topicRabbi S Katz$3KRabbi Y Katz: received $2K on this topicRabbi Y Katz$2K
12 funders, 31 recipients, grants matching “katz” 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 →