Foundations · IRS 990 filings

Foundations in Clayton, Missouri

98
foundations with a Clayton address
$37.3M
grants paid, FY2023–FY2025
20
say they accept unsolicited
$31,500
median grant

Grantlas lists 98 foundations that gave a Clayton, Missouri address on their tax filing — 95 private foundations and 3 grantmaking charities such as community foundations and United Ways — from filings for FY2023–FY2025. Together they paid out $37.3 million in grants in their latest filing year, and 20 of them (20%) say they accept unsolicited requests.

Not every foundation here is a Clayton foundation. The city is the mailing address on the foundation’s tax filing, and when a bank or a law firm runs the trust that is the bank’s address, not the place it gives to. Check where a foundation gives before you write.

Top 25 of 98 foundations

Ranked by what they paid in grants in their latest filing, with the ones that accept unsolicited requests first, then the ones whose filing doesn’t say.

Foundations in Clayton, Missouri
Anheuser-Busch FoundationAccepts$6.2M$6.2M—FY2024Locked: fit score and contacts
Ross Family FoundationAccepts$12,000$4.5M$1,000–$1.3MFY2024Locked: fit score and contacts
Mysun Charitable FoundationAccepts$3.3M$3.6M$3.1M–$3.6MFY2024Locked: fit score and contacts
Graybar FoundationAccepts$5,000$1.2M$500–$275,000FY2024Locked: fit score and contacts
Richard W & Phyllis B Duesenberg FoundationAccepts$1.2M$1.2M—FY2024Locked: fit score and contacts
Norman J Stupp FoundationAccepts$10,000$1M$5,000–$50,000FY2024Locked: fit score and contacts
Mildred Herbert and Julian Simon FoundationAccepts$814,764$973,721$655,806–$973,721FY2024Locked: fit score and contacts
Maor FoundationAccepts$120,000$957,000$75,000–$500,000FY2024Locked: fit score and contacts
Preston M Green Charitable FoundationAccepts$100,000$870,000$70,000–$700,000FY2024Locked: fit score and contacts
Gorman FoundationAccepts$313,240$610,479$16,000–$610,479FY2024Locked: fit score and contacts
David and Dorothy Kemper Family FoundationAccepts$5,000$592,659$2,500–$424,159FY2024Locked: fit score and contacts
Elberth R & Gladys F Grant CharAccepts$365,000$365,000—FY2024Locked: fit score and contacts
John M Wolff FoundationAccepts$25,000$260,000$5,000–$55,000FY2025Locked: fit score and contacts
Bryan Lynch Family FoundationAccepts$10,000$137,000$500–$65,000FY2025Locked: fit score and contacts
The Jackes FoundationAccepts$135,500$135,500—FY2024Locked: fit score and contacts
Bascom Charitable FoundationAccepts$3,000$121,500$500–$36,000FY2025Locked: fit score and contacts
The Tim and Lillian Soldwedel FoundationAccepts$4,000$28,000$2,000–$20,000FY2024Locked: fit score and contacts
Elnel FoundationAccepts$16,850$15,000$15,000–$18,700FY2025Locked: fit score and contacts
Leader FoundationAccepts$14,629$13,917$13,917–$15,341FY2025Locked: fit score and contacts
Mr & Mrs Norman B Heimos FoundationAccepts$3,084$3,084—FY2023Locked: fit score and contacts
Ivy J Trimmer TrustGrantmaking charityNot stated$60,652Over $5k only$60,652—FY2024Locked: fit score and contacts
The Snow FoundationPublic foundationNot stated$30,000Over $5k only$56,910One amountFY2024Locked: fit score and contacts
Alice G Ogg Trust Under WillGrantmaking charityNot stated$28,319Over $5k only$52,208$26,104–$30,534FY2025Locked: fit score and contacts
Cox Foundation IncInvitation only$5,000$1.9M$500–$1MFY2025Locked: fit score and contacts
June Michael Charitable TrustInvitation only$1.4M$1.4M$1.4M–$1.5MFY2024Locked: fit score and contacts
  • Median grant and grant range come from each funder’s grant schedule; a dash means there is none to report. Community foundations and other charities list only grants over $5,000, so their figures run high.
  • “One grant” means a schedule with a single grant — no median, nothing to range over. “One amount” means several grants, all the same size.
  • A median grant larger than the grants paid is not a mistake: the grant schedule and the year’s total come from different parts of the tax filing, and a foundation can list a grant it approved in a year it paid out less.

73 more foundations — see all in Grantlas

Data from 990-PF and Form 990 filings, FY2023–FY2025. Updated November 8, 2026.