Funding search · EIN 860891827 · Tucson, AZ

William and Mary Ross Foundation

Name: William and Mary Ross Foundation grants, 2022–2024
Creator: PaperOrbit
License: https://www.irs.gov/charities-non-profits/exempt-organization-public-disclosure-and-availability-requirements

A private foundation (files IRS Form 990-PF). Most private foundations do not take unsolicited applications; the route in is usually a program officer.

61
grants reported: $2.3M
total given: 2022–2024
filing years: $25,000
median grant

Based on grants this organization reported to the IRS for tax years 2022–2024. This is what they filed, not a complete record of their giving, and recent years may be incomplete because filings lag.

What they fund

porgram

Full IRS filings ↗How this is built Report an error

Funding pattern

What this funder pays for, at what size, and how to position adjacent work. Read from their filings, with every number checked against the record.

Top recipients

Repeat recipients are the strongest signal of whether a funder has an open door or quietly re-funds the same organizations.

Calvary Chapel Christian Schools3 grants · $625,000
St John Xxii Catholic School Community3 grants · $297,227
University of Arizona Foundation3 grants · $135,000
Tucson Festival of Books2 grants · $100,000
Cristo Rey Network1 grant · $82,000
Magnolia Project1 grant · $80,000
Reid Park Zoological Society1 grant · $75,000
Coronado Hospital Foundation3 grants · $75,000
Tmc Foundation3 grants · $60,000
Tucson Conquistadores Foundation2 grants · $55,000

Giving over time

$777,727

2022

$789,536

2023

$775,220

2024

Grant history

All 61 reported grants, largest first.

$250,000
Calvary Chapel Christian Schools · Tucson, AZ · 2024
Program support
$200,000
Calvary Chapel Christian Schools · Tucson, AZ · 2023
Program support
$175,000
Calvary Chapel Christian Schools · Tucson, AZ · 2022
Program support
$135,000
St John Xxii Catholic School Community · Scottsdale, AZ · 2023
Program support
$116,000
St John Xxii Catholic School Community · Scottsdale, AZ · 2024
Program support
$82,000
Cristo Rey Network · Chicago, IL · 2022
Program support
$80,000
Magnolia Project · Imperial Beach, CA · 2024
Program support
$80,000
University of Arizona Foundation · Tucson, AZ · 2024
Program support
$75,000
Reid Park Zoological Society · Tucson, AZ · 2023
Program support
$65,000
Tucson Festival of Books · Tucson, AZ · 2022
Program support
$50,000
University of Arizona Foundation · Tucson, AZ · 2023
Program support
$46,227
St John Xxii Catholic School Community · Scottsdale, AZ · 2022
Program support
$44,536
Desert Meadows Pta · Laveen Village, AZ · 2023
Program support
$40,000
Sister Jose Women'S Center · Tucson, AZ · 2022
Program support
$35,420
Assistance League of Tucson · Tucson, AZ · 2024
Program support
$35,000
Tucson Festival of Books · Tucson, AZ · 2024
Program support
$35,000
Sacred Heart Church · Tucson, AZ · 2022
Program support
$30,000
St John South Catholic · North Charleston, SC · 2024
Program support
$30,000
Children'S Museum Oro Valley · Oro Valley, AZ · 2023
Program support
$30,000
Tucson Conquistadores Foundation · Tucson, AZ · 2023
Program support
$30,000
Boys & Girls Club · Tucson, AZ · 2022
Program support
$30,000
Gospel Rescue Mission · Tucson, AZ · 2022
Program support
$25,000
Coronado Hospital Foundation · Coronado, CA · 2024
Program support
$25,000
Humane Society of Southern Arizona · Tucson, AZ · 2024
Program support
$25,000
Salpointe Catholic Education Foundation · Tucson, AZ · 2024
Program support
$25,000
Tmc Foundation · Tucson, AZ · 2024
Program support
$25,000
Tucson Conquistadores Foundation · Tucson, AZ · 2024
Program support
$25,000
Camp Able · La Mesa, CA · 2023
Program support
$25,000
Coronado Hospital Foundation · Coronado, CA · 2023
Program support
$25,000
Emerge Center Against Domestic Abuse · Tucson, AZ · 2023
Program support
$25,000
Impact of Southern Arizona · Tucson, AZ · 2023
Program support
$25,000
Midwest Food Bank Arizona · Tucson, AZ · 2023
Porgram support
$25,000
Tmc Foundation · Tucson, AZ · 2023
Program support
$25,000
Coronado Hospital Foundation · Coronado, CA · 2022
Program support
$25,000
Midwest Food Bank Arizona · Tucson, AZ · 2022
Porgram support
$25,000
San Miguel High School · Tucson, AZ · 2022
Program support
$25,000
The Neurosurgical Atlas · Indianapolis, IN · 2022
Program support
$25,000
University of Arizona Adaptive Athletics · Tucson, AZ · 2022
Program support
$25,000
University of Arizona Cancer Center · Tucson, AZ · 2022
Program support
$25,000
Valley of the Sun · Phoenix, AZ · 2022
Program support
$25,000
Youth On Their Own · Tucson, AZ · 2022
Program support
$20,000
The Dynamic Catholic Institute · Erlange, KY · 2023
Program support
$20,000
Toys for Tots · Tucson, AZ · 2022
Program support
$15,000
Salvation Army · Tucson, AZ · 2024
Program support
$15,000
Ronald McDonald House Charities of Southern Arizona · Tucson, AZ · 2023
Program support
$10,000
Act One · Phoenix, AZ · 2023
Program support
$10,000
Casa Maria · Tucson, AZ · 2023
Program support
$10,000
Heart of the Nation · Milwaukee, WI · 2023
Program support
$10,000
Ronald McDonald House Charities of Southern Arizona · Tucson, AZ · 2022
Program support
$10,000
Salpointe Catholic High School Education Foundation · Tucson, AZ · 2022
Program support
$10,000
Tmc Foundation · Tucson, AZ · 2022
Program support
$5,000
St Augustine Catholic High School · Tucson, AZ · 2024
Program support
$5,000
Centurions · Tucson, AZ · 2023
Program support
$5,000
No Kid Hungry · Washington, DC · 2023
Program support
$5,000
Hope Mental Health Foundation · Tucson, AZ · 2022
Program support
$5,000
Silver & Turquoise Board of Hostesses · Tucson, AZ · 2022
Program support
$5,000
Unicef USA Org · New York, NY · 2022
Program support
$5,000
University of Arizona Foundation · Tucson, AZ · 2022
Program support
$3,800
St Thomas the Apostle · Tucson, AZ · 2024
Program support
$3,500
Centurions · Tucson, AZ · 2022
Program support
$1,000
First Tee of Tucson · Tucson, AZ · 2022
Program support

Who else funds this kind of work

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Search funders like this one

Source: IRS Form 990-PF, Part XV, as filed by the foundation. These are grants already paid — a record of what this funder backs, not an open call.