Before you apply to Mackworth-Mendoza Foundation
Who to contact, what to include, deadlines, typical grant size and geographic focus are available with membership.
Private Foundation
MACKWORTH-MENDOZA FOUNDATION
MACKWORTH-MENDOZA FOUNDATION is a Private Foundation headquartered in KEY BISCAYNE, FL. Financial data from the 2025 filing: $53K revenue, $585K expenses, $1.0M total assets. IRS filings disclose 72 grants awarded by this foundation, totaling roughly $1.6M.
EIN: 931296528
KEY BISCAYNE, FL
Private Grantmaking Foundations
NTEE: T20
Latest filing: 2025
Total Revenue$53K
Total Expenses$585K
Total Assets$1.0M
Grants Given72
Grant Total$1.6M
Filing Years2021–2025
Sample Grants Given
LITERARY ARTS
PROGRAM ACTIVITIES
$550,000
THE INTERNATIONAL SCHOOL
PROGRAM ACTIVITIES
$12,500
FEEDING SOUTH FLORIDA
PROGRAM SCTIVITIES
$5,000
OREGON FOOD BANK
PROGRAM ACTIVITIES
$5,000
AMERICAN DIABETES ASSOC
PROGRAM ACTIVITIES
$2,500
Showing up to 5 of 72 total records — full history available with membership.
Officers & Directors
MEMBER
Alexander Mackworth
PRESIDENT
Hugh F Mackworth
SECRETARY
Josie G Mendoza
Officer compensation and complete director data available with membership.
Top Grant Purposes
Financial Trends
| Year | Revenue | Expenses | Assets |
|---|---|---|---|
| 2025 | $53K | $585K | $1.0M |
| 2024 | $57K | $119K | $1.3M |
| 2023 | $58K | $107K | $1.4M |
| 2022 | $580K | $560K | $1.3M |
| 2021 | $26K | $63K | $1.5M |
Between 2021 and 2025, reported annual revenue grew from $26K to $53K (+104%), with total assets most recently reported at $1.0M.
Interactive year-over-year charts and full filing details available with membership.
Grant Geography
Grants from this foundation were reported to recipients in CA, FL, OH, OR, VA.
CAFLOHORVA
Full geographic grant map with state-by-state breakdown available with membership.