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
PORTLAND, OR · 2025
PROGRAM ACTIVITIES
$550,000
THE INTERNATIONAL SCHOOL
PORTLAND, OR · 2025
PROGRAM ACTIVITIES
$12,500
FEEDING SOUTH FLORIDA
PEMBROKE PARK, FL · 2025
PROGRAM SCTIVITIES
$5,000
OREGON FOOD BANK
PORTLAND, OR · 2025
PROGRAM ACTIVITIES
$5,000
AMERICAN DIABETES ASSOC
ARLINGTON, VA · 2025
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

PROGRAM ACTIVITIES
$1,590,325 63 grants
PROGRAM SCTIVITIES
$26,500 7 grants
PORGRAM ACTIVITIES
$5,000 2 grants

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.

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