Private Foundation

The Robert M Sonneborn & Hortense K Sonneborn Charitable Foundation

Based in Boca Raton, FL, The Robert M Sonneborn & Hortense K Sonneborn Charitable Foundation operates as a Private Foundation. The organization reported $2 in revenue, $1K in expenses, $19K in total assets for fiscal year 2025. Imperigo tracks 5 reported grants from this foundation totaling approximately $7K.

EIN: 814744020 Boca Raton, FL Latest filing: 2025

Total Revenue$2

Total Expenses$1K

Total Assets$19K

Grants Given5

Grant Total$7K

Filing Years2021–2025

Sample Grants Given

Trustbridge Hospice Foundation

West Palm Beach, FL · 2024

For patient services

$1,205

Trustbridge Hospice Foundation

West Palm Beach, FL · 2023

For patient services

$1,360

Trustbridge Hospice Foundation

West Palm Beach, FL · 2022

For patient services

$1,500

Trustbridge Hospice Foundation

West Palm Beach, FL · 2021

For patient services

$1,640

Trustbridge Hospice Foundation

West Palm Beach, FL · 2020

For patient services

$1,790

Showing up to 5 of 5 total records — full history available with membership.

Officers & Directors

Trustee R Brady Osborne Jr

Officer compensation and complete director data available with membership.

Top Grant Purposes

For patient services

$7,495 5 grants

Financial Trends

Year	Revenue	Expenses	Assets
2025	$2	$1K	$19K
2024	$2	$3K	$20K
2023	$2	$3K	$23K
2022	$2	$3K	$26K
2021	$3	$3K	$29K

Between 2021 and 2025, reported annual revenue declined from $3 to $2 (-33%), with total assets most recently reported at $19K.

Interactive year-over-year charts and full filing details available with membership.

Grant Geography

Grants from this foundation were reported to recipients in FL.

FL

Full geographic grant map with state-by-state breakdown available with membership.

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