Private Foundation

SIFF CHARITABLE FOUNDATION C/O GRKB

SIFF CHARITABLE FOUNDATION C/O GRKB is a private foundation categorized as Private Foundation based in WORCESTER, MA. Its most recent IRS filing (2025) reports revenue of $136K, expenses of $107K, total assets of $83K. Imperigo tracks 356 reported grants from this foundation totaling approximately $774K.

EIN: 046112346 WORCESTER, MA Latest filing: 2025

Total Revenue$136K

Total Expenses$107K

Total Assets$83K

Grants Given356

Grant Total$774K

Filing Years2021–2025

Sample Grants Given

UMASS CHAN MEDICAL SCHOOL FOUNDATION

SHREWSBURY, MA · 2025

GENERAL

$26,600

NEW YORK UNIVERSITY

NEW YORK, NY · 2025

GENERAL

$15,000

WOODSTOCK FILM FESTIVAL

WOODSTOCK, NY · 2025

GENERAL

$15,000

NEXT FOR AUTISM

NEW YORK, NY · 2025

GENERAL

$12,000

ALPINE LEARNING CENTER

PARAMUS, NJ · 2025

GENERAL

$5,000

Showing up to 5 of 356 total records — full history available with membership.

Officers & Directors

TRUSTEE Karen Siff-Exkorn

TRUSTEE Lawrence Siff

TRUSTEE Shirley S Siff

Officer compensation and complete director data available with membership.

Top Grant Purposes

GENERAL

$773,929 356 grants

Financial Trends

Year	Revenue	Expenses	Assets
2025	$136K	$107K	$83K
2024	$126K	$101K	$54K
2023	$60K	$72K	$29K
2022	$56K	$88K	$40K
2021	$134K	$80K	$72K

Between 2021 and 2025, reported annual revenue held roughly steady at around $136K, with total assets most recently reported at $83K.

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

Grant Geography

Grants from this foundation were reported to recipients in AL, CA, CO, CT, FL, LA, and 4 other states.

ALCACOCTFLLAMAMDMINJ

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

See the full picture for SIFF CHARITABLE FOUNDATION C/O GRKB

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