Private company

Kof-K

Logo: LazarWeisz, CC BY-SA 4.0, via Wikimedia Commons3

Kosher certification agency in New Jersey, U.S.

Kof-K, a Teaneck, New Jersey–based Kosher certification agency, is one of the "Big Five" kosher certification agencies in the United States. As of 2010, more than one third of all food sold in the United States has kosher supervision, 80% of it from one of the "Big Five. " Its founder and rabbinic administrator was Rabbi Dr.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

Kof-K, a Teaneck, New Jersey–based Kosher certification agency, is one of the "Big Five" kosher certification agencies in the United States. As of 2010, more than one third of all food sold in the United States has kosher supervision, 80% of it from one of the "Big Five." Its founder and rabbinic administrator was Rabbi Dr.2

Sources

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