Kof-K
Kof-K, a Teaneck, NJ-based Kosher certification agency, is one of the "Big Five." It is trusted Worldwide by many Orthodox Jews for dedication to preserving Kashrut.
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 founderand rabbinic administrator is Rabbi Dr. Harvey Senter.
While the Kof-K's certification is largely for products, they also certify kosher eateries.
