A kosher certification agency is an organization or certifying authority that verifies that the ingredients, machinery used, and the production process all comply with the standards of kashrut. Each agency has its own identifying symbol that foodservice manufacturers and providers can display on their packaging and marketing materials to allow their customers to quickly identify a product as kosher.
Chicago Rabbinical Council Kosher: Located in Chicaco, IL, Chicago Rabbinical Council is North America's largest regional Orthodox organization. The nonprofit's kosher certification is available worldwide.
KOF-K Kosher Supervision:
Based in New York. Apart from being one of the most recognized kosher certifiers in the United States, KOF-K was also the first to implement computer technology in its certification and supervision practices.
KOF-K Kosher Supervision (Dairy): Bears the same weight as the basic symbol. The "D" to the bottom right indicates that the product contains dairy components.
Kosher Supervision of America (KSA): Largest recognized and accepted certification in the U.S. Certifies worldwide to ensure products meet even the most demanding kosher requirements.
Organized Kashrus Laboratories (OK): Founded in 1935 and based in NY, the Organized Kashrus Laboratories (OK) provides certification for companies such as Post, Swiss Miss, Yoplait, and Tropicana.
Organized Kashrus Laboratories Dairy (OK Dairy): Bears the same weight as the OK symbol and certifies that the product came from a kosher animal, all ingredients are kosher and free from meat, and the product was produced on kosher equipment.
Orthodox Union: Has been certifying goods for over 80 years and is the largest and one of the most trusted kosher supervisors in the world.
Orthodox Union (Dairy): Bears the same weight as the basic symbol. The "D" to the bottom right indicates that the product contains dairy components.
Shield Star K: Committee of kosher experts certifies products globally. Ensures that products meet the highest kosher standards.
Star-D (Kosher Dairy): Bears same weight as the basic symbol, complying with all standards, except Star-D products are not cholov yisroel, but instead cholov stam.
STAR-K Kosher: Certification is based in Baltimore, Maryland and has offices all over the United States, as well as in Israel, China, and India. They are one of the largest, most technologically integrated certifiers in North America.
Va'ad Hakashrus of Buffalo Kosher (BVK): BVK was founded in 1981 as a service to the local community. This reputation has led the agency's certifications to be accepted everywhere today.
Vaad Hoeir of St. Louis Kosher (OV): The OV certification comes from Vaad Hoeir of St. Louis, MO, the governing body of the St. Louis Orthodox Jewish community.