Pennsylvania Certified Organic (PCO) is a USDA-accredited organic certifying agency that educates and certifies growers, processors and handlers of organic crops, wild crops, livestock and livestock products in Pennsylvania and adjoining states.

Primuslabs is accredited by the USDA as an organic certifier under the National Organic Program.

Pro-Cert Organic Systems Ltd. (formely OCPP/Pro-Cert Canada) is Canada's foremost national certifier of organic food products with some 1,700 producers, processors and traders from across Canada and the United States of America.