Certificate d.o.o. is a family-owned company that employs nine employees and manufactures ready to use culture medium. Production is conducted according to the principles of Good Manufacturing Practice (GMP) and within production we carry out research and development of innovative products, all within the framework of market research and customer demand. We offer a wide range of nutrient culture media. Our products are used for isolation of microorganisms from: food, water, environment, clinical material in human and veterinary medicine, objects of general use, as well as for determining hygiene indicators and spoilage agents.