Meridian Bioscience Inc. | 28,096 followers on LinkedIn. Meridian is a fully integrated life science company that develops, manufactures, markets and distributes a broad range of innovative diagnostic test kits, rare reagents, specialty biologicals and components. Utilizing a variety of methods, our diagnostic tests provide accuracy, simplicity and speed in the early diagnosis and treatment of common medical conditions, such as infections and lead poisoning. Meridian’s diagnostic products are used outside of the human body and require little or no special equipment.