Founded in 1955, Advanced Instruments is a privately held business that offers a range of analytical instruments and test kits for customers in the food, dairy and industrial microbiology markets. The company is one of the world s largest suppliers of freezing-point osmometers used in clinical, pharmaceutical and biotechnology laboratories. It maintains a distribution network of independent dealers throughout the world. The company owns and operates Spiral Biotech, which produces automated microbiology systems for research and environmental sciences laboratories. It also manages Delta Instruments, which offers equipment for monitoring raw and processed products. Advanced Instruments provides products under the Advanced, Fiske and ControLine brands.