This medtech firm specialises in diabetic equipment, such as blood glucose monitoring systems, needles and lancets, which it manufactures at sites in Cambridgeshire and Chicago. Sales grew to more than £34m in 2021, boosted by demand for Covid-19 personal protective equipment. Microdot is a trading name of Cambridge Sensors, which was spun off from Cambridge University’s Department of Biotechnology in 1991. Microdot’s Co-founders are Chris Lowe – Professor Emeritus of Biotechnology at Cambridge – and chief executive James McCann who run the company.