BioSurface Technologies Corporation (BST) was founded in 1994 in Bozeman, Montana, USA. The company's goal is to provide biofilm reactor systems for evaluations and monitoring of biofilm processes. It is the sole licensed manufacturer of the Biofilm Annular Reactor, Drip Flow Biofilm Reactor®, Rotating Disk Biofilm Reactor, and CDC Biofilm Reactor®. It also manufactures a wide variety of microscopy flow cells, including transmission flow cells and coupon evaluation flow cells. Much of the research and development conducted is in conjunction with other biofilm research groups and universities. BST strives to always produce the best biofilm products on the market.