Silson, Southam (near Coventry)
This high-tech Warwickshire manufacturing firm makes ultra-thin membranes for use at the cutting edge of science.
Based at Insight Park in Southam, it has around 600 customers in 35 countries around the world, which include research institutes working with x-ray and electron beam technology.
Last year it received major backing from Lloyds Bank Commercial Banking and the University of Warwick Science Park and moved to state-of-the-art premises.
Check out our '101 Birmingham and Midlands’ list for more tech stars from the region.