Peak Scientific makes gas generators for laboratories - including nitrogen and hydrogen generators - for use with other scientific equipment. Managing director Robin MacGeachy founded the company in 1992 and it now sells to 110 countries. Peak has won the Queen's Award for exports three times. In 2012 it extended its Renfrewshire base to double production capacity. It made a healthy £4.7m profit on £28.8m sales in 2013.
Activity: Laboratory equipment
Latest turnover: £29m
Five-year rise in turnover: 190%
No. of employees: 216
Five-year rise in employment: 204%