Aberdeen-based Hydrasun saw a jump in turnover to £84.24million during the year to March 31, 2012 – up from £64.65million in 2010-11.
Figures just released by Companies House showed the firm also reported an increase in pre-tax profits to £10.14million, from £6.53million previously.
Hydrasun, which specialises in integrated fluid-transfer, power and control services, said that demand for its technology and services remained strong and increased significantly in some areas, including integrity management and specialist products and applications.
Hydrasun – founded in 1976 by Bill Cameron and Stan Fraser – saw its average number of employees swell to 522 in the latest period, from 459 previously.
Two years ago, the group relocated to purpose-built headquarters in Aberdeen on the back of major growth in the North Sea and overseas.