Kainos, the Belfast IT firm, increased profits for the first half of this year by 16% to £34m.
Sales were up by 26% to £180m and the firm now employs almost 3,000 people.
Some major technology firms have announced falling profits and job cuts in recent weeks.
These have mostly been in consumer-focused firms whereas Kainos, which helps organisations to digitise their operations, sells to businesses and governments.
Kainos counts the UK government as one of its major clients.