Immunodiagnostic Systems Holdings expects revenue for the year ended 31 March to be approximately £40m, an increase of around 4% compared to the previous year.
It said revenue had been favourably impacted by the weakening of the pound against the euro and US dollar.
At constant exchange rates the revenue decreased by around 8%.
It said there were no changes in scope during the last financial year, so these numbers were like for like.
The group said preliminary results for the year ended 31 March would be announced on 21 June.