ICS Computing, which has its headquarters in Belfast, has said its annual turnover has increased to €18 million from €15 million during the year to the end of March last.

Operating profits rose to €1.8 million from €1.3 million.

The outsourcing specialist now employs 250 people at offices in Belfast, Dublin and in Britain. It has benefited from two high-profile public sector contracts in recent months. It is developing a €9 million system for the Northern Ireland Rates Collection Agency to support revaluation of properties.

With partner Steria it has also landed a €30 million contract to provide an electronic document records management (EDRM) system for the Northern Ireland Civil Service. ICS said this is the largest EDRM contract of its kind currently under way in western Europe. Managing director David Mawhinney also said the company had seen strong demand for its payroll products in Britain.

"The past 12 months have been an exceptionally positive period for ICS, with several major contract wins secured, and looking forward, our order book for the new financial year has never been stronger - with significant contracts in both the all-Ireland and British markets already underway," said Mr Mawhinney.

ICS specialises in software for human resources and payroll, as well as developing software for the public sector.