Financial Software provider First Derivatives has acquired three London-based businesses in a deal valued at £3.2m (€3.9m).
The three firms are involved in supplying technology, consulting and investment management services to the financial services sector.
Newry-based First Derivatives works with investment banks and other financial institutions and has developed technology that helps manage electronic, high volume trading systems.
The deal will see First Derivatives take up 15 new staff in London.
In a statement issued to the London Stock Exchange First Derivatives said it hoped the deal would open up new business opportunities by expanding its base of clients and adding to its technology expertise.
First Derivatives shares rose 0.7% on the Alternative Investment Market in London.