Helsiniki, Finland-based SysOpen said that it will have 450 Symbian experts following the takeover of Yomi, which was previously a 100% owned subsidiary of Finnish telecoms group Elisa.

Yomi develops software for mobile device manufacturers and operators based on Symbian operating systems and Linux-based platforms. It has a focus on application functions including multimedia and streaming, network management, content distribution, device management, and J2EE and Web services, and is one of more than 200 Symbian Platinum Partners worldwide.

Yomi made a pre-tax loss of 500,000 euros ($666,000) on revenue that grew 22% to 16.8m euros ($22.4m) in full-year 2004. It brings 270 employees to SysOpen, which said that on a pro-forma basis, the two companies made a combined pre-tax and amortization earnings of 5.8m euros ($7.7m) on revenue of 64.1m euros ($85.4m). The two companies have a combined workforce of 800.

SysOpen aims to integrate Yomi into its existing operations by the end of June 2005, which it expects to generate annual cost savings of about 1m euros ($1.3m) from 2006.

SysOpen has been one of the most acquisitive players in the Nordic IT services market. It became the third largest IT services provider listed on the Helsinki stock exchange last month when SysOpen acquired domestic rival Digia in an all-share deal.