The great acquisition spree continues at Aderant with the announcement (formal statement probably out mid-day Wednesday) that the company has just bought Scottsdale, Arizona-based Omega Legal Systems.

Omega (founded in 1975) has about 300 mid-tier law firms around the US using its time, billing and accounts software. Chris Giglio, the CEO of Aderant, said that by becoming part of the Aderant family, Omega users would be able to use other products within the Aderant portfolio (including CRM4Legal, CompuLaw and Aderant’s own front office applications such as ClearView BI) and so add value to their IT infrastructure.