Blackstone is in advanced talks to buy Civica in a deal valuing the U.K.-based software developer at close to $2.5 billion including debt, according to people familiar with the matter.

The tie-up, if completed, could be announced as soon as Wednesday. It would mark Blackstone’s latest bet in the U.K. following its recent purchases of two hotels—one in Birmingham and another outside of Edinburgh—and a project to build affordable housing across the U.K.