Business communications provider PGi has named Rick Mace as chief executive officer. Mr. Mace succeeds Don Joos, who will be assuming the CEO role at TPx Communications, PGi said in a statement.  Both PGi and TPx Communications are portfolio companies of Siris Capital Group.

Mr. Mace has been an executive partner at Siris since 2011, and has served on the board of directors of several Siris portfolio companies, including Tekelec, Transaction Network Services (TNS) and Digital River, according to PGi.

[Image courtesy: PGi]