NEW YORK and LOS ANGELES, August 19, 2019-- Siris, a leading private equity firm focused on investing and driving value creation in technology and telecommunications companies, today announced that affiliates of Siris have entered into a definitive agreement to acquire U.S. TelePacific Holdings Corp. dba TPx Communications ("TPx"), the premier managed services provider, from investors including affiliates of Investcorp and Clarity Partners. Terms of the transaction were not disclosed.