Onex, a private equity firm, completed the acquisition of Enertech Holdings, a wireless infrastructure service provider, form Tower Arch Capital, a lower-middle market private equity fund. Financial terms were not disclosed. “Enertech is a market leader due to a relentless focus on exceptional customer service, employee safety, and technical expertise. We are thrilled to partner with Eric Chase and the Enertech management team to continue to grow the business through acquisitions and organic growth,” Edmund Kim, ONCAP Managing Director.