April 24, 2018

Quality Sound*

February 8, 2019

Parsons Electric

April 24, 2018

Paganini Communications, Inc.*

April 24, 2018

PAC Integrations, Inc.*

April 24, 2018

Metro Electric*

April 24, 2018

McMillan Data Communications*

February 8, 2019

Integrated Security Control, Inc.

April 24, 2018

ICS – Integrated Communication Systems*

April 24, 2018

Industrial Electronic Systems Inc.