April 24, 2018

Industrial Electronic Systems Inc.

November 19, 2018

IDT, Inc.

April 24, 2018

H. A. Bowen Electric*

April 24, 2018

Fisk*

February 7, 2019

Design Electric

April 1, 2018

Cupertino Electric*

April 24, 2018

Contra Costa Electric Inc.*

April 2, 2018

CH Reynolds Electrical and Data*

February 7, 2019

CalTek Communications