Helix Electric

Stronghold Engineering is a design and construction company that specializes in renowned projects. The company provides services including design-build, engineering-procurement-construction (EPC), civil and high-voltage electrical construction, new construction and modernization, and more. The company designs and constructs various ground-up facilities, technically challenging repairs and renovations for historical and non-historical facilities, and significant seismic upgrades, as well as big civil, infrastructure, and electrical projects. The company was founded in 1991 and is based in Perris, California.

Advanced Manufacturing Technologies (AMT) is a full-service electronic contract manufacturer of printed circuit boards (PCBs) and electro-mechanical assemblies. It offers conceptual design, surface mount technology (SMT), design for manufacturing (DFM), testing, RoHS-compliant manufacturing, and more. It was founded in 1990 and is based in Export, Pennsylvania.

CBD is a contract-based manufacturer of electronic assemblies. It specializes in the manufacturing of PCB assemblies. The company was founded in 1975 and is based in Elgin, Illinois.

Touchstone is an electrical contractor. It offers a range of consulting, engineering, and construction services to provide electrical solutions for clients projects. The company works with clients in the retail, manufacturing, entertainment, financial, and health care industries. It was founded in 2014 and is based in Cypress, California.

TriVersity is a construction company. It provides general contracting, design-build, and construction management services. It caters to customers who have complex requirements, stringent regulatory frameworks, and demanding standards for quality and safety. It was founded in 2005 and is based in Cincinnati, Ohio.

McDonald Technologies (MTI) is an Electronics Manufacturing Services (EMS) company that aims to provide the design and manufacture of low-to-medium volume, high-mix, custom assembly products as well as custom engineering services. MTI is engaged primarily in the assembly of printed circuit boards, back-planes, cable harnesses and electro-mechanical assemblies; however, it also designs and manufactures electrical products under fixed-price and cost-plus contracts. In addition, MTI aims to provide engineering support in the form of acquisition management studies, analysis and design. The Company aims to serve a variety of industries, including: aerospace, automotive systems, communications, computer systems, consumer electronics, defense electronics, geophysics, medical, tele-communications, and instrumentation.