Robert G. Terwall

Plibrico Co. LLC manufactures and installs aluminosilicate and alumina monolithic refractories. It provides refractory materials, as well as plastics and ram mixes, castables, low and ultra low cement, gun mixes, injection and service mixes, mortar, and aluminum contact products. The company also offers engineering, construction, and manufacturing services, as well as installation services. Plibrico was founded in 1914 and is headquartered in Chicago, IL.

Adolph Kiefer & Associates LLC supplies swim wear and water safety equipment. The firm offers swimsuits, swim caps, shorts, parkas, t-shirts, bags, sweat shirts and pants, stadium chairs, goggles, equipment bags, stretch cords, racing lanes, kickboards, pull buoys, hand paddles, starting blocks, deck exercise mats, fins, and starting systems, as well as swim trainers. The company was founded by Adolph Gustav Kiefer in 1947 and is headquartered in Zion, IL.

Part of Honeywell International, Inc., C & K Systems is a company that manufactures and sells residential and commercial security products. The company is based in Folsom, CA. C&K Systems was acquired by Honeywell, Inc. on September 10, 1999.

Cubic Transportation Systems, Inc. provides automated fare collection systems for public transport. The firm's services include system design, central computer systems, equipment design and manufacturing, device-level software, integration, installation, warranty, maintenance, computer hosting, and call centre services. The company is founded in 1951 and headquartered in San Diego, CA.

BB Industries Supply LLC distributes and supplies tools, and materials for granite, marble, stone fabricators and tile contractors. It supplies tools and machines for tile installation and decorative concrete projects. The company was founded in 1995 and is headquartered in Knoxville, TN.

Arens Controls Co. LLC designs, engineers, and manufactures precision operator interface control systems and power management systems for commercial vehicles. The firm specializes in power electronic drivetrain components and systems for the hybrid electronic vehicle market. The company was founded in 1939 and is headquartered in Charlotte, NC.

Cotta Transmission Co. LLC designs and manufactures mechanical transmissions. The firm's products include speed reducers, speed increasers, high speed transmissions and pump and reversing drives. The company was founded by Charles Cotta in 1906 and is headquartered in Beloit, WI.

The Randolph Group Inc (The Randolph Group) is a private equity firm founded in 1988 by Frederick Eck. The firm is headquartered in Chicago, Illinois.

Rockford Systems LLC offers machine guarding and control products and solutions. Its products includes safeguarding fabricating, cutting and turning, and opening scales machines. It also offers machine safeguarding seminars, machine surveys, proposals, technical support, equipment installation, and repairs and maintenance calls services. The company was founded in 2014 and is headquartered in Rockford, IL.

Hawk Research Laboratories LLC is a company based in Wheeling, IL. John Kenny has been the CEO of the company since 2017.