John Stewart

A.M. Castle & Co. engages in the provision of metals, services, and supply chain solutions. It also distributes and processes alloy, carbon, stainless steel, nickel, aluminum, titanium, cast iron, and red metals. The company was founded in 1890 and is headquartered in Oak Brook, IL.

Banner Service Corp. supplies precision ground bar, center less grinding and turning services. Its products and services include materials offering, manufacturing capabilities, value added services, supply chain management and quality management systems. The firm operates through Banner Commercial and Banner Medical business units. The company serves aerospace, pump, arms and ammunition, automotive, precision machine shops, printing equipment and service centers. The company was founded in 1961 and is headquartered in Carol Stream, IL.

Monomoy Capital Partners LLC (Monomoy Capital Partners) is a Private Equity firm founded in 2005 by Stephen Presser, Dan Collin and Justin Hillenbrand. The firm is headquartered in New York.

MiddleGround Management LP (MiddleGround Capital) is a private equity firm founded in 2018 by John Stewart and Lauren Mulholland. The firm is headquartered in Lexington, Kentucky.