Mary Sigler

Ryerson, Inc. is a platinum equity company, which engages in the processing and distribution of metal products. The company process and distributes products in stainless steel, aluminum, carbon steel and alloy steels and a limited line of nickel and red metals in various shapes and forms which include coils, sheets, rounds, hexagons, square and flat bars, plates, structurals and tubing. It provides a broad range of processing and fabrication services and supply chain solutions, including just-in-time delivery and value-added components to original equipment manufacturers. The company's services include: just-in-time inventory programs, production of kits containing multiple products for ease of assembly by the customer, consignment arrangements, and production and technical assistance. Ryerson was founded in 1842 and is headquartered in Chicago, IL.

Ernst & Young LLP engages in the provision of accounting, assurance, tax, transaction, and advisory services. It specializes in the actuarial, analytics and big data, cyber security, accounting compliance and reporting, center for board matters, international financial reporting standards, country tax advisory, global trade, tax accounting, and climate change and sustainability. The company was founded in 1989 and is headquartered in New York, NY.

Commercial Barge Line Co. provides inland marine transportation services. It offers barge transportation and related services and manufactures barges, primarily for brown-water use. The company was founded in 2004 and is headquartered in Beverly Hills, CA.

The American Institute of Certified Public Accountants provides vocational education in accounting. The company provides services to the accounting community, regulatory bodies, and other organizations. It also operates in Jersey City, Washington, and Lewisville. It was founded in 1887 and is headquartered in New York City, NY.

Gtceisu Construccion SA provides concrete foundation engineering and construction services. The firm services include pile driving, core wall reinforcement, grouting, and waterproofing. It also provides environmental consulting and remediation services. The company was founded in 1959 and is headquartered in Madrid, Spain.

Platinum Equity Advisors LLC (Platinum Equity Advisors) is a private equity firm founded in 1995 by Tom Gores. The firm is headquartered in Los Angeles, California.