William J. Shields

Black Hills Power, Inc. generates, transmits, and distributes electricity. The firm is a regulated electric utility company serving customers in South Dakota, Wyoming, and Montana. The company was founded in 1941 and is headquartered in Rapid City, SD.

Keystone Cement Co. engages in the manufacture and commercialization of construction products. It specializes in Portland and masonry cements used in the construction of highways, bridges, and buildings. The company was founded in 1928 and is headquartered in Bath, PA.

Part of Fortaleza Materiales SAB de CV, Giant Cement Co. is a producer of top quality Portland and masonry cements. The company is based in Harleyville, SC and provides materials for highways, bridges, and buildings. Giant Cement has contributed to the construction of important projects such as Interstate 26, the Mark Clark Expressway, and the University of South Carolina. The company's mission is to create sustainable value for its shareholders, employees, customers, and communities by providing high-quality products and services. With state-of-the-art technology and a dedicated team, Giant Cement seeks to fulfill the market needs and be the supplier of choice in the construction industry.

Giant Cement Holding, Inc. produces masonry cement and related aggregates. It operates limestone quarries in Portland and masonry cement-manufacturing facilities in South Carolina. The firm's products and services include cement, recycling and aggregates. The company was founded in 1883 and is headquartered in Summerville, SC.

DT-Trak Consulting, Inc. provides professional medical claims management, revenue enhancement, training, and on-site consulting services nationwide. The private company is based in Miller, SD.

BDO USA LLP operates as an accounting, auditing, and bookkeeping firm. It offers advisory; audit and assurance; digital; and tax services. The company was founded by Maximillian L. Seidman in 1910 and is headquartered in New York, NY.

Rogers & Co. organizes events and trade shows. The private company is based in Vienna, MO.

Peter Browning Partners LLC provides advisory services. It offers board advisory services, advices and counsel to CEO’s, Executive coaching and advising. The company was founded by Peter C. Browning and is headquartered in Charlotte, NC.

Ewing Capital Partners LLC provides investment services. The private company is based in Jacksonville, FL. The company was founded by Walter Allen Rogers.

Kidder, Peabody & Co., Inc. provides security brokerage services. The private company is based in Buffalo, NY and has subsidiaries in Switzerland. The company was founded by Thomas W. Ostrander.

The Portland Cement Association is a professional organization based in Skokie, IL. The non-profit company's description is simply stated as a professional organization.