Interstate Equipment Corporation designs, engineers, and constructs barge-handling and bulk-material conveyance equipment, with roots in a patented continuous aerial tramway design for mining operations. The Pittsburgh company has operated continuously since 1903 and is a third-generation, family-owned and operated business. Its engineered systems are used at inland river and port facilities, as well as in mining and other bulk-material industries.
ANSI requirements (portable barge access ladder)
Compliance program
OSHA requirements (portable barge access ladder)
Compliance program
ASGCOFamily leadership has remained at the center of ASGCO since Alfred S. Gibbs and his son Todd founded the Pennsylvania company in 1971. Now led by third-generation president Aaron Gibbs, the privately held manufacturer helps bulk-material handling customers keep conveyor systems safer and more productive through engineered equipment, in-house fabrication, and field support around the world.HARPER, WV
Patterson ManufacturingOperating on Pittsburgh’s Monongahela River since 1858, Patterson Manufacturing is a long-established, safety-focused industrial maker whose Pittsburgh headquarters remains under third-generation family leadership. The company is known for thoroughly tested equipment for heavy-duty towing and lifting operations, with designs shaped around operator safety, lower maintenance, and customers’ specific working conditions. Patterson is ISO 9001:2015 certified.333923PITTSBURGH, PA
Bohl CompaniesFounded by Henry Bohl in 1924, Bohl Companies designs and supplies material-handling equipment, from industrial cranes and custom lifting devices to forklift equipment and support services. Its three divisions—Bohl Crane, Bohl Equipment and Bohl Machine—combine in-house engineering and manufacturing with regional service coverage. Bohl Equipment is one of the oldest family-owned material-handling dealerships in the United States, while Bohl Machine has focused on custom lifting applications since 1987.TOLEDO, OH
Thomas & Muller Systems LtdFounded in 1945 by Thomas Folger Thomas I, Thomas & Muller Systems Ltd. is a family-operated company now overseen by the third generation, with a fourth generation serving as an apprentice. From its Pennsylvania base, the company draws on more than 70 years of hands-on experience to engineer custom mechanical bulk-material handling equipment for challenging industrial applications, while also helping customers improve or repair existing systems.RED HILL, PA