E & H Manufacturing, Inc.

E & H Manufacturing, Inc. is a premier American contract manufacturer and OEM specialist based in Charleston, West Virginia. Established in 1975, the company brings over 100 years of combined expertise to the production of heavy industrial equipment, primarily serving the oil and gas, construction, timber, agricultural, and government sectors. As an ASME-certified facility holding U-Stamp and National Board R-Stamp qualifications, the company has manufactured and registered over 8,000 pressure vessels since 1992. The company's extensive product portfolio includes custom-built ASME pressure vessels, aboveground steel storage tanks, and specialized oilfield equipment such as pumpjacks, inline gas heaters, skid-mounted gas production units, desiccant dryers, and coalescing filters. Beyond metal fabrication, E & H Manufacturing is a notable provider of stress-laminated timber bridges. These bridges are engineered to AASHTO HS-20 specifications with up to 40-ton weight capacities, available for both permanent installation and temporary lease. Operating with a workforce of approximately 11 to 50 employees, the company maintains comprehensive in-house capabilities including steel fabrication, precision machining, welding, hydraulics, and electrical engineering. This technical breadth allows them to offer full-scale industrial design services, transforming complex customer requirements into economical, high-quality solutions. All products are proudly made in the USA, reflecting the company's commitment to uncompromising integrity and best practices in manufacturing.