N.J. Sullivan Company, Inc.

Established in 1958, N.J. Sullivan Company, Inc. is an American manufacturer specializing in custom metal fabrication and electrical products for critical infrastructure applications. Based in Manassas, Virginia, the company operates a modern manufacturing facility of approximately 81,000 square feet, combining advanced engineering, design, fabrication, machining, finishing, welding, and assembly capabilities. N.J. Sullivan manufactures custom electrical enclosures, CT cabinets, termination cabinets, bussed troughs and gutters, safety disconnect switches, junction boxes, and other specialized utility products. Its comprehensive manufacturing capabilities enable customers to manage complex projects through a single experienced supplier while maintaining quality, efficiency, and short lead times. The company serves diverse industries including data centers, utilities, aerospace and defense, renewable energy, and water and wastewater treatment. With more than six decades of manufacturing experience, N.J. Sullivan continues to combine American craftsmanship, modern technology, engineering expertise, and responsive customer service to deliver reliable, precision-engineered solutions tailored to demanding industrial requirements.