D. W. Nicholson is a mechanical, electrical, and structural steel fabrication firm. The Firm's services comprise rigging of heavy equipment, machinery installation, dismantling and relocation, precision alignment and leveling; electrical power and control services; and steel fabrication and installation. Its products include process piping systems for manufacturing and industrial clients, including the chemical food and beverage industries, and water treatment plants; material handling equipment, including conveyors, loading dock equipment, and vertical reciprocating conveyors.