Manufacturing Solutions That Power America's Critical Industries

At NJ Sullivan, we deliver the custom and standard enclosures, racks, and structural components that protect critical equipment and infrastructure and form the backbone of America’s most demanding industries. Strategically located in Northern Virginia, we serve as a trusted partner to data centers, utilities, defense contractors, renewable energy providers, and more. Our commitment to quality, rapid response times, and sustainable practices makes us the premier choice for organizations that prioritize precision and reliability.