Day & Zimmermann

Founded in 1901, Day & Zimmermann is a family-owned enterprise specializing in construction, engineering, staffing, and defense solutions for global corporations and governments. With over a century of experience, the company provides value-driven services across diverse sectors, establishing itself as a trusted partner for complex projects. Its expertise supports critical national infrastructure and defense capabilities, reflecting a deep commitment to operational excellence and client success.

Day & Zimmermann operates on a significant scale, with over 10,000 employees distributed across 40 global locations. This broad operational reach facilitates large-scale project execution and localized support. The company's strength is amplified by its skilled workforce; details can be explored at Meet Day & Zimmermann's team. Services encompass vital areas like utility maintenance, nuclear operations, and defense contracting, showcasing their capacity for managing extensive, long-term engagements.

Operating within the Architecture, Engineering & Design and Construction industries, Day & Zimmermann offers extensive products and services, including engineering construction, maintenance, and facility management. These offerings are vital for government and corporate clients needing specialized support for defense systems and infrastructure. Competing with firms like Huntington Ingalls Industries and BrandSafway, Day & Zimmermann demonstrates substantial market presence with a revenue of $3.0B, underscoring its capability in delivering major contracts.