Day & Zimmermann's family of companies accelerate customer success by delivering trusted services and products that create a tomorrow that is safer, more secure, more innovative and more productive.
Chairman & CEO: Harold L. Yoh III
Annual Revenue: $1.9 Billion
Employees/Locations: 23,000 employees working in more than 150 worldwide locations
Headquarters Address: 1818 Market Street, Philadelphia, PA 19103
Key Facts
- Ranked one of the largest private companies in America by Forbes.
- Founded in 1901 and headquartered in Philadelphia, PA.
- Recipient of the U.S. National Family Business of the Year Award.
- Completed projects in more than 75 countries.
- Serving more than 1,300 customers worldwide, including more than 45% of the FORTUNE 100.
- Customer promise: We do what we say.
- Vision: to be the most admired company in the markets we serve because our employees deliver on our promises every time.
- Values: Safety. Integrity. Diversity. Success.
Services
Architecture, Engineering & Construction Services: a leading provider of architecture, engineering, procurement and construction services and delivers a wide range of design and planning, design-build, EPC, modular construction, contract maintenance and program management services.
Maintenance & Modification Services: a world leader in providing plant maintenance and modifications as well as speciality equipment repair and support services to industrial, utility and pharmaceutical customers.
Munitions & Government Services: manufactures, stores and demilitarizes ammunition products and provides related services to the United States Departments of Defense and Energy and to United States-approved foreign governments and delivers facilities maintenance services to municipal, state and federal government agencies.
Security Services: a leading supplier of highly technical, sophisticated protective services to government installations, utilities and industrial customers.
Talent & Outsourcing Services: the nation's first technology staffing firm, Yoh provides specialized staffing services to companies that leverage knowledge and technology for competitive advantage.
Validation Services: a leading provider of validation and CIM services to the pharmaceutical and biopharmaceutical industries for customers throughout the United States as well as the Far East, Caribbean, United Kingdom and Europe.