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Founded in 1901, Day & Zimmermann is a family-owned company with a workforce of over 43,000 specializing in construction, maintenance, engineering, staffing and defense solutions for leading corporations and governments around the world. Headquartered in Philadelphia, PA, our first work was to develop "Betterment Reports" that helped modernize American factories. Today, we are still in the business of Betterment: maintaining the nation's power infrastructure, putting people to work, protecting American freedoms and driving technological advancements for our customers around the world.
- Industry
- Professional Services
- Founded
- 1930
- Headquarters
- Philadelphia, Pennsylvania
- Country/Territory
- United States
- Chair and CEO
- Hal Yoh
- Employees
- 40,000