Company Profile

Day & Zimmermann is a century-old, family-owned company specializing in construction & engineering, staffing and defense—for leading corporations and governments around the world.

Chairman & CEO: Harold L. Yoh III

Annual Revenue: $2.4 Billion

Global Workforce: Over 42,000

Headquarters: 1500 Spring Garden Street, Philadelphia, PA 19130

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Key Facts:

  • Founded in 1901
  • Ranked #179 on Forbes Top Private Companies list
  • Our customer promise: We do what we say.®
  • Our vision is to be the most admired company in the markets we serve because our employees deliver on our promises every time
  • Our company values include safety, integrity, diversity and success