Member Directory

Day & Zimmermann

1500 Spring Garden Street
Philadelphia, PA 19130

Main Contact: Mr. Harold L. Yoh, III

Business Description:

Industrial, defense and workforce solutions including engineering, construction, plant maintenance, staffing, munitions & government services

Business Type:

Business Information:

  • Established in 1901
  • Family Owned Business
  • Privately Owned
  • Member Since 1947

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