Locations

Corporate Contact Information

  • 1500 Spring Garden Street
    Philadelphia, PA 19130
    215.299.8000

Apply For a Job

  • Visit our Career Center for a complete listing of available positions and to upload your candidate profile.

Become a Day & Zimmermann Supplier:

  • Visit our Suppliers page to register your company with our Purchasing Department.

Media Relations

Business Unit Contact Information 

Engineering, Construction & Maintenance

Engineering and Construction

866.542.2028, 125 The Parkway, Suite 400, Greenville, SC 29615 engineeringconstruction@dayzim.com

713.290.0613, 363 N. Sam Houston Parkway, Suite 900, Houston, TX 77060

484.768.3800, 2501 Seaport Drive, Suite 200, Chester, PA 19013

Day & Zimmermann NPS

         

717.481.5600, 1827 Freedom Rd., Suite 101, Lancaster, PA 17601

304.757.3703, 4 Mission Way, Scott Depot, WV 25560

Day & Zimmermann Open Shop

 

918.743.4366, 5800 Skelly Drive, Suite 800, Tulsa, OK 74135

 

623.687.2024, 1626 Litchfield Road, Suite 330, Goodyear, AZ 85395

 

972.473.2727, 5500 Democracy Drive, Suite 140, Plano, TX 75024

 

Brian Hartz, Sr. VP, Business Development, brian.hartz@dayzim.com

 

Munitions

(Munitions, Security, Logistics, Base Operations, Program Management)
215.299.8000
1500 Spring Garden Street, Philadelphia, PA 19130

American Ordnance:
Iowa Army Ammunition Plant, 17575 Hwy 79, Middletown, IA 52638
Kansas LLC:
620.421.7400, 23018 Rooks Rd., Suite A, Parsons, KS 67357
Lone Star LLC:
903.334.1410, Highway 82 West, Texarkana, TX 75501

Paul Heidenreich, SVP, paul.heidenreich@aollc.biz
 

Government AEC (Architecture, Engineering and Construction)
859.252.9980
300 W. Vine Street, Suite 1300, Lexington, KY 40507

Ron Smith, PE, VP Architecture/Engineering
ron.smith@masonandhanger.com 
Stephen Scott, Executive Director
stephen.scott@masonandhanger.com 
Tamara Dean, Marketing Manager
tammy.dean@masonandhanger.com

 

Workforce Solutions (Yoh)
800.654.5911
1500 Spring Garden Street, Philadelphia, PA 19130

For detailed office information, visit the
Contact Yoh page on yoh.com.