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Who We Are
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Harold L. Yoh, III
Kathleen King
Lisa Ann Cooney
Sankara Viswanathan
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Mike Yoh
BG (Ret) John J. McGuiness
Doug Magee
John McCormick
Emmett McGrath
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Record Diesel Generator Rebuild Project
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D&Z Excels on Large Boiler Project
One Year Later: Partnership Continues to Grow Stronger
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Design of Top U.S. Law Enforcement and National Security Training Complex
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Integrated Security for One of the Largest U.S. Embassies in the World
Ordnance Operations, Management & Operations (M&O) and Security for Largest Global R3 Demilitarization Complex
Cleared IT Support for Critical Infrastructure Communications to Unites States Navy & Marine Corps
Secured Renewed U.S. Diplomatic Presence in High Threat Region of Africa
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Yoh.com
Get Hired
Get Talent
DZConneX.com
Careers
Why Work at D&Z
How We Hire
Our People
Director of Operations
Director, Talent Sourcing & Recruiting
Senior Manager, Client Services
Senior Mechanical Engineer
Director, Compliance & Training / Ethics Officer
Senior Director of Client Services
Contracts Administrator
Deputy Program Manager
QC, Training Coordinator
Production Operator
Head Chef
Test Range, Supervisor
Recruitment Process Outsourcing
Senior Plans Analyst, Plans & Operations
Quality Engineer Intern – Medium Caliber and Direct Fire Business Units
Diversity & Inclusion
Veteran's Resources
Our Values
Success Stories
Join Us
Professional Opportunities
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News: Day & Zimmermann NewsFeatured Stories
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12.19.2024
Day & Zimmermann Joins Texas Nuclear Alliance as Founding Member
As part of our commitment to a more sustainable future, Day & Zimmermann (D&Z) is honored to have joined the Texas Nuclear Alliance (TNA) as ...
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12.10.2024
Day & Zimmermann and Canada-based Nawash Utilities Collaborate Under Teaming Agreement
PHILADELPHIA, PA., Dec. 10, 2024 — Day & Zimmermann’s Maintenance and Construction division announced a collaboration with Canada-based Nawash ...
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12.4.2024
Success in Every Action The DZ Way
At Day & Zimmermann, our values, our innovation, and our collaboration are the foundation for our success. They guide us in achieving milestones, ...
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11.27.2024
Thanksgiving and Living Our Brand Promise
Thanksgiving in the US is a time for gratitude, family and reflecting on the year that is quickly coming to a close, and perhaps the year ahead. I ...
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11.22.2024
Embracing Difficulty to Turn Big Ideas into Transformative Reality
“We do hard things” could be the motto for Day & Zimmermann’s Maintenance and Construction (DZMC) division.
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11.21.2024
Day & Zimmermann Honored with Construction Industry Safety Excellence Award
PHILADELPHIA, PA., Nov. 21, 2024 — The Construction Users Roundtable (CURT) presented Day & Zimmermann’s (D&Z) Maintenance and Construction ...
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11.18.2024
Accountability for Accessibility Is Everyone’s Responsibility
Day & Zimmermann's Abled and DisAbled Advocates Partnering Together (ADAPT) employee resource group hosted a virtual webinar on November 13th, ...
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9.17.2024
ENR has ranked Day & Zimmermann among the Top 225 International Design Firms for 2024
Day & Zimmermann (D&Z), the century-old, family-owned provider of construction, engineering, maintenance, staffing and defense solutions for ...
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9.13.2024
The Power of Value Engineering to Enhance Services and Savings in Solar Field Design
Value engineering first emerged during World War II when material and labor shortages drove General Electric to pursue innovative solutions. Today, ...
Read More
8.30.2024
Appreciating All Hard-Working Americans
Labor Day in the US is a time for celebrating the hard-working women and men who built our country and continue to move us forward. When we think of ...
Read More
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