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Who We Are
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Harold L. Yoh, III
Kathleen King
Lisa Ann Cooney
Sankara Viswanathan
Daniel Ross
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
Recruiting & Workforce Solutions
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
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Our Values
Success Stories
Join Us
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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, ...
Read More
10.7.2024
Why Intersectionality Matters: The Overlapping Identities of LGBTQ+ Employees
None of us are defined by a single identity. Each of us embodies a unique combination of traits—such as race, gender, and sexual orientation—that ...
Read More
9.20.2024
Four Strategies to Bridge Generational Gaps: Perspectives of Young Professionals
At Day & Zimmermann, our Young Professionals Resource Group (YPRG) enhances collaboration across generations through mentorship, coaching, and ...
Read More
9.19.2024
Transforming Government Services in 2024 and Beyond
Maintaining a Focus on Customer, Talent, and Innovation
Read More
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 ...
Read More
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
8.20.2024
White House Appoints Jason Dunaway, Day & Zimmermann President, Union Operations, to Nuclear Working Group
PHILADELPHIA, PA., August 20,2024 — The Biden-Harris Administration has tapped Day & Zimmermann’s (D&Z) Jason Dunaway, President, Union ...
Read More
8.15.2024
Our People: The Power Behind Our Purpose
Our company's purpose – to put people to work, protect our freedoms, and help our clients power and improve the world – is a bold and inspiring ...
Read More
8.8.2024
D&Z Debuts in Solar Power World’s 2024 Top Solar Contractors List
August 8, 2024 — Day & Zimmermann (D&Z) is proud to announce our debut in Solar Power World’s prestigious 2024 Top Solar Contractors List. ...
Read More
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