What are the opening hours?

Monday 8:30am - 5pm Tuesday 8:30am - 5pm Wednesday 8:30am - 5pm Thursday 8:30am - 5pm Friday 8:30am - 5pm

Day & Zimmermann

Name: Day & Zimmermann
Address: 1835 Market Street, Philadelphia, PA, 19103, US
Telephone: +12152998000

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Day & Zimmermann

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Day & Zimmermann is a family-owned company founded over a century ago.

We specialize in construction & engineering, staffing and defense -- helping leading corporations and governments make the world a better place. Day & Zimmermann is a century-old family-owned company specializing in construction & engineering, staffing and defense -- for leading corporations and governments around the world.

10/28/2026

From building critical infrastructure and supporting national defense, to putting people to work and delivering solutions that power communities, Day & Zimmermann has long been a committed partner to the United States. We’ve helped protect freedoms, fuel progress, and support the customers who improve the world around us, always guided by a simple promise: We do what we say®.

10/27/2026

Day & Zimmermann colleagues came together for the 2026 Philadelphia Heart Walk on Saturday, October 24, to support the American Heart Association.

On a beautiful fall day, our team connected with the community, took meaningful steps toward a healthier future and helped support lifesaving research. Thank you to everyone who walked, donated and showed their support!

It’s not too late to make a difference – consider donating to one of Day & Zimmermann’s teams to support the American Heart Association’s ongoing efforts to advance heart health and lifesaving research. https://www2.heart.org/site/TR?company_id=555553&pg=company&fr_id=13190

10/23/2026

Build your engineering career in a collaborative environment at D&Z.

For Len Rader, Engineering Manager, one of the most rewarding parts of engineering is being part of a team that works together to solve difficult problems and deliver safe, high-quality products.

At D&Z, engineers collaborate across disciplines, apply their expertise and support work that impacts our nation and its warfighters.

Ready to contribute your skills to meaningful engineering work? Explore open positions at D&Z: https://www.dayzim.com/careers

*****ns

10/22/2026

This Saturday, the Day & Zimmermann team is heading to Citizens Bank Park for the annual Philadelphia Heart Walk supporting the American Heart Association.

We are proud to walk together to support critical cardiovascular research, promote healthier habits, and help ensure more lives can be saved through CPR education.

Let’s make every step count for a healthier community! Join or support Team D&Z here: https://www2.heart.org/site/TR?fr_id=13190&pg=informational&sid=1020

10/16/2026

That’s a wrap on Association of the United States Army - AUSA National ! 🇺🇸

The D&Z Mu*****ns and Government Services teams were proud to exhibit this week, connect with industry partners, engage with customers, and share how we support the mission through our products, services, and expertise.

Thank you to everyone who stopped by, shared insights, and took the time to connect with our team. We appreciate the conversations and look forward to building on the relationships made throughout the week!

10/16/2026

Day & Zimmermann is proud to support organizations that give back and help develop the next generation of skilled professionals! That is why we were especially excited to be part of the Alltricity Network Fall Convention in San Antonio, which raised approximately $32,000 for student scholarships.

The convention was also a great opportunity to connect with utilities, strengthen relationships, and discuss how D&Z support customers across the full lifecycle of thermal generation. Thank you to Ken Wilmot and the entire Alltricity team for organizing another successful event.

Learn more about D&Z’s fossil capabilities: https://www.dayzim.com/services-and-products/maintenance-construction/fossil

10/16/2026

Fallon job seekers, join our team!

Day & Zimmermann will be at the EmployNV Career Hub on Wednesday, October 21. Stop by to ask questions, meet our Talent Acquisition team and learn about opportunities supporting Hawthorne Army Depot.

Wednesday, October 21
11:00am - 2:00pm
EmployNV Career Hub, Fallon 121 Industrial Way , Fallon NV 89406

Plan to meet our hiring team. Explore current opportunities at https://jobs.dayzim.com/go/Hawthorne-Careers/9926300/ and take the next step toward joining the mission.

10/15/2026

Three communities. One day. Your opportunity to join the Hawthorne Army Depot.

The Day & Zimmermann team is visiting Yerington, Schurz and Hawthorne on Tuesday, October 20. Choose the location most convenient for you to connect with our team and explore career opportunities supporting Hawthorne Army Depot.

Tuesday, October 20

Yerington
9:30am - 12:30pm
Yerington Library, 20 Nevin Way, Yerington, NV 89447

Schurz
2:00pm - 3:00pm
Walker River Paiute Tribe Administration Office, 1022 Hospital Rd., Schurz, NV 89427

Hawthorne
5:00pm - 7:00pm
CCTLC, 410 E Street, Hawthorne, NV 89415

Find the event nearest you and plan to attend. Visit https://jobs.dayzim.com/go/Hawthorne-Careers/9926300/ to learn more before the event.

10/14/2026

Thank you The Construction Users Roundtable (CURT) for hosting Day & Zimmermann at the October Solutions Summit in Charlotte!

Karin Stoner shared her projects expertise as part of the Contractor Roundtable and Patrick Phister offered insight on the AI in Construction panel.

Given today’s complex, large-scale projects, it’s essential for industry leaders to connect and exchange best practices on the collaboration, planning, ex*****on, and use of AI that make construction projects successful.

Put our construction expertise to work on your next project. Learn more:

https://www.dayzim.com/services-and-products/fossil-gas-construction-projects.

10/13/2026

We are live at the Association of the United States Army - AUSA National Annual Meeting and Exposition in Washington, DC! Stop by Booth 2539 in Hall B to learn more about how our Mu*****ns and Government Services teams can help with your upcoming projects.

Address

1835 Market Street
Philadelphia, PA
19103

Opening Hours

Monday	8:30am - 5pm
Tuesday	8:30am - 5pm
Wednesday	8:30am - 5pm
Thursday	8:30am - 5pm
Friday	8:30am - 5pm

Telephone

+12152998000

Website

http://www.dayzim.com/

Alerts

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