Insights

Strong Industry Presence Day & Zimmermann operates in the construction sector with a diverse portfolio spanning engineering, maintenance, staffing, and defense solutions, serving leading corporations and government clients worldwide. Their extensive experience and large workforce position them as a reliable partner for complex, large-scale projects.

Recent Leadership Promotions The company’s recent executive appointments, including promoting Jason Dunaway to President of D&Z Maintenance and Construction and hiring Jeremiah Jorgensen as president of American Ordnance, highlight strategic leadership expansions. These transitions suggest new growth initiatives and operational focus areas open for collaboration or targeted service offerings.

Recognition & Credibility Day & Zimmermann has received multiple industry recognitions, including top honors as a top international design firm and inclusion in the Top Solar Contractors list. These accolades showcase their expertise and credibility in innovative and sustainable construction, indicating potential opportunities in green energy and advanced infrastructure projects.

Financial Capacity With annual revenues between 1 billion and 10 billion USD and a large employee base exceeding 1,000 staff, the company possesses substantial financial and operational capacity for large-scale projects. This financial strength supports complex project engagements and long-term partnerships for vendors and service providers.

Expanding Service Scope Day & Zimmermann’s expanding focus on specialized sectors like solar energy and defense indicates ongoing diversification and growth. Businesses offering innovative technologies, sustainable solutions, or security services have a significant opportunity to align with their expanding portfolio.

Day & Zimmermann Tech Stack

Day & Zimmermann uses 8 technology products and services including HubSpot Content Hub, HubSpot, LinkedIn, and more. Explore Day & Zimmermann's tech stack below.

  • HubSpot Content Hub
    Content Management System
  • HubSpot
    Marketing Automation
  • LinkedIn
    Online Community Software
  • HSTS
    Security
  • Google Tag Manager
    Tag Management
  • YouTube
    Video Players
  • X-Content-Type-Options
    Web & Portal Technology
  • HTTP/3
    Web & Portal Technology

Media & News

Day & Zimmermann's Email Address Formats

Day & Zimmermann uses at least 1 format(s):
Day & Zimmermann Email FormatsExamplePercentage
First.Last@dayzim.comJohn.Doe@dayzim.com
88%
Last.First@dayzim.comDoe.John@dayzim.com
6%
Fir.Last@dayzim.comJoh.Doe@dayzim.com
4%
First.L@dayzim.comJohn.D@dayzim.com
2%

Frequently Asked Questions

Where is Day & Zimmermann's headquarters located?

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Day & Zimmermann's main headquarters is located at 1500 Spring Garden Street Philadelphia, Pennsylvania 19130 United States. The company has employees across 6 continents, including North AmericaEuropeAsia.

What is Day & Zimmermann's phone number?

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You can contact Day & Zimmermann's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Day & Zimmermann's official website and social media links?

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Day & Zimmermann's official website is dayzim.com and has social profiles on LinkedIn.

How much revenue does Day & Zimmermann generate?

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As of March 2026, Day & Zimmermann's annual revenue is estimated to be $5B.

What is Day & Zimmermann's NAICS code?

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Day & Zimmermann's NAICS code is 23 - Construction.

How many employees does Day & Zimmermann have currently?

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As of March 2026, Day & Zimmermann has approximately 4.2K employees across 6 continents, including North AmericaEuropeAsia. Key team members include Ceo: H. Y.Chief Executive Officer: K. B.Chief Marketing Officer: M. R.. Explore Day & Zimmermann's employee directory with LeadIQ.

What industry does Day & Zimmermann belong to?

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Day & Zimmermann operates in the Construction industry.

What technology does Day & Zimmermann use?

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Day & Zimmermann's tech stack includes HubSpot Content HubHubSpotLinkedInHSTSGoogle Tag ManagerYouTubeX-Content-Type-OptionsHTTP/3.

What is Day & Zimmermann's email format?

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Day & Zimmermann's email format typically follows the pattern of First.Last@dayzim.com. Find more Day & Zimmermann email formats with LeadIQ.

When was Day & Zimmermann founded?

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Day & Zimmermann was founded in 1901.

Day & Zimmermann

ConstructionPennsylvania, United States1001-5000 Employees

When you’ve been around for more than a century, you know a thing or two!  At Day & Zimmermann®, we take our lifetime of experience and make things better!  Our 37,000+ employees help bring big ideas to life every day.  We’re pushing the boundaries of innovation in construction & engineering, operations & maintenance, staffing, and security & defense.  And that’s not all.  Did we mention that we have 900+ workplace locations with $3 billion USD in annual revenue?  Come join our on purpose – We put people to work, we protect American freedoms, and we help our customers power and improve the world.  We do what we say.® http://www.dayzim.com

Section iconCompany Overview

Headquarters
1500 Spring Garden Street Philadelphia, Pennsylvania 19130 United States
Phone number
Website
dayzim.com
NAICS Code
23 - Construction
Founded
1901
Employees
1001-5000

Section iconFunding & Financials

  • $1B$10B

    Day & Zimmermann's revenue is estimated to be in the range of $1B$10B

Section iconFunding & Financials

  • $1B$10B

    Day & Zimmermann's revenue is estimated to be in the range of $1B$10B

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