Insights

Industry Leadership Day & Zimmermann's extensive experience and large workforce of over 10,000 employees position it as a leader in the construction and engineering sectors, offering opportunities to collaborate on complex, high-profile projects.

Financial Scale With annual revenues ranging between one and ten billion dollars, the company demonstrates substantial financial stability, making it a viable partner for large-scale projects and long-term service agreements.

Technological Adoption Utilizing modern digital tools such as HubSpot and Google Tag Manager, Day & Zimmermann shows an openness to integrating innovative technologies, which suggests potential for partnerships involving advanced construction and maintenance solutions.

Growth and Recognition Recent awards and leadership promotions, including top honors and executive hires in defense and international design, indicate a company focused on strategic growth and expanding its service portfolio, opening avenues for new project collaborations.

Market Diversification Recognition in solar contracting and international design firms highlights diversified operations across renewable energy and global markets, presenting sales opportunities in sustainable infrastructure and cross-border construction initiatives.

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, PA 19130, US. 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 October 2025, 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 October 2025, Day & Zimmermann has approximately 10K 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

ConstructionUnited States10001+ 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 43,000+ 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 150+ worldwide locations with $2.6 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, PA 19130, US
Phone number
Website
dayzim.com
NAICS Code
23 - Construction
Founded
1901
Employees
10001+

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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