Company profile
Day & Zimmermann
We do what we say®.
- Industry
- Construction
- Employees
- 4,235
- Headquarters
- Philadelphia, Pennsylvania
- Founded
- 1901
- LinkedIn followers
- 61,121
- Office locations
- 1
Day & Zimmermann company summary
Day & Zimmermann is a company in the Construction industry, headquartered in Philadelphia, Pennsylvania, founded in 1901. On LinkedIn the company has around 4,235 employees and 61,121 followers. Warmrank detected 17 technologies across 12 categories on dayzim.com, including Apple iCloud Mail, Atlassian, Cloudflare. Its listed specialties include Construction, Engineering, Staffing, Security, Defense.
What technology does Day & Zimmermann use?
Warmrank detected 17 technologies on dayzim.com, last checked July 2026. Click any tool to see other companies that use it.
Miscellaneous
HTTP/3
Open GraphAnalytics
Google Analytics
HubSpot AnalyticsSecurity
Cloudflare Bot Management
Apple iCloud Mail
Microsoft 365CDN
Cloudflare
HubSpot CMS HubFont scripts
Font AwesomeJavaScript libraries
jQueryMarketing automation
HubSpotSSL/TLS certificate authorities
Let's EncryptTag managers
Google Tag ManagerVideo players
YouTubeAbout Day & Zimmermann
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
Specialties
Where is Day & Zimmermann located?
Day & Zimmermann lists 1 location.
Compare companies similar to Day & Zimmermann
More companies in Construction.
| Company | Industry | Employees | Founded | Headquarters |
|---|---|---|---|---|
Day & Zimmermann dayzim.com | Construction | 4,235 | 1901 | Philadelphia, Pennsylvania |
 Tata Projects tataprojects.com | Construction | 19,508 | 1979 | Mumbai, Maharashtra |
 Bechtel Corporation bechtel.com | Construction | 33,806 | 1898 | Reston, Virginia |
 ConstructionPlacements Official constructionplacements.com | Construction | 2,761 | - | Pune, Maharashtra |
 Turner & Townsend turnerandtownsend.com | Construction | 18,342 | 1946 | Horsforth, Leeds |
 Fluor Corporation fluor.com | Construction | 36,656 | 1912 | Irving, Texas |
 Kiewit kiewit.com | Construction | 26,397 | 1884 | Omaha, NE |
 Andrade Gutierrez S.A. andradegutierrez.com.br | Construction | 11,888 | - | São Paulo, SP |
 Hill International, Inc. hillintl.com | Construction | 6,989 | 1976 | Mount Laurel, New Jersey |
 Turner Construction Company turnerconstruction.com | Construction | 20,074 | 1902 | New York, NY |
 ALEC Holdings alec.ae | Construction | 12,566 | - | Dubai, Dubai |
Frequently asked questions about Day & Zimmermann
What does Day & Zimmermann do?
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
What technology does Day & Zimmermann use?
Warmrank detected 17 technologies on dayzim.com, including Apple iCloud Mail, Atlassian, Cloudflare, Cloudflare Bot Management, Font Awesome, Google Analytics, Google Tag Manager, HSTS.
How many employees does Day & Zimmermann have?
Day & Zimmermann has around 4,235 employees on LinkedIn.
Where is Day & Zimmermann headquartered?
Day & Zimmermann is headquartered in Philadelphia, Pennsylvania.
When was Day & Zimmermann founded?
Day & Zimmermann was founded in 1901.
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