stars 1 stars 2 stars 3

Day & Zimmermann Information

View Top Employees from 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

Website http://www.dayzim.com
Revenue $2.6 billion
Employees 4,159 (2,384 on RocketReach)
Founded 1901
Address 1500 Spring Garden Street, Philadelphia, Pennsylvania 19130, US
Phone (484) 768-3800
Technologies
Industry Construction, Human Resources & Staffing, Communities, Business Services, Community and Lifestyle, Information Technology
Web Rank 469992
Web Visits 64760
Keywords Engineering, Construction, Maintenance, Operations And Maintenance, Project Management, Program Management, Infrastructure, Turnkey Projects, Manufacturing, Design Build, Nuclear, Power, Energy, Procurement, Chemicals, Government Services, Staff Augmentation, Environmental Services, Risk Management, Consulting
Competitors Jacobs, Northrop Grumman, AECOM, TechnipFMC, Fluor Corporation, Honeywell, Bechtel Corporation, KBR, Inc., Lockheed Martin +37 more (view full list)
SIC SIC Code 16 Companies, SIC Code 162 Companies
NAICS NAICS Code 2379 Companies, NAICS Code 237 Companies, NAICS Code 561 Companies, NAICS Code 23799 Companies, NAICS Code 23 Companies, NAICS Code 56 Companies, NAICS Code 237990 Companies

Day & Zimmermann Questions

The Day & Zimmermann annual revenue was $2.6 billion in 2026.

John McCormick is the President Maintenance and Construction of Day & Zimmermann.

2,384 people are employed at Day & Zimmermann.

Day & Zimmermann is based in Philadelphia, Pennsylvania.

The NAICS codes for Day & Zimmermann are [2379, 237, 561, 23799, 23, 56, 237990].

The SIC codes for Day & Zimmermann are [16, 162].

Top Day & Zimmermann Employees

View Similar People

Related Companies

Equinix
14,142
$8.6b
United Nations Population Fund (UNFPA)
8,185
$417.6m
Johns Manville
3,092
$4b
The US Oncology Network
2,370
$2.3b
Marcum LLP
1,405
$1.8b
Kforce Inc
5,019
$1.4b
Terracon
6,474
$1.3b
ABC Supply Co. Inc.
8,670
$18.5b
Packing Corp Of America
305
$8.4b
Taylor Morrison
3,313
$7.8b
Kimley-Horn
9,774
$1.6b
Milliken & Company
4,148
$3.8b
ASRC Federal
4,957
$3b
OneDigital Health and Benefits
3,595
$870.3m
TriNet
4,515
$5.1b
GAF
3,461
$1.1b
Commercial Metals Company
4,725
$7.9b
POWER Engineers
3,864
$724m
AMN Healthcare
10,544
$3b
The Walsh Group - Walsh Construction & Archer Western
4,405
$2.5b
Learn More
How It Works
get free account
Get a Free Account
Sign up for a free account. No credit card required. Up to 5 free lookups.
search page
Search the #1 Contact Database
Get contact details of over 700M profiles across 60M companies – all with industry-leading accuracy. Sales and Recruiter users, try out our Email Finder Extension.
get contact page
Use our AI-Powered Email Finder
Find business and personal emails and mobile phone numbers with exclusive coverage across niche job titles, industries, and more for unparalleled targeting. Also available via our Contact Data API.
G2 Leader Winter 2026 G2 Leader Mid Market Winter 2026 G2 Leader Small Business Winter 2026 G2 Most Implementable Winter 2026 G2 Best Est ROI Mid Market Winter 2026 G2 Leader Momentum Winter 2026 Inc Fastest Growing Private Companies 2026 Inc Best Workplace 2025
g2crowd
G2Crowd Trusted
chromestore
300K+ Plugin Users