Day & Zimmermann

    OverviewSuggest Edit

    Day & Zimmermann is a company that specializes in construction and engineering, staffing and defense solutions for global corporations and governments. Its services include construction and maintenance services and solutions, munitions, government and workforce solutions.
    HQPhiladelphia, PA, US
    Employee Ratings3.5
    Overall CultureD-

    Latest Updates

    Job Openings230
    Revenue (Y, 2018)$2.5 B
    Cybersecurity ratingCMore
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    Key People/Management at Day & Zimmermann

    Harold Yoh

    Harold Yoh

    Chair and CEO
    Guy Starr

    Guy Starr

    President, DZ Atlantic
    Michael McMahon

    Michael McMahon

    President, D&Z Maintenance and Construction
    Emmett McGrath

    Emmett McGrath

    President, Yoh
    Mike Yoh

    Mike Yoh

    President, Munitions & Government
    Brian Hartz

    Brian Hartz

    Senior Vice President, Maintenance and Construction Business Development
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    Day & Zimmermann Office Locations

    Day & Zimmermann has offices in Philadelphia, Birmingham, Charlotte, Chester and in 9 other locations
    Philadelphia, PA, US (HQ)
    1500 Spring Garden St #900
    Birmingham, AL, US
    1 Perimeter Park S #300S
    Charlotte, NC, US
    2801 Yorkmont Rd
    Chester, PA, US
    2501 Seaport Dr #200
    Glen Allen, VA, US
    4880 Sadler Rd #300
    Glendale, AZ, US
    6751 N Sunset Blvd
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    Day & Zimmermann Financials and Metrics

    Summary Metrics

    Founding Date

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    Day & Zimmermann Revenue

    Day & Zimmermann's revenue was reported to be $2.5 b in Y, 2018

    Revenue (Y, 2018)

    USDY, 2018E


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    Day & Zimmermann Cybersecurity Score

    Cybersecurity ratingPremium dataset



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    Day & Zimmermann Online and Social Media Presence

    Embed Graph

    Day & Zimmermann Company Culture

    • Overall Culture



    • CEO Rating



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    • Diversity



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    Day & Zimmermann News and Updates

    Anexinet Empowers Day & Zimmermann With New Hybrid Cloud Services

    Digital Transformation Achieves Substantial Savings on a Complex Upgrade Digital Transformation Achieves Substantial Savings on a Complex Upgrade

    Day & Zimmermann Blogs

    Day & Zimmermann Design Listed as Significant Historic Place in Philadelphia

    PHILADELPHIA, PA – December 14, 2021 – Fox Motor Car Company, a property constructed by Day & Zimmermann in 1921, has been listed as a significant historic place by the Philadelphia Historical Commission. Located at 721 West Grange Avenue, it was constructed as a manufacturing site f…

    D&Z's Legacy–120 Years in Business

    2021 has been a remarkable year for Day & Zimmermann in many ways, especially as we mark a historic milestone by celebrating 120 years in business. Since year-end is approaching, I feel that there is no better time to share what this year means to us, and some thoughts on our Day &am…

    ExecutiveBiz Features Steve Selfridge in Executive Spotlight

    AS FEATURED ON EXECUTIVE BIZ,  Steve Selfridge, president of Government Services at Day & Zimmermann, recently spoke with ExecutiveBiz regarding the company’s growth strategies and the expansion of its senior team, recent contract awards, focus areas for D&Z’s tech capabili…

    September 11th – 20 Years Later

    At the 10 year mark, remembering the September 11th terrorist attack in 2011, I had just begun writing blogs to let you hear directly from me. I was only writing occasionally, during the previous couple of years, but this somber anniversary was a time to write and remember. I wrote this …
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    Day & Zimmermann Frequently Asked Questions

    • When was Day & Zimmermann founded?

      Day & Zimmermann was founded in 1999.

    • Who are Day & Zimmermann key executives?

      Day & Zimmermann's key executives are Harold Yoh, Guy Starr and Michael McMahon.

    • How many employees does Day & Zimmermann have?

      Day & Zimmermann has 24,000 employees.

    • What is Day & Zimmermann revenue?

      Latest Day & Zimmermann annual revenue is $2.5 b.

    • What is Day & Zimmermann revenue per employee?

      Latest Day & Zimmermann revenue per employee is $104.2 k.

    • Who are Day & Zimmermann competitors?

      Competitors of Day & Zimmermann include Nelson Engineering, Precision Metrology and Suburban Consulting Engineers.

    • Where is Day & Zimmermann headquarters?

      Day & Zimmermann headquarters is located at 1500 Spring Garden St #900, Philadelphia.

    • Where are Day & Zimmermann offices?

      Day & Zimmermann has offices in Philadelphia, Birmingham, Charlotte, Chester and in 9 other locations.

    • How many offices does Day & Zimmermann have?

      Day & Zimmermann has 13 offices.