Insights

Leadership expansion The firm has recently hired senior tunnel engineering and mining leadership, signaling a growth phase and potential for expanded project capacity, larger engagements, and cross-selling across rail, transit, and mining sectors.

Award-winning credibility Recent ITA awards for the Washington Metro Yellow Line Rehabilitation project enhance credibility and can be leveraged to pursue larger public sector tunnel rehabilitation and city-scale infrastructure opportunities.

Global tunneling footprint With over 300 miles of tunneling completed worldwide and a diversified service mix (design through construction support), there are cross-border and multi-region opportunities for turnkey tunnel programs and complex ground-condition projects.

Strategic partnerships Past and ongoing collaborations with major firms and potential for renewed or expanded teaming arrangements can unlock joint bid opportunities, particularly in large-scale rehabilitation, ventilation, lighting, and structural repair programs.

Market focus alignment Strong emphasis on rail, transit, water, and mining projects positions GZ to target infrastructure modernization programs, urban transit upgrades, and underground water/wastewater tunnels in regions investing in resilient civil systems.

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Gall Zeidler Consultants Tech Stack

Gall Zeidler Consultants uses 8 technology products and services including WordPress, Cookie Notice, Cookiebot, and more. Explore Gall Zeidler Consultants's tech stack below.

  • Content Management System
  • Cookie Notice
    Cookie Compliance
  • Cookie Compliance
  • oEmbed
    Dev Tools
  • Font Awesome
    Font Scripts
  • jQuery
    Javascript Libraries
  • Google Analytics
    Web Analytics

Media & News

Gall Zeidler Consultants's Email Address Formats

Gall Zeidler Consultants uses at least 1 email format:
Gall Zeidler Consultants Email FormatsExamplePercentage
FLast@gzconsultants.comJDoe@gzconsultants.com
100%

Frequently Asked Questions

What is Gall Zeidler Consultants's phone number?

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You can contact Gall Zeidler Consultants'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 Gall Zeidler Consultants's official website and social media links?

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Gall Zeidler Consultants's official website is gzconsultants.com and has social profiles on LinkedIn.

How much revenue does Gall Zeidler Consultants generate?

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As of August 2026, Gall Zeidler Consultants's annual revenue is estimated to be $25M - $50M.

What is Gall Zeidler Consultants's SIC code and NAICS code?

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Gall Zeidler Consultants's SIC code is 8711 - Engineering Services and NAICS code is 237 - Heavy and Civil Engineering Construction.

How many employees does Gall Zeidler Consultants have currently?

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As of August 2026, Gall Zeidler Consultants has approximately 51 employees across 5 continents, including North America, Europe and Asia. Key team members include Managing Director: G. R., Owner: K. Z. and Tunneling And Geotechnical Director: H. J. Explore Gall Zeidler Consultants's employee directory with LeadIQ.

What industry does Gall Zeidler Consultants belong to?

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Gall Zeidler Consultants operates in the Civil Engineering industry.

What technology does Gall Zeidler Consultants use?

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Gall Zeidler Consultants's tech stack includes WordPress, Cookie Notice, Cookiebot, oEmbed, Microsoft 365, Font Awesome, jQuery and Google Analytics.

What is Gall Zeidler Consultants's email format?

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Gall Zeidler Consultants's email format typically follows the pattern of FLast@gzconsultants.com. Find more Gall Zeidler Consultants email formats with LeadIQ.

When was Gall Zeidler Consultants founded?

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Gall Zeidler Consultants was founded in 2000.
Gall Zeidler Consultants logo

Gall Zeidler Consultants

Civil EngineeringVirginia, United States51-200 Employees

Gall Zeidler Consultants, based in Ashburn, Virginia, has 25 years of experience delivering tunnel design, geotechnical engineering, rehabilitation, and program and construction management services. The firm has completed more than 300 miles of tunneling projects worldwide and specializes in tackling difficult ground conditions, including shallow overburden, through a combination of dewatering, grouting, and ground freezing, while integrating conventional and mechanical tunneling methods with waterproofing.

Its service scope covers feasibility studies, development of tunnel designs and contract documents, up to construction management and on-site support, serving clients in rail and transit, transportation, power, water and wastewater, and mining sectors. Experts from the firm are frequently invited to participate on expert review panels that influence tunneling practice globally. In October 2025, Gall Zeidler Consultants announced recognition from the International Tunnelling and Underground Space Association for its work on the Washington Metro Yellow Line Rehabilitation Project (ITA Silver Award).

Section iconCompany Overview

Phone number
SIC Code
8711 - Engineering Services
NAICS Code
237 - Heavy and Civil Engineering Construction
Founded
2000
Employees
51-200

Section iconFunding & Financials

  • $25M - $50M

    Gall Zeidler Consultants's revenue is estimated to be in the range of $25M - $50M

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