Insights

Regional expertise Siegfried is a long-standing civil and multidisciplinary engineering firm with multiple Northern California offices (Stockton, Modesto, Sacramento, San Jose, Truckee) and a 70+ year track record, signaling strong local market knowledge and established client networks ripe for expand-and-upserve opportunities.

Service expansion Current service mix includes civil, structural, geotechnical, landscape architecture, surveying, and grants/public outreach, indicating potential for cross-sell across existing clients to broader project scopes such as infrastructure upgrades, campus renovations, and community improvement initiatives.

Public sector focus Active partnerships with school districts and city projects (Oakland Unified School District living schoolyards, Ripon storm pipe repair) suggest ongoing opportunities in municipal and educational sectors for design, retrofit, and resilience projects.

Growth signals Recent hiring and leadership additions, including a Senior Design Engineer and project manager, imply capacity expansion and readiness to take on larger or more complex projects, enabling proactive outreach for larger-scale engagements.

Tech-enabled delivery Adoption of tools like WordPress, Google Tag Manager, Microsoft 365, and Adobe Creative Suite supports efficient marketing, client engagement, and design workflows, enabling scalable proposals and digital collaboration with clients.

Siegfried Tech Stack

Siegfried uses 8 technology products and services including LinkedIn Recruiter, WP Rocket, RISA-3D, and more. Explore Siegfried's tech stack below.

  • LinkedIn Recruiter
    Applicant Tracking Systems
  • WP Rocket
    Caching
  • RISA-3D
    Cad & Graphics
  • RSS
    Content Management System
  • Microsoft 365
    Email
  • ADP
    Human Resource Management System
  • jQuery Migrate
    Javascript Libraries
  • Google Tag Manager
    Tag Management

Media & News

Siegfried's Email Address Formats

Siegfried uses at least 1 format(s):
Siegfried Email FormatsExamplePercentage
FLast@siegfriedeng.comJDoe@siegfriedeng.com
99%
FirstLast@siegfriedeng.comJohnDoe@siegfriedeng.com
1%

Frequently Asked Questions

What is Siegfried's phone number?

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You can contact Siegfried'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 Siegfried's stock symbol?

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Siegfried is a publicly traded company; the company's stock symbol is 0QQO.L.

What is Siegfried's official website and social media links?

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Siegfried's official website is siegfriedeng.com and has social profiles on LinkedIn.

What is Siegfried's NAICS code?

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Siegfried's NAICS code is 237 - Heavy and Civil Engineering Construction.

How many employees does Siegfried have currently?

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As of July 2026, Siegfried has approximately 80 employees across 3 continents, including North AmericaEuropeSouth America. Key team members include Vice President Structural: T. L.Head Of Operational Technology Ds: R. F.Head Data Intelligence And Sap Basis: O. E.. Explore Siegfried's employee directory with LeadIQ.

What industry does Siegfried belong to?

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Siegfried operates in the Civil Engineering industry.

What technology does Siegfried use?

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Siegfried's tech stack includes LinkedIn RecruiterWP RocketRISA-3DRSSMicrosoft 365ADPjQuery MigrateGoogle Tag Manager.

What is Siegfried's email format?

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Siegfried's email format typically follows the pattern of FLast@siegfriedeng.com. Find more Siegfried email formats with LeadIQ.

When was Siegfried founded?

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Siegfried was founded in 1955.
Siegfried logo

Siegfried

Civil EngineeringCalifornia, United States51-200 Employees

Siegfried is a civil and multidisciplinary engineering firm based in Stockton, California, with additional offices in Modesto, Sacramento, San Jose, and Truckee. For more than seven decades, the company has provided a range of services that include civil, structural, geotechnical, landscape architecture, surveying, and grants and public outreach, applying technical expertise and creative problem solving to complex projects. The firm works to support the growth and resilience of communities and businesses throughout Northern and Central California, delivering solutions that address infrastructure, development, and public-facing needs. Its regional focus and varied practice areas position Siegfried as a comprehensive design partner for public and private sector clients navigating from concept through implementation.

Section iconCompany Overview

Phone number
Stock Symbol
0QQO.L
NAICS Code
237 - Heavy and Civil Engineering Construction
Founded
1955
Employees
51-200

Section iconFunding & Financials

  • $10M$25M

    Siegfried's revenue is estimated to be in the range of $10M$25M

Section iconFunding & Financials

  • $10M$25M

    Siegfried's revenue is estimated to be in the range of $10M$25M

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