Insights

Regional Growth Siegfried operates across multiple Northern and Central California locations with a 70-year track record, indicating potential cross-location project opportunities and the ability to scale services regionally for public infrastructure, campuses, and private developments.

Public Sector Wins Recent partnerships with Oakland Unified School District and city projects suggest strong opportunities in education and municipal sectors for landscape architecture, civil, and geotechnical services; target district facilities upgrades and public works programs.

Service Scope Full-suite multidisciplinary offerings—civil, structural, geotechnical, landscape architecture, surveying, and grants/public outreach—enable upsell across project phases, from planning and design to grant support and community engagement.

Sustainability Focus Community resilience and living schoolyards initiatives align with sustainability-driven demand; pursue opportunities in green infrastructure, site revitalization, and climate-adaptation projects across school campuses and municipal facilities.

Strategic Partnerships Ongoing collaborations with universities, cities, and international affiliates (Swiss expansion) indicate a network-ready approach; leverage relationships to win multi-disciplinary projects and establish preferred vendor status for public and private clients.

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Siegfried Tech Stack

Siegfried uses 8 technology products and services including LinkedIn Recruiter, AutoCAD, Sucuri, and more. Explore Siegfried's tech stack below.

LinkedIn Recruiter
Applicant Tracking Systems
AutoCAD
Cad & Graphics
Sucuri
Content Delivery Network
WordPress
Content Management System
Bluebeam
Document Management Systems
Microsoft 365
Email
ADP Workforce Now
Human Capital Management
Microsoft Teams
Team Collaboration

Media & News

Siegfried's Email Address Formats

Siegfried uses at least 2 email formats:

Siegfried Email Formats	Example	Percentage
FLast@siegfriedeng.com	JDoe@siegfriedeng.com	99%
FirstLast@siegfriedeng.com	JohnDoe@siegfriedeng.com	1%

Frequently Asked Questions

What is Siegfried's phone number?

You can contact Siegfried's main corporate office by phone at

+1-209-943-****

. 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?

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

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

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

How much revenue does Siegfried generate?

As of August 2026, Siegfried's annual revenue is estimated to be $10M - $25M.

What is Siegfried's NAICS code?

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

How many employees does Siegfried have currently?

As of August 2026, Siegfried has approximately 82 employees across 3 continents, including North America, Europe and South America. Key team members include Vice President Structural: T. L., Visitador Medico: P. A. M. and : J. B. Explore Siegfried's employee directory with LeadIQ.

What industry does Siegfried belong to?

Siegfried operates in the Civil Engineering industry.

What technology does Siegfried use?

Siegfried's tech stack includes LinkedIn Recruiter, AutoCAD, Sucuri, WordPress, Bluebeam, Microsoft 365, ADP Workforce Now and Microsoft Teams.

What is Siegfried's email format?

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

When was Siegfried founded?

Siegfried was founded in 1955.

Siegfried

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

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

Q: How many employees does Siegfried have currently?

Siegfried has approximately 82 employees.

Q: What technology does Siegfried use?

Siegfried's tech stack includes reCAPTCHA, Trimble Business Center, Unanet, ADP Workforce Now, Datarails.

Q: What is Siegfried's NAICS code?

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

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.