Insights

Comprehensive Service Offerings Siegfried's multidisciplinary approach combining civil engineering, structural design, landscape architecture, and planning positions them as a one-stop solution provider for complex projects, appealing to clients seeking integrated engineering services.

Strategic Regional Presence With a strong footprint in northern and central California and recent international expansion with offices in Switzerland, Siegfried is well-positioned to pursue projects both domestically and globally, opening opportunities across diverse markets.

Public Sector Collaboration Recent partnerships with Oakland Unified School District, Sacramento State University, and the City of Ripon highlight Siegfried's expertise in community-focused projects, indicating potential growth in public infrastructure, educational, and municipal contracts.

Technology Adoption Utilizing a modern tech stack including analytics, website optimization, and digital tools demonstrates Siegfried's commitment to innovative project delivery, which can be leveraged to target clients seeking advanced engineering solutions.

Financial Outlook With revenues estimated between 10 to 25 million dollars and a lean employee base, Siegfried offers opportunities for tailored, high-value projects, particularly for clients interested in boutique firms with experienced multidisciplinary teams capable of managing complex projects efficiently.

Siegfried Tech Stack

Siegfried uses 8 technology products and services including WP Rocket, CIM Technologies, CookieYes, and more. Explore Siegfried's tech stack below.

  • WP Rocket
    Caching
  • CIM Technologies
    Cad & Graphics
  • CookieYes
    Cookie Compliance
  • Google Fonts API
    Font Scripts
  • Flickity
    Javascript Libraries
  • Modernizr
    Javascript Libraries
  • MediaElement.js
    Video Players
  • Google Analytics
    Web Analytics

Media & News

Siegfried's Email Address Formats

Siegfried uses at least 1 format(s):
Siegfried Email FormatsExamplePercentage
FLast@siegfriedeng.comJDoe@siegfriedeng.com
50%
FLast@siegfriedeng.comJDoe@siegfriedeng.com
50%

Frequently Asked Questions

Where is Siegfried's headquarters located?

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Siegfried's main headquarters is located at 3428 Brookside Road Stockton, California 95219 United States. The company has employees across 3 continents, including North AmericaSouth AmericaEurope.

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.

How much revenue does Siegfried generate?

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As of February 2026, Siegfried's annual revenue is estimated to be $3.6M.

What is Siegfried's SIC code NAICS code?

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

How many employees does Siegfried have currently?

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As of February 2026, Siegfried has approximately 74 employees across 3 continents, including North AmericaSouth AmericaEurope. Key team members include Vice President Structural: T. L.Accounting Manager: T. N.Accounting Manager: C. V.. 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 WP RocketCIM TechnologiesCookieYesGoogle Fonts APIFlickityModernizrMediaElement.jsGoogle Analytics.

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

Civil EngineeringCalifornia, United States51-200 Employees

Siegfried, established in 1955, is recognized as one of the foremost multidisciplinary design and engineering firms in northern and central California.  We solve our clients' toughest challenges, making complex projects not only manageable but truly successful. Our innovative approach and technical expertise continue to shape the success of communities and businesses throughout the region and beyond.

At Siegfried we take a true multidisciplinary approach to civil engineering, structural engineering, landscape architecture, architecture, surveying, and planning which gives our Clients the efficiency of a full service firm with a depth of knowledge unmatched in the industry.

Section iconCompany Overview

Headquarters
3428 Brookside Road Stockton, California 95219 United States
Phone number
SIC Code
8711 - Engineering Services
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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