Insights

Strong Regional Presence Siegfried has established itself as a leading multidisciplinary civil engineering firm in northern and central California, offering comprehensive services that appeal to local government agencies, educational institutions, and community projects seeking integrated design solutions.

Strategic Expansions The recent expansion of offices in Switzerland indicates a commitment to global growth and diversification, opening opportunities to serve international clients and large-scale projects across different regions and markets.

Diverse Project Portfolio With successful partnerships with school districts, city governments, and university systems, Siegfried demonstrates versatility and experience in delivering large-scale infrastructure, recreational, and community development projects—ideal for clients seeking turnkey solutions.

Financial Scalability With revenues between 10 million and 25 million dollars, Siegfried presents a stable financial profile with potential for growth, especially through expanding client partnerships in urban development, educational infrastructure, and public works segments.

Technology Adoption Utilizing modern web and design technologies, Siegfried shows a focus on innovative project delivery and client engagement, which can be leveraged to provide cutting-edge, sustainable solutions and enhance project management efficiencies for prospective clients.

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

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 December 2025, 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 December 2025, Siegfried has approximately 75 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

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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