Insights

Strong Project Portfolio Stronghold Engineering's extensive experience in high-profile ground-up facilities, seismic upgrades, and complex renovations presents opportunities to partner with large organizations seeking reliable construction and engineering services for large-scale projects.

Recognition & Credibility Their multiple awards and recognitions, including Best Contractors to Work For and ABC Accredited Quality Contractor, enhance their credibility and can be leveraged in marketing efforts to attract new clients seeking reputable contractors with proven safety and quality standards.

Market Focus & Certifications Certified as a WBENC and MBE/WBE company, Stronghold appeals to government agencies and corporations prioritizing diversity, inclusion, and supplier diversity, creating opportunities to qualify for contracts that favor certified diverse suppliers.

Financial Strength With revenues between $50 million and $100 million and a history of projects exceeding $2.5 billion, the company's financial stability and capacity for large projects make it a strong partner for clients with significant infrastructure and civil needs.

Technological & Industry Trends Utilization of modern tech stacks like MySQL, PHP, and web optimization tools indicates a focus on efficiency and innovation, positioning Stronghold as a forward-thinking partner able to adapt to industry technological advancements and smart project management.

Similar companies to Stronghold Engineering

Stronghold Engineering Tech Stack

Stronghold Engineering uses 8 technology products and services including Gravatar, WordPress, Google Fonts API, and more. Explore Stronghold Engineering's tech stack below.

  • Gravatar
    Audio, Video, Graphics
  • WordPress
    Content Management System
  • Google Fonts API
    Font Scripts
  • jQuery Migrate
    Javascript Libraries
  • Jobsite
    Job Board Software
  • Flywheel
    Platform As A Service
  • UIKit
    UI Frameworks
  • GoDaddy
    Web Hosting

Media & News

Stronghold Engineering's Email Address Formats

Stronghold Engineering uses at least 2 format(s):
Stronghold Engineering Email FormatsExamplePercentage
FirstL@teamsei.comJohnD@teamsei.com
68%
Last@teamsei.comDoe@teamsei.com
20%
First@teamsei.comJohn@teamsei.com
4%
LF@teamsei.comDJ@teamsei.com
2%
FLast@teamsei.comJDoe@teamsei.com
2%
FL@teamsei.comJD@teamsei.com
2%
FirstLast@teamsei.comJohnDoe@teamsei.com
2%
FirstL@strongholdengineering.comJohnD@strongholdengineering.com
97%
F.Last@strongholdengineering.comJ.Doe@strongholdengineering.com
3%

Frequently Asked Questions

Where is Stronghold Engineering's headquarters located?

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Stronghold Engineering's main headquarters is located at 150 West Walnut Avenue Perris, California 92571 United States. The company has employees across 3 continents, including North AmericaAsiaAfrica.

What is Stronghold Engineering's phone number?

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You can contact Stronghold Engineering'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 Stronghold Engineering's official website and social media links?

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Stronghold Engineering's official website is strongholdengineering.com and has social profiles on LinkedIn.

How much revenue does Stronghold Engineering generate?

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As of March 2026, Stronghold Engineering's annual revenue is estimated to be $50M.

What is Stronghold Engineering's SIC code NAICS code?

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Stronghold Engineering's SIC code is 1611 - Highway and Street Construction, Except Elevated Highways NAICS code is 23 - Construction.

How many employees does Stronghold Engineering have currently?

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As of March 2026, Stronghold Engineering has approximately 114 employees across 3 continents, including North AmericaAsiaAfrica. Key team members include President Principal Engineer: M. A.Owner: E. K.Controller: C. B.. Explore Stronghold Engineering's employee directory with LeadIQ.

What industry does Stronghold Engineering belong to?

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Stronghold Engineering operates in the Construction industry.

What technology does Stronghold Engineering use?

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Stronghold Engineering's tech stack includes GravatarWordPressGoogle Fonts APIjQuery MigrateJobsiteFlywheelUIKitGoDaddy.

What is Stronghold Engineering's email format?

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Stronghold Engineering's email format typically follows the pattern of FirstL@teamsei.com. Find more Stronghold Engineering email formats with LeadIQ.

When was Stronghold Engineering founded?

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Stronghold Engineering was founded in 1991.

Stronghold Engineering

ConstructionCalifornia, United States51-200 Employees

Stronghold Engineering (SEI) is an award-winning design and construction firm specializing in renowned projects for some of the nation’s largest organizations.  Throughout our 32-year history, we have designed and constructed high profile ground up facilities, technically challenging repair and renovations for historical and non-historical facilities, and significant seismic upgrades, as well as large civil, infrastructure, and electrical projects exceeding $2.5 billion in construction cost.

SEI was founded in 1991 by owners Beverly and Scott Bailey. With a vision of becoming a reliable and reputable electrical contractor, a dream that started from their kitchen table with a handful of employees and clients, has grown exponentially to encompass General Contracting, Design and Electrical trades.  As a notable contractor in the construction, engineering and design-build industry, they have completed hundreds of projects ranging from renovation and new construction, to renewable energy and electrical contracting for numerous civic, private and governmental agencies over the course of their 32-year history. Their company has been recognized repeatedly with outstanding performance evaluations and national design and construction awards from DBIA, AGC, ENR and ABC, pointing to their commitment to quality, craftsmanship and safety. Stronghold prides themselves on an outstanding safety record and the ability to self-perform significant features of work on projects.  Furthermore, they are a WBENC and MBE/WBE Certified Company.

Section iconCompany Overview

Headquarters
150 West Walnut Avenue Perris, California 92571 United States
Phone number
SIC Code
1611 - Highway and Street Construction, Except Elevated Highways
NAICS Code
23 - Construction
Founded
1991
Employees
51-200

Section iconFunding & Financials

  • $50M$100M

    Stronghold Engineering's revenue is estimated to be in the range of $50M$100M

Section iconFunding & Financials

  • $50M$100M

    Stronghold Engineering's revenue is estimated to be in the range of $50M$100M

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