Insights

Diverse Service Portfolio Guard-Systems, Inc. offers a comprehensive range of security solutions including consulting, investigations, concierge services, security surveys, and vulnerability assessments, indicating opportunities to cross-sell customized security packages to various client segments.

Regional Market Presence With a strong presence in the Southwest and recent high-profile contracts such as Lakeside Villas, GSI has demonstrated its ability to secure and expand within local markets, presenting growth potential through targeted regional expansion strategies.

Sustainable Growth Focus The company's emphasis on quality service, cost effectiveness, and reputation-driven growth suggests they are looking for clients that value long-term partnerships, offering opportunities to position high-value, customized services for institutional and commercial clients.

Technology Adoption Utilizing various digital tools and platforms like WordPress, Google Maps, and SEO strategies, GSI shows a commitment to integrating technology for operational efficiency and client engagement, opening avenues for introducing advanced security tech integrations.

Market Competition Competing with large firms like ADT and Allied Universal that have significant workforce sizes and revenues, GSI presents an opportunity to target mid-sized organizations seeking personalized, concierge-style security services and tailored security solutions not always offered by larger providers.

Similar companies to Guard-Systems, Inc.

Guard-Systems, Inc. Tech Stack

Guard-Systems, Inc. uses 8 technology products and services including WordPress, Google Fonts API, Twemoji, and more. Explore Guard-Systems, Inc.'s tech stack below.

  • WordPress
    Content Management System
  • Google Fonts API
    Font Scripts
  • Twemoji
    Font Scripts
  • jQuery Migrate
    Javascript Libraries
  • DataTables
    Javascript Libraries
  • Google Maps
    Maps
  • Yoast SEO
    Search Engines
  • Apache
    Web Servers

Guard-Systems, Inc.'s Email Address Formats

Guard-Systems, Inc. uses at least 1 format(s):
Guard-Systems, Inc. Email FormatsExamplePercentage
FLast@guardsystemsinc.comJDoe@guardsystemsinc.com
45%
First.Last@guardsystemsinc.comJohn.Doe@guardsystemsinc.com
9%
First@guardsystemsinc.comJohn@guardsystemsinc.com
1%
FLast@guardsystemsinc.comJDoe@guardsystemsinc.com
45%

Frequently Asked Questions

Where is Guard-Systems, Inc.'s headquarters located?

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Guard-Systems, Inc.'s main headquarters is located at 1190 Monterey Pass Rd, Monterey Park, CA 91754, US. The company has employees across 3 continents, including North AmericaAfricaAsia.

What is Guard-Systems, Inc.'s phone number?

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You can contact Guard-Systems, Inc.'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 Guard-Systems, Inc.'s official website and social media links?

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Guard-Systems, Inc.'s official website is guardsystemsinc.com and has social profiles on LinkedIn.

How much revenue does Guard-Systems, Inc. generate?

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As of October 2025, Guard-Systems, Inc.'s annual revenue is estimated to be $255M.

What is Guard-Systems, Inc.'s SIC code NAICS code?

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Guard-Systems, Inc.'s SIC code is 7349 - Building Cleaning and Maintenance Services, Not Elsewhere NAICS code is 5616 - Investigation and Security Services.

How many employees does Guard-Systems, Inc. have currently?

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As of October 2025, Guard-Systems, Inc. has approximately 501 employees across 3 continents, including North AmericaAfricaAsia. Key team members include Managing Partner: R. G.Human Resources Benefits Director: L. G.Operations & Compliance Manager: M. M.. Explore Guard-Systems, Inc.'s employee directory with LeadIQ.

What industry does Guard-Systems, Inc. belong to?

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Guard-Systems, Inc. operates in the Security and Investigations industry.

What technology does Guard-Systems, Inc. use?

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Guard-Systems, Inc.'s tech stack includes WordPressGoogle Fonts APITwemojijQuery MigrateDataTablesGoogle MapsYoast SEOApache.

What is Guard-Systems, Inc.'s email format?

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Guard-Systems, Inc.'s email format typically follows the pattern of FLast@guardsystemsinc.com. Find more Guard-Systems, Inc. email formats with LeadIQ.

When was Guard-Systems, Inc. founded?

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Guard-Systems, Inc. was founded in 1956.

Guard-Systems, Inc.

Security and InvestigationsUnited States501-1000 Employees

Guard-Systems, Inc (GSI) has been delivering on our promises since 1956

As a result of this simple philosophy, we have grown to become one of the largest privately held contract security providers in the Southwest.

You can request a Free Security Site Assessment by calling us at (800) 606-6711 or through our website.

This provides you with an independent and objective look at your on-site security from a fresh set of eyes.

GSI specializes in concierge style security services for HOA. Plus customized security solutions for logistics, banking, campus and retail facilities. 

 It Is Our Goal To:

* Provide meaningful employment to our employees and to treat each of our employees as a valuable asset.

* Provide a service of value to our customers through continuous quality improvement, attention to detail and pro-active management.

* Provide a reasonable return to the investment of our board of directors

* Continue to grow through a reputation for quality service and cost effectiveness.

Guard-Systems, Inc. offers a full range of security services including consulting, investigations, concierge services, strike force operations, security surveys, vulnerability assessments and other security related programs.

Section iconCompany Overview

Headquarters
1190 Monterey Pass Rd, Monterey Park, CA 91754, US
Phone number
SIC Code
7349 - Building Cleaning and Maintenance Services, Not Elsewhere
NAICS Code
5616 - Investigation and Security Services
Founded
1956
Employees
501-1000

Section iconFunding & Financials

  • $10M$25M

    Guard-Systems, Inc.'s revenue is estimated to be in the range of $10M$25M

Section iconFunding & Financials

  • $10M$25M

    Guard-Systems, Inc.'s revenue is estimated to be in the range of $10M$25M

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