Insights

Diversified Clientele As a locally rooted security leader serving commercial properties, corporate campuses, utilities, residential communities, financial institutions, colleges, and manufacturing sites in Chicagoland, Guardian has opportunities to grow share by expanding tailored security programs and risk assessments within existing accounts and pursuing high-value verticals such as financial services and higher-education.

Custom Program Upsell Guardian's emphasis on customized, cost-effective programs enables upselling expanded services such as security consulting, risk assessments, investigations, managed security services, and integrated guarding solutions aligned to client needs and budgets.

Expansion Opportunities With a strong Chicagoland footprint and long-standing client relationships, there is potential to expand in the metro area and into adjacent sectors like industrial and logistics facilities, financial campuses, and public utilities.

Digital Marketing Readiness Existing tech-enabled marketing stack including LinkedIn, SEO, and digital advertising signals readiness to target security decision-makers and win more RFPs through account-based and content-driven campaigns for priority verticals.

Scalable Offerings Offer a scalable security portfolio that bundles on-site guarding, mobile patrols, risk assessments, investigations, and training to meet mid-market and enterprise needs, enabling easier cross-sell across multiple client types.

GUARDIAN SECURITY SERVICES, INC Tech Stack

GUARDIAN SECURITY SERVICES, INC uses 8 technology products and services including AdRoll, Facebook Pixel, Shopify, and more. Explore GUARDIAN SECURITY SERVICES, INC's tech stack below.

  • AdRoll
    Advertising
  • Facebook Pixel
    Analytics
  • Shopify
    E-commerce
  • Font Awesome
    Font Scripts
  • Vue.js
    Javascript Frameworks
  • LinkedIn
    Online Community Software
  • Yoast SEO
    Search Engines
  • Verizon
    Web Hosting

Media & News

GUARDIAN SECURITY SERVICES, INC's Email Address Formats

GUARDIAN SECURITY SERVICES, INC uses at least 1 format(s):
GUARDIAN SECURITY SERVICES, INC Email FormatsExamplePercentage
First@guardiansecurityinc.comJohn@guardiansecurityinc.com
78%
FLast@guardiansecurityinc.comJDoe@guardiansecurityinc.com
21%
Middle@guardiansecurityinc.comMichael@guardiansecurityinc.com
1%

Frequently Asked Questions

Where is GUARDIAN SECURITY SERVICES, INC's headquarters located?

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GUARDIAN SECURITY SERVICES, INC's main headquarters is located at 3300 West 127th Street Blue Island, Illinois 60406 United States. The company has employees across 5 continents, including North AmericaAfricaAsia.

What is GUARDIAN SECURITY SERVICES, INC's official website and social media links?

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GUARDIAN SECURITY SERVICES, INC's official website is guardiansecurityinc.com and has social profiles on LinkedIn.

What is GUARDIAN SECURITY SERVICES, INC's NAICS code?

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GUARDIAN SECURITY SERVICES, INC's NAICS code is 5616 - Investigation and Security Services.

How many employees does GUARDIAN SECURITY SERVICES, INC have currently?

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As of June 2026, GUARDIAN SECURITY SERVICES, INC has approximately 235 employees across 5 continents, including North AmericaAfricaAsia. Key team members include Chief Executive Officer: O. R.President: W. H.Managing Director And Partner: Z. S.. Explore GUARDIAN SECURITY SERVICES, INC's employee directory with LeadIQ.

What industry does GUARDIAN SECURITY SERVICES, INC belong to?

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GUARDIAN SECURITY SERVICES, INC operates in the Security and Investigations industry.

What technology does GUARDIAN SECURITY SERVICES, INC use?

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GUARDIAN SECURITY SERVICES, INC's tech stack includes AdRollFacebook PixelShopifyFont AwesomeVue.jsLinkedInYoast SEOVerizon.

What is GUARDIAN SECURITY SERVICES, INC's email format?

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GUARDIAN SECURITY SERVICES, INC's email format typically follows the pattern of First@guardiansecurityinc.com. Find more GUARDIAN SECURITY SERVICES, INC email formats with LeadIQ.

When was GUARDIAN SECURITY SERVICES, INC founded?

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GUARDIAN SECURITY SERVICES, INC was founded in 1975.

GUARDIAN SECURITY SERVICES, INC

Security and InvestigationsIllinois, United States201-500 Employees

Guardian Security Services, Inc. is a locally owned security and investigations company based in Blue Island, Illinois. Founded in 1975 by its current management, it provides customized, cost-effective security programs to a broad mix of clients, including commercial properties, corporate headquarters, public utilities, residential communities, financial institutions, college campuses, and industrial and manufacturing facilities. The company serves the Chicagoland area with a focus on tailoring solutions to diverse security needs.

It emphasizes values such as employee integrity, client focus, long-term partnerships, and professionalism in its service delivery. The organization also benchmarks its services against industry leaders to continually raise performance standards.

Section iconCompany Overview

Headquarters
3300 West 127th Street Blue Island, Illinois 60406 United States
NAICS Code
5616 - Investigation and Security Services
Founded
1975
Employees
201-500

Section iconMedia & News

Section iconFunding & Financials

  • $25M$50M

    GUARDIAN SECURITY SERVICES, INC's revenue is estimated to be in the range of $25M$50M

Section iconFunding & Financials

  • $25M$50M

    GUARDIAN SECURITY SERVICES, INC's revenue is estimated to be in the range of $25M$50M

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