Insights

Established Market Presence Guardian Security Services has a Strong foothold in the Chicagoland region with nearly 50 years of experience, making it a trusted provider for diverse sectors including commercial, residential, and industrial clients, which can facilitate regional expansion opportunities.

Growth Potential With an annual revenue ranging from 25 million to 50 million and a relatively lean team size of up to 500 employees, there are opportunities to scale operations through enhanced technology integration and service diversification.

Customer-Centric Approach Guardian’s focus on customized, cost-effective security programs and long-term client partnerships highlights a strong emphasis on customer satisfaction, opening doors for tailored service enhancements and cross-selling security solutions.

Digital & Technology Stack Utilizing advanced tools such as Google Ads Conversion Tracking, Cloudflare Bot Management, and Vue.js indicates a commitment to digital innovation, suggesting potential for upselling integrated security technology and cybersecurity solutions.

Competitive Positioning Positioned among notable security providers with comparable firms like Protect America and STANLEY Security, Guardian can leverage its local expertise and personalized service model to differentiate and expand within niche markets or enterprise accounts.

GUARDIAN SECURITY SERVICES, INC Tech Stack

GUARDIAN SECURITY SERVICES, INC uses 8 technology products and services including AdRoll, Google Ads Conversion Tracking, Shopify, and more. Explore GUARDIAN SECURITY SERVICES, INC's tech stack below.

  • AdRoll
    Advertising
  • Google Ads Conversion Tracking
    Analytics
  • Shopify
    E-commerce
  • Font Awesome
    Font Scripts
  • Vue.js
    Javascript Frameworks
  • Windows Server
    Operating Systems
  • Cloudflare Bot Management
    Security
  • 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?

Minus sign iconPlus sign icon
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?

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

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

Minus sign iconPlus sign icon
GUARDIAN SECURITY SERVICES, INC's SIC code is 7381 - Detective, Guard, and Armored Car Services NAICS code is 5616 - Investigation and Security Services.

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

Minus sign iconPlus sign icon
As of April 2026, GUARDIAN SECURITY SERVICES, INC has approximately 231 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?

Minus sign iconPlus sign icon
GUARDIAN SECURITY SERVICES, INC operates in the Security and Investigations industry.

What technology does GUARDIAN SECURITY SERVICES, INC use?

Minus sign iconPlus sign icon
GUARDIAN SECURITY SERVICES, INC's tech stack includes AdRollGoogle Ads Conversion TrackingShopifyFont AwesomeVue.jsWindows ServerCloudflare Bot ManagementVerizon.

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

Minus sign iconPlus sign icon
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?

Minus sign iconPlus sign icon
GUARDIAN SECURITY SERVICES, INC was founded in 1975.

GUARDIAN SECURITY SERVICES, INC

Security and InvestigationsIllinois, United States201-500 Employees

Guardian Security Services, a locally owned security company, was founded by its current management in 1975 and has established itself as the security leader in Chicagoland. We provide customized, cost-effective programs to commercial properties, corporate headquarters, public utilities, residential communities, financial institutions, college campuses, industrial, logistics, manufacturing facilities, and more.

We believe the secret to our success is no secret at all, simply Guardian’s unique combination of:

Employee integrity, quality, professional performance, and overall commitment to excellence.
Client Focus and the recognition that our success begins and ends with satisfied clients.
Partnerships with our clients that are open, honest, mutually beneficial, and long-term business relationships.
Professionalism that provides the highest level of service with integrity.
Benchmarking our services and expertise against industry leaders allows us to continuously raise the bar and strive for excellence in every facet of the industry.

Section iconCompany Overview

Headquarters
3300 West 127th Street Blue Island, Illinois 60406 United States
SIC Code
7381 - Detective, Guard, and Armored Car Services
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

Ready to create more pipeline?

Get a demo and discover why thousands of SDR and Sales teams trust
LeadIQ to help them build pipeline confidently.

© LeadIQ, Inc. All rights reserved.