What is Guardian Security Services, Inc.'s NAICS code?

Guardian Security Services, Inc.'s NAICS code is 5616 (Investigation and Security Services).

Insights

Local security leader Established local presence in Chicagoland with a long history since 1975, indicating strong brand trust and potential for multi-site enterprise security programs across commercial properties, campuses, and critical facilities.

Diverse client base Serves a broad mix of sectors including commercial, corporate, public utilities, residential communities, financial institutions, education, industrial, and logistics, presenting cross-sell opportunities to expand security services within current clients and win new verticals.

Custom programs Focus on customized, cost-effective security solutions suggests opportunity to upsell advanced services such as integrated access control, CCTV, and managed security platforms to meet specific client needs and improve contract value.

Growth signals Revenue in the mid seven figures tier and potential for expansion as the company benchmarks against industry leaders; target growth by pursuing larger enterprise accounts and multi-site deployments in Chicagoland and nearby markets.

Tech-enabled approach Utilizes a modern tech stack and cloud/streamlined tools (Beaver Builder, Cloudflare, WinTeam, Google Maps, etc.), indicating readiness to adopt more advanced security technologies and remote monitoring services to attract tech-savvy buyers.

Similar companies to Guardian Security Services, Inc.

Guardian Security Services, Inc. Tech Stack

Guardian Security Services, Inc. uses 8 technology products and services including Google Ads, Verizon Wireless, Beaver Builder, and more. Explore Guardian Security Services, Inc.'s tech stack below.

Google Ads
Advertising
Verizon Wireless
Communications Technology
Beaver Builder
Content Management System
Cloudflare
Content Management System
WinTeam
Enterprise Resource Planning
Google Maps
Maps
Yoast SEO
Search Engines
Twitter
Widgets

Guardian Security Services, Inc.'s Email Address Formats

Guardian Security Services, Inc. uses at least 1 format(s):

Guardian Security Services, Inc. Email Formats	Example	Percentage
First@guardiansecurityinc.com	John@guardiansecurityinc.com	78%
FLast@guardiansecurityinc.com	JDoe@guardiansecurityinc.com	21%
Middle@guardiansecurityinc.com	Michael@guardiansecurityinc.com	1%

Frequently Asked Questions

What is Guardian Security Services, Inc.'s official website and social media links?

Guardian Security Services, Inc.'s official website is guardiansecurityinc.com and has social profiles on LinkedIn.

How much revenue does Guardian Security Services, Inc. generate?

As of July 2026, Guardian Security Services, Inc.'s annual revenue is estimated to be $25M - $50M.

What is Guardian Security Services, Inc.'s SIC code NAICS code?

Guardian Security Services, Inc.'s SIC code is 4899 - Communications Services, Not Elsewhere Classified NAICS code is 5616 - Investigation and Security Services.

How many employees does Guardian Security Services, Inc. have currently?

As of July 2026, Guardian Security Services, Inc. has approximately 243 employees across 5 continents, including North AmericaAfricaAsia. Key team members include Managing Director And Partner: Z. S.Managing Director: L. C. C. M. U.Security Guard: L. H.. Explore Guardian Security Services, Inc.'s employee directory with LeadIQ.

What industry does Guardian Security Services, Inc. belong to?

Guardian Security Services, Inc. operates in the Security and Investigations industry.

What technology does Guardian Security Services, Inc. use?

Guardian Security Services, Inc.'s tech stack includes Google AdsVerizon WirelessBeaver BuilderCloudflareWinTeamGoogle MapsYoast SEOTwitter.

What is Guardian Security Services, Inc.'s email format?

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?

Guardian Security Services, Inc. was founded in 1975.

Guardian Security Services, Inc.

Q: What technology does Guardian Security Services, Inc. use?

Guardian Security Services, Inc.'s tech stack includes WordPress, Open Graph, MySQL, X-Content-Type-Options, Facebook.

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.