Insights

Strong Local Presence GCSI Security Group has established itself as a trusted provider in the Southern New Jersey area since 1986, offering personalized and reliable security solutions for both residential and commercial clients, which indicates a deep community engagement and potential for local service expansion.

Diverse Security Offerings The company provides a wide range of security and fire protection systems, including burglar alarms, fire alarms, video surveillance, access control, and 24-hour monitoring, creating opportunities to cross-sell integrated security packages tailored to various customer needs and budgets.

Mid-Market Revenue With revenues estimated between 10 to 25 million dollars, GCSI operates in the mid-market segment, suggesting potential for growth through upselling advanced security technologies and expanding customer base within similar sized organizations.

Industry Expertise Having served since 1986 with experienced installation and service staff, GCSI possesses valuable industry knowledge and a trustworthy reputation that can be leveraged to differentiate from competitors and win service contracts with new commercial and high-end residential clients.

Technology Integration Utilizing modern digital tools such as cloud-based hosting and web analytics, GCSI is positioned to adopt advanced security tech and digital marketing strategies, enabling outreach to tech-savvy customers and expanding its market footprint.

GCSI Security Group Tech Stack

GCSI Security Group uses 8 technology products and services including Cloudflare CDN, jQuery, jQuery Migrate, and more. Explore GCSI Security Group's tech stack below.

  • Cloudflare CDN
    Content Delivery Network
  • jQuery
    Javascript Libraries
  • jQuery Migrate
    Javascript Libraries
  • WP Engine
    Platform As A Service
  • Java
    Programming Languages
  • Google Tag Manager
    Tag Management
  • Contact Form 7
    Web Platform Extensions
  • ExactMetrics
    Web Platform Extensions

Media & News

GCSI Security Group's Email Address Formats

GCSI Security Group uses at least 1 format(s):
GCSI Security Group Email FormatsExamplePercentage
FLast@gcsi-nj.comJDoe@gcsi-nj.com
44%
First.Last@gcsi-nj.comJohn.Doe@gcsi-nj.com
6%
FiLast@gcsi-nj.comJoDoe@gcsi-nj.com
6%
FLast@gcsi-nj.comJDoe@gcsi-nj.com
44%

Frequently Asked Questions

What is GCSI Security Group's phone number?

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You can contact GCSI Security Group'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 GCSI Security Group's official website and social media links?

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GCSI Security Group's official website is gcsi-nj.com and has social profiles on LinkedIn.

What is GCSI Security Group's SIC code NAICS code?

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GCSI Security Group's SIC code is 7381 - Detective, Guard, and Armored Car Services NAICS code is 81 - Other Services (except Public Administration).

How many employees does GCSI Security Group have currently?

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As of December 2025, GCSI Security Group has approximately 19 employees across 2 continents, including North AmericaSouth America. Key team members include Owner: R. J.Project Manager / Tech: B. R.Office Manager: B. D.. Explore GCSI Security Group's employee directory with LeadIQ.

What industry does GCSI Security Group belong to?

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GCSI Security Group operates in the Consumer Services industry.

What technology does GCSI Security Group use?

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GCSI Security Group's tech stack includes Cloudflare CDNjQueryjQuery MigrateWP EngineJavaGoogle Tag ManagerContact Form 7ExactMetrics.

What is GCSI Security Group's email format?

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GCSI Security Group's email format typically follows the pattern of FLast@gcsi-nj.com. Find more GCSI Security Group email formats with LeadIQ.

When was GCSI Security Group founded?

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GCSI Security Group was founded in 1986.

GCSI Security Group

Consumer ServicesNew Jersey, United States11-50 Employees

Security & Fire for Home & Business

Since 1986, GCSI has provided the greater Southern New Jersey area with quality installations, professional and trustworthy service, and a level of integrity that is lacking in our industry.  Our trained customer service staff delievers the benefits of technology, while still providing our trademark personalized and user friendly services.

We offer home and commercial security and fire systems. We provide reliable, custom systems to fit your lifestyle.

We offer a variety of services and products for all budgets: Burglar Alarms, Fire Alarms, Video Surveillance Systems, 24 Hour Central Station Monitoring, Port Surveillance Systems, Access Control Systems

Installation, Sales, and Service of All Major Brands

TWIC Certified

Section iconCompany Overview

Phone number
SIC Code
7381 - Detective, Guard, and Armored Car Services
NAICS Code
81 - Other Services (except Public Administration)
Founded
1986
Employees
11-50

Section iconMedia & News

Section iconFunding & Financials

  • $10M$25M

    GCSI Security Group's revenue is estimated to be in the range of $10M$25M

Section iconFunding & Financials

  • $10M$25M

    GCSI Security Group's revenue is estimated to be in the range of $10M$25M

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