Insights

Specialized Security Offerings Group Services focuses on providing proprietary, high-quality security solutions to select clients, indicating an opportunity to cross-sell advanced security technologies and customized security programs tailored to high-value segments.

Technological Innovation Utilizing modern tech stacks like PHP, Apache, and various frontend tools suggests a capacity for integrating innovative security management platforms, presenting a potential for upselling integrated security monitoring and digital asset protection services.

Growth Potential With revenue between 1M and 10M and a dedicated team of up to 200 employees, there is scope to expand service offerings to existing clients or explore new market segments, particularly in corporate and government sectors seeking reliable security partners.

Competitive Positioning Compared to industry giants with thousands of employees and billions in revenue, Group Services has a niche focus which allows for personalized service and specialized tech solutions, appealing to clients looking for tailored security approaches rather than generic solutions.

Market Expansion Opportunities Given the company's long-standing presence since 1990 and emphasis on high standards and ongoing training, there is potential to leverage reputation and experience to target emerging markets such as cybersecurity integration, event security, or high-risk asset protection.

Group Services Tech Stack

Group Services uses 8 technology products and services including Google Fonts API, Sirvoy, Twitter typeahead.js, and more. Explore Group Services's tech stack below.

  • Google Fonts API
    Font Scripts
  • Sirvoy
    Hotel Management
  • Twitter typeahead.js
    Javascript Libraries
  • Zepto
    Javascript Libraries
  • JsViews
    Javascript Libraries
  • Priority Hints
    Performance
  • PHP
    Programming Languages
  • Apache
    Web Servers

Media & News

Group Services's Email Address Formats

Group Services uses at least 1 format(s):
Group Services Email FormatsExamplePercentage
FLast@gsisecurity.comJDoe@gsisecurity.com
48%
First.Last@gsisecurity.comJohn.Doe@gsisecurity.com
2%
FLast@gsisecurity.comJDoe@gsisecurity.com
48%
First.Last@gsisecurity.comJohn.Doe@gsisecurity.com
2%

Frequently Asked Questions

Where is Group Services's headquarters located?

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Group Services's main headquarters is located at 6000 Western Place #300, Fort Worth, TX 76107, US. The company has employees across 6 continents, including North AmericaAfricaAsia.

What is Group Services's phone number?

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

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Group Services's official website is gsisecurity.com and has social profiles on LinkedIn.

What is Group Services's NAICS code?

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Group Services's NAICS code is 5616 - Investigation and Security Services.

How many employees does Group Services have currently?

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As of November 2025, Group Services has approximately 51 employees across 6 continents, including North AmericaAfricaAsia. Key team members include Director Of Information Technology: B. A.Director / Principal Consultant: G. M.Human Resources: J. D.. Explore Group Services's employee directory with LeadIQ.

What industry does Group Services belong to?

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Group Services operates in the Security and Investigations industry.

What technology does Group Services use?

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Group Services's tech stack includes Google Fonts APISirvoyTwitter typeahead.jsZeptoJsViewsPriority HintsPHPApache.

What is Group Services's email format?

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Group Services's email format typically follows the pattern of FLast@gsisecurity.com. Find more Group Services email formats with LeadIQ.

When was Group Services founded?

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Group Services was founded in 1990.

Group Services

Security and InvestigationsUnited States51-200 Employees

Founded in 1990, Group Services, Inc. (GSI) provides proprietary security services to select clients across the nation.  State of the art technology and methodologies are employed to ensure the protection of assets, individuals and information.  A high standard of excellence is maintained through ongoing training and a commitment to provide best in class quality across the range of services provided.

Section iconCompany Overview

Headquarters
6000 Western Place #300, Fort Worth, TX 76107, US
Phone number
NAICS Code
5616 - Investigation and Security Services
Founded
1990
Employees
51-200

Section iconMedia & News

Section iconFunding & Financials

  • $1M$10M

    Group Services's revenue is estimated to be in the range of $1M$10M

Section iconFunding & Financials

  • $1M$10M

    Group Services's revenue is estimated to be in the range of $1M$10M

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