Insights

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Gathering insights about Group Services

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. 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 January 2026, Group Services has approximately 11 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 InvestigationsTexas, United States11-50 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
Phone number
NAICS Code
5616 - Investigation and Security Services
Founded
1990
Employees
11-50

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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