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Insights

Premium enterprise GMSC Security serves high profile buildings and Fortune 100 clients across major markets like New York and Chicago, indicating a strong track record with large, complex facilities that require scalable security solutions suitable for enterprise contracts.

Boutique scale While handling large volumes, GMSC positions itself as a boutique service provider, suggesting opportunities to upsell premium services such as tailored risk assessments, executive protection, and customized integration projects for premium properties and corporate campuses.

Integrated tech The tech stack includes OpenAI, Google Cloud, DocuSign and KnowBe4, signaling readiness for advanced monitoring, AI-driven security analytics, digital workflows, and security training programs that can be offered as value-added solutions to existing clients.

Growth potential Revenue is in the several tens of millions range with 51-200 employees, indicating room to expand services (fire/life safety, systems integration, 24/7 monitoring) to new sectors or regions while leveraging existing large-client relationships.

Partnerships focus Past collaboration with GCJ Management and strong NY/NJ presence suggest opportunities to pursue group-facility partnerships, events security programs, and multi-site managed services for landlords, property managers, and corporate real estate portfolios.

Similar companies to GMSC Security

GMSC Security Tech Stack

GMSC Security uses 8 technology products and services including iCIMS, OpenAI, Google Cloud, and more. Explore GMSC Security's tech stack below.

GMSC Security's Email Address Formats

GMSC Security uses at least 1 email format:
GMSC Security Email FormatsExamplePercentage
FLast@gmscsecurity.comJDoe@gmscsecurity.com
100%

Frequently Asked Questions

What is GMSC Security's phone number?

Minus sign iconPlus sign icon You can contact GMSC Security's main corporate office by phone at
+1-312-527-****
. 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 GMSC Security's official website and social media links?

Minus sign iconPlus sign iconGMSC Security's official website is gmscsecurity.com and has social profiles on LinkedIn.

How much revenue does GMSC Security generate?

Minus sign iconPlus sign icon As of October 2026, GMSC Security's annual revenue is estimated to be $10M - $25M.

What is GMSC Security's NAICS code?

Minus sign iconPlus sign iconGMSC Security's NAICS code is 5616 - Investigation and Security Services.

How many employees does GMSC Security have currently?

Minus sign iconPlus sign iconAs of October 2026, GMSC Security has approximately 114 employees across 2 continents, including North America and Asia. Key team members include Vice President: A. F., Divisional Vice President - Operations: K. M. and Director Of Technology: A. A. Explore GMSC Security's employee directory with LeadIQ.

What industry does GMSC Security belong to?

Minus sign iconPlus sign iconGMSC Security operates in the Security and Investigations industry.

What technology does GMSC Security use?

Minus sign iconPlus sign iconGMSC Security's tech stack includes iCIMS, OpenAI, Google Cloud, DocuSign, Office 365, WP Engine, KnowBe4 and Slack.

What is GMSC Security's email format?

Minus sign iconPlus sign iconGMSC Security's email format typically follows the pattern of FLast@gmscsecurity.com. Find more GMSC Security email formats with LeadIQ.
GMSC Security logo

GMSC Security

Security and InvestigationsNew York, United States51-200 Employees

GMSC Security is a security and investigations firm with more than 30 years of experience protecting high-profile buildings and office environments in New York and Chicago. It offers a range of services, including fire and life-safety systems, systems integration, 24/7 monitoring, and security consulting. The company serves large commercial and retail properties and counts Fortune 100 companies among its clients.

Its portfolio spans more than 25 million square feet of space, including clients such as IPG, Amazon, Facebook, Bloomberg, VNO, Manhattan Mall, and Merchandise Mart. Based in New York, the firm operates within the security and investigations industry and serves a broad mix of commercial, retail, and corporate properties. The organization maintains a substantial footprint across New York and Chicago through ongoing security programs for major properties.

Section iconCompany Overview

Phone number
+1-312-527-****
Website
gmscsecurity.com
NAICS Code
5616 - Investigation and Security Services
Employees
51-200

Section iconMedia & News

Section iconFunding & Financials

  • $10M - $25M

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

Company Leadership

  • Vice President at GMSC Security
    A. F.
    Vice President
    Mobile Phone
  • Divisional Vice President - Operations at GMSC Security
    K. M.
    Divisional Vice President - Operations
    Mobile Phone
  • Director Of Technology at GMSC Security
    A. A.
    Director Of Technology
    Mobile Phone
  • Director at GMSC Security
    A. B.
    Director
    Mobile Phone
  • Security Operations Supervisor - Physical Security And Technology at GMSC Security
    N. M.
    Security Operations Supervisor - Physical Security And Technology
    Mobile Phone

Employee Directory

  • Iot & Security Systems Engineer at GMSC Security
    E. R.
    Iot & Security Systems Engineer
    Mobile Phone
  • Food Service Specialist at GMSC Security
    D. G.
    Food Service Specialist
    Mobile Phone
  • Security Professional at GMSC Security
    D. P.
    Security Professional
    Mobile Phone
  • Security Guard at GMSC Security
    J. L.
    Security Guard
    Mobile Phone
  • Security Officer at GMSC Security
    L. P.
    Security Officer
    Mobile Phone

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