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Insights

Strategic Enterprise GMSC Security serves high-profile tenants and Fortune 100 clients across major markets in New York and Chicago, indicating opportunity to cross-sell advanced security offerings like integrated Fire/Life Safety, 24/7 monitoring, and security consulting to large corporate campuses and premium office buildings.

Boutique Scale Although a boutique service with a large-volume footprint, GMSC maintains personalized service for many high-visibility properties, suggesting an upsell path for scalable security programs that preserve service levels while expanding portfolio across additional properties and new regions.

Tech Enabled Existing tech stack includes OpenAI, Google Cloud, DocuSign, KnowBe4, and Slack, signaling readiness for AI-driven monitoring, digital workflows, and security awareness training; sales motion can emphasize modernized, integrated security platforms and efficiency gains.

Revenue Window Reported revenue range of 10–25 million with 51–200 employees and a large client base implies capacity to handle multi-site contracts and longer-term managed security services, presenting opportunities for expanding service contracts and add-ons like advanced analytics, incident response, and continuous improvement programs.

Expansion Potential Active deployment across multi-tenant and high-traffic spaces (retail, office, and Fortune 100) creates potential for upsell into additional properties within existing client portfolios, as well as cross-selling to new property management firms managing large commercial real estate assets.

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 August 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 August 2026, GMSC Security has approximately 113 employees across 1 continents, including North America. 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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