Insights

Innovative Technology Integration 3Si leverages cutting-edge technologies such as video monitoring intelligence and integrated dispatch platforms, making it highly attractive to law enforcement agencies and security providers seeking advanced, real-time incident response solutions.

Recent Strategic Partnerships The company's recent collaborations with Netwatch, Rapid Response Monitoring Services, and other key partners highlight opportunities to expand into integrated security and monitoring market segments through joint solutions and bundled services.

Growing Leadership Focus Strategic hires and internal promotions in senior leadership and law enforcement divisions demonstrate a focus on expanding market reach and strengthening government and enterprise relationships, opening avenues for targeted sales efforts.

Focused Market Niche Operating in the security and investigations industry with a comprehensive suite designed for actionable intelligence, 3Si offers targeted solutions that appeal to agencies and corporations investing in digital transformation and enhanced situational awareness.

Financial Stability With revenues between 50 to 100 million dollars and recent funding, 3Si presents opportunities for scalable sales engagement with public sector and enterprise clients looking to modernize their security infrastructure and leverage AI-driven insights.

3SI Security Systems Tech Stack

3SI Security Systems uses 8 technology products and services including Hotjar, Cloudflare, MySQL, and more. Explore 3SI Security Systems's tech stack below.

  • Hotjar
    Analytics
  • Cloudflare
    Content Management System
  • MySQL
    Database
  • Microsoft Excel
    Editors
  • Angular
    Javascript Frameworks
  • Microsoft Word
    Office Suites
  • JavaScript
    Programming Languages
  • Google Analytics
    Web Analytics

Media & News

3SI Security Systems's Email Address Formats

3SI Security Systems uses at least 1 format(s):
3SI Security Systems Email FormatsExamplePercentage
First_Last@3sisecurity.comJohn_Doe@3sisecurity.com
82%
FLast@3sisecurity.comJDoe@3sisecurity.com
14%
First@3sisecurity.comJohn@3sisecurity.com
3%
FirstLast@3sisecurity.comJohnDoe@3sisecurity.com
1%

Frequently Asked Questions

Where is 3SI Security Systems's headquarters located?

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3SI Security Systems's main headquarters is located at 101 Lindenwood Drive Suite 200 Malvern, Pennsylvania 19355 United States. The company has employees across 5 continents, including North AmericaEuropeAsia.

What is 3SI Security Systems's phone number?

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You can contact 3SI Security Systems'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 3SI Security Systems's stock symbol?

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3SI Security Systems is a publicly traded company; the company's stock symbol is 3SIS.L.

What is 3SI Security Systems's official website and social media links?

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3SI Security Systems's official website is 3sisecurity.com and has social profiles on LinkedInCrunchbase.

What is 3SI Security Systems's NAICS code?

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3SI Security Systems's NAICS code is 5616 - Investigation and Security Services.

How many employees does 3SI Security Systems have currently?

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As of April 2026, 3SI Security Systems has approximately 336 employees across 5 continents, including North AmericaEuropeAsia. Key team members include Chief Revenue Officer: M. C.Vp Of Revenue Operations: R. L.Vice President Of Revenue Operations: D. J.. Explore 3SI Security Systems's employee directory with LeadIQ.

What industry does 3SI Security Systems belong to?

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3SI Security Systems operates in the Security and Investigations industry.

What technology does 3SI Security Systems use?

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3SI Security Systems's tech stack includes HotjarCloudflareMySQLMicrosoft ExcelAngularMicrosoft WordJavaScriptGoogle Analytics.

What is 3SI Security Systems's email format?

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3SI Security Systems's email format typically follows the pattern of First_Last@3sisecurity.com. Find more 3SI Security Systems email formats with LeadIQ.

How much funding has 3SI Security Systems raised to date?

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As of April 2026, 3SI Security Systems has raised $13M in funding. The last funding round occurred on Jul 29, 2002 for $13M.

When was 3SI Security Systems founded?

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3SI Security Systems was founded in 1971.

3SI Security Systems

Security and InvestigationsPennsylvania, United States201-500 Employees

Redefined Actionable Intelligence: With a fresh new look and a revolutionary purpose and mission, we are positioned to better serve our clients, partners, law enforcement, and communities with our cutting-edge technologies and real-world experience to deliver redefined actionable intelligence via an integrated platform that significantly impacts the bottom line – and, more importantly, lives. 

The Power of 3: At the core of the new 3Si is the Power of 3 — a comprehensive suite of solutions designed to deliver on the company’s promise of getting the Right Data to the Right People at the Right Time to contribute to a Safer World.

Section iconCompany Overview

Headquarters
101 Lindenwood Drive Suite 200 Malvern, Pennsylvania 19355 United States
Phone number
Stock Symbol
3SIS.L
NAICS Code
5616 - Investigation and Security Services
Founded
1971
Employees
201-500

Section iconFunding & Financials

  • $13M

    3SI Security Systems has raised a total of $13M of funding over 1 rounds. Their latest funding round was raised on Jul 29, 2002 in the amount of $13M.

  • $50M$100M

    3SI Security Systems's revenue is estimated to be in the range of $50M$100M

Section iconFunding & Financials

  • $13M

    3SI Security Systems has raised a total of $13M of funding over 1 rounds. Their latest funding round was raised on Jul 29, 2002 in the amount of $13M.

  • $50M$100M

    3SI Security Systems's revenue is estimated to be in the range of $50M$100M

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