Insights

Security Technology Expertise CTSi Group specializes in advanced IP-based video surveillance, access control systems, and long-range wireless networking, making it an ideal partner for organizations seeking reliable and scalable security solutions in various sectors including government, healthcare, and manufacturing.

Customization Capabilities The company's tailored security solutions designed specifically for small to mid-sized businesses, hospitals, and public institutions suggest opportunities to introduce flexible, scalable security upgrades that enhance operational safety and compliance.

Growth Potential With a revenue range of 1M to 10M and a focus on mission-critical security, CTSi Group is positioned to expand its client base by leveraging its expertise to address increasing security demands driven by technological advancements and regulatory requirements.

Technology Stack Advantage Utilizing a modern tech stack including Google Fonts, Bootstrap, and Imunify360 indicates a commitment to innovative, secure, and user-friendly solutions, which can be promoted to clients seeking cutting-edge security infrastructure.

Market Segmentation Targeting local governments, educational institutions, healthcare facilities, and manufacturing plants presents numerous cross-selling opportunities for integrated security systems that improve safety, incident response, and operational resilience.

CTSi Group Tech Stack

CTSi Group uses 8 technology products and services including Google Fonts API, jQuery Migrate, Imunify360, and more. Explore CTSi Group's tech stack below.

  • Google Fonts API
    Font Scripts
  • jQuery Migrate
    Javascript Libraries
  • Imunify360
    Security
  • Bootstrap
    UI Frameworks
  • jPlayer
    Video Players
  • Contact Form 7
    Web Platform Extensions
  • Apache HTTP Server
    Web Servers
  • prettyPhoto
    Web Tools And Plugins

Media & News

CTSi Group's Email Address Formats

CTSi Group uses at least 1 format(s):
CTSi Group Email FormatsExamplePercentage
FLast@thinkcritical.comJDoe@thinkcritical.com
50%
FLast@thinkcritical.comJDoe@thinkcritical.com
50%

Frequently Asked Questions

Where is CTSi Group's headquarters located?

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CTSi Group's main headquarters is located at 1247 Warren Avenue Downers Grove, Illinois 60515 United States. The company has employees across 1 continents, including North America.

What is CTSi Group's phone number?

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

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CTSi Group's official website is thinkcritical.com and has social profiles on LinkedIn.

What is CTSi Group's SIC code NAICS code?

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CTSi Group's SIC code is 7379 - Computer Related Services, Not Elsewhere Classified NAICS code is 5415 - Computer Systems Design and Related Services.

How many employees does CTSi Group have currently?

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As of April 2026, CTSi Group has approximately 5 employees across 1 continents, including North America. Key team members include Vice President: J. P.Installation Technician: C. P.Wireless Engineer: M. B.. Explore CTSi Group's employee directory with LeadIQ.

What industry does CTSi Group belong to?

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CTSi Group operates in the IT Services and IT Consulting industry.

What technology does CTSi Group use?

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CTSi Group's tech stack includes Google Fonts APIjQuery MigrateImunify360BootstrapjPlayerContact Form 7Apache HTTP ServerprettyPhoto.

What is CTSi Group's email format?

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

When was CTSi Group founded?

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CTSi Group was founded in 2003.

CTSi Group

IT Services and IT ConsultingIllinois, United States2-10 Employees

CTSi Group is a trusted physical security integrator delivering advanced surveillance, access control, and wireless connectivity solutions for organizations that require reliable, mission-critical security systems.

We specialize in IP-based video surveillance, modern access control platforms, and long-range wireless networking designed to protect facilities, people, and assets. Our team works closely with local governments, manufacturing facilities, hospitals, schools, and small to mid-size businesses to design and deploy scalable security solutions tailored to each environment.

At CTSi Group, we combine industry expertise with proven technologies to build secure, dependable systems that help organizations monitor operations, control access, and respond quickly to potential threats. From system design and installation to ongoing support, we focus on delivering solutions that are practical, resilient, and built for long-term performance.

Learn more about our solutions at www.thinkcritical.com.

Section iconCompany Overview

Headquarters
1247 Warren Avenue Downers Grove, Illinois 60515 United States
Phone number
SIC Code
7379 - Computer Related Services, Not Elsewhere Classified
NAICS Code
5415 - Computer Systems Design and Related Services
Founded
2003
Employees
2-10

Section iconMedia & News

Section iconFunding & Financials

  • $1M$10M

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

Section iconFunding & Financials

  • $1M$10M

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

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