Insights

Security Do More Target organizations in government, manufacturing, healthcare, and education sectors that require reliable, mission-critical security systems and offer CTSi Group as a trusted physical security integrator with scalable IP video, access control, and wireless networking solutions.

Scale Up Together Position CTSi Group as a partner for mid-size facilities seeking scalable, long-term security deployments. Highlight design-to-support lifecycle services to capture multi-year projects and expansion opportunities as facilities grow or upgrade technology.

Tech Stack Leverage Leverage CTSi’s technology footprint (AWS, WordPress, Microsoft 365, networking and web technologies) to cross-sell complementary services such as cloud-based security analytics, remote monitoring, and easy integration with existing IT environments in client organizations.

Local Compliance Emphasize Private Alarm Contractor license and compliance posture to win bids in regulated markets. Target procurements that specify audited security, compliance, and reliability requirements where CTSi Group’s credentials provide a competitive edge.

Antenna to Asset Highlight long-range wireless networking capabilities as a core differentiator for facilities with dispersed campuses, remote sites, or new construction. Propose end-to-end solutions from design and installation to ongoing support and security monitoring.

Similar companies to CTSi Group

CTSi Group Tech Stack

CTSi Group uses 8 technology products and services including Amazon Web Services, WordPress, Microsoft 365, and more. Explore CTSi Group's tech stack below.

  • Cloud Hosting
  • Content Management System
  • jQuery
    Javascript Libraries
  • Mobilemenu
    Web Design And Development Services
  • Contact Form 7
    Web Platform Extensions
  • Apache HTTP Server
    Web Servers
  • Nginx
    Web Servers

CTSi Group's Email Address Formats

CTSi Group uses at least 1 email format:
CTSi Group Email FormatsExamplePercentage
FLast@thinkcritical.comJDoe@thinkcritical.com
100%

Frequently Asked Questions

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.

How much revenue does CTSi Group generate?

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As of September 2026, CTSi Group's annual revenue is estimated to be $1M - $10M.

What is CTSi Group's NAICS code?

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CTSi Group's NAICS code is 5415 - Computer Systems Design and Related Services.

How many employees does CTSi Group have currently?

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As of September 2026, CTSi Group has approximately 5 employees across 1 continents, including North America. Key team members include Project Coordinator: N. N. 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 Amazon Web Services, WordPress, Microsoft 365, jQuery, Mobilemenu, Contact Form 7, Apache HTTP Server and Nginx.

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 logo

CTSi Group

IT Services and IT ConsultingIllinois, United States2-10 Employees

CTSi Group operates in the IT services and consulting space with a focus on physical security integration. The company designs and implements systems for surveillance, access control, and wireless connectivity, aiming to provide reliable, mission-critical security solutions for facilities and personnel. Its customer base includes local governments, manufacturing facilities, hospitals, schools, and small to mid-size businesses, addressing challenges around monitoring, controlling access, and safeguarding assets. Based in Downers Grove, Illinois, CTSi Group emphasizes scalable, resilient deployments that cover system design, installation, and ongoing support. The firm positions itself as a provider that combines sector expertise with established technologies to deliver secure security infrastructure intended for long-term performance.

Section iconCompany Overview

Phone number
NAICS Code
5415 - Computer Systems Design and Related Services
Founded
2003
Employees
2-10

Section iconFunding & Financials

  • $1M - $10M

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

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