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Products & Services
About ITR Systems
Protect your school or facility with ITR Systems, providing video surveillance, access control, intrusion alarms, intercoms, paging, sound systems, and synchronized clocks throughout the Chicago metropolitan area and beyond.
Its primary NAICS classification is 561621 (Security Systems Services (except Locksmiths)). ITR Systems is one of 508,039 Industrial & mechanical companies listed in Illinois.
Business Contact Information
- Phone
- +1 (630) 5120044
- Website
- http://www.itr-systems.com
- linkedin.com/company/itr-systems
- facebook.com/itrsystems
- Address
- 2737 Curtiss St, Downers Grove, Illinois, 60515, United States
Industry & Classification
- Industry
- Industrial & mechanical
- Sector
- Commercial services
- Segment
- Office service
NAICS Codes
- 56Administrative and Support and Waste Management and Remediation Services
- 5616Investigation and Security Services
- 561621Security Systems Services (except Locksmiths)
SIC Codes
- 73Business Services
- 738Miscellaneous Business Services
- 7382Security Systems Services (Except Locksmiths)
Company Details
- Employees
- 17 (11-20)
- Annual Revenue
- $3.4M ($1M-$5M)
ITR Systems: frequently asked questions
What does ITR Systems do?
Protect your school or facility with ITR Systems, providing video surveillance, access control, intrusion alarms, intercoms, paging, sound systems, and synchronized clocks throughout the Chicago metropolitan area and beyond.
Where is ITR Systems located?
ITR Systems is headquartered at 2737 Curtiss St, Downers Grove, Illinois, 60515, United States.
How many employees does ITR Systems have?
ITR Systems has about 17 employees (the 11-20 range).
What is ITR Systems's annual revenue?
ITR Systems's annual revenue is estimated at $3.4M (the $1M-$5M range).
What industry is ITR Systems in?
ITR Systems is in the Industrial & mechanical / Commercial services industry, and its primary NAICS code is 561621 (Security Systems Services (except Locksmiths)).
How can I contact ITR Systems?
Its website is www.itr-systems.com and its phone number is +1 (630) 5120044.
Largest companies in Illinois
Largest industrial & mechanical companies
Manufacturing sales in Illinois, 2026
In Illinois, Factur's 2026 study counted 74 manufacturing quotes worth $11.8M and 14 purchase orders over 12 months: 19% of quotes became orders, against 21% nationally. See the Illinois data.
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