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Products & Services
About Armstrong Security
This profile covers Armstrong Security, a company based in Chicago, Illinois, United States, operating in Office service, employing 21-50 people, reporting $1M-$5M in annual revenue and classified under Investigation and Security Services.
Its primary NAICS classification is 561612 (Security Guards and Patrol Services). Armstrong Security is one of 508,039 Industrial & mechanical companies listed in Illinois.
Business Contact Information
- Website
- armstrongsecurityllc.com
- Address
- Chicago, Illinois, 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
- 561612Security Guards and Patrol Services
SIC Codes
- 73Business Services
- 738Miscellaneous Business Services
- 7381Investigation Services
Company Details
- Employees
- 21 (21-50)
- Annual Revenue
- $3.0M ($1M-$5M)
Armstrong Security: frequently asked questions
What does Armstrong Security do?
This profile covers Armstrong Security, a company based in Chicago, Illinois, United States, operating in Office service, employing 21-50 people, reporting $1M-$5M in annual revenue and classified under Investigation and Security Services.
Where is Armstrong Security located?
Armstrong Security is headquartered in Chicago, Illinois, United States.
How many employees does Armstrong Security have?
Armstrong Security has about 21 employees (the 21-50 range).
What is Armstrong Security's annual revenue?
Armstrong Security's annual revenue is estimated at $3.0M (the $1M-$5M range).
What industry is Armstrong Security in?
Armstrong Security is in the Industrial & mechanical / Commercial services industry, and its primary NAICS code is 561612 (Security Guards and Patrol Services).
How can I contact Armstrong Security?
Its website is armstrongsecurityllc.com.
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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