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Products & Services
About Callflow
Callflow is listed as a company based in Chicago, Illinois, United States, operating in Telecommunication providers, employing 21-50 people, reporting $5M-$10M in annual revenue and classified under All Other Telecommunications.
Its primary NAICS classification is 517810 (All Other Telecommunications). Callflow is one of 39,468 Communication companies listed in Illinois.
Business Contact Information
- Phone
- +359 (2) 874 0080
- Website
- callflowlab.com
- linkedin.com/company/callflow
- facebook.com/callflowlab
- Address
- 1784 815 W Newport Ave 1f, Chicago, Illinois, 60657, United States
Industry & Classification
- Industry
- Communication
- Sector
- Telecommunication
- Segment
- Telecommunication providers
NAICS Codes
- 51Information
- 5178All Other Telecommunications
- 517810All Other Telecommunications
SIC Codes
- 48Communications
- 489Communications Services, Not Elsewhere
- 4899All Other Telecommunications
Company Details
- Employees
- 39 (21-50)
- Annual Revenue
- $5.6M ($5M-$10M)
Callflow: frequently asked questions
What does Callflow do?
Callflow is listed as a company based in Chicago, Illinois, United States, operating in Telecommunication providers, employing 21-50 people, reporting $5M-$10M in annual revenue and classified under All Other Telecommunications.
Where is Callflow located?
Callflow is headquartered at 1784 815 W Newport Ave 1f, Chicago, Illinois, 60657, United States.
How many employees does Callflow have?
Callflow has about 39 employees (the 21-50 range).
What is Callflow's annual revenue?
Callflow's annual revenue is estimated at $5.6M (the $5M-$10M range).
What industry is Callflow in?
Callflow is in the Communication / Telecommunication industry, and its primary NAICS code is 517810 (All Other Telecommunications).
How can I contact Callflow?
Its website is callflowlab.com and its phone number is +359 (2) 874 0080.
What companies are similar to Callflow?
Other large communication companies in Illinois include Etisalat, Assurance Wireless, Telephone and Data Systems Inc and Telephone and Data Systems Inc.
Largest companies in Illinois
Largest communication 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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