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Callahan Communication Service, Inc 222 N Canal Street Category: Telecommunications Consultants |
Company representatives
Location Type
Single Location
Revenue
$1,750,000 - $2,000,000
Employees
24
Years In Business
20
State of incorporation
Illinois
SIC code
8748 (Business Consulting Services, NEC)
NAICS code
541690 (Other Scientific and Technical Consulting Services)
Rating
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