According to our records, this business is located at 27 Grant St. in Crystal Lake (in McHenry County), Illinois 60014, the location GPS coordinates are: 42.2417919 (latitude), -88.319787 (longitude). Sequoia Communication Inc is categorized under Computer Consultants (SIC code 7379). Current estimates show that the unit has a sales volume of $644,000 and staff of approximately 4 people. You can contact the company by phone at (847) 854-7913.