Why choose comtech system? Contact us now! ComTech System Ltd was formed in 2010 and thanks to our loyal customer base and our dedicated team the company has grown over the years into one of the biggest IT resellers in the U.K. Our team are continually expanding to improve the efficiency of processing your orders.How do i contact comtech ef data? Comtech EF Data Corp. (Sales & Support Office) RM 807 Canway Bldg. No 66 Nanlish Road Xicheng District, Beijing 100045 China Tel: +86 10.6808.0081 Singapore Comtech EF Data Pte Ltd (Sales & Support Office) 150 Cecil Street #11-04 Singapore 069543 Tel: +65 6325.1956 Quick Links About Careers Newsroom All Collateral Trade Shows & EventsWhere is the headquarters of comtech located? Headquarters Comtech EF Data Corp. 2114 West 7th Street Tempe, AZ 85281 USA