Investor Relations

Clay Crolius
ir@sonimtech.com

Transfer Agent

American Stock Transfer and Trust Company, LLC
6201 15th Avenue
Brooklyn, NY 11219

Auditor

Baker Tilly US, LLP
635 Campbell Technology Pkwy
Campbell, CA 95008
T: 408-558-7500

Legal Counsel

Venable
151 W. 42nd Street, 49th Floor
New York, NY 10036
T: 212-307-5500
www.venable.com