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

Legal Counsel

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