Burroughs Corporation
Kriens began his marketing career with Burroughs Corporation, which merged with Sperry in 1986 to form Unisys, and then worked for Tandem Computers, before becoming a co-founder of telecommunications equipment company StrataCom, Inc. in 1986. From 1986 to 1996 Kriens was vice president of sales and operations, until Stratacom was acquired for $4.5 billion by Cisco.