BitArmor Systems, Inc. was a security software company headquartered in Pittsburgh, Pennsylvania that developed network management and data security software. The company was acquired by Trustwave Holdings, Inc.

PacketViper, LLC is a preemptive cybersecurity company providing network security solutions for IT, OT, and ICS environments. Its platform uses a patented Autonomous Moving Target Defense (AMTD) approach to hunt and disrupt threats before they reach the network, with inline enforcement and no agents required.

Wombat Security Technologies provided information security awareness and training software to help organizations teach employees secure behavior. A CMU spinoff based in Pittsburgh, PA, the company was acquired by Proofpoint in March 2018 for $225 million and rebranded as Proofpoint Security Awareness Training.