Greg Johnstone

Sensant Corp. provides medical imaging systems. It uses silicon ultrasound micro electro-mechanical systems or MEMS technology to provide a platform for medical imaging systems. The company was founded by Igal Ladabaum, Greg Johnstone, and Kirti Patel in 1998 and is headquartered in San Leandro, CA.

SPL WorldGroup, Inc. develops customer and billing management software. It offers solutions in customer care & billing, enterprise asset & work management, mobile workforce management, outage & distribution management and enterprise business intelligence. The company provides implementation services such as scoping, sales handover, initiation, analysis, assembly, acceptance and rollout. SPL WorldGroup was founded in 1968 and is headquartered in San Francisco, CA.

Ventus Medical manufactured and distributed medical devices Located in Belmont, California, Ventus Medical has developed a new breakthrough therapy for obstructive sleep apnea (OSA). OSA afflicts roughly 50 million people in the United States alone, and existing solutions do not always meet patient's needs. Through truly innovative technology, solid clinical evidence, and a focus on the patient, Ventus Medical seeks to deliver consumer-preferred, physician-recommended solutions. Ventus Medical has conducted several randomized clinical studies across the United States and has received FDA clearance for PROVENT Sleep Apnea Therapy.