• Ant Wireless (Proprietary Stack)
• Adaptive Wireless (UK-based Sensicast)
• Sensinet (UK-based Sensicast)
• Dust Networks
• GainSpan(Low-power Wifi for sensors)
• Xandem (Device-Free Sensing Technologies)
• Millennial Net
• Shimmer Research (Ireland based)
Wearable App., RT kinematic motion, physiological sensing.
Smart Phone Solutions
• Valarm (industrial sensing, home security, healthcare, asset localization and tracking, mobile app and cloud based tools).
Full scoop on their blog
General WSN also used in research