Industrial sensing
• Ant Wireless (Proprietary Stack)
• Adaptive Wireless (UK-based Sensicast)
• Sensinet (UK-based Sensicast)
• Sensicast
• Conax
• Dust Networks
• Solidica
• Sensys
• Ember
• Episensor
• GainSpan(Low-power Wifi for sensors)
• Xandem (Device-Free Sensing Technologies)
• EcoLogicSense
• Millennial Net
Home security
• AlertMe
Healthcare
• 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
• ESR
• Sensinode
• Sentilla (Proprietary stack)
• Libelium
• Archrock
• Whiznets
• SunSPOT
• Freescale
• BTnode Zurich
• Particle
• Infineon
• Sensorprod
• EasySen
• Zolertia
• Atmel
• Coalesenses