PCB Piezotronics
development, production, and marketing of piezoelectric quartz, tourmaline, and ceramic sensors for measuring dynamic pressure, force, shock, and vibration. Our sensors are designed for applications ranging from the characterization of underwater blast wave propagation to detecting micro-g vibrations on the solar panels of orbiting satellites.
http://www.pcb.com/

Gram and Juhl
We supply the wind industry with efficient Wind Turbine Condition Monitoring - TCM®. Now 2,000+ systems installed worldwide.
http://www.gramjuhl.dk/

CDA Systems Limited
CDA Systems Limited - Electronic Design
http://www.cdasys.com

SKF-CM Custom Products
Source for low cost vibration monitoring, vibration transducer mounting accessories, vibration switch boxes and custom designed and integrated instrument cabinets.
http://www.cmcpweb.com/

Geospace Technologies
Manufacturer and supplier of recording instrumentation and systems, sensors, geophones, hydrophones, vibration detectors, seismometers, custom cables and umbilicals.
http://www.concordtech.com/

Wilcoxon Research
Here at Wilcoxon; our piezoelectric sensors make excellent hazardous area tools in situations where immediate notification is key. Also, Our vibration sensors are ideal in aiding predictive maintenance.
http://www.wilcoxon.com/

HGC Engineering
Structural dynamics include building vibration and floor vibration, which can cause structural fatigue. The solution is applying Finite Element Analysis (FEA) methods to design custom vibration isolation systems.
http://www.buildingvibration.com

Sensorex
Sensorex quality pH Electrodes, ORP Electrodes, Conductivity Sensors, non-contacting Toroidal Conductivity Sensors, dissolved oxygen sensors, and Chlorine Dioxide Sensors. Sensorex over 30 years experience manufacturing a wide array of electrochemical sensors. Find the right sensor for your application.
http://www.sensorex.com

IFM Efector, Inc.
ifm efector - Sensors and Controls
http://www.ifmefector.com/

Engineering Seismology Group Canada
Specializes in passive monitoring of induced microseismicity, designs and manufactures vibration sensors, acquisition systems and recording instruments.
http://www.esg-solutions.com/