Semtech Corp
Semtech supplies analog and mixed-signal semiconductor products for use in computers, portable devices, communications and industrial equipment.
http://www.semtech.com/

TelCom Semiconductor Inc.
Microchip Technology Inc. is a Leading Provider of Microcontroller and Analog Semiconductors, providing low-risk product development, lower total system cost and faster time to market for thousands of diverse customer applications worldwide.
http://www.telcom-semi.com/

Mallory Sonalert Products, Inc.
Manufactures audible signal devices.
http://www.mallory-sonalert.com

Mixed Signal Integration
Manufacture analog filters and custom LSI devices.
http://www.mix-sig.com/

Dive Alert
Dive Alert and DiveAlert Plus gives Scuba divers the ability to signal above and below the surface using a loud, effective air horn.
http://divealert.com

SkyBlazer
Complete selection of safety flares and distress signals, first aid kits and accesories. Product lines include marine flares, road flares, light sticks and wilderness survival products. Orion is the nations leading manufacturer of visual distress signals. There flares are US Coast Guard Approved for marine application and most federal, state and local governments use their highway emergency flares
http://www.skyblazer.com/

Space and Signals Technologies, LLC
The Social Media blog is your single destination for updates on the AIM Buddy blog, the AIM Pages blog, the AOL Community Info blog, the Expressions Factory, the Marvelous Mob and the Social Media Mess blog.
http://members.aol.com/spaceandsignals/

Svenska Grindmatriser AB (SGA)
SGA develops and manufactures Application Specific Integrated Circuits, ASIC. Our focus is on analog and mixed signal ASIC for industrial, telecom, automotive and military products.
http://www.sga.se/

Patlite Corporation
Manufactures and develops visual and audible warning devices, markets signal and alarm products.
http://www.patlite.com/

Master Training Packages in Biomedical signal Processing
Graduate "distance learning": Extraction of Signals from Noise, Computing Methods for Simulation Modelling and Analysis, Instrumentation Signal Acquisition and Stimulation, Signal Analysis for Medicine and Physiology, Biomedical Signal Processing: Concepts and Techniques, sound and vibration, biomedical signal processing, ISVR, Institute of Sound and Vibration Research, University of Southampton
http://www.soton.ac.uk/~mtpbsp/