Neuralynx, Inc. -
High density multichannel electrophysiology recording systems for electrophysiology and neuroscience research.
http://www.neuralynx.com/

Endocardial Solutions, Inc. (ESI)
Advanced electrophysiology diagnostic tools for the treatment of patients with arrhythmias.
http://www.endocardial.com

Essen Instruments
Essen Instruments: Providing Ion Channel Screening and Live Cell Imaging.
http://www.essen-instruments.com/

Ion Channel, Biophysics and Electrophysiology Resources
Ion Channel, Patch Clamp and Electrophysiology Research Portal - articles, jobs, lab registry, news, forum - updated daily
http://www.ionchannels.org/

Electrophysiology of Plants
Describes the membrane and action potentials of enzymatically isolated giant plant protoplasts and induction of electrofusion along with its mechanisms.
http://web-mcb.agr.ehime-u.ac.jp/english/biophys/default.htm

Metrovision
Instruments for visual field, visual electrophysiology, contrast sensitivity, and eye movements.
http://www.metrovision.fr/

Cordis Corporation
A medical device corporation and a pioneer in innovative devices and products for interventional vascular medicine and electrophysiology.
http://www.cordis.com/

Department of Anatomy & Neurobiology at UMBC
The Department of Anatomy & Neurobiology specializes in research involving: the chemical senses, neural networks, developmental neurobiology, computational neurobiology, molecular biology, neurophysiology, and neuroendocrinology.
http://neurobiology.umaryland.edu/

ALA Scientific Instruments
Manufacturer and distributor of research equipment in the neuroscience, electrophysiology, and cell biology fields. Cellular amplifiers, pipette pullers, perfusion systems, and micro manipulators.
http://www.alascience.com

Harvard Apparatus Inc.
Harvard Apparatus is the first name in bioscience. Harvard syringe pumps are the standard for drug infusion and sample injection. We are also the world leader in volume controlled, pressure controlled and high-frequency ventilation.
http://www.harvardapparatus.com/