Athena Microsystem Solutions LLC
Hall-effect current sensing modules, SIMMStick modules and Wireless modules.
http://www.athenamicrosystems.com

CEDRAT
Software for Electrical Engineering. Modules for Electromagnetics, electromechanics, piezo active materials, and thermal effects.
http://www.cedrat-grenoble.fr/

Rosen Electrical
Providing commercial electrical engineers and electrical technicians with an easy to use source for locating new, used and surplus electrical equipment
http://www.rosenelectric.com

The Industrial Electricians Notebook
The Industrial Electricians Notebook. Free online electrical books featuring: electrical and electronic theory, electrical reference data, electrical equipment operation, electrical safety and reference information. Published by Kilowatt Classroom.
http://www.kilowattclassroom.com/Notebook4.htm

Aardvark Optics
Supplier of optical and electrical telecom accessories such as connectors, modules, distribution products and patch panels.
http://www.aardvarkoptics.co.uk/

Engineering Power Tools
General utility with modules covering mechanical, electrical, and structural engineering.
http://www.pwr-tools.com/

DAISy
CD, DVD and SACD applications by DAISy, using Philips audio and video technology : CD, SACD, DVD video, DVD audio can be supplied to audio and video manufacturers with full technical support
http://www.daisy-laser.com/

PostNuke Modules CVS
The world's largest development and download repository of Open Source code and applications
http://sourceforge.net/projects/pn-modules

Gary Strangman's Python Modules
Contains several general and one specialized python modules that were generated for the purpose of being useful to other python users. The modules here mainly protain to statistical analysis and input/output handling.
http://www.nmr.mgh.harvard.edu/Neural_Systems_Group/gary/python.html

Clare Instruments
Clare Instruments, LVD & CE electrical safety & conformance test equipment for manufacture & rental hire power tool retest PAT of products to BS EN UL VDE HSE electricity at work regulation. Cable & harness test equipment for maintenance & manufacture.
http://www.clare.co.uk/