Steve Jensen Consultants, Inc.
Offers electromagnetic compatibility consulting include analysis and design of EMI power line filters for switching power supplies.

MLE Power Supply Design UK
Power supply design, inverters, converters, UPS, switch mode, naval power supply, SMPS, DC, AC.

Cell Expert
Consultant on topics of batteries and power sources for OEMs and other electronic equipment designers and manufacturers.

Powersmith Consulting
Provide consulting services for power supply manufacturers and OEM end users, in distributed power architecture.

Reactive Power Solutions, LLC
A consulting firm dedicated to the electrical power conversion field.