I use products and services from, and recommend, the following companies:
Low-cost E- and H-field probes, plus a low-cost wide-band preamp
Low-cost spectrum analyzers and other test equipment
Ferrite and other magnetics and transient protective products
Consulting on EMC Test Equipment and Test Setups
High quality current probes and other test equipment
Spectrum analyzers and other low-cost test & measurement equipment
Spectrum analyzers and other low-cost test & measurement equipment
Spectrum analyzers and other low-cost test & measurement equipment
Spectrum analyzers and other low-cost test & measurement equipment
Spectrum analyzers and other test & measurement equipment
EMC troubleshooting probes and test equipment
Distributor of unique and very cool electronic products and test equipment
Manufacturer of high quality EMC test equipment and probes