| Area | Company | Contact person email | Phone | Fax |
| Japan | Seki Technotron Corp. | Yoji Hinamoto | +81-3-3820-1714 | +81-3-3820-1731 |
| UK | Sematron | abaksh@sematron.com | +44(0)7920 265016 | +44(0)1256 812666 |
| France | Rohde & Schwarz | Jean-Louis.Claraz@rsf.rohde-schwarz.com | +33 1 4136 1000 | +33 1 4136 1024 |
| Singapore |
E-sources International Pte Ltd
|
raymond@esources-intl.com | +65 6310 6242 | +65 6310 7784 |
| Spain |
Instrumentos de Medida S.L.
|
idm@idm-instrumentos.es | +34 91 300 01 91 | +34 91 388 54 33 |
| Russia |
Linetest
|
poplavsky@linetest.ru | +7(962) 954-69-42 | +7(495) 350-25-39 |
| Israel | Shany-Tech | sharon@shany-tech.com | +972 (0)4 6372908 | +972 (0)4 6372908 |
| Korea | Daritech / S.C.Pyo | daritech@chol.com | +82 16 226 9057 | +82 2 2168 2247 |
| China | Acterna (JDSU) | zhimin.qian@jdsu.com | +8610 6655 5988 ext 772 mobile +86 13910717692 |
+8610 6655 5996 |
| Hong Kong | Schmidt Electronics | Kenny Ku | +852 2610 3828 | +852 2892 0770 |
| Taiwan | Voytech | timothy_tseng@victory-tech.com.tw | +886-2-28780-2958 | +886-2-2722-5700 |
| Europe | Sofimation | vesa.huhtilainen@sofimation.com | +358 9 4780 4400 | +358 9 4780 4440 |
The test system makers and 3rd party integrators deliver SOFI fading simulators too. Contact the original supplier first.