| Symbol | Name | Country | Exchange |
|---|---|---|---|
| ADI | Analog Devices, Inc. | US | NASDAQ |
| TAYD | Taylor Devices, Inc. | US | NASDAQ |
| SCTQ | Spectra Sys Corp | US | OTC |
| SPSC | Spectra Systems Corporation | UK | LSE |
| SPSY | Spectra Systems Corporation | UK | LSE |
| PRTC | Priortech | IL | TA |
| 3563 | Machvision Inc | TW | TW |
| JEN | Jenoptik AG | DE | XETRA |