| Symbol | Name | Country | Exchange |
|---|---|---|---|
| EVSV | Enviro-Serv Inc | US | OTC |
| FRTN | Fortran Corporation | US | OTC |
| IRDEY | Iren Spa ADR | US | OTC |
| MCCK | Mestek Inc | US | OTC |
| MHHC | McCusker Holdings Corp. | US | OTC |
| MUEL | Paul Mueller Company | US | OTC |
| NEWEN | New England Pwr 6.00 | US | OTC |
| NIABY | Nibe Industrier Ab | US | OTC |
| OGFGF | Origin Energy Ltd | US | OTC |
| PLNTQ | Proliance Intl Inc | US | OTC |
| PRPI | Perpetual Inds | US | OTC |
| REGRF | Reg Technologies | US | OTC |
| RENU | Renuen Corp | US | OTC |
| RNWR | 808 Renewable Energy | US | OTC |
| SBLUY | Stabilus S.A. ADR | US | OTC |
| SIUAF | Stabilus Sa | US | OTC |
| SKENF | Sasakura Engineering CO Ltd | US | OTC |
| SPXSF | Spirax-Sarco Engineering plc | US | OTC |
| TKLS | Trutankless Inc. | US | OTC |
| TKUMF | Takuma Co | US | OTC |