| Parker Hannifin | PH |
| Kadant | KAI |
| Ingersoll Rand | IR |
| Idex | IEX |
| Flowserve | FLS |
| Core Molding Technologies | CMT |
| Advanced Emissions Solutions | ADES |
| Amtech Systems | ASYS |
| Aaon | AAON |
| Taylor Devices | TAYD |
| Puradyn Filter Technologies | PFTI |
| Mueller Water Products | MWA |
| Cavitation Technologies | CVAT |
| Circor International | CIR |
| Milacron Holdings | MCRN |
| Altra Industrial Motion | AIMC |
| Electro Sensors | ELSE |
| Ceco Environmental | CECE |
| Xylem | XYL |
| Tennant Co. | TNC |
| Smart Heat | HEAT |
| Proto Labs | PRLB |
| The Middleby | MIDD |
| Lincoln Electric Holdings | LECO |
| John Bean Technologies | JBT |
| Hurco Cos. | HURC |
| En Pro Industries | NPO |
| Colfax | CFX |
| Badger Meter | BMI |
| Actuant | ATU |
| Graham | GHM |
| China Recycling Energy | CREG |
| Barnes Group | B |
| 3 D Systems | DDD |
| Woodward | WWD |
| Sun Hydraulics | SNHY |
| Bio Hi Tech Global | BHTG |
| Techprecision | TPCS |
| Kennametal | KMT |
| Midwest Energy Emissions | MEEC |
| Franklin Electric Co. | FELE |
| Graco | GGG |
| Dover | DOV |
| Tecogen | TGEN |
| Sono Tek | SOTK |
| Spx Flow | FLOW |
| Illinois Tool Works | ITW |
| Advanced Engine Technologies | AENG |
| Chart Industries | GTLS |
| Delphax Technologies | DLPX |
| Eau Technologies | EAUI |
| Ees Tech | EESH |
| E Fleets | EFLT |
| Electric & Gas Technology | ELGT |
| Gencor Industries | GENC |
| Hydrogen Engine Center | HYEG |
| Perma Pipe International Holdings | PPIH |
| Paul Mueller Co. | MUEL |
| Processa Pharmaceuticals | PCSA |
| Jason Industries | JASN |
| Reunion Industries | RUNI |
| Sionix | SINX |
| Terra Systems | TSYI |
| Broadwind | BWEN |
| Voxeljet Ag | VJET |
| Mayville Engineering Co. | MEC |
| Gardner Denver Holdings | GDI |
| Ecomat | ECMT |
| Tiburon International Trading | TNCP |
| Sus Global Energy | SNRG |
| Amanasu Technologies | ANSU |
| Acm Research | ACMR |
| Amfil Technologies | AMFE |
| Applied Materials | AMAT |
| Greenland Technologies Holding | GTEC |
| Integral Vision | INVI |
| Global Green Solutions | GGRN |
| Nf Energy Saving | NFEC |