| ABB Inc. |
2231 |

|
| Adaptor
Inc. |
8532 |
|
| Alfa Laval
Inc |
6121 |
|
| Aquarius
Technologies Inc |
654 |
|
| ASA
Analytics |
2634 |

|
| Badger
Meter |
1025 |

|
| BIOFerm
Energy Systems |
6219 |
|
| Biogill North
America Inc. |
8342 |
 |
| Centrisys
Corporation |
7708 |
|
| CNP-Technology Water and Biosolids
Corporation |
7711 |
|
| Cretex
Specialty Products |
641 |
|
| Dynamatic /
Drive Source International,
Inc. |
1050 |
|
| Eaton |
6124 |
|
| Emerson |
3616 |
|
| Environmental
Products & Services
Ltd. |
8622 |

|
| Evoqua Water
Technologies |
1631 |

|
| Liquid
Analytical Resource LLC |
2223 |
|
| NASSCO,
Inc. |
6533 |
|
| National
Liner LLC |
6015 |
|
| Neenah
Foundry Company |
118 |
|
| Pentair Flow
Technologies |
3625 |

|
| Petersen
Products Co |
757 |
|
| Putzmeister
America, Inc. |
5427 |
|
| Red Flint
Sand & Gravel |
5114 |
|
| Rockwell
Automation |
3005 |

|
| Rotork
Controls Inc |
6944 |
|
| Samuel
& Son Co., Ltd. |
5460 |
|
| Schwing
Bioset Inc |
2007 |
|
| Stainless
Piping Specialists |
4308 |
|
| Subsurface
Instruments, Inc. |
2262 |
|
| The
Industrial Controls Company |
5260 |
|
| The Water
Council |
7947 |

|
| USEMCO |
2063 |
|
| Veolia Water
Technologies |
2048 |

|
| Voith Meri
Environmental Solutions Inc |
2654 |
|
| Wilo USA
LLC |
4612 |
|
| Wisconsin
Economic Development
Corporation |
7947 |

|
| Xylem |
1248 |

|