| ADF Engineering, Inc. | 1028 |
| AGI | 1219 |
| AGRA Industries, Inc. | 405 |
| Air Resource Specialists, Inc. | 825 |
| AirClean Energy | 227 |
| Airgas Specialty Products | 1732 |
| AirPro Fan & Blower Company | 2018 |
| A-Lert Construction Services | 1623 |
| Alfa Laval, Inc. | 302 |
| Alliance Tank Service, LLC | 1331 |
| Alliance Technical Group | 1731 |
| Allied Mechanical | 1724 |
| Allied Powers, LLC | 2020 |
| Allied Valve, Inc. | 1425 |
| American Coalition for Ethanol | 1401 |
| Anderson Chemical Co. | 2019 |
| Angel Yeast Co., Ltd. | 622 |
| Apache Stainless Equipment Corporation | 324 |
| Applied Material Solutions, Inc. | 1309 |
| Arkema, Inc. | 1007 |
| Authorized Grain Service | 929 |
| Badger Meter | 527 |
| Barr Engineering Co. | 203 |
| BASF Enzymes, LLC | 1017 |
| Battelle | 210 |
| BE&E | 1717, 1715 |
| BetaTec Hop Products, Inc. | 911 |
| Bilfinger, Inc. | 625 |
| BioFuels Automation | 529, 531, 533 |
| Biofuels International | 1424 |
| Bioleap, Inc | 617 |
| Bion Companies | 619 |
| Bismarck State College | 1429 |
| Bloc Environmental Solutions | 130 |
| Boerger, LLC | 205 |
| BOSS Railcar Movers | 2036, 2038 |
| Bray International, Inc. | 1509 |
| Bronkhorst USA | 1728 |
| Brown Tank, LLC | 1024 |
| BS&B Pressure Safety Management, LLC | 1501, 1600 |
| Buckman | 1609 |
| Buhler, Inc./Mill Technology Company | 1006 |
| Buresh Building Systems | 525 |
| Burns & McDonnell | 410 |
| Bushel | 131 |
| Butterworth, Inc. | 1601 |
| Caloris Engineering | 201 |
| Ceco Environmental | 300 |
| CEDA International Corporation | 1711 |
| ChemTreat, Inc. | 116 |
| Chief AGRI | 1525 |
| Christianson PLLP | 1333 |
| Civil Design, Inc. | 722 |
| Cleaver-Brooks | 301 |
| Clextral, Inc. | 1300 |
| Cloud/Sellers | 1504 |
| Combustion Systems, Inc. | 1619 |
| CompuWeigh Corporation | 1301 |
| Conveyor Engineering & Mfg. Co. | 1733 |
| Cooling Technology Institute (CTI) | 230 |
| Cooling Tower Depot, Inc. | 1705 |
| CPM | 204 |
| CSE Bliss Manufacturing, LLC | 1402 |
| CTE Global, Inc. | 711 |
| D3MAX, LLC | 417 |
| David H. Paul, Inc. | 1229 |
| DEKRA | 232 |
| Direct Companies | 1106 |
| Donaldson Torit | 1323 |
| Dowco Valve Company | 223 |
| Draeger Safety | 2029 |
| DSM Bio-based Products & Services | 609 |
| Durr Systems, Inc. | 526 |
| Eagle Services Corporation | 827 |
| Eco Industrial Services | 1701 |
| EcoEngineers | 1430 |
| Ecolab, Inc. | 1319 |
| Edeniq, Inc. | 1417 |
| Emerson | 309 |
| Emerson | 209 |
| Energy Integration, Inc. | 121 |
| Energy Management Solutions, Inc. | 432 |
| Enertech Solutions, Inc. | 1625 |
| Enviro-Dyne Industrial Services | 724 |
| EnviroLogix, Inc. | 1629 |
| Enviroserve | 733 |
| Fagen, Inc. | 809 |
| Ferm Solutions, Inc. | 2022 |
| FEW Exhibit Sales Center | 1529 |
| Fiber Chem, Inc. | 931 |
| Fisher Tank Company | 305 |
| Flottweg Separation Tech | 331 |
| Fluid Process Equipment, Inc. | 2017 |
| Fluid Quip Technologies, LLC | 517 |
| Fluid Technology Corporation | 1719 |
| FNA Inc | 524 |
| Foundation Analytical Laboratory, Inc. | 624, 626 |
| Franzenburg Centrifuge | 1411 |
| G Tech USA | 1703 |
| GEA Group | 632 |
| Genesis III | 425 |
| Gilbert Industries, Inc. | 1405 |
| Global Refractory Installers & Suppliers | 1233 |
| Golder Associates | 431 |
| Growth Energy | 901 |
| GSI Group | 2030 |
| H2O Innovation | 729 |
| Hammelmann Corp. | 128 |
| Hengye, Inc. | 304 |
| Hoffmann Inc. & Wolf Material Handling Systems | 930 |
| Horiba Scientific | 1704 |
| Howden | 1700 |
| HRST, Inc. | 1326 |
| HTH Companies | 133 |
| Hupp Electric Motors | 1532 |
| Hydrite Chemical Co. | 504 |
| Hydro-Thermal Corporation | 1500 |
| IBiocat/Celignis | 1702 |
| ICM, Inc. | 317, 2047 |
| IES Commercial & Industrial | 1033 |
| IFF | 917 |
| Igenbio | 2006 |
| IIVS Interstate Industrial Vac Service, Inc. | 122 |
| Innospec Fuel Specialties | 1324 |
| Innovative Plant Solutions, Inc. | 933 |
| Innovative Technologies | 427 |
| IntegroEnergy Group, Inc. | 225 |
| Interra Global Corporation | 1517 |
| Interstates, Inc. | 500 |
| J&D Construction, Inc. | 1201 |
| J.A. King | 1403 |
| J.C. Ramsdell Enviro Services, Inc. | 1433 |
| Jacobs Global | 1330 |
| JBT/A&B Process Systems | 1431 |
| JTI Services, LLC | 206 |
| KATZEN International, Inc. | 907 |
| Keit Industrial Analytics | 2034 |
| Kemin Bio Solutions | 1030 |
| KESCO-CPM Bliss Industries, LLC | 400 |
| Koch Engineered Solutions | 2031 |
| Koch Knight, LLC | 2032 |
| Komax Systems, Inc. | 928 |
| Komline | 1400 |
| Kurita America | 601 |
| L&M Ethanol Maintenance Contracting, Inc. | 1032 |
| Laidig Systems, Inc. | 402 |
| Lallemand Biofuels & Distilled Spirits | 1117 |
| Leaf by Lesaffre | 1011 |
| Lechler, Inc. | 1427 |
| Lotus Mixers, Inc./LOTUS Process Group, LLC | 404 |
| Louisville Dryer Company | 1329 |
| Maas Companies, Inc. | 926 |
| Mapcon Technologies, Inc. | 522 |
| Mason Manufacturing, LLC | 623 |
| MC&I-Ridglok Tank Insulation | 2002 |
| McC, Inc. | 502 |
| Mcgyan Biodiesel, LLC | 2003 |
| Merjent, Inc. | 429 |
| Metrohm USA | 1227 |
| Midland Scientific, Inc. | 202 |
| Midwest Cooling Towers, Inc. | 627 |
| Minnesota Bio-Fuels Association, Inc. | 1428 |
| Mist Chemical & Supply Co. | 220 |
| Mitsubishi Chemical Corporation, Inc | 311 |
| MoistTech Corp. | 1328 |
| Mole Master Services Corporation | 1409 |
| Montrose Environmental Group, Inc. | 132 |
| MVTL Laboratories | 1303 |
| NABP | 217 |
| Nalco Water, an Ecolab Company | 1317 |
| National Corn-to-Ethanol Research Center | 409 |
| National Heat Exchange Cleaning Corporation | 831 |
| Nelson Baker Biotech | 1617 |
| NETZSCH Pumps North America, LLC | 1722 |
| New Age Cryo | 119 |
| New York Blower Company | 2021 |
| Novonesis | 717 |
| O'Connor Kiln & Dryer | 1225 |
| Ohio Lumex | 1631 |
| Olsson | 129 |
| Orbijet/Tank Cleaning Technologies, Inc. | 1633 |
| Oxidizers, Inc. | 1311 |
| P1 Service, LLC | 1730 |
| Pace Analytical Services, LLC | 433 |
| Paget Equipment Co. | 1528, 1530 |
| Painters USA | 303 |
| Perten Instruments, Inc. | 1608 |
| Phibro Ethanol | 509 |
| Pinion | 316 |
| Pinnacle Engineering, Inc. | 1624 |
| PK Safety | 1231 |
| PRAJ Industries Limited | 216 |
| Premier Industries | 120 |
| Premium Plant Services, Inc. | 1211 |
| Proflow Pumping Solutions | 1209 |
| ProQuip, Inc. | 423 |
| PROtect, LLC | 1305 |
| PS Access Solutions | 1729 |
| Quality Liquid Feeds | 208 |
| Rasmussen Mechanical Services | 2028 |
| Rayeman Elements, Inc. | 1133 |
| Refractory Service, Inc. | 924 |
| Renewable Fuels Association | 701 |
| Renewal Service Industrial (RSI) | 221, 320 |
| RMS Roller-Grinder | 1109 |
| Ronan Engineering | 1524 |
| RTP Environmental Associates, Inc. | 528 |
| SafeRack, LLC | 2007, 2008 |
| Saola Energy, LLC | 1432 |
| Schimberg Company | 1423, 1522 |
| Scott Equipment Company | 1502 |
| SECSI | 114 |
| Seneca Companies | 1223 |
| SES, Inc. Superior Environmental Solutions | 118 |
| Shandong Longda Bio-products Co., Ltd. | 1519 |
| Ship & Shore Environmental | 211 |
| Shuttlewagon | 2005 |
| Siemens Industry, Inc. | 633 |
| Solenis, LLC | 817 |
| Solutions 4 Manufacturing | 833 |
| SOS Leak Repair | 1107 |
| SPX Cooling Technologies, Inc. | 2041 |
| StoneAge Tools | 231 |
| Sukup Manufacturing Co. | 523 |
| Sulzer Pumps Solutions, Inc. | 2014, 2015, 2016 |
| Sunson Industry Group Co., Ltd. | 1605 |
| Suntaq International Limited | 1725 |
| Superlok-Mako Products | 310 |
| Sutton International | 2033 |
| Syngenta/Enogen | 801 |
| Sys-Kool Cooling Towers | 1526 |
| TCI Services, Inc. | 112 |
| Terydon, Inc. | 1419 |
| The Andersons, Inc. | 832 |
| The Waldinger Corporation | 829 |
| The Walling Company | 1404 |
| The Weitz Company | 228 |
| Topp's Mechanical, Inc.- Out of Business | 823 |
| Trace Environmental Systems, Inc. | 630 |
| Trackmobile Railcar Movers | 2045 |
| Tranter, Inc. | 1217 |
| Trident Automation, Inc. | 631, 731 |
| Trihydro Corporation | 530 |
| Trucent | 1511 |
| Twin City Fan / Clarage | 117 |
| USDA Wildlife Services | 124 |
| VAA, LLC | 726 |
| Valley Equipment Company, Inc. | 1523, 1622 |
| Veolia Water Technologies | 532 |
| Veolia Water Technologies & Solutions | 411 |
| Vertical Software, Inc. | 922 |
| VetterTec, Inc. | 322 |
| Victory Energy Operations, LLC | 830 |
| Viking Automatic Sprinkler Co. | 200 |
| Visionary Fiber Technologies | 2004 |
| Vogelbusch USA, Inc. | 628 |
| W.R. Grace & Co. | 1603 |
| Warrior Mfg., LLC | 1206 |
| Water Engineering, Inc. | 1422 |
| Waters | 709 |
| WCR Incorporated | 401, 403 |
| Westmor Industries, LLC | 925, 927 |
| Whitefox Technologies Limited | 1111 |
| Wilfley | 2035 |
| Williams Refractory Services, Inc. | 218 |
| WINBCO | 1332 |
| Winger Companies | 1709 |
| Wired Within - OUT OF BUSINESS | 333 |
| XOS | 1723 |
| Xylogenics, Inc. | 1325 |
| Xylome Corporation | 1026 |
| Zachry | 828 |
| Zenviro Tech US, Inc. | 326 |
| Zeochem, LLC | 1322 |