| 4B Components, Ltd. | 303 |
| A&B Process Systems | 2020 |
| A.R. Wilfley & Sons, Inc. | 429 |
| ADF Engineering | 424 |
| ADI Systems, Inc. | 1131 |
| Advanced Process Solutions | 1623 |
| Ag Growth International | 1301 |
| Aggreko Cooling Tower Service | 212 |
| AGRA Industries, Inc. | 906 |
| Air Resource Specialists, Inc. | 826 |
| AirClean Energy | 1625 |
| AirPro Fan & Blower Company | 1426 |
| Albarrie Environmental Services Limited | 407 |
| Alfa Laval, Inc. | 729 |
| Alliance Tank Service, LLC | 1202 |
| Allied Locke Industries | 332 |
| Allied Valve, Inc. | 508 |
| AMCM-Association Motor Club Marketing | 231 |
| AMEC | 528 |
| American Coalition for Ethanol | 605 |
| Anderson Chemical Co. | 609 |
| Angel Yeast Co., Ltd. | 829 |
| Anitox | 1106 |
| Apache Stainless Equipment Corporation | 1327 |
| Applied Material Solutions, Inc. | 713 |
| Arkema, Inc. | 1215, 1314 |
| ATEK Technolgies | 2045 |
| Badger Meter | 328 |
| Barr Engineering | 832 |
| BASF Enzymes, LLC | 331 |
| BBI International | 1429 |
| BetaTec Hop Products | 915 |
| BioFuels Automation University | 631 |
| Biofuels International | 1525 |
| Bion Analytical | 702 |
| Bismarck State College - National Energy Center of Excellence | 1626 |
| Bliss Industries, LLC | 1403 |
| Bloc Environmental Solutions | 1629 |
| Boerger, LLC | 1601 |
| Brown Tank, LLC | 809 |
| Bruker Optics, Inc. | 1206 |
| BRUKS Rockwood, Inc. | 1229 |
| BSI Engineering, Inc. | 633, 732 |
| Buckman | 507 |
| Buhler, Inc./Mill Technology Company | 1101 |
| Bulk Conveyors, Inc. | 929 |
| Buresh Building Systems, Inc. | 1230 |
| Burns & McDonnell | 1515 |
| Butamax Advanced Biofuels, LLC | 908 |
| Carl Zeiss Spectroscopy GmbH | 1603 |
| CECO Services | 1604 |
| CEDA International Corporation | 2102 |
| Cenco | 221 |
| Cereal Process Technologies, LLC | 321 |
| ChemTreat, Inc. | 1303 |
| Christianson PLLP | 532 |
| Christy Catalytics, LLC | 201 |
| CHS Renewable Fuels Marketing | 607 |
| Clayton Industries | 2027 |
| Cloud/Sellers Cleaning Systems | 1201 |
| Columbia Pipe & Supply | 501 |
| Compli Associates | 704 |
| CompuWeigh Corporation | 933 |
| Conveyor Engineering & Mfg Co. | 203 |
| Cooling Tower Depot, Inc. | 214 |
| Corval Group | 1331 |
| CPM Roskamp Champion | 1233 |
| CSE Bliss Manufacturing, LLC | 1602 |
| CTE Global, Inc. | 715 |
| C-TEC, Inc. | 1631 |
| CTI Cooling Technology Institute | 1609, 2101 |
| D3MAX LLC | 1315 |
| Dedert Corporation | 1032 |
| Delta Cooling Towers, Inc. | 232 |
| Direct Automation, LLC | 807 |
| Donaldson Torit | 830 |
| Dowco Valve Company | 530 |
| Draeger Safety | 1508 |
| DuPont Industrial Biosciences | 821 |
| Durr Systems, Inc. | 300 |
| Eagle Services Corporation | 1107 |
| EcoEngineers | 1330 |
| Edeniq, Inc. | 1015 |
| EISENMANN | 1332 |
| Elemental Air | 927 |
| Elementar Americas | 220 |
| Energy Integration, Inc. | 1430 |
| Energy Management Solutions | 1133 |
| Engineered Flexible Products, Inc. | 1411 |
| Engineering America, Inc. | 1204 |
| Enviro-Dyne Industrial Services | 230 |
| Environmental Concerns, Inc. | 228 |
| Epoxy Flooring Systems, LLC | 1628 |
| ERI Solutions, Inc. | 1305 |
| EvapTech, Inc. | 1622 |
| Fagen, Inc. | 513 |
| Ferm Solutions, Inc. | 2024 |
| Fisher Tank Company | 1425 |
| Flottweg Separation Tech | 1113 |
| Fluid Quip Process Technologies, LLC | 1115 |
| Fluid-Quip, Inc. | 1520 |
| Foundation Analytical Laboratory, Inc. | 1408 |
| Fremont Industries | 901 |
| Fusion Boiler Works, Inc. | 1606 |
| GE Water & Process Technologies | 421 |
| GEA Group | 533 |
| Genesis III | 1409 |
| Gilbert Industries, Inc. | 1200 |
| Global Refractory Installers & Suppliers | 907 |
| Golder Associates | 1103 |
| GP Strategies Corporation | 1406 |
| Growth Energy | 701 |
| GSI Group | 224 |
| Guild Associates | 223 |
| Hammelmann Corp. | 1600 |
| Heartland Energies | 320 |
| Hengye, Inc. | 808 |
| Honeywell Process Solutions | 1529 |
| HTH Companies | 1632 |
| Hudson Products Corp./Cofimco USA | 401 |
| Hupp Electric Motors | 932 |
| Hydrite Chemical Co. | 708 |
| Hydro-Klean, LLC | 721 |
| Hydro-Thermal Corporation | 1333 |
| ICM, Inc. | 1121 |
| Industrial Equipment & Parts | 2026, 2025 |
| Industrial Sales Solutions, LLC | 202 |
| Infosight Corp. | 1613 |
| Innospec Fuel Specialties | 504 |
| Innovative Plant Solutions, Inc. | 733 |
| Innovative Technologies | 1502 |
| Integrated Power Services | 1413 |
| IntegroEnergy Group, Inc. | 502 |
| Interpoll Laboratories, Inc. | 1028 |
| Interra Global Corporation | 1006 |
| Interstates Companies | 1129 |
| Intertek | 205 |
| INTL FCStone, Inc. | 2037 |
| Ivanhoe Industries, Inc. | 411 |
| J&D Construction, Inc. | 500 |
| J.C. Ramsdell Enviro Services, Inc. | 433 |
| J.T. Thorpe & Son, Inc. | 1610 |
| Jacobs Corporation | 2018 |
| Jasper Engineering & Equipment Company | 1402 |
| Jatrodiesel, Inc. | 431 |
| Johnson Screens | 1522 |
| K & L Equipment & Mechanical, Inc. | 2023 |
| Kato Biomass Technology Co., Ltd. | 229 |
| KATZEN International, Inc. | 1415 |
| Kelvion | 204 |
| Kemin Industries | 1524 |
| Kinect Energy Group | 1400 |
| Kinsley Energy Systems (KES) | 1507 |
| Koch Knight LLC | 226 |
| Koch Specialty Plant Services, LLC | 1506 |
| Komax Systems, Inc. | 403 |
| L&M Ethanol Maintenance Contracting, Inc. | 1007 |
| Lallemand Biofuels & Distilled Spirits | 1221 |
| Langhauser Associates, Inc. | 322 |
| Larson Engineering, Inc. | 1030 |
| Leaf-Lesaffre Advanced Fermentations | 621 |
| Lechler, Inc. | 210 |
| Liquid Engineering Corporation | 1513 |
| Lotus Mixers, Inc./LOTUS Process Group, LLC | 302 |
| Maas Companies, Inc. | 1423 |
| Mapcon Technologies, Inc. | 1428 |
| Mason Manufacturing, LLC | 1228 |
| MCC, Inc. | 1105 |
| Mcgyan Biodiesel, LLC | 1605 |
| Merjent | 1026 |
| Metrohm USA | 1607 |
| Midland Scientific, Inc. | 1231 |
| Midwest Cooling Towers, Inc. | 1611 |
| Miller Mechanical Specialties, Inc. | 1615 |
| Minnesota Bio-Fuels Association, Inc. | 1329 |
| Mist Chemical & Supply Co. | 1307 |
| Mitsubishi Chemical Corporation | 1405 |
| Mole Master Services Corporation | 813 |
| Montrose Environmental Group, Inc. | 2106 |
| Moore Fans, LLC | 1612 |
| MSW Consulting, Inc. | 615 |
| MVTL Laboratories | 506 |
| Nalco Water | 213 |
| National Corn-to-Ethanol Research Center | 613 |
| Nationwide Boiler, Inc. | 2017 |
| Nelson Engineering, Inc. | 315 |
| Neogen Corporation | 706 |
| Nestec, Inc. | 600 |
| New York Blower Company | 1432 |
| Nooter Construction | 930 |
| North American Services Group | 815 |
| Novaspect | 423 |
| Novozymes | 1021 |
| Nucleus AG & Bio-Products | 1621 |
| O'Connor Kiln & Dryer | 1514 |
| Olsson Associates, Inc. | 216 |
| Orbijet, Inc. | 2016 |
| Oxidizers, Inc. | 233 |
| Pace Analytical Services, Inc. | 1109 |
| Painters USA, Inc. | 1401 |
| Peinemann Equipment | 208 |
| Peli Biochem Technology Shanghai | 1614 |
| Pentair | 928 |
| Perten Instruments, Inc. | 227 |
| Phibro Ethanol Performance Group | 521 |
| Pinnacle Engineering, Inc. | 326 |
| PK Safety | 405 |
| Plant Maintenance Services, LLC | 1227 |
| Prairie AquaTech | 2046 |
| Praj Industries Limited | 1521 |
| Premium Plant Services, Inc. | 1421 |
| Professional Engineering Consultants, Inc. | 1633 |
| ProQuip, Inc. | 828 |
| Pumping Solutions, Inc. | 1313 |
| Quality Liquid Feeds | 1627 |
| R&R Contracting, Inc. | 1503 |
| Rapid Fire Protection, Inc. | 325 |
| Rasmussen Mechanical Services | 2039 |
| Rayeman Elements, Inc. | 2000 |
| Refractory Service, Inc. | 1302 |
| Renewable Fuels Association | 1001, 1003 |
| Renewal Service, Inc. (RSI) | 1326 |
| Riesa Construction | 1504 |
| Roadway Worker Training (RWT) | 1512 |
| Rockwell Automation | 426 |
| RTP Environmental Associates, Inc. | 931 |
| S&S Technical, LLC | 200 |
| SafeRack, LLC | 1510 |
| Saola Energy, LLC | 833 |
| Sartorius Corporation | 222 |
| Schimberg Company | 526 |
| Schroeder Environmental Cleaning | 709 |
| Scott Equipment Company | 427 |
| Seneca Companies | 1208 |
| Siemens Energy, Inc. | 1501 |
| Siemens Industry, Inc. | 625, 724 |
| Solenis, LLC | 921 |
| SOS Leak Repair | 1013 |
| StoneAge, Inc. | 301 |
| Strobel Energy Group | 2105 |
| Sukup Manufacturing Co. | 806 |
| Sulzer Pumps Solutions, Inc. | 2033, 2034, 2035 |
| Sumitomo Drive Technologies | 327 |
| Sunson Industry Group Co., Ltd. | 308 |
| Syngenta: Enogen | 801 |
| Sys-Kool Cooling Towers | 1527 |
| T.E. Ibberson Company | 304 |
| Tactical Safety Solutions | 2038 |
| TCI Services, Inc. | 707 |
| Team Industrial Services | 1505 |
| Teikoku USA, Inc. | 1620 |
| Tekleen-Automatic Filters, Inc. | 503 |
| Terydon, Inc. | 206 |
| Texas A&M University | 2104 |
| Texol Corporation USA / Ability Engineering | 1624 |
| The Walling Company | 824 |
| Thompson Dryers | 1511 |
| Thorpe Specialty Services Corporation | 1630 |
| TOMCO2 Systems | 1300 |
| Topp's Mechanical, Inc. | 1500 |
| Total Valve | 2103 |
| Tracerco | 2019 |
| Tranter, Inc. | 415 |
| Trident Automation, Inc. | 627, 726 |
| Trihydro Corporation | 1531 |
| U.S. Water | 1321 |
| Urban Air Initiative, Inc. | 1033, 1132 |
| VAA, LLC | 2022 |
| Valicor Separation Technologies | 215 |
| Valley Equipment Company, Inc. | 1009 |
| Vaughan Co., Inc. | 1533 |
| Veolia Water Technologies | 2040 |
| Vertex Railcar Corporation | 1404 |
| Vertical Software, Inc. | 510 |
| VetterTec, Inc. | 409 |
| Victory Energy | 1309 |
| Viking Automatic Sprinkler Co. | 1203 |
| Vogelbusch USA, Inc. | 1108 |
| W.R. Grace & Co. | 1407 |
| Warrior Mfg., LLC | 1328 |
| WCR Incorporated | 603 |
| Welding Training Solutions, Inc. | 2041 |
| Westmor Industries, LLC | 207, 209 |
| Whitefox Technologies Limited | 601 |
| Williams Refractory Services, Inc. | 1523 |
| WINBCO | 731 |
| Wired Within | 1232 |
| Xylogenics, Inc. | 306 |
| Xylome Corporation | 727 |
| Zachry | 831 |
| Zeochem, LLC | 725 |