| 4B Components, Ltd. | 530, 532 |
| A&B Process Systems | 2022 |
| Abengoa | 808 |
| ADF Engineering | 931 |
| ADI Systems Inc. | 1331 |
| Aggreko Cooling Tower Service | 1501 |
| AGRA Industries, Inc. | 801 |
| Air Resource Specialists, Inc. | 729 |
| Alfa Laval, Inc. | 601 |
| Allied Locke Industries | 433 |
| AMEC | 226 |
| American Coalition for Ethanol | 1302 |
| American Lung Association in Minnesota | 933, 209 |
| Anderson Chemical Co. | 1108 |
| Andritz | 424 |
| Andy J. Egan Company, Inc. | 1300 |
| Angel Yeast Co., Ltd. | 1208 |
| Anitox | 606 |
| Apache Stainless Equipment Corporation | 426 |
| Arisdyne Systems | 1221, 1200 |
| Arkema, Inc. | 1415 |
| Barr Engineering | 210 |
| BASF Enzymes LLC | 331 |
| BBI International | 2025 |
| BetaTec Hop Products | 915 |
| Biofuels International | 1509 |
| Biofuels Journal | 324 |
| Bion Analytical | 1326 |
| Bismarck State College | 1506 |
| Bliss Industries, LLC | 706 |
| Briggs of Burton, Inc. | 930 |
| Brown Tank LLC | 1103 |
| Bruker Optics, Inc. | 1405 |
| Buckman | 1313 |
| Bulk Conveyors Inc | 2036, 2039, 2040 |
| Buresh Building Systems, Inc. | 1526 |
| Butamax Advanced Biofuels LLC | 1314 |
| Butterworth, Inc. | 833 |
| Carboline | 204 |
| Carter Day International | 2015 |
| CenterPoint Energy Services, Inc. | 1505 |
| Cereal Process Technologies | 1001 |
| ChemTreat, Inc. | 1131 |
| Christianson & Associates, PLLP | 301, 303 |
| CHS Renewable Fuels Marketing | 504 |
| Clayton Industries | 1427 |
| Cloud/Sellers Cleaning Systems | 1201 |
| CompuWeigh Corporation | 500 |
| Consolidated Water Solutions | 1507 |
| Conveyor Engineering & Mfg Co. | 1527 |
| Cooling Tower Depot, Inc. | 1500 |
| CPM Roskamp Champion | 1408 |
| CTE Global, Inc. | 315 |
| CTI Cooling Technology Institute | 709 |
| Direct Automation, LLC | 906 |
| DPC Industries, Inc. | 330 |
| DuPont Industrial Biosciences | 821 |
| Durr Systems, Inc. | 1504 |
| EAD Corporate | 220 |
| EcoEngineers | 214 |
| Edeniq, Inc. | 321 |
| EISENMANN | 608 |
| Emerson Process Management | 1511 |
| Enerquip, LLC | 1515 |
| Enviro-Dyne Industrial Services | 1132 |
| ERI Solutions, Inc. | 325 |
| eRPortal Software Group, LLC | 202 |
| Fagen, Inc. | 521 |
| Ferm Solutions, Inc. | 613 |
| Flottweg Separation Tech | 1013 |
| FLSmidth USA | 228 |
| Fluid Engineering | 1431 |
| Fluid Quip Process Technologies, LLC | 621 |
| Fremont Industries | 1321 |
| Frontline Warning Systems | 1521 |
| GE Water & Process Technologies | 232, 230 |
| GEA Group | 708 |
| GEA PHE Systems | 2019, 2018 |
| Genesis III | 1328 |
| Global Refractory Installers and Suppliers | 707 |
| Golder Associates | 1204 |
| Growth Energy | 901 |
| Hengye Inc. | 1203 |
| HTH Companies | 1404 |
| Hydrite Chemical | 1106 |
| Hydro-Klean, LLC | 721 |
| Hydro-Thermal Corporation | 401 |
| IBT, Inc. | 332 |
| ICM, Inc. | 1121 |
| Industrial Equipment & Parts | 1433 |
| Innospec Fuel Specialties | 731 |
| Integrated Power Services | 1428 |
| IntegroEnergy Group, Inc. | 607 |
| Interpoll Laboratories, Inc. | 1533 |
| Interra Global Corporation | 1006 |
| Interstates Companies | 1425 |
| Intertek | 1305 |
| INTL FCStone Inc. | 403 |
| Ivanhoe Industries, Inc. | 509 |
| J&D Construction, Inc. | 1301 |
| J.C. Ramsdell Enviro Services, Inc. | 2017 |
| Jacobs Corporation | 2020 |
| Jatrodiesel Inc. | 928 |
| Jianlong Molecular Sieve | 223 |
| JMENG Industries Ltd. | 211 |
| JMP | 233 |
| K & L Equipment & Mechanical, Inc. | 2023 |
| KATZEN International, Inc. | 1215 |
| K-Coe | 605 |
| Kubco Decanter Services, Inc. | 932 |
| Laidig Systems, Inc. | 1329 |
| Lakos Separators and Filtration Solutions | 1432 |
| Lallemand Biofuels & Distilled Spirits | 513 |
| Larson Engineering, Inc. | 222 |
| Leaf Technologies | 1115 |
| Lotus Mixers Inc./LOTUS Process Group LLC | 603 |
| Maas Companies | 704 |
| Magnetec Inspection, Inc. | 1524 |
| Mapcon Technologies, Inc. | 1402 |
| Mason Manufacturing, LLC | 507 |
| MCC, Inc. | 1032 |
| Mcgyan Biodiesel, LLC | 502 |
| Merjent | 609 |
| Metrohm USA | 733 |
| Midland Scientific, Inc. | 304 |
| Minnesota Bio-Fuels Association | 1423 |
| Minnesota Valley Testing Laboratories | 727 |
| Mist Chemical and Supply Co. | 2035 |
| Mole Master Services Corporation | 533 |
| Monitortech Corporation | 224 |
| MSW Consulting Inc | 908 |
| Nalco, an Ecolab Company | 1401, 1403 |
| National Corn-to-Ethanol Research Center | 725, 824 |
| Nationwide Boiler Incorporated | 1232 |
| Nelson Engineering, Inc. | 1303 |
| Neogen Corporation | 506 |
| New Age Cryo | 1015 |
| New Holland Agriculture | 905 |
| New York Blower Company | 2037 |
| North American Industrial Services, Inc. | 615 |
| Novaspect | 1513 |
| Novozymes | 1021 |
| Orbijet, Inc. and Tank Cleaning Technologies, Inc. | 633 |
| Pace Analytical Services, Inc. | 2034 |
| PANAMERICAN Hydrogen, Inc. | 2038 |
| PAQUES INC | 1525 |
| Paul Mueller Company | 1426 |
| Pentair | 328 |
| Pepper Maintenance | 322 |
| Perten Instruments, Inc. | 1333 |
| Phibro Ethanol Performance Group | 713 |
| Pinnacle Engineering, Inc. | 1026 |
| PK Safety | 1531 |
| Plant Maintenance Services, LLC | 1229 |
| Pneumat Systems, Inc. | 2013, 2014 |
| POET-DSM Advanced Biofuels | 813 |
| Polar Clean America, Polar Clean | 310 |
| Praj Industries Limited | 405, 407 |
| Premium Plant Services, Inc. | 1520 |
| ProQuip, Inc. | 1028 |
| Protectoseal Company, The | 1502 |
| Pumping Solutions, Inc. | 1413 |
| Purina Animal Nutrition LLC | 1009 |
| Quality Liquid Feeds | 320 |
| Rayeman Elements, Inc. | 201 |
| Refractory & Insulation Supply, Inc. | 213 |
| Refractory Service, Inc. | 1030 |
| Renewable Fuels Association | 501 |
| Renewal Service Inc. | 2033 |
| Rotary Airlock, LLC | 1101 |
| RTP Environmental Associates, Inc. | 929 |
| RWT, Inc. | 2016 |
| Schimberg Company | 431 |
| Schneider Electric | 1003 |
| Schroeder Environmental Cleaning Services Inc | 828 |
| Scott Equipment Company | 528 |
| Seneca Companies | 1202 |
| Siemens Industry, Inc. | 724, 726 |
| Sinobio (Shanghai) Imp & Exp Co., Ltd. | 1508 |
| Solenis LLC | 921 |
| SOS Leak Repair | 907 |
| Sponge-Jet | 806 |
| Sukup Manufacturing Co. | 1109 |
| Sulzer Pumps Solutions, Inc. | 700, 702 |
| Sundial Solar | 1129 |
| Superior Process Technologies | 830 |
| Swanson Flo-Systems Co. | 1113 |
| Syngenta: Enogen | 701 |
| Tank Consultants Inc | 826 |
| The Cary Company | 203 |
| The Walling Company | 1007 |
| Thermal Energy Products, Inc. | 1523 |
| Total Filtration Services | 1228 |
| Tower Performance, Inc | 927 |
| Tracerco | 1330, 1332 |
| TRAMCO (AGI) | 1307 |
| Tranter, Inc. | 312, 314 |
| Trident Automation, Inc. | 625, 627 |
| Trihydro Corporation | 302 |
| Trillium Industrial Services | 327 |
| U.S. Energy Services, Inc. | 807 |
| U.S. Grains Council | 326 |
| U.S. Water | 413 |
| United Sorghum Checkoff Program | 1231 |
| VAA, LLC-Van Sickle, Allen & Associates | 1133 |
| Vac-U-Max | 1327 |
| Valicor Separation Technologies | 631 |
| Veolia Water Technologies | 809 |
| Vertical Software, Inc | 1400 |
| Victory Energy | 1206 |
| Viking Automatic Sprinkler Co. | 200 |
| VistaComm | 1503 |
| Vogelbusch USA, Inc. | 1230 |
| Walinga USA Inc | 829 |
| Warrior MFG | 1033 |
| Waters Corporation | 1522 |
| WB Services, LLC | 421, 429 |
| WCR Incorporated | 212 |
| Westmor Fluid Solutions | 1407, 1409 |
| Whitefox Technologies Limited | 531 |
| WINBCO | 1421 |
| Zachry | 1105 |
| Zeochem, LLC | 1107 |