| A E Resources, Inc. | 1727 |
| ADF Engineering | 1231 |
| AGRA Industries, Inc. | 1112 |
| Air Resource Specialists, Inc. | 938 |
| Airgas Specialty Products | 227 |
| AirPro Fan & Blower Company | 734 |
| A-Lert Construction Services | 1427 |
| Allied Powers, LLC | 426 |
| Allied Valve, Inc. | 831 |
| Anderson Chemical Co. | 2123 |
| Apache Stainless Equipment Corporation | 430 |
| Applied Material Solutions, Inc. | 1331 |
| Archangel Inc. | 1612 |
| Ascensus Specialties | 934 |
| Battelle | 1001 |
| BDI-BioEnergy International GmbH | 704 |
| BetaTec Hop Products, Inc. | 912 |
| Bilfinger Inc. | 1639 |
| BioFuels Automation | 722 |
| Biofuels International | 1730 |
| Biomass Engineering & Equipment | 1723 |
| Bion Companies | 1213 |
| Bird Control Group | 331 |
| Bliss Industries, LLC | 1209 |
| Boerger, LLC | 1401 |
| Bray International, Inc. | 1722 |
| Bronkhorst USA | 300 |
| Brown Tank, LLC | 835 |
| Buckman | 1039 |
| Bulk Conveyors, Inc. | 906 |
| Buresh Building Systems | 1108 |
| Burns & McDonnell | 1012 |
| Bushel | 1531 |
| Butterworth, Inc. | 234 |
| Caloris Engineering | 531 |
| Campbell-Sevey | 218 |
| Chase Nedrow Manufacturing, Inc. | 1539 |
| Chief AGRI | 1523 |
| Christianson PLLP | 1239 |
| Civil & Environmental Consultants, Inc. | 1400 |
| CompuWeigh Corporation | 1200 |
| Conveyor Engineering & Mfg Co. | 1635 |
| Cooling Technology Institute | 630 |
| Cooling Tower Depot, Inc. | 1104 |
| CPM Roskamp Champion | 500 |
| Crown Americas - Crown Iron Works | 1705 |
| CSE Bliss Manufacturing, LLC | 827 |
| CTE Global, Inc. | 619 |
| C-TEC AG | 235 |
| D3MAX, LLC | 913 |
| Decker Electric, Inc. | 2104 |
| Demo Plus Inc | 2100 |
| Direct Automation, LLC | 608 |
| Dowco Valve Company | 400 |
| DraCool-USA | 1038 |
| Draeger Safety | 239 |
| DSM Bio-based Products & Services | 711 |
| DuPont Nutrition & Biosciences | 919 |
| DURR Systems, Inc. | 1513 |
| DXP Enterprises | 212 |
| Eco Specialized Services | 735 |
| EISENMANN | 1139 |
| Electric Pump, Inc. | 1534 |
| Energy Integration, Inc. | 231 |
| Enerquip, LLC | 1308 |
| Enertech Solutions, Inc. | 2140 |
| Enviro-Dyne Industrial Services | 530 |
| Enviroserve | 738 |
| Ethanol Producer Magazine | 1815 |
| EvapTech, Inc. | 334 |
| Flottweg Separation Tech | 1031 |
| Fluid Quip Technologies, LLC | 611 |
| Fluid Technology Corporation | 1501 |
| Foundation Analytical Laboratory, Inc. | 1205 |
| Franzenburg Centrifuge | 1519 |
| GEA North America | 539 |
| General Repair Service | 2143 |
| Genesis III | 313 |
| Gilbert Industries, Inc. | 905 |
| Global Refractory Installers & Suppliers | 1004 |
| Good Land Industrial | 1435 |
| Graver Technologies | 2142 |
| Growth Energy | 819 |
| GSI Group | 1238 |
| Hammelmann Corp. | 200 |
| Hengye, Inc. | 409 |
| Hubbell Killark | 326 |
| Hupp Electric Motors | 1538 |
| Hydrite Chemical Co. | 1105 |
| Hydro-Thermal Corporation | 1439 |
| ICM, Inc. | 1019 |
| Industrial Equipment & Parts | 1223 |
| Innospec Fuel Specialties | 605 |
| Innovative Technologies | 213 |
| Integrated Power Services | 308 |
| Interra Global Corporation | 419 |
| J&D Construction, Inc. | 1204 |
| J.C. Ramsdell Enviro Services, Inc. | 1431 |
| Jacobs Corporation | 1535 |
| Jasper Engineering & Equipment Company | 1305 |
| KATZEN International, Inc. | 909 |
| K-Coe Isom | 318 |
| Kemin Biofuels | 504 |
| Kinergetics, LLC | 205 |
| Koch-Glitsch LP | 2133 |
| Komax Systems, Inc. | 639 |
| Komline-Sanderson | 1526 |
| Kurita America | 801 |
| L&M Ethanol Maintenance Contracting, Inc. | 2103 |
| Laidig Systems, Inc. | 2137 |
| Lallemand Biofuels & Distilled Spirits | 1008 |
| Leaf-Lesaffre Advanced Fermentations | 519 |
| Lotus Mixers, Inc./LOTUS Process Group, LLC | 438 |
| Louisville Dryer Company | 2115 |
| Maas Companies, Inc. | 631 |
| Mapcon Technologies, Inc. | 1408 |
| Mason Manufacturing, LLC | 627 |
| Matrix Service Company | 1701 |
| McC, Inc. | 1101 |
| Mechanical Systems Incorporated | 1738 |
| Metrohm USA | 219 |
| Meylan Enterprises, Inc | 2139 |
| Midland Scientific, Inc. | 527 |
| Midwest Cooling Towers, Inc. | 623 |
| Midwest Ironworks | 2117 |
| Minnesota Bio-Fuels Association, Inc. | 405 |
| Mitsubishi Chemical Corporation, Inc | 1123 |
| MoistTech Corp. | 422 |
| Mole Master Services Corporation | 1201 |
| Montrose Environmental Group, Inc. | 839 |
| MVTL Laboratories | 926 |
| Myande Group Co., Ltd. | 1627 |
| National Corn-to-Ethanol Research Center | 413 |
| NextChem & Saola | 1419 |
| NightStick By Bayco Products, Inc. | 935 |
| NLB Corp. | 1726 |
| Novozymes | 723 |
| Nucleus AG & Bio-Products | 513 |
| O'Connor Kiln & Dryer | 739 |
| Orbijet/Tank Cleaning Technologies, Inc. | 338 |
| Oxidizers, Inc. | 1219 |
| P1 Group, Inc. | 204 |
| Paget Equipment Co. | 1135 |
| Painters USA, Inc. | 304 |
| PerkinElmer Life & Analytical Services | 1509 |
| Pinnacle Engineering, Inc. | 330 |
| Plasma Blue | 1613 |
| PRAJ Industries Limited | 700 |
| Prodek | 1530 |
| ProQuip, Inc. | 1127 |
| PWT/H2O Innovation | 434 |
| Qi2 Elements | 222 |
| Quad County Corn Processors | 238 |
| Rapid Fire Protection, Inc. | 1609 |
| Rasmussen Mechanical Services | 2121 |
| Rayeman Elements, Inc. | 1619 |
| Refractory Service, Inc. | 930 |
| Reliable Turbine Services, Inc. | 201 |
| Renewable Fuels Association | 701 |
| Renewal Service, Inc. (RSI) | 927 |
| Richard Industrial Group | 1604 |
| RTP Environmental Associates, Inc. | 309 |
| SafeRack, LLC | 1339 |
| Schimberg Company | 1227 |
| Schroeder Environmental Cleaning | 226 |
| Scott Equipment Company | 939 |
| Separator Technology Solutions | 1505 |
| SEPCO | 838 |
| SES, Inc. Superior Environmental Solutions | 431 |
| SGS North America, Inc. | 1630 |
| Shuttlewagon | 2145, 1739 |
| Siemens Industry, Inc. | 439 |
| Solar Turbines Incorporated | 1313 |
| Solutions 4 Manufacturing | 1713 |
| SOS Leak Repair | 1413 |
| SPX Cooling Technologies, Inc. | 1841 |
| ST Equipment & Technology | 2119 |
| SUEZ Water Technologies & Solutions | 1319 |
| Sukup Manufacturing Co. | 1100 |
| Sulzer Pumps Solutions, Inc. | 2110 |
| Sutton International | 1309 |
| SWEDISH EXERGY AB | 2101 |
| Sys-Kool Cooling Towers | 1301 |
| Teikoku USA, Inc. | 1623 |
| Terydon, Inc. | 305 |
| tetraSOLV | 1631 |
| The Walling Company | 418 |
| The Weitz Company | 335 |
| Topp's Mechanical, Inc. | 726 |
| Total Meter services Inc | 600 |
| Tranter, Inc. | 1113 |
| Trident Automation, Inc. | 535, 435 |
| Trihydro Corporation | 635 |
| Trislot USA | 1719 |
| Trucent | 1119 |
| VAA, LLC | 807 |
| Valley Equipment Company, Inc. | 1013 |
| Veolia Water Technologies | 638 |
| Vertical Software, Inc. | 401 |
| Viking Automatic Sprinkler Co. | 509 |
| Visionary Fiber Technologies | 1608 |
| Vogelbusch USA, Inc. | 408 |
| W.R. Grace & Co. | 1708 |
| Warrior Mfg., LLC | 1338 |
| Water Engineering, Inc. | 1709 |
| Water Tech, Inc. | 1009 |
| WCR Incorporated | 1409 |
| Westmor Industries, LLC | 1222 |
| Whitefox Technologies Limited | 813 |
| Williams Refractory Services, Inc. | 322 |
| WINBCO | 412 |
| Winger Companies | 1600 |
| WS Industrial Services | 501 |
| Xylogenics, Inc. | 208 |
| Zachry | 601 |
| Zeochem, LLC | 1330 |