| Advanced BioFuels USA | 434 |
| AGI | 726 |
| AGRA Industries, Inc. | 1331 |
| Airgas Specialty Products | 331 |
| Alfa Laval, Inc. | 513 |
| American Coalition for Ethanol | 327 |
| Anderson Chemical Co. | 431 |
| Ascensus Specialties | 501 |
| Battelle | 1001 |
| BDI-BioEnergy International GmbH | 1719 |
| BetaTec Hop Products, Inc. | 912 |
| Biodiesel Magazine | 1200 |
| Boerger, LLC | 723 |
| Bronkhorst USA | 300 |
| BUCHI Corporation | 509 |
| Buckman | 1404 |
| Bushel | 1530 |
| Butterworth, Inc. | 226 |
| Chase Nedrow Industries | 539 |
| Chief AGRI | 1523 |
| Christianson PLLP | 1239 |
| Civil & Environmental Consultants, Inc. | 739 |
| Cooling Tower Depot, Inc. | 622 |
| CPM Roskamp Champion | 611 |
| Crown Americas - Crown Iron Works | 1705 |
| CSE Bliss Manufacturing, LLC | 519 |
| CTE Global, Inc. | 619 |
| D3MAX, LLC | 913 |
| Demo Plus Inc | 412 |
| DSM Bio-based Products & Services | 711 |
| DuPont Nutrition & Biosciences | 919 |
| DURR Systems, Inc. | 1513 |
| EISENMANN | 209 |
| Energy Integration, Inc. | 231 |
| Enerquip, LLC | 1427 |
| Ethanol Producer Magazine | 1219 |
| Flottweg Separation Tech | 430 |
| Growth Energy | 200 |
| Hubbell Killark | 326 |
| Hydrite Chemical Co. | 230 |
| Hydro-Thermal Corporation | 305 |
| ICM, Inc. | 1019 |
| Innospec Fuel Specialties | 605 |
| K-Coe Isom | 322 |
| Kemin Biofuels | 504 |
| Kinergetics, LLC | 1400 |
| Lallemand Biofuels & Distilled Spirits | 1008 |
| Leaf-Lesaffre Advanced Fermentations | 1501 |
| Mason Manufacturing, LLC | 627 |
| Matrix Service Company | 1701 |
| Metrohm USA | 219 |
| Midland Scientific, Inc. | 527 |
| Mitsubishi Chemical Corporation, Inc | 400 |
| NABP | 518 |
| Nalco Water, an Ecolab Company | 730 |
| Nelson Baker Biotech | 418 |
| Novozymes | 719 |
| Oxidizers, Inc. | 304 |
| PerkinElmer Life & Analytical Services | 600 |
| Phibro Ethanol Performance Group | 500 |
| Pinnacle Engineering, Inc. | 408 |
| PRAJ Industries Limited | 700 |
| ProQuip, Inc. | 401 |
| Provenio Consulting | 213 |
| PWT/H2O Innovation | 1409 |
| Qi2 Elements | 722 |
| Renewable Fuels Association | 701 |
| RTP Environmental Associates, Inc. | 626 |
| Solutions 4 Manufacturing | 205 |
| ST Equipment & Technology | 508 |
| SUEZ Water Technologies & Solutions | 624 |
| Sutton International | 1309 |
| SW Firefighting Foam & Equipment, LLC | 330 |
| Teikoku USA, Inc. | 339 |
| Trislot USA | 1338 |
| Trucent | 1119 |
| VAA, LLC | 608 |
| VIM Technologies, Inc. | 405 |
| Vogelbusch USA, Inc. | 422 |
| Water Engineering, Inc. | 301 |
| WCR Incorporated | 601 |
| Westmor Industries, LLC | 1222 |
| Whitefox Technologies Limited | 623 |
| Xylogenics, Inc. | 208 |