| 4B Components, Ltd. | 1714, 1615 |
| ADF Engineering, Inc. | 831 |
| Aecometric Corporation | 2012 |
| AGRA Industries, Inc. | 807 |
| Aldon Company Inc. | 437 |
| Alfa Laval, Inc. | 739, 737 |
| Allen Blasting and Coating | 1829 |
| Alliance Technical Group | 638 |
| Allied Tank and Construction | 1139 |
| Allied Valve, Inc. | 625 |
| American Coalition for Ethanol | 701, 800 |
| American Engineering Testing, Inc. | 537 |
| AmeriWater | 830 |
| Amertech Tower Services | 1701 |
| Anderson Chemical Co. | 738 |
| Angel Yeast Co., Ltd. | 1815 |
| Apache Industrial Services, Inc. | 1805 |
| Apache Stainless Equipment Corporation | 1729 |
| Apex Industrial Solutions, Inc. | 1737 |
| Apex Water & Process | 1502, 1500 |
| API Solutions, LLC | 1435 |
| Applied Material Solutions, Inc. | 736, 637 |
| Applied Products Thermal Products Group | 934 |
| Aquatech | 1603 |
| ArrowUp | 1517 |
| ASI Industrial | 1503 |
| Barnhart Crane & Rigging | 529 |
| Baron Filtration Co., Inc. | 1400 |
| Barr Engineering Co. | 602 |
| BASF Corporation | 423 |
| Battelle | 1301 |
| Bay West, LLC | 237 |
| Bestzyme Corporation | 1101 |
| BetaTec Hop Products, Inc. | 1423 |
| Beyond (a christianson company) | 1439 |
| BioFuels Automation | 1415 |
| BioIntelligence Technologies Inc. | 2010 |
| Bioleap, Inc | 2041, 2042 |
| Biomass Magazine | 623 |
| Bion Companies | 1132 |
| Bison Engineering, Inc. | 534 |
| Bluewater Energy Solutions | 1536 |
| Boerger, LLC | 333 |
| BOSS Railcar Movers | 409 |
| Brawn Mixer,Inc. | 1507 |
| Brown Tank, LLC | 1534 |
| BRUKS SIWERTELL | 515 |
| Buhler, Inc. | 533 |
| Bulk Conveyors, Inc. | 1808 |
| Buresh Building Systems | 508 |
| Burns & McDonnell | 1206 |
| Butterworth, Inc. | 500 |
| Calbrandt, Inc. | 233 |
| Caldwell/Preload | 535 |
| Campbell-Sevey | 1637 |
| Canadian Tank & Vessel | 907 |
| CapCO2 Solutions | 516 |
| Carbis Solutions Group, LLC | 1308, 1209 |
| Carter Day International | 438 |
| CCS Group | 339 |
| CEM Corporation | 609 |
| CEMTEK KBV-Enertec | 1402 |
| Chase Nedrow Industries | 1625 |
| ChemTreat, Inc. | 1035 |
| Christianson PLLP | 1438 |
| CIBO Technologies | 1804 |
| CL Construction | 317 |
| Clariant Corporation | 416 |
| Clear Solutions USA, LLC | 435 |
| Cleaver-Brooks | 338 |
| Climate Engineers | 436 |
| Combustion & Energy Systems | 606 |
| CompuWeigh Corporation | 1000 |
| Control Union USA | 306 |
| Conveyor Engineering & Mfg. Co. | 2040 |
| Cooling Technology Institute (CTI) | 1135 |
| Cooling Tower Depot, Inc. | 511, 232 |
| Corrosion Fluid Products / FCX Performance | 400 |
| Corval Group | 1530 |
| C-P Systems | 639 |
| CPM | 1617 |
| CPM Crown Global Companies | 1716 |
| Crane Engineering | 1830 |
| CTE Global, Inc. | 1323 |
| CWS Construction Services | 905 |
| D3MAX, LLC | 823, 922 |
| dataPARC | 1828 |
| Decker Electric, Inc. | 725 |
| Dedert Corporation | 600 |
| Delta CleanTech Inc. | 1833 |
| Demo Plus, Inc. | 1605 |
| Diamond R Industries | 332 |
| Direct Companies | 1008 |
| Distribution By Air | 430 |
| Dowco Valve Company | 1504 |
| Durr Systems, Inc. | 825 |
| DXP Enterprises | 1515 |
| Eagle Services Corporation | 1033 |
| Eco Industrial Services | 1335 |
| EcoEngineers | 702, 700 |
| Ecolab, Inc. | 1239 |
| Electro-Sensors, Inc. | 432 |
| Emerson Measurement | 2033, 2034, 2035 |
| Energy Integration, Inc. | 1436 |
| Enertech Solutions, Inc. | 324 |
| Entecco Filtration Technology, Inc. | 708 |
| Enviro-Dyne Industrial Services | 936 |
| EnviroLogix, Inc. | 1539 |
| EvapTech, Inc. | 2013 |
| Evergreen Engineering, Inc. | 514 |
| EXPRO Controls | 531 |
| Fagen, Inc. | 523 |
| Federal Screen Products, Inc. | 605 |
| Ferguson Industrial | 1238, 1236 |
| Ferm Solutions, Inc. | 838 |
| FEW Exhibit Sales Center | 201 |
| Fiber Chem, Inc. | 216 |
| Financial Wealth Solutions | 729 |
| Flottweg Separation Tech | 937 |
| Fluid Process Equipment, Inc. | 837 |
| Fluid Quip Technologies, LLC | 1215 |
| FNA Inc. | 530 |
| Foundation Analytical Laboratory, Inc. | 939 |
| Franzenburg Centrifuge | 506, 504 |
| G Tech USA | 1129 |
| GALLOP | 417 |
| GEA Group | 1538 |
| Gilbert Industries, Inc. | 1311 |
| Global Refractory Installers & Suppliers | 1437 |
| Good Land Industrial | 908 |
| GPM, Inc. | 1739 |
| Grace Consulting, Inc. | 402 |
| Growth Energy | 1123 |
| H2O Innovation | 1010 |
| Hamilton Company | 1401 |
| Helle Engineering | 239 |
| Hengye, Inc. | 828 |
| Howden | 1733 |
| Hrvyst | 2046 |
| HTH Companies | 1601 |
| Hupp Electric Motors | 705 |
| Hydrite Chemical Co. | 710 |
| Hydro-Thermal Corporation | 706 |
| ICM, Inc. | 923 |
| IFF | 1023 |
| incite.ag | 1434 |
| Industrial Equipment & Parts | 834, 832 |
| Industrial Sales Solutions, LLC | 1501 |
| Innospec Fuel Specialties | 314 |
| Innovative Plant Solutions, Inc. | 1310 |
| Innovative Technologies | 2045 |
| Inoxilos S.L. (HERPASA) | 2008 |
| Integrated Global Services | 1136 |
| IntegroEnergy Group, Inc. | 1403 |
| Interra Global Corporation | 1303 |
| Interstate Energy Systems | 405 |
| Interstates, Inc. | 1410 |
| iRely, LLC | 1734 |
| Iron Eagle Industrial Services | 1736 |
| J&D Construction, Inc. | 909 |
| J.C. Ramsdell Enviro Services, Inc. | 1131 |
| Jackson Industrial Construction | 1234 |
| Jacobs Global | 415 |
| Jamar Contracting | 1429 |
| Jasper Engineering & Equipment Company | 1813 |
| JMC Industrial Sales | 2019 |
| KATZEN International, Inc. | 1011, 1110 |
| Keit Industrial Analytics | 1115 |
| Kemin Bio Solutions | 804 |
| KFI Engineers | 634 |
| Kice Industries, Inc. | 223 |
| Kinetic Industry | 636 |
| Knight Material Technologies | 1604 |
| Knobelsdorff Electric | 510 |
| Koch Engineered Solutions | 2017, 2018 |
| Komax Systems, Inc. | 1715 |
| Kubco Services, LLC | 536 |
| Kurita America | 1001 |
| L&M Ethanol Maintenance Contracting, Inc. | 2011 |
| Laidig Systems, Inc. | 835 |
|
| Lallemand Biofuels & Distilled Spirits | 915 |
| Lapis Energy | 1211 |
| Leaf by Lesaffre | 1417 |
| LEEM Filtration | 904 |
| Lotus Mixers, Inc./LOTUS Process Group, LLC | 930 |
| Louisville Dryer Company | 1639 |
| LucasE3 Engineering | 1725, 1824 |
| Maas Companies, Inc. | 1002 |
| Macon Construction | 229 |
| Malloy Electric | 1505 |
| Mapcon Technologies, Inc. | 1130 |
| Mason Manufacturing, LLC | 928 |
| Master Packing & Rubber Company (MPRC) | 429 |
| McC, Inc. | 833 |
| McGough Construction | 2007 |
| Mechanical Systems, Inc. | 1800 |
| Mega Engineering | 603 |
| Merjent, Inc. | 1230 |
| Metrohm USA | 611 |
| Midland Scientific, Inc. | 704 |
| Mid-States Companies | 610 |
| Midwest Cooling Tower Services | 2009 |
| Midwest Cooling Towers, Inc. | 829 |
| Midwest Ironworks | 1704 |
| Miller Mechanical Specialties, Inc. | 1610, 1608 |
| Minnesota Bio-Fuels Association, Inc. | 1133 |
| Modern | 329 |
| MoistTech Corp. | 1307 |
| Mole Master Services Corporation | 902, 900 |
| Montrose Environmental Group, Inc. | 1532 |
| NABP | 815 |
| Nalco Water, an Ecolab Company | 1237 |
| National Corn-to-Ethanol Research Center | 1315 |
| Nelson Baker Biotech | 1305 |
| Neogen Corporation | 431 |
| Nestec, Inc. | 731 |
| Neuman & Esser USA, Inc. | 1528 |
| New Age Cryo | 1103 |
| North American SAF Conference & Expo | 316, 217 |
| Northern Plains Rail Services | 328 |
| Novaspect, Inc. | 2032 |
| Novonesis | 1223 |
| Oxidizers, Inc. | 617 |
| P1 Service, LLC | 1709 |
| PAC LP | 2021 |
| Pace Analytical Services, LLC | 607 |
| Paget Equipment Co. | 1425 |
| Painters USA | 1406 |
| Pelican Energy Consultants | 608 |
| PerkinElmer, Inc. | 2044 |
| Phase Biolabs, Inc. | 735 |
| Phibro Ethanol | 715 |
| Piller TSC Blower Corporation | 411 |
| Pinion | 1137 |
| Pinnacle Engineering, Inc. | 1006 |
| Pivot Clean Energy Co. | 805 |
| Plaas Incorporated | 722 |
| Pneumat Systems, Inc. | 2014, 2015 |
| PRAJ Industries Limited | 1623 |
| Premium Plant Services, Inc. | 1117 |
| Pro Maintenance Inc. | 2048 |
| ProcessBarron | 403 |
| Proflow Pumping Solutions | 2006 |
| ProQuip, Inc. | 1031 |
| PROtect, LLC | 1430 |
| Proteum Energy, LLC | 1208 |
| PSRG, Inc. | 308 |
| Qi2 Elements | 630 |
| Quality Liquid Feeds | 315 |
| RadarRadar | 301 |
| RailPros Inc. | 501 |
| Rasmussen Mechanical Services | 839 |
| RCM Engineering-Thermal Kinetics | 1816 |
| Refractory Service, Inc. | 1806 |
| Renewable Fuels Association | 1201 |
| Renewal Service Industrial (RSI) | 517 |
| Rentech Boiler Systems, Inc. | 1635 |
| RESA Power | 903 |
| Robinson Fans, Inc. | 1404 |
| Rondo Energy, Inc. | 414 |
| RTP Environmental Associates, Inc. | 803 |
| Rudolph Research Analytical | 1309 |
| Ryan & Associates, Inc. | 932 |
| S.T. Cotter Turbine Services, Inc. | 502 |
| Salof Ltd., Inc. | 628 |
| Sangati Berga S.A. | 322 |
| Saola Energy, LLC | 1015 |
| Schad Refractory Construction Co. | 1831 |
| Schimberg Company | 1331, 1329, 1333 |
| Scott Equipment Company | 439 |
| SCS Engineers | 1037 |
| SCS Global Services | 1004 |
| Seaton Construction Group | 824 |
| SECSI | 632 |
| Sentrimax Centrifuges (USA), Inc. | 1738 |
| Separator Technology Solutions | 1337 |
| SEPCO Sealing Equipment Products Co., Inc. | 1707, 1705 |
| Service Tech Cooling Towers | 336 |
| SES, LLC. Superior Environmental Solutions | 1832 |
| SGS North America, Inc. | 1107 |
| Shandong Longda Bio-products Co., Ltd. | 615 |
| Shuttlewagon | 539 |
| Siemens Industry, Inc. | 1817 |
| Simoneau Sterling Midwest | 303 |
| Sixaxis Manufacturing Technologies | 1702 |
| SLB | 331 |
| Solar Turbines Incorporated | 1629 |
| Solutions 4 Manufacturing | 1431 |
| SonicAire | 2047 |
| SOS Leak Repair | 938 |
| Southwest Research Institute | 509 |
| Spraying Systems Co. | 817 |
| Standard Polymers | 1825 |
| Stantec | 1822 |
| Stewart & Stevenson - Rail King | 601 |
| StoneAge Tools | 1835, 1839, 1837 |
| Strobel Companies | 230 |
| Sukup Manufacturing Co. | 911 |
| Sulzer Chemtech USA, Inc. | 2025, 2026 |
| Sulzer Pumps Solutions, Inc. | 2022, 2023 |
| Summit Carbon Solutions | 1109 |
| Sys-Kool Cooling Towers | 1814 |
| TANN Corporation | 428 |
| Taprogge America Corporation | 1600 |
| Teikoku USA, Inc. | 801 |
| Temp Link Innovations | 407 |
| The CMM Group | 1339 |
| The New York Blower Company | 225 |
| The Walling Company | 1527 |
| Thermon Inc. | 1809 |
| Think Environmental | 1731 |
| TLT Turbo Inc. | 1602 |
| TMI Coatings Inc. | 538 |
| Total Filtration Services | 503 |
| Tower Tech | 401 |
| Trace Environmental Systems, Inc. | 1433 |
| Tracerco | 2020 |
| Trackmobile Railcar Movers | 325, 323 |
| Tranter, Inc. | 1523 |
| Trident Automation, Inc. | 1821 |
| Trihydro Corporation | 1405 |
| Trucent | 723 |
| US Coating Applicators | 2031 |
| VAA, LLC | 528 |
| Veolia Water Technologies & Solutions | 1317, 1416 |
| Victory Energy Operations, LLC | 1606 |
| Viking Automatic Sprinkler Co. | 1428 |
| Vogelbusch USA, Inc. | 906 |
| W.R. Grace & Co. | 1717 |
| Warrior Mfg., LLC | 733 |
| Water Tech, Inc. | 1039, 1138 |
| WCR Incorporated | 1511, 1509 |
| Westmor Industries, LLC | 809 |
| Whitefox Technologies Limited | 1017 |
| Williams Refractory Services, Inc. | 836 |
| WINBCO | 1408 |
| Wiss, Janney, Elstner Associates, Inc. | 1228 |
| World Kinect Energy Services | 1134 |
| Woven Metal Products | 1232 |
| Xylem Inc. | 507 |
| Xylogenics, Inc. | 1723 |
| Zee Loeffler | 1700 |
| Zeeco, Inc. | 1432 |
| Zenviro Tech US, Inc. | 1537 |
| Zeochem, LLC | 337 |
|