| 1 | AM Engineering | | USA |
| 2 | Tamarink | | USA |
| 3 | G2 Material Handling Inc. | | USA |
| 4 | Techno-Mation Inc. | | USA |
| 5 | Electrex Industrial Solutions Inc. | | USA |
| 6 | Morgan Cryogenics | | USA |
| 7 | Georg Fischer LLC | | USA |
| 8 | Jos. Honhorst Co. | | USA |
| 9 | TM Limited | | USA |
| 10 | North Star Fabrication | | USA |
| 11 | Starcon International Inc. | | USA |
| 12 | Pioneer Pipe Inc. | | USA |
| 13 | Wisconsin Metal Tech | | USA |
| 14 | Chart Industries | | USA |
| 15 | August Winter & Sons | | USA |
| 16 | Morris Kreitz & Sons Inc. | | USA |
| 17 | Simtech Process Systems | | USA |
| 18 | Apex Piping Systems Inc. | | USA |
| 19 | Miller Plastic Products Inc. | | USA |
| 20 | Filtration Solutions Inc. | | USA |
| 21 | Envirosep | | USA |
| 22 | DBJ Corporation | | USA |
| 23 | Rolls-Royce Corp. | | USA |
| 24 | Fastco Corporation | | USA |
| 25 | Tinsley Design & Fabricating LLC | | USA |
| 26 | Amsax Technologies Inc. | | USA |
| 27 | W. B. Moore Inc. | | USA |
| 28 | Kalenborn Abresist Corporation | | USA |
| 29 | Mapa Products | | USA |
| 30 | Piping Systems Inc. | | USA |
| 31 | Island Fitting | | USA |
| 32 | Advanced Process Technologies Inc. (APT) | | USA |
| 33 | Springs Fabrication Inc. | | USA |
| 34 | MKS Instruments Inc. | | USA |
| 35 | Flexible Valve Corp. | | USA |
| 36 | Steel Forgings Inc. | | USA |
| 37 | Heat Exchange Applied Technology Inc. | | USA |
| 38 | Fab-Tech Inc. | | USA |
| 39 | Northwind Inc. | | USA |
| 40 | Basic Equipment | | USA |
| 41 | SteelCraft Inc. | | USA |
| 42 | Aquatherm | | USA |
| 43 | Elliott Group | | USA |
| 44 | Proco Products Inc. | | USA |
| 45 | Triad Bellows Design & Manufacturing Inc. | | USA |
| 46 | Carolina Mechanical Services Inc | | USA |
| 47 | Hurckman Mechanical Industries | | USA |
| 48 | Perma-Pipe Inc. | | USA |
| 49 | Charlotte Pipe & Foundry Co. | | USA |
| 50 | Bruns Bros | | USA |
| 51 | Socomec Industriel Inc. | | USA |
| 52 | Corr Tech Inc. | | USA |
| 53 | Midwest Instruments & Controls | | USA |
| 54 | H.S. Martin Inc. | | USA |
| 55 | Value Added Industries Inc. | | USA |
| 56 | GDS Inc. | | USA |
| 57 | Bowringer Engineering Ltd. | | USA |
| 58 | Enterprise Mfg. Inc. | | USA |
| 59 | Arc Controls Inc. | | USA |
| 60 | Grunau Co. Inc. | | USA |
| 61 | U.S. Industrial Piping Inc. | | USA |
| 62 | Alloy Custom Products Inc. | | USA |
| 63 | Smart Tap Inc. | | USA |
| 64 | Abtrex Industries Inc. Michigan Indiana & Pennsylvania | | USA |
| 65 | Lyons Brook Piping & Welding Limited | | USA |
| 66 | Orion Fittings | | USA |
| 67 | C & E Plastics Inc. | | USA |
| 68 | Garneau Welding & Fabricating Ltd. | | USA |
| 69 | Inox-Tech Canada Inc. | | USA |
| 70 | Brumley Manufacturing Inc. | | USA |
| 71 | Power Process Piping Inc. | | USA |
| 72 | Brandon Welding & Fabrication | | USA |
| 73 | Sexton's Mechanical Limited | | USA |
| 74 | American Spiralweld Pipe Co. LLC | | USA |
| 75 | Westco F. G. Corp. | | USA |
| 76 | Wm. T. Spaeder. | | USA |
| 77 | Atx Environmental Solutions Llc | | USA |
| 78 | Addison Fabricators Inc. | | USA |
| 79 | ICSE | | USA |
| 80 | Mid-State Contracting Inc. | | USA |
| 81 | Walton & Co. | | USA |
| 82 | Quackenbush Co. Inc. | | USA |
| 83 | Tetra Pak Processing Systems America Inc. | | USA |
| 84 | Houston Pipe Benders | | USA |
| 85 | Filor Industries Inc. | | USA |
| 86 | Sue-Jac Inc. | | USA |
| 87 | Sorensen Systems LLC | | USA |
| 88 | Liquid Systems | | USA |
| 89 | Decco Inc. | | USA |
| 90 | Premier Technology Inc. | | USA |
| 91 | Cupples J. & J. Co. Inc. | | USA |
| 92 | Tech-Pipe | | USA |
| 93 | GLM Tanks & Equipment Ltd. | | USA |
| 94 | Environ Products Inc. | | USA |
| 95 | Process Pipe Fabricators Inc. | | USA |
| 96 | Elmwood Tank & Piping Corp. | | USA |
| 97 | Kelolite | | USA |
| 98 | Arden Corp. | | USA |
| 99 | Accomplish Mechanical Industries Ltd | | USA |
| 100 | The Weld Joint | | USA |
| 101 | Berry Contracting Inc. | | USA |
| 102 | Superior Piping Fabricators & Erectors Inc. | | USA |
| 103 | Precision Welding & Fabrication | | USA |
| 104 | Asahi/America Inc. | | USA |
| 105 | Paul Mueller Company | | USA |
| 106 | IPEX | | USA |
| 107 | TITAN Metal Fabricators | | USA |
| 108 | Naylor Pipe Co. | | USA |
| 109 | Tricon Piping Systems Inc. | | USA |
| 110 | IPEX | | USA |
| 111 | The Rose Corporation | | USA |
| 112 | Robinson Inc. | | USA |
| 113 | Southeast Texas Industries Inc. | | USA |
| 114 | Ceramic Technology Inc. | | USA |
| 115 | Trumbo Inc. | | USA |
| 116 | Cooney Brothers Inc. | | USA |
| 117 | Rhoads Metal Works Inc. | | USA |
| 118 | Sandvik Process Systems LLC | | USA |
| 119 | Superior Industrial Maintenance Co. | | USA |
| 120 | Shaw Stainless & Alloy | | USA |
| 121 | Stegall Mechanical | | USA |
| 122 | National Tube Supply | | USA |
| 123 | Composites USA | | USA |
| 124 | A & B Process Systems | | USA |
| 125 | Southern Industrial Constructors Inc. | | USA |
| 126 | Town & Country Plastics Inc. | | USA |
| 127 | Goodhart Sons Inc. | | USA |