| 7 Compression | Tyler, Texas, USA | | x | | | 0 | 48 | 0 | 36 |
| Abby Services Inc. | Canonsburg, Pennsylvania, USA | x | x | x | x | 3 | 1000 | 2 | 745 |
| ABC Compressors | Eibar, Spain | | x | | | 70 | 1600 | 50 | 1200 |
| Adicomp Srl | Isola Vicentina, Vicenza, Italy | | x | x | | 4 | 1350 | 3 | 1000 |
| Aerzen USA | Coatesville, Pennsylvania, USA | | | x | | 0 | 13410 | 0 | 10000 |
| AG Equipment Co. | Broken Arrow, Oklahoma, USA | | x | x | | 20 | 10000 | 15 | 7456 |
| Alegacy Equipment | Waller, Texas, USA | | x | x | | 50 | 10000 | 37 | 7500 |
| ANGI Energy Systems LLC | Janesville, Wisconsin, USA | | x | x | | 40 | 900 | 30 | 675 |
| Applied Compression Systems | Cranbrook, BC, Canada | | x | x | x | 2 | 1000 | 1.5 | 745 |
| Arrow Engine Co. | Tulsa, Oklahoma, USA | | x | | | 20 | 550 | 19 | 410 |
| Basic Compression | Houston, Texas, USA | | x | | x | 20 | 8000 | 15 | 5965 |
| Bauer Compressors Inc. | Norfolk, Virginia, USA | | x | | | 1.5 | 350 | 1 | 250 |
| Brahma Compression | Calgary, Alberta, Canada | | | x | | 5 | 400 | 4 | 298 |
| Cast Aluminum Solutions | Batavia, IL, USA | X | | | | Any | Any | Any | Any |
| Cobey Inc. | Buffalo, New York, USA | x | x | x | | 0 | 30000 | 0 | 22065 |
| Comoti | Bucharest, Romania | x | | x | | 30 | 2992 | 22 | 2000 |
| Com-Pac Systems Inc. | Odessa, Texas, USA | | x | x | | 25 | 4000 | 19 | 2983 |
| Compass Compression Services Ltd. | Calgary, Alberta, Canada | | x | x | x | 5 | 8000 | 4 | 5964 |
| Compass Manufacturing | Oklahoma City, Oklahoma, USA | | x | x | | 70 | 8000 | 50 | 6000 |
| Compressor Systems Holland BV | Vianen, Utrecht, Netherlands | | x | x | x | 1.3 | 2000 | 1 | 1500 |
| Corken Inc. | Oklahoma City, Oklahoma, USA | | x | | | 7.5 | 75 | 5.6 | 55.9 |
| CSI Compressco LP | Midland, Texas, USA | | x | x | | 20 | 2370 | 15 | 1767 |
| Custom Compression Systems | New Iberia, Louisiana, USA | | x | | | 95 | 5000 | 71 | 3728 |
| Dearing Compressor & Pump Co. | Youngstown, Ohio, USA | x | x | x | | 5 | 10000 | 3 | 7457 |
| Elliott Co. | Jeannette, Pennsylvania, USA | x | x | x | x | 100 | 120000 | 74.5 | 89500 |
| Enerflex Ltd. | Houston, Texas, USA | | x | x | | 0 | 10000 | 0 | 7460 |
| Enerproject SA | Mezzovico, Switzerland | x | x | x | x | 0 | 4024 | 5 | 3500 |
| Euro Gas Systems SRL | Targu Mures, Romania | | x | x | | 100 | 5000 | 75 | 3700 |
| Exterran Corp. | Houston, Texas, USA | | x | x | | 100 | 10000 | 75 | 7500 |
| FIMA Maschinenbau GmbH | Obersontheim, Germany | x | | | | 1 | 6800 | 1 | 5000 |
| Flatrock Compression Ltd. | Houston, Texas, USA | | x | | | 26 | 500 | 19 | 373 |
| Flogistix | Oklahoma City, Oklahoma, USA | | | x | | 20 | 800 | 15 | 597 |
| FLSmidth Inc. | Bethlehem, Pennsylvania, USA | | | | x | 10 | 500 | 7.5 | 375 |
| Foremost | Calgary, Alberta, Canada | | x | x | x | 5 | 400 | 3.7 | 298 |
| Gas & Air Systems, Inc. | Hellertown, Pennsylvania, USA | x | x | x | x | 1 | 2000 | 1 | 1500 |
| Gas Compressors Ltd. | East Peckham, Kent, England | x | x | x | x | 7 | 20000 | 5.5 | 15000 |
| GEA North America | York, Pennsylvania, USA | | | x | | 0 | 5623 | 0 | 4193 |
| GEA Refrigeration, Italy | Castel Maggiore, Italy | x | x | x | | 0 | 13412 | 0 | 10000 |
| Graf S.p.A. | Nonantola, Modena, Italy | | x | | | 16 | 750 | 22 | 1000 |
| Great Plains Gas Compression Holdings, LLC | Hugoton, Kansas, USA | | x | x | | 5 | 5000 | 4 | 3729 |
| HBR Equipamentos Ltda | Sao Paulo, Brazil | x | x | x | | 0 | 5000 | 0 | 3729 |
| Howden | Renfrew, U.K. | | | x | | 0 | 6705 | 0 | 5000 |
| Industrias Juan F. Secco S.A. | Rosario, Argentina | | x | | | 0 | 6500 | 0 | 4846 |
| J J Crewe and Son | Buckesytown, Maryland, USA | x | x | x | | 5 | 10000 | 2 | 13000 |
| Jereh Oil & Gas Engineering Corp. | Yantai, Shandong, China | | x | x | | 85 | 10002 | 63 | 7458 |
| J-W Power Co. | Addison, Texas, USA | | x | x | x | 25 | 6000 | 19 | 4474 |
| Kingsly Compression Inc. | Cambridge, Ohio, USA | | x | x | | 5 | 1000 | 4 | 746 |
| Kirloskar Pneumatic Co. Ltd. | Pune, Maharastra, India | | X | X | | 30 | 10000 | 22 | 7456 |
| Kobelco Compressors America Inc. | Corona, California, USA | x | x | x | | 134 | 40230 | 100 | 30000 |
| Mayekawa USA Inc. | Houston, Texas, USA | | | x | | 0 | 4500 | 0 | 3300 |
| McClung Energy Services | Longview, Texas, USA | | x | | | 50 | 400 | 37 | 298 |
| Mitsubishi Heavy Industries Compressor International | Pearland, Texas, USA | x | | | x | 3000 | 150000 | 2237 | 111855 |
| Natural Gas Compression Systems Inc. | Traverse City, Michigan, USA | | x | x | | 0 | 2500 | 0 | 1864 |
| Natural Gas Services Group, Inc. | Midland, Texas, USA | | x | x | | 50 | 1500 | 37 | 1119 |
| Neuman & Esser USA Inc. | Katy, Texas, USA | | x | | | 0 | 40000 | 0 | 30000 |
| NEXT Compression | Calgary, Alberta, Canada | | x | x | x | 25 | 5000 | 18 | 3728 |
| NG Metalúrgica S.A. | Piracicaba, São Paulo, Brazil | x | x | x | | 0 | 20000 | 0 | 14925 |
| OTA Compression LLC | Irving, Texas, USA | | x | | | 0 | 125 | 0 | 93 |
| Palmero San Luis | Buenos Aires, Buenos Aires, Argentina | | x | x | | 100 | 6700 | 75 | 5000 |
| PEB Engineers & Constructors | Zoetermeer, South (Z-H), Netherlands | | x | x | | 26 | 9383 | 20 | 7000 |
| Propak Systems Ltd. | Airdrie, Alberta, Canada | | x | x | | 0 | 10000 | 0 | 7456 |
| PSE Engineering GmbH | Hannover, Germany | | x | | | 100 | 10000 | 75 | 7500 |
| Reagan Power & Compression Inc. | Broussard, Louisiana, USA | | x | x | | 0 | 10000 | 0 | 7455 |
| Ron Porter LLC | Carmel, Indiana, USA | x | x | x | x | 20 | 300 | 15 | 225 |
| ROOTS Systems, Inc. | Houston, Texas, USA | | | | x | 0 | 1341 | 0 | 1000 |
| S&R Compression LLC | Tulsa, Oklahoma, USA | | x | x | | 0 | 400 | 0 | 298 |
| S&S Technical, Inc. | Alpharetta, Georgia, USA | | x | | | 1 | 400 | 0.75 | 298 |
| Safe | San Giovanni, Persiceto, Italy | | x | | | 67 | 6714 | 50 | 9000 |
| SCFM Compression Systems | Tulsa, Oklahoma, USA | | x | x | x | 200 | 8000 | 150 | 6500 |
| SEC Energy Products & Services | Houston, Texas, USA | | x | | | 50 | 10000 | 37 | 7457 |
| Sertco | Okemah, Oklahoma, USA | | x | | | 20 | 200 | 15 | 149 |
| SES International BV | Delden, Overijsel, Netherlands | x | | x | | 34 | 11560 | 25 | 8500 |
| Shandong Kerui Compressor | DongYing, Shandong, China | | x | x | x | 50 | 10000 | 37 | 7456 |
| Siad Macchine Impianti S.p.A. | Bergamo, Italy | | x | | | 13 | 11900 | 10 | 8700 |
| SNC Lavalin | Houston, TX, USA | | x | | | 50 | 7500 | 65 | 10050 |
| Solar Turbines | San Diego, California, USA | x | | | | 13097 | 77707 | 9800 | 57900 |
| Startec Compression and Process Ltd. | Calgary, Alberta, Canada | x | x | x | x | 5 | 8000 | 4 | 5965 |
| Technical America/IES | Corona, California, USA | x | x | x | x | 10 | 10000 | 7.5 | 7500 |
| Technical Thai Service Co., Ltd. | Muangrayong, Rayong, Thailand | x | x | x | x | 20 | 20000 | 15 | 15000 |
| UEC-Gas Turbines, JSC | Rybinsk, Yaroslavl Oblast, Russia | x | x | | | 5361 | 33512 | 3998 | 24989 |
| UECompression | Henderson, Colorado, USA | | x | x | x | 50 | 7500 | 37 | 5592 |
| VPT Kompressoren GmbH | Remscheid, Germany | x | x | x | | | | 5 | 3500 |
| Wasco Engineering Group | Singapore, Singapore, Singapore | x | x | x | x | 100 | 10000 | 75 | 7500 |
| York Process Systems (Johnson Controls) | Waynesboro, Pennsylvania, USA | x | | x | | 100 | 15000 | 75 | 11200 |
