| Type | Company | CSIA Certified | City | State/Province | Country |
|---|
| Endorsed | Aseco Integrated Systems, Ltd. | YES | Oakville | ON | CANADA |
| Endorsed | Autoware S.r.l | | Vicenza | | ITALY |
| Endorsed | Avanceon | YES | Exton | PA | UNITED STATES |
| Endorsed | CDS Sistemas S.A. | | Rosario | Santa Fe | ARGENTINA |
| Endorsed | DLT&V Systems Engineering, Inc. | | Las Vegas | NV | UNITED STATES |
| Endorsed | DLT&V Systems Engineering, Inc. | | Phoenix | AZ | UNITED STATES |
| Endorsed | DLT&V Systems Engineering, Inc. | | Oceanside | CA | UNITED STATES |
| Endorsed | E-Technologies Group, Inc. | | West Chester | OH | UNITED STATES |
| Endorsed | ENCO Enginyeria i Control S.L. | | Montmelo | Barcelona | SPAIN |
| Endorsed | G&O Automatisierungs GmbH | | Verden | | GERMANY |
| Endorsed | Genius Automacao de Sistemas, Ltda. | | Sao Paulo | SP | BRAZIL |
| Endorsed | Glenmount Global Solutions | YES | Irving | TX | UNITED STATES |
| Endorsed | Glenmount Global Solutions | | Mexico | DF | MEXICO |
| Endorsed | Global Automation Partners - GAP | | Danbury | CT | UNITED STATES |
| Endorsed | Global Automation Partners - GAP | | Greenville | SC | UNITED STATES |
| Endorsed | INDEFF S.A. | | Luxembourg | | LUXEMBOURG |
| Endorsed | IPACT, Inc. | | Valparaiso | IN | UNITED STATES |
| Endorsed | Key Solution Systems de Mexico S.A. de C.V. | | Zapopan | Jalisco | MEXICO |
| Endorsed | Prevas AB | YES | Vasteras | | SWEDEN |
| Endorsed | Prevas AB | | Vastra Frolunda | | SWEDEN |
| Endorsed | Prevas AB | | Malmo | | SWEDEN |
| Endorsed | Prevas AS | | Oslo | | NORWAY |
| Endorsed | Progressive Software Solutions, Inc. | | Albany | OR | UNITED STATES |
| Endorsed | Stone Technologies, Inc. | YES | Chesterfield | MO | UNITED STATES |
| Endorsed | SYSMAKER Engenharia de Sistemas Lda. | | Lisboa | | PORTUGAL |
| Endorsed | SYSMAKER IBERIA S.L. | | Castelldefels | | SPAIN |
| Endorsed | TSD an Optimation Company | YES | Coatesville | PA | UNITED STATES |
| Certified Performance | Druecker Steuerungssysteme GmbH | | Neuhausen | | GERMANY |
| Certified System Platform | A & E Engineering, Inc. | | Greer | SC | UNITED STATES |
| Certified System Platform | AATIS, Incorporated | | Taylors | SC | UNITED STATES |
| Certified System Platform | AB Industry S.A. | | Ozarow Mazowiecki | | POLAND |
| Certified System Platform | ABIS s.c. | | Krakow | | POLAND |
| Certified System Platform | Abunayyan Trading Corp. | | Riyadh | | SAUDI ARABIA |
| Certified System Platform | ACISA Aeronaval de Contrucciones | | Madrid | | SPAIN |
| Certified System Platform | ACS AG | | Wil | St. Gallen | SWITZERLAND |
| Certified System Platform | Actemium Belgium | | Aalter | Oost-Vlaanderen | BELGIUM |
| Certified System Platform | Actemium Starren B.V. | | Veghel | | NETHERLANDS |
| Certified System Platform | ADASA Sistemas, sau | | Barcelona | | SPAIN |
| Certified System Platform | Advansys | | Gauteng | | SOUTH AFRICA |
| Certified System Platform | AF | | Randers | | DENMARK |
| Certified System Platform | AF - Engineering AB | | Jonkoping | | SWEDEN |
| Certified System Platform | AGAIN, S.L. | | Noain | Navarra | SPAIN |
| Certified System Platform | Agatos Software Engineering Pte Ltd. | | Singapore | | SINGAPORE |
| Certified System Platform | ALPS Automation SA | | Collombey | Valais | SWITZERLAND |
| Certified System Platform | AMR Automation cc | | Cape Town | | SOUTH AFRICA |
| Certified System Platform | Apex Manufacturing Solutions | | Boise | ID | UNITED STATES |
| Certified System Platform | Applied Control Engineering, Inc. | YES | Newark | DE | UNITED STATES |
| Certified System Platform | AQUAPLAN, S.A. | | Alicante | | SPAIN |
| Certified System Platform | ASESA | | Barcelona | Catalunya | SPAIN |
| Certified System Platform | ASSI Sistemas e Instrumentacion | | El Masnou | Barcelona | SPAIN |
| Certified System Platform | Atempol Sp. z o.o. | | Piekary Slaskie | | POLAND |
| Certified System Platform | Atos Origin Integration | | Suresnes | | FRANCE |
| Certified System Platform | Atos Origin Nederland B.V. | | Arnhem | | NETHERLANDS |
| Certified System Platform | Atos Origin UK | | London | | UNITED KINGDOM |
| Certified System Platform | ATW-Solutions GmbH | | Steinberg-Dorfl | | AUSTRIA |
| Certified System Platform | Au2mate | | Silkeborg | | DENMARK |
| Certified System Platform | Auresys | | Heillecourt | | FRANCE |
| Certified System Platform | Ausenco PSI | YES | Concord | CA | UNITED STATES |
| Certified System Platform | Avid Solutions, Inc. | YES | Winston-Salem | NC | UNITED STATES |
| Certified System Platform | Barry-Wehmiller Design Group | | Clayton | MO | UNITED STATES |
| Certified System Platform | Barry-Wehmiller Design Group | | King of Prussia | PA | UNITED STATES |
| Certified System Platform | Barry-Wehmiller Design Group | | Cerritos | CA | UNITED STATES |
| Certified System Platform | Bay-Tec Engineering | YES | Napa | CA | UNITED STATES |
| Certified System Platform | Baytek Systems Ltd | | Ebbw Vale | | UNITED KINGDOM |
| Certified System Platform | besecke automation | | Bremen | | GERMANY |
| Certified System Platform | Bont Software | | Lake Dallas | TX | UNITED STATES |
| Certified System Platform | Bytes Technology Group | | Midrand | Gauteng | SOUTH AFRICA |
| Certified System Platform | CNA Group Ltd. | | Singapore | | SINGAPORE |
| Certified System Platform | Compumation, Inc. | | Bensenville | IL | UNITED STATES |
| Certified System Platform | Control Systems Integration (Pty) Ltd. | | Hennopspark | Centurion | SOUTH AFRICA |
| Certified System Platform | Control Technologies, Inc. | YES | Williston | VT | UNITED STATES |
| Certified System Platform | Convenient Software Solutions (Pty) Ltd. | | Durban | Kwazulu Natal | SOUTH AFRICA |
| Certified System Platform | Cosinor, S.A. | | Bilbao | Vizcaya | SPAIN |
| Certified System Platform | Cougar Automation Ltd | | Waterlooville | Hampshire | UNITED KINGDOM |
| Certified System Platform | CP Control Technologies, Inc. | | Mesa | AZ | UNITED STATES |
| Certified System Platform | CSE Systems Integrators, Inc. | | San Juan | PR | PUERTO RICO |
| Certified System Platform | Cybertrol Engineering | | Minneapolis | MN | UNITED STATES |
| Certified System Platform | DCD Engineering Services Ltd. | | Edmonton | AB | CANADA |
| Certified System Platform | DCR Engineering Services | | Mulberry | FL | UNITED STATES |
| Certified System Platform | DE Software and Control GmbH | | Dingolfing | | GERMANY |
| Certified System Platform | Deleproject AG | | Uetendorf/Thun | | SWITZERLAND |
| Certified System Platform | Descom Industrial Process S.A.C. | | Miraflores | Lima | PERU |
| Certified System Platform | DIDELME SISTEMI srl | | Castellanza | Varese | ITALY |
| Certified System Platform | Dinalan, S.L. | | Llodio | Alava | SPAIN |
| Certified System Platform | Dolphin Ingenieria Ltda | | Bogota | Bogota | COLOMBIA |
| Certified System Platform | EKIUM | | Bron Codex | | FRANCE |
| Certified System Platform | Eltronic A/S | | Hedensted | | DENMARK |
| Certified System Platform | EMTE Sistemas S.A. | | Sant Joan Despi | | SPAIN |
| Certified System Platform | Eppcon Systems Inc. | | Woodbridge | ON | CANADA |
| Certified System Platform | ESCO Automation | YES | Marion | IA | UNITED STATES |
| Certified System Platform | EVERDYN | | Aix en Provence | | FRANCE |
| Certified System Platform | Fosdick & Hilmer, Inc. | | Cincinnati | OH | UNITED STATES |
| Certified System Platform | GENELEK SISTEMAS, S.A.L. | | Zumaia | Guipuzcoa | SPAIN |
| Certified System Platform | Goodtech Solutions AS | | Oslo | | NORWAY |
| Certified System Platform | Grafcet Automacao e Comercio | | Sao Paulo | SP | BRAZIL |
| Certified System Platform | Grantek Systems Integration Inc | | Burlington | ON | CANADA |
| Certified System Platform | GRP Iluminacion S.A. | | Alcobendas | Madrid | SPAIN |
| Certified System Platform | H2E Incorporated | | Liberty Lake | WA | UNITED STATES |
| Certified System Platform | Han Jin Automation Co., Ltd. | | Kaohsiung | Taiwan | TAIWAN, REPUBLIC OF |
| Certified System Platform | HEITEC AG | | Crailsheim | | GERMANY |
| Certified System Platform | Hiprom (Pty) Limited | | Randsburg | Gauteng | SOUTH AFRICA |
| Certified System Platform | Hull & Associates, Inc. | | Dublin | OH | UNITED STATES |
| Certified System Platform | HUMIQ B.V. | | Deventer | | NETHERLANDS |
| Certified System Platform | I-teco | | Moscow | | RUSSIAN FEDERATION |
| Certified System Platform | I.C.S. Triplex (Hinz), a division of Rockwell International | | Highlands Ranch | CO | UNITED STATES |
| Certified System Platform | I2R ApS | | Copenhagen | | DENMARK |
| Certified System Platform | ICR (Ingenieria y Control Remoto) | | Albolote | Granada | SPAIN |
| Certified System Platform | InfoTeam Informatique SA | | Villars-sur-Glane | Fribourg | SWITZERLAND |
| Certified System Platform | Ingenieria Electronica Argentina S.R.L. | | Rosario | Santa Fe | ARGENTINA |
| Certified System Platform | Insist-Avtomatika LLC | YES | Omsk | | RUSSIAN FEDERATION |
| Certified System Platform | INTAS-Company Ltd | | Ufa | | RUSSIAN FEDERATION |
| Certified System Platform | Integration Concepts, Inc | | Lakeland | FL | UNITED STATES |
| Certified System Platform | Invensys Systems Canada Inc | | Dollard des Ormeaux | QC | CANADA |
| Certified System Platform | IP System Control Sp. z o.o. | | Swarzedz | | POLAND |
| Certified System Platform | Iritron Pty Ltd. | | Pretoria | Gauteng | SOUTH AFRICA |
| Certified System Platform | ITG (Infamation Technologies Group, LLC) | | Jacksonville | FL | UNITED STATES |
| Certified System Platform | J.T.C. S.A. | | Bedzin | | POLAND |
| Certified System Platform | Kim Automation, Inc. | YES | Austin | TX | UNITED STATES |
| Certified System Platform | Kline Process Systems, Inc. | | Reading | PA | UNITED STATES |
| Certified System Platform | Kruse Controls, Inc. | | Baltimore | MD | UNITED STATES |
| Certified System Platform | L&T Electrical & Automation FZE | | Dubai | | UNITED ARAB EMIRATES |
| Certified System Platform | LCS S.R.L. | | Usmate Velate | Monza Brianza | ITALY |
| Certified System Platform | Malisko Engineering, Inc. | YES | St. Louis | MO | UNITED STATES |
| Certified System Platform | MAR Marine-u. Automatisierungstechn | | Rostock/Warnemunde | | GERMANY |
| Certified System Platform | Matrix Technologies, Inc. | YES | Maumee | OH | UNITED STATES |
| Certified System Platform | MAVERICK Technologies, LLC | | Houston | TX | UNITED STATES |
| Certified System Platform | Maxson Co Ltd. | | Hong Kong | | CHINA (PRC) |
| Certified System Platform | Megatech Control FZCO | | Dubai | | UNITED ARAB EMIRATES |
| Certified System Platform | MHP GmbH | | Worms | | GERMANY |
| Certified System Platform | Microflex Services GmbH | | Hamburg | | GERMANY |
| Certified System Platform | Minot Enterprises Inc. | | Woodbury | MN | UNITED STATES |
| Certified System Platform | Nebb Engineering AS | | Asker | | NORWAY |
| Certified System Platform | NITTETSU ELEX Co., Ltd. | | Kitakyushu | Fukuoka | JAPAN |
| Certified System Platform | Nordkontakt AS | | Bodo | | NORWAY |
| Certified System Platform | Northern Digital, Inc. | | Bakersfield | CA | UNITED STATES |
| Certified System Platform | Nucleo de Comunicaciones y Control | | Tres Cantos | Madrid | SPAIN |
| Certified System Platform | O.N.G. Automation Ltd. | | Cork | | IRELAND |
| Certified System Platform | On/Off Engineering GmbH | | Wunstorf | | GERMANY |
| Certified System Platform | Opinion Process Engine | | Oosterhout | | NETHERLANDS |
| Certified System Platform | Panacea Technologies, Inc. | | Fort Washington | PA | UNITED STATES |
| Certified System Platform | Parametrix, Inc. | | Sumner | WA | UNITED STATES |
| Certified System Platform | People Team Ltda. | | San Jose dos Campos | Sao Paulo | BRAZIL |
| Certified System Platform | Plant Werx Pte Ltd. | | Singapore | | SINGAPORE |
| Certified System Platform | PLCs Plus International, Inc. | | Bakersfield | CA | UNITED STATES |
| Certified System Platform | Polytron, Inc. | | Duluth | GA | UNITED STATES |
| Certified System Platform | PondHop | | Houston | TX | UNITED STATES |
| Certified System Platform | Prime Controls | | Lewisville | TX | UNITED STATES |
| Certified System Platform | Prism Systems, Inc. | | Mobile | AL | UNITED STATES |
| Certified System Platform | Pro-Fa Automation B.V. | | HertogenBosch | Noord-Brabant | NETHERLANDS |
| Certified System Platform | proCtec GmbH | | Viernheim | | GERMANY |
| Certified System Platform | ProtoLink, Inc. | | Richardson | TX | UNITED STATES |
| Certified System Platform | QSPEC Solutions, Inc. | | Overland Park | KS | UNITED STATES |
| Certified System Platform | Quad Automation (Pty) Ltd | | Midrand | Gauteng | SOUTH AFRICA |
| Certified System Platform | Quantum | | Tempe | AZ | UNITED STATES |
| Certified System Platform | Revere Control Systems | YES | Birmingham | AL | UNITED STATES |
| Certified System Platform | Rocha Controls | | Tampa | FL | UNITED STATES |
| Certified System Platform | RoviSys Company | YES | Aurora | OH | UNITED STATES |
| Certified System Platform | RTSoft Company | | Moscow | | RUSSIAN FEDERATION |
| Certified System Platform | Saber Engineering, Inc. | | Auburn | CA | UNITED STATES |
| Certified System Platform | SAIC | | Houston | TX | UNITED STATES |
| Certified System Platform | Saint-Petersburg Institute of Heat Energy | | St. Petersburg | | RUSSIAN FEDERATION |
| Certified System Platform | Sampol Ingenieria y Obras, S.A. | | Palma de Mallorca | Islas Baleares | SPAIN |
| Certified System Platform | Serra | | Healdsburg | CA | UNITED STATES |
| Certified System Platform | Servicios de Automatizacion RFID | | Caracas | Miranda | VENEZUELA |
| Certified System Platform | Sigma Solutions AB | | Goteborg | | SWEDEN |
| Certified System Platform | Sindosa, S.L. | | Derio | Vizcaya | SPAIN |
| Certified System Platform | Sistel Control, s.l. | | Terrassa | | SPAIN |
| Certified System Platform | SITAM | | Bron | | FRANCE |
| Certified System Platform | SNC-Lavalin Engineering & Technology | | Montreal | QC | CANADA |
| Certified System Platform | SPIE Sud Ouest | | Toulouse Cedex 4 | | FRANCE |
| Certified System Platform | Systech Control System Technology Co | | Riyadh | | SAUDI ARABIA |
| Certified System Platform | SysTech Egypt | | Cairo | | EGYPT |
| Certified System Platform | Systems Anywhere CC | | Riding | | SOUTH AFRICA |
| Certified System Platform | T-Systems ITC Iberia S.A.U. | | Martorell | Barcelona | SPAIN |
| Certified System Platform | TechComp, Inc. | | Chesapeake | VA | UNITED STATES |
| Certified System Platform | Technord Automation | | Tournai | | BELGIUM |
| Certified System Platform | Technord France SAS | | Villeneuve d Ascq | | FRANCE |
| Certified System Platform | Tesco Controls, Inc. | YES | Sacramento | CA | UNITED STATES |
| Certified System Platform | Tetra Tech, Inc. | | Ann Arbor | MI | UNITED STATES |
| Certified System Platform | Trend Ingenieria S.R.L | | Buenos Aires | | ARGENTINA |
| Certified System Platform | TSE Informatica Ltda. | | Sao Paulo | | BRAZIL |
| Certified System Platform | VENT Ltd. | | Moscow | | RUSSIAN FEDERATION |
| Certified System Platform | Vertech Industrial Systems, LLC | | Phoenix | AZ | UNITED STATES |
| Certified System Platform | VestCo | | Saint-Petersburg | | RUSSIAN FEDERATION |
| Certified System Platform | Visual Control | | Krakow | | POLAND |
| Certified System Platform | W-Industries | | Houston | TX | UNITED STATES |
| Certified System Platform | Wunderlich-Malec | | Scottsdale | AZ | UNITED STATES |
| Certified System Platform | YIT Building Systems | | Haugesund | Rogaland | NORWAY |
| Certified System Platform | ZAO NPO Elevar | | Moscow | | RUSSIAN FEDERATION |
| Certified System Platform | ZETA Automation GmbH | | Freising | | GERMANY |
| Certified InTouch | Abantia | | Barcelona | | SPAIN |
| Certified InTouch | Arisnova S.L. | | Valencia | | SPAIN |
| Certified InTouch | Automated Control Solutions, Ltd. | | Burton on Trent | Staffordshire | UNITED KINGDOM |
| Certified InTouch | Automation Nation, Inc. | | Houston | TX | UNITED STATES |
| Certified InTouch | Axis Projects SA de CV | | Ciudad del Carmen | Campeche | MEXICO |
| Certified InTouch | B&W Control Systems Integration, LLC | | Crystal Lake | IL | UNITED STATES |
| Certified InTouch | Barry D. Payne & Associates, Inc. | | Stafford | TX | UNITED STATES |
| Certified InTouch | Basic Systems, Inc. | | Cambridge | OH | UNITED STATES |
| Certified InTouch | BiiON SA | | Braine L Alleud | | BELGIUM |
| Certified InTouch | BN Automation AG | | Ilmenau | | GERMANY |
| Certified InTouch | Comsoft | | Pabianice k/Lodzi | | POLAND |
| Certified InTouch | Contec N.V. | | Antwerpen | | BELGIUM |
| Certified InTouch | Dahlen Systems, Inc. | | Golden Valley | MN | UNITED STATES |
| Certified InTouch | ELITE Control Systems Limited | | Livingston | West Lothian | UNITED KINGDOM |
| Certified InTouch | Enterprise Automation | | Tustin | CA | UNITED STATES |
| Certified InTouch | Excel Marco Industrial Systems Pte Ltd | | Singapore | | SINGAPORE |
| Certified InTouch | Grupo Intermark, S.L. | | Gijon | Asturias | SPAIN |
| Certified InTouch | HG Systems Ltd. | | Chesterfield | Derbyshire | UNITED KINGDOM |
| Certified InTouch | Hixson | | Cincinnati | OH | UNITED STATES |
| Certified InTouch | Honeywell, S.L. | | Madrid | | SPAIN |
| Certified InTouch | Jordan Engineering Inc | | Beamsville | ON | CANADA |
| Certified InTouch | JSC INTMA-Automatic | | Moscow | | RUSSIAN FEDERATION |
| Certified InTouch | K2 Data Systems Inc. | | Albany | OR | UNITED STATES |
| Certified InTouch | KSV GmbH | | Koblenz | | GERMANY |
| Certified InTouch | Lamping & Reisig GmbH & Co. KG | | Wildeshausen | | GERMANY |
| Certified InTouch | Logical Systems, Inc. (LSI) | | Bartlett | TN | UNITED STATES |
| Certified InTouch | MacDonald Humfrey Automation Ltd. | | Luton | Bedfordshire | UNITED KINGDOM |
| Certified InTouch | Martin Control Systems, Inc. | YES | Dublin | OH | UNITED STATES |
| Certified InTouch | Melfi Technologies Inc. | | Concord | ON | CANADA |
| Certified InTouch | MX Technologies Co., Ltd. | | Katsushika-ku | Tokyo | JAPAN |
| Certified InTouch | Outbound Technologies Incorporated | | New Hudson | MI | UNITED STATES |
| Certified InTouch | Patni Computer Systems Limited | | Hadapsar, Distt-Pune | Western India | INDIA |
| Certified InTouch | PM Group | | Fareham | Hampshire | UNITED KINGDOM |
| Certified InTouch | SAGE Automation | YES | AUST wide | National | AUSTRALIA |
| Certified InTouch | Scadamax Automation Sdn. Bhd. | | Sungai Buloh | Selangor | MALAYSIA |
| Certified InTouch | Shafer, Kline, & Warren, Inc. | | North Kansas City | MO | UNITED STATES |
| Certified InTouch | Sure Controls, Inc. | | Greenville | WI | UNITED STATES |
| Certified InTouch | Takebishi Corporation | | Kyoto-shi | Kyoto fu | JAPAN |
| Certified InTouch | The Fitch Company | | Bangor | ME | UNITED STATES |
| Certified InTouch | Toucan Technologies Ltd. | | San Fernando | | TRINIDAD AND TOBAGO |
| Certified InTouch | Van Doren Engineers B.V. | | Boekel | | NETHERLANDS |
| Certified InTouch | Volvo Information Technology AB | | Goeteborg | | SWEDEN |
| Certified IntelaTrac | R.E.X. Software Limited | | Eastleigh | | UNITED KINGDOM |
| Registered | 2I Ingenierie Industrielle | | Marseille Cedex 016 | Bouches du Rhone | FRANCE |
| Registered | 4 Bytes Automation | | Pretoria | Gauteng | SOUTH AFRICA |
| Registered | A&A Metal Products, Inc. | | Evansville | IN | UNITED STATES |
| Registered | A&B Process Systems Corp | | Stratford | WI | UNITED STATES |
| Registered | A&C Automatizacion y Control | | Pereira | | COLOMBIA |
| Registered | A&D Automation Oy | | Imatra | | FINLAND |
| Registered | A.E.I. SRL | | Sarego | Vicenza | ITALY |
| Registered | A.H. Lundberg Associates, Inc. | | Bellevue | WA | UNITED STATES |
| Registered | AAIM Controls, Inc. | | Waynesboro | PA | UNITED STATES |
| Registered | Aardvark Engineering | | Livingston | NJ | UNITED STATES |
| Registered | Aarsys AG | | Biel | Bern | SWITZERLAND |
| Registered | AASA | | San Jose | San Jose | COSTA RICA |
| Registered | AautomaG s.r.l. | | Siena | | ITALY |
| Registered | Abacus Automation | | Pinetwon | KZN | SOUTH AFRICA |
| Registered | ABB Ber-Mac | | Calgary | AB | CANADA |
| Registered | ABB K.K. | | Shibuya-Ku | Tokyo | JAPAN |
| Registered | Aber Industrial Solution | | Gernsbach | | GERMANY |
| Registered | Able-Baker Automation, Inc. | | Emeryville | CA | UNITED STATES |
| Registered | ABM Limited | | Widnes Cheshire | | UNITED KINGDOM |
| Registered | AC Engenharia e Sistemas S/C Ltda | | Rio de Janeiro | | BRAZIL |
| Registered | AC Engineering GmbH | | Alsdorf | | GERMANY |
| Registered | AC Solutions S.r.l. | | Lenno | | ITALY |
| Registered | ACCIONA AGUA, S.A.U. | | Alcobendas | Madrid | SPAIN |
| Registered | ACE Technologies, LLC | | Indianapolis | IN | UNITED STATES |
| Registered | Acentia Instalaciones y Sistemas, S.L. | | Velilla de San Antonio | Madrid | SPAIN |
| Registered | ACK INVA 2007, S.L. | | Barbera del Valles | Barcelona | SPAIN |
| Registered | ACOREX S.C.L. | | Merida | Badajoz | SPAIN |
| Registered | Acorn Controls, Ltd. | | Hinckley | Leicester | UNITED KINGDOM |
| Registered | ACS Engineering GmbH | | Haan | | GERMANY |
| Registered | ACT SISTEMAS, S.L. | | Sevilla | Sevilla | SPAIN |
| Registered | Actemium | | Malmo | | SWEDEN |
| Registered | Actemium AEI SA | | Ribecourt | Oise | FRANCE |
| Registered | ACTEMIUM API | | Chamalieres | | FRANCE |
| Registered | Actemium C&E Veendam | | Veendam | | NETHERLANDS |
| Registered | Actemium Controlmatic GmbH | | Weil am Rhein | Baden-Wurttemberg | GERMANY |
| Registered | Actemium ISAA | | Tilloy les Mofflaines | | FRANCE |
| Registered | ACTEMIUM ROUEN IIE | | Le Petit Quevilly | | FRANCE |
| Registered | Actemium SDEL Bourgogne | | Fintaine les Dijon | | FRANCE |
| Registered | Actemium SRTI | | Dardilly | Rhone | FRANCE |
| Registered | Adaptive Engineering and Fabrication | | Placentia | CA | UNITED STATES |
| Registered | Adaptive Resources | | McKinney | TX | UNITED STATES |
| Registered | ADASOFT | | Sant Just Desvern | Barcelona | SPAIN |
| Registered | ADCOR | | Baltimore | MD | UNITED STATES |
| Registered | Adgo Engineering & Controls | | Cincinnati | OH | UNITED STATES |
| Registered | ADM Systems Engineering Ltd | | Saint John | NB | CANADA |
| Registered | Adsyst Automation, Ltd. | | Yateley | Hampshire | UNITED KINGDOM |
| Registered | Advanced Control Solutions, Inc. | | Sylvania | OH | UNITED STATES |
| Registered | Advanced Control Systems | | Boise | ID | UNITED STATES |
| Registered | ADVANCED CONTROL SYSTEMS SRL | | BRINDISI | Brindisi | ITALY |
| Registered | Advanced Engineering & Environmental | | Grand Forks | ND | UNITED STATES |
| Registered | Advanced Engineering, Inc. | | Franklin | TN | UNITED STATES |
| Registered | Advanced Integration Group, Inc. | | McKees Rocks | PA | UNITED STATES |
| Registered | Advanced Manufacturing Technology, Inc. (AMT) | | Jamestown | NY | UNITED STATES |
| Registered | Advanced Monitoring Technologies Inc. | | Keswick Ridge | NB | CANADA |
| Registered | Advanced Process Technologies | | Cokato | MN | UNITED STATES |
| Registered | Advanced Systems Integrators Ltd. | | Surrey | BC | CANADA |
| Registered | Advantage Control Engineering LLC | | Blue Springs | MO | UNITED STATES |
| Registered | Advantec AS | | Stord | | NORWAY |
| Registered | AE of Ohio, Inc | | Sunbury | OH | UNITED STATES |
| Registered | AE Solutions, Inc. | | Greenville | SC | UNITED STATES |
| Registered | AEC Engineering | | Freeport | ME | UNITED STATES |
| Registered | AECOM Canada Ltd. | | Edmonton | AB | CANADA |
| Registered | AECOM Canada, Ltd. | | Hamilton | ON | CANADA |
| Registered | AECOM Design Build Ireland Ltd. | | Dublin | | IRELAND |
| Registered | AEMS | | Montataire | | FRANCE |
| Registered | AERTEC, Ingenieria y Desarrollos, S.L.U. | | Sevilla | Sevilla | SPAIN |
| Registered | AES Corporation | | Cedar Rapids | IA | UNITED STATES |
| Registered | AES Group LLC | | Cincinnati | OH | UNITED STATES |
| Registered | AES2I | | Pringy | Ile-de-France | FRANCE |
| Registered | AF A/S | | Brondby | Kobenhavn | DENMARK |
| Registered | AF Engineering | | Karlstad | Varmlands Lan | SWEDEN |
| Registered | AF Engineering AB | | Oskarshamn | | SWEDEN |
| Registered | AF Engineering AS | | Oslo | | NORWAY |
| Registered | AF SEKO | | Bielsko Biala | | POLAND |
| Registered | Affinity Automation | | Cornelius | NC | UNITED STATES |
| Registered | AGAT IT S.A. | | Lodz | | POLAND |
| Registered | AGE Technologies JHB (Pty) Ltd. | | Alberton | Gauteng | SOUTH AFRICA |
| Registered | AGIEE | | GRASSE | Provence-Alpes-Cote | FRANCE |
| Registered | AGP Automatizacion de Procesos | | Santa Fe | Santa Fe | ARGENTINA |
| Registered | AGP Automatozacion de Edificios, S. | | Madrid | | SPAIN |
| Registered | Ahearn & Soper Inc. | | Toronto | ON | CANADA |
| Registered | AIA Automation, Inc. | | Beauport | QC | CANADA |
| Registered | AIR | | Caen | Calvados | FRANCE |
| Registered | Air Liquide Electronics GmbH | | Ottendorf-Okrilla | Sachsen | GERMANY |
| Registered | Air Liquide Electronics Systems | | Echirolles | | FRANCE |
| Registered | Air Liquide Engineering SA | | Vitry sur Seine | | FRANCE |
| Registered | AIRBUS CIMPA | | Sevres | Ile-de-France | FRANCE |
| Registered | Ajax Tocco Magnethermic Corp. | | Warren | OH | UNITED STATES |
| Registered | Ajilon Engineering | | Schiltigheim | | FRANCE |
| Registered | AK-AY Elektrik Dis Ticaret Kollektif Sirketi | | Istanbul | | TURKEY |
| Registered | Aker Kvaerner Elektro AS | | Stavanger | | NORWAY |
| Registered | Alaska Integrated Services | | Eagle River | AK | UNITED STATES |
| Registered | Albatros | | Moscow | | RUSSIAN FEDERATION |
| Registered | ALD Holcroft Vacuum Tech | | Wixom | MI | UNITED STATES |
| Registered | Alfsen OG Gunderson AS | | Oslo | | NORWAY |
| Registered | Allen Yoho Electrical, Inc. | | Lyndhurst | VA | UNITED STATES |
| Registered | ALLEZ et CIE | | Brive | | FRANCE |
| Registered | Allgeier, Martin and Associates, Inc. | | Joplin | MO | UNITED STATES |
| Registered | Alliance Service & Control Specialists | | Phoenix | AZ | UNITED STATES |
| Registered | Alliant Technologies | | Louisville | KY | UNITED STATES |
| Registered | Allied Solutions Pte Ltd | | Singapore | | SINGAPORE |
| Registered | ALPHA PROCESS | | Royat | | FRANCE |
| Registered | Alping Italia srl | | Pavia de Udine | | ITALY |
| Registered | Alpiq InTec Ost AG | | St. Gallen | | SWITZERLAND |
| Registered | Alpiq InTec Verona S.p.A. | | Verona | | ITALY |
| Registered | ALRO Engineering SA | | Martigny | Suisse | SWITZERLAND |
| Registered | ALSINTEC S.A. | | Buenos Aires | | ARGENTINA |
| Registered | Alstef Automation SA | | Orleans Cedex 9 | | FRANCE |
| Registered | Alstom Power, Inc. | | Knoxville | TN | UNITED STATES |
| Registered | Alta Tecnologia en Control ATC, SA de CV | | Guadalupe | Nuevo Leon | MEXICO |
| Registered | Alternative Process Services, Inc. | | Pell City | AL | UNITED STATES |
| Registered | Altus Automation | | Overland Park | KS | UNITED STATES |
| Registered | AM Automation Sarl | | La Chaux-de-Fonds | NE | SWITZERLAND |
| Registered | Amber Technologies | | Evry Lisses | | FRANCE |
| Registered | AMC Automation S.A | | Geer | | BELGIUM |
| Registered | AMC Engineering, Inc. | | Caguas | | PUERTO RICO |
| Registered | AMEC E&C Services, Inc. | | Tucker | GA | UNITED STATES |
| Registered | American Alarm Co., Inc. | | Oakley | CA | UNITED STATES |
| Registered | American Automation, Inc. | | Pryor | OK | UNITED STATES |
| Registered | American Control & Engineering Service, Inc. | | Rose Hill | KS | UNITED STATES |
| Registered | American Energy Management | | Marlborough | MA | UNITED STATES |
| Registered | American Mine Research | | Rocky Gap | VA | UNITED STATES |
| Registered | AMI GE International S. de R.L. de C.V. | | Monterrey | Nuevo Leon | MEXICO |
| Registered | AMK Krakow S.A. | | Krakow | | POLAND |
| Registered | AML-Soft Ltd | | Carrickfergus | | IRELAND |
| Registered | AMTE SA | | La Batie Neuve | | FRANCE |
| Registered | AMZ Srl | | Sassuolo | | ITALY |
| Registered | Andre L. de Ribeiro Albuquerque | | Sao Carlos | Sao Paulo | BRAZIL |
| Registered | Andritz Automation | | Montoursville | PA | UNITED STATES |
| Registered | Andritz Automation Inc. | | Bellingham | WA | UNITED STATES |
| Registered | Andritz, Inc. | | Roswell | GA | UNITED STATES |
| Registered | ANGEL IGLESIAS, S.A. (IKUSI) | | San Sebastian | Guipuzcoa | SPAIN |
| Registered | Anritsu Technics Co. Ltd. | | Hakata-ku | Fukuoka ken | JAPAN |
| Registered | Antti Lindfors Oy | | Kauhajoki | | FINLAND |
| Registered | AP2i | | La Penne sur Huveaune | | FRANCE |
| Registered | Apache North Sea | | Aberdeen | Aberdeenshire | UNITED KINGDOM |
| Registered | APCO, Inc. | | Salt Lake City | UT | UNITED STATES |
| Registered | APE2I | | Saint Lo | Manche | FRANCE |
| Registered | Apex Automation Oy | | Kokkola | | FINLAND |
| Registered | Apex Controls, Inc. | | Hudsonville | MI | UNITED STATES |
| Registered | APEX Engineering & Automation, LLC | | Chandler | AZ | UNITED STATES |
| Registered | Apex Engineering, Inc. | | Calvert City | KY | UNITED STATES |
| Registered | Aplicaciones de Control Industrial SA de CV | | Mexico City | D.F. | MEXICO |
| Registered | Aplicaciones de Control y Automatizacion (AC&A) | | Llanera | Asturias | SPAIN |
| Registered | Aplicacions Electriques S.A. | | Salt | Girona | SPAIN |
| Registered | Applied Control Engineering | YES | Houston | TX | UNITED STATES |
| Registered | Applied Control Engineering | | Bridgeville | PA | UNITED STATES |
| Registered | Applied Control Technology | | Texarkana | TX | UNITED STATES |
| Registered | Applied Integration UK Ltd | | Stokesley | | UNITED KINGDOM |
| Registered | Applied Sciences Group, Inc. | | Buffalo | NY | UNITED STATES |
| Registered | Applied Solutions, LLC | | Spokane | WA | UNITED STATES |
| Registered | Applied Technologies | | Bridgeton | MO | UNITED STATES |
| Registered | APR GmbH & Co KG | | Durrwangen | | GERMANY |
| Registered | APS Automasjons AS | | Melhus | | NORWAY |
| Registered | APV Asia Pte Ltd. | | Singapore | | SINGAPORE |
| Registered | APV Czech Republic s.r.o. | | Brno | | CZECH REPUBLIC |
| Registered | APV France | | Evreux Cedex | | FRANCE |
| Registered | APV Iberica | | Madrid | | SPAIN |
| Registered | APV Middle East | | Dubai | | UNITED ARAB EMIRATES |
| Registered | APV Productos y Soluciones Limitada | | Santiago | Providencia | CHILE |
| Registered | APV Sp. z o.o. | | Warszawa | | POLAND |
| Registered | APV Systems | | Dollard-des-Ormeaux | QC | CANADA |
| Registered | AQMO | | Serres Castet | Aquitaine | FRANCE |
| Registered | Aqua Systems 2000 Inc. | | Lethbridge | AB | CANADA |
| Registered | Aquesti, Inc. | | Yokohama-shi | Kanagawa | JAPAN |
| Registered | Aquitaine Electronique | | Serres-Castet | | FRANCE |
| Registered | ARA Przedsiebiorstwo Automatyki | | Braniewo | | POLAND |
| Registered | Arcade Engineering AG | | Allschwil | | SWITZERLAND |
| Registered | Arcadis | | Toledo | OH | UNITED STATES |
| Registered | ArcelorMittal Service Group Sp.zoo | | Dabrowa Gornicza | | POLAND |
| Registered | ArcSine Engineering | | Redding | CA | UNITED STATES |
| Registered | Aresco, Inc. | | Elkhorn | NE | UNITED STATES |
| Registered | Ariel Industries | | Le Petit Quevilly | Seine Maritime | FRANCE |
| Registered | Arla Foods AmbA - EttArla Solutions | | Viby J | | DENMARK |
| Registered | Armony | | Orleans Cedex 1 | | FRANCE |
| Registered | ARTIC, S.L. | | Cerdanyola del Valles | Barcelona | SPAIN |
| Registered | ARTIKA DI RODELLA STEFANO | | MANTOVA | Modena | ITALY |
| Registered | Asel-Tech Tecnologia e Automacao Ltda | | SAO CARLOS | | BRAZIL |
| Registered | Ash Electric Co., Inc. | | Colbert | GA | UNITED STATES |
| Registered | Ashley Automation and Technology, Inc. | | Rio Vista | TX | UNITED STATES |
| Registered | ASIS GmbH | | Landshut | | GERMANY |
| Registered | Asitek Oy | | Raisio | | FINLAND |
| Registered | ASKOM Sp. z o.o. | | Gliwice | | POLAND |
| Registered | ASKSteve, Inc. | | Greeley | CO | UNITED STATES |
| Registered | ASLI Sarl | | Le Taillan Medoc | | FRANCE |
| Registered | ASM Establishment | | Jeddah | Jeddah | SAUDI ARABIA |
| Registered | ASM Soft S.L. | | Vigo | Pontevedra | SPAIN |
| Registered | ASP Controls, LLC | | Lancaster | PA | UNITED STATES |
| Registered | Associated Engineering Alberta Ltd. | | Edmonton | AB | CANADA |
| Registered | ASSTER inz. Tadeusz Dabkowski | | Grajewo | | POLAND |
| Registered | Assystem France | | EQUERDREVILLE | MANCHE | FRANCE |
| Registered | Aster Sistemas de Control, S.L. | | Mairena Del Aljarafe | | SPAIN |
| Registered | ASU-TEK Ltd. | | Perm | | RUSSIAN FEDERATION |
| Registered | ATEC Automatisierungstechnik GmbH | | Lassnitzhohe | | AUSTRIA |
| Registered | ATEC Automatisierungstechnik GmbH | | Munchen | | GERMANY |
| Registered | ATECH | | Saulny | | FRANCE |
| Registered | ATI Industrie S.A. | | Thimister | | BELGIUM |
| Registered | Atis Industries | | Abidjan | | COTE D IVOIRE |
| Registered | Atkins plc | | Epson | Surrey | UNITED KINGDOM |
| Registered | AtlanticTrangas Systems | | Moscow | | RUSSIAN FEDERATION |
| Registered | ATP spol. s.r.o. | | Bratislava | | SLOVAK REPUBLIC |
| Registered | ATR Soft Oy | | Turku | | FINLAND |
| Registered | ATREM Sp. z.o.o. | | Przezmierowo k/Poznania | | POLAND |
| Registered | ATS Applied Tech Systems B.V. | | Dalfsen | | NETHERLANDS |
| Registered | ATS GmbH | | Kassel | | GERMANY |
| Registered | ATS Systems Oregon, Inc. | | Corvalis | OR | UNITED STATES |
| Registered | ATSI, Inc. | | Amherst | NY | UNITED STATES |
| Registered | Attaboy Automation, Inc. | | Ashland City | TN | UNITED STATES |
| Registered | ATX - Technicka Kancelar s.r.o. | | Zdar nad Sazavou | | CZECH REPUBLIC |
| Registered | AUCODE, S.L. | | Soto del Real | Madrid | SPAIN |
| Registered | AUDITEL Ingenieria y Servicios, S.L | | Madrid | Madrid | SPAIN |
| Registered | AUPROMAQ S.A. de C.V. | | Toluca | | MEXICO |
| Registered | Aurora Industrial Automation | | Portland | OR | UNITED STATES |
| Registered | Ausenco PSI | | Reno | NV | UNITED STATES |
| Registered | Auser S.L. | | Almendralejo | Badajoz | SPAIN |
| Registered | Austep | | Milano | Milan | ITALY |
| Registered | AUTECO SISTEMI SRL | | Stradella | Pavia | ITALY |
| Registered | Autel a.s. | | Trinec | | CZECH REPUBLIC |
| Registered | Auto-Bake Pty Ltd. | | Hornsby | NSW | AUSTRALIA |
| Registered | Auto-Comm | | Lafayette | LA | UNITED STATES |
| Registered | Autocon Systems cc | | Boksburg | Gauteng | SOUTH AFRICA |
| Registered | Autologic LLC | | Richmond | VA | UNITED STATES |
| Registered | Automated Control & Technical Services | YES | Bakersfield | CA | UNITED STATES |
| Registered | Automated Control Concepts, Inc. | | Neptune | NJ | UNITED STATES |
| Registered | Automated Power | | Flowood | MS | UNITED STATES |
| Registered | Automated Systems Engineering LLC | | Cincinnati | OH | UNITED STATES |
| Registered | Automated Systems Integration, Inc. (ASI) | | Baton Rouge | LA | UNITED STATES |
| Registered | Automatic Controls and Instrumentation Pte Ltd. | | Singapore | | SINGAPORE |
| Registered | Automatic Electrical Systems, Inc. | | Rathdrum | ID | UNITED STATES |
| Registered | AUTOMATIKA U-gi Kontr-Pomiar.Sp.z o o | | Police | | POLAND |
| Registered | Automation & Control Concepts Inc. | | St. Louis | MO | UNITED STATES |
| Registered | Automation & Control, Inc. (ACI) | | Moorestown | NJ | UNITED STATES |
| Registered | Automation Consulting Engineering Services (ACES) | | Farmington | NM | UNITED STATES |
| Registered | Automation Controls, Inc. | | Valley Falls | KS | UNITED STATES |
| Registered | Automation Electronics, Inc. | | Casper | WY | UNITED STATES |
| Registered | Automation Engineering | | Hackett | AR | UNITED STATES |
| Registered | Automation Group | | Modesto | CA | UNITED STATES |
| Registered | Automation Horizons, Inc. | YES | Des Plaines | IL | UNITED STATES |
| Registered | Automation Interface LLC | | Pleasanton | KS | UNITED STATES |
| Registered | Automation Mauricie | | Cap de la Madeleine | QC | CANADA |
| Registered | Automation Now, Inc. | | Garden Grove | CA | UNITED STATES |
| Registered | Automation Now, Inc. | | Thunder Bay | ON | CANADA |
| Registered | Automation Pacwest | | Everett | WA | UNITED STATES |
| Registered | Automation R.L. Inc. | | Varennes | QC | CANADA |
| Registered | Automation Resources | | Collegeville | PA | UNITED STATES |
| Registered | Automation Services & Controls, Inc | | Chagrin Falls | OH | UNITED STATES |
| Registered | Automation Services Inc | | Lake City | MN | UNITED STATES |
| Registered | Automation Software Engineering Ltd. | | Redditch | Worcestershire | UNITED KINGDOM |
| Registered | Automation Solutions Factory S.A. de C.V. | | Atizapan de Zaragoza | Mexico | MEXICO |
| Registered | Automation Solutions of America | | Elgin | IL | UNITED STATES |
| Registered | Automation Systems & Controls, Inc. | | Ellabell | GA | UNITED STATES |
| Registered | Automatisierungs-Team Tote GmbH | | Thedinghausen | Niedersachsen | GERMANY |
| Registered | Automatismes Industrials La Selva | | Sils | Girona | SPAIN |
| Registered | Automatismos Girona, SL | | Palol de Revardit | Girona | SPAIN |
| Registered | Automatizaciones Industriales JR3 S.A. de C.V. | | Mexico | DF | MEXICO |
| Registered | Automaton Integracao de Sistemas Ltda. | | Belo Horizonte | MG | BRAZIL |
| Registered | Automatyka Przemyslowa KOMNET | | Torun | | POLAND |
| Registered | AUTOMATYKA Sp. z o.o. | | Tarnow | | POLAND |
| Registered | Automatyka-Miedz Sp. z.o.o. Glogow | | Glogow | | POLAND |
| Registered | AutomatykaPomiary Sterowanie APS SA | | Bialystok | | POLAND |
| Registered | Automazioni e Sistemi Srl | | Caponago | Milan | ITALY |
| Registered | AUTOMIND Automacao Industrial Ltda. | | Salvador | Bahia | BRAZIL |
| Registered | Automs Ingenierie | | Bergerac | | FRANCE |
| Registered | AutoPak Engineering Corporation | | Caguas | | PUERTO RICO |
| Registered | Autopro Automation Consultants, Ltd. | | Grand Prairie | AB | CANADA |
| Registered | Autotronix (Pty), Ltd. | | Overport | Kwazulu Natal | SOUTH AFRICA |
| Registered | Autronik Automatizacion, S.L. | | Reus | Tarragona | SPAIN |