| Client name | City | Country |
|---|---|---|
| Institute for Plasma Research | Gandhinagar | India |
| INTECH ENGINEERS s. r. o. | Bratislava | Slovakia |
| Integral Engineering und Umwelttechnik GmbH | Wien | Austria |
| Intergraph (Deutschland) GmbH | Ismaning | Germany |
| Intergraph Israel LTD | Kiryat-Motzkin | Israel |
| International West Technology Transfer Company | Tehran | |
| INTRA-AUTOMATION GmbH | Grevenbroich | Germany |
| Invensys Flow Control | Markkleeberg | Germany |
| Invensys Flow Control France SAS | Cergy Pontoise Cedex | France |
| Invensys Intelligent Automation Systems GmbH | Wien | Austria |
| Invensys Systems GmbH | Ratingen | Germany |
| Invensys Systems Italia S.p.A. | Sesto San Giovanni | Italy |
| Invensys Systems n. v. | Baarn | Netherlands |
| Invensys Systems N.V./S.A. | Aartselaar | Belgium |
| IPIP S.A. | Ploiesti | Romania |
| IPRO Industrieprojekt GmbH | Braunschweig | Germany |
| IQatalyst B.V. | De Meern | Netherlands |
| Isar Aerospace Technologies SE | Ottobrunn | Germany |
| Iskenderun Enerji Üretim ve Tic. A.S. | Yumurtalik / Adana | Turkey |
| ITALVALV Srl | S. Antonio Di Basaluzzo | Italy |
| ITALVALVOLE s.a.s. | COSSATO | Italy |
| ITank B.V. | Rotterdam | Netherlands |
| itap GmbH | Bad Dürrenberg | Germany |
| ITC Instytut Techniki Cieplnej | Lódz | Poland |
| ITC Rubis Terminal Antwerp NV | Beveren | Belgium |