| Kundenname | Stadt | Land |
|---|---|---|
| INEOS Geel | Geel | Belgium |
| Ineos Manufacturing Belgium NV | Antwerp | Belgium |
| INEOS Manufacturing Deutschland GmbH | Köln | Germany |
| Ineos N.V. | Zwijndrecht | Belgium |
| Ineos Oxide Services NV | Zwijndrecht | Belgium |
| INEOS Phenol GmbH | Gladbeck | Germany |
| INEOS Solvents Germany GmbH | Herne | Germany |
| INEOS Solvents Germany GmbH | Moers | Germany |
| Ineos Styrolution Belgium NV | Antwerpen 4 | Belgium |
| Ineos Styrolution Köln GmbH | Köln | Germany |
| INEOS Styrolution Ludwigshafen GmbH | Frankfurt am Main | Germany |
| Ineos-Vinyls Deutschland GmbH | Wilhelmshaven | Germany |
| INERATEC GmbH | Karlsruhe | Germany |
| Infineum Italia S.r.l. | Vado Ligure | Italy |
| InfraServ GmbH & Co. Gendorf KG | Burgkirchen | Germany |
| Infraserv GmbH & Co. Höchst KG | Frankfurt | Germany |
| Infraserv GmbH & Co. Wiesbaden KG | Wiesbaden | Germany |
| Ing.-Büro Noll | Heiligkreuzsteinach | Germany |
| Ingenierie Software Technologie | Port-Jérôme-sur-Seine | France |
| Ingenieur Büro | Bielefeld | Germany |
| Ingenieur Büro | Schlier | Germany |
| Ingenieur Büro Brackmann GmbH | Hanau | Germany |
| Ingenieurbetrieb und Anlagenbau Leipzig GmbH | Leipzig | Germany |
| Ingenieurbüro DDT | Siegburg | Germany |
| Ingenieurbüro für Versorgungstechnik Sailer | Tübingen | Germany |