| Client name | City | Country |
|---|---|---|
| PowerspeX BV | Hengelo | Netherlands |
| Prayon S.A. | Engis | Belgium |
| PRE-VENT GmbH | Burghausen | Germany |
| Primetals Technologies Austria GmbH | Linz | Austria |
| Process Automation Solutions GmbH | Ludwigshafen | Germany |
| Process Automation Solutions GmbH | Bornheim - Roisdorf | Germany |
| Process Supplies & Accessories, Inc. | Loudon | United States |
| ProCS s.r.o. | Sal'a | Slovakia |
| Proger S.p.A. | San Giovanni Teatino | Italy |
| Projects & Development India Ltd | Noida | India |
| Projects & Development India Ltd. | Baroda | India |
| Prokon Mühendislik ve Müsavirlik A.S. | Kahramankazan/Ankara | Turkey |
| Proval Inc. | Siheung-Si, Gyeonggi-Do | Republic of Korea |
| Providence Doytch Limited | Baku | |
| Prozessleittechnik Seffer | Hannover | Germany |
| PSC S.p.A. Engineering & Contracting | Bovisio Masciago | Italy |
| PSG Fertigungs und Prozeßautomations GmbH | Burghausen | Germany |
| PTT Global Chemical Public Company Limited | Bangkok | Thailand |
| PUMA Energy International B.V. | Geneva | Switzerland |
| Puma Energy Services (Latam) LLC | Guaynabo | Puerto Rico |
| PYROCONTROLE | Meyzieu | France |
| Pyro°Control AS | Solbergelva | Norway |
| Pyrum Innovations AG | Dillingen/Saar | Germany |
| QATAR FERTILISER COMPANY (SAQ) | Mesaieed | Qatar |
| Qatar Fuel Additives Company Limited (QFAC) | Doha | Qatar |