| Kundenname | Stadt | Land |
|---|---|---|
| NOPA Industriearmaturen GmbH Eisenhüttenstadt | Eisenhüttenstadt | Germany |
| Nord-West Kavernengesellschaft mbH | Wilhelmshaven | Germany |
| Nouryon Industrial Chemicals | Frankfurt am Main | Germany |
| NUKEM Technologies Engineering Services GmbH | Alzenau | Germany |
| NUKEM Technologies GmbH | Alzenau | Germany |
| Nuplex Resins GmbH | Bitterfeld Wolfen | Germany |
| Nynas GmbH & Co. KG | Hamburg | Germany |
| Nynas GmbH & Company KG | Hamburg | Germany |
| Ohl Gutermuth Industrial Valves GmbH | Altenstadt | Germany |
| OMV Deutschland GmbH | Burghausen | Germany |
| Optitec Gesellschaft für ökonomische | Wiesbaden | Germany |
| OSCHATZ GmbH | Essen | Germany |
| Otto-von-Guericke-Universität Magdeburg | Magdeburg | Germany |
| Outotec GmbH & Co KG | Oberursel | Germany |
| OXEA Services GmbH | Oberhausen | Germany |
| Oxxynova GmbH | Steyerberg | Germany |
| P & M Industrie-Anlagenplanung GmbH | Frechen | Germany |
| Paul-Ehrlich-Schule | Frankfurt/Main | Germany |
| PCE Realtec GmbH | Berlin | Germany |
| PCK Raffinerie GmbH | Schwedt/Oder | Germany |
| PCR Engineering GmbH | Wallenhorst | Germany |
| PELZER EDV+PERIPHERIE GmbH | Mönchengladbach | Germany |
| Petroplus Raffinerie Ingolstadt GmbH | Kösching | Germany |
| Pfeiffer Chemie-Armaturenbau GmbH | Kempen | Germany |
| Pharmatec GmbH, a Syntegon company | Dresden | Germany |