| Client name | City | Country |
|---|---|---|
| Bayernoil Raffineriegesellschaft mbH | Neustadt a. d. Donau | Germany |
| Bayernwerk Kernenergie GmbH | Essenbach | Germany |
| BBF Ingenieur GmbH | Dreieich | Germany |
| BEB Erdgas und Erdöl GmbH | Schneiderkrug | Germany |
| BFS Apparatebau GmbH | Dietzenbach-Stbg | Germany |
| Bildungsverbund Chemie und Technik e.V. | Halle | Germany |
| Bilfinger EMS GmbH | Hattingen | Germany |
| Bilfinger Engineering & Maintenance GmbH | Ludwigshafen | Germany |
| Bilfinger Engineering & Technologies GmbH | Oberhausen | Germany |
| Bilfinger Global IT GmbH | Mannheim | Germany |
| Bilfinger GreyLogix foodtec GmbH | Neumünster | Germany |
| Bilfinger Maintenance GmbH | Leuna | Germany |
| Bilfinger Maintenance Süd GmbH | Gersthofen | Germany |
| Bilfinger Nuclear & Energy Transition GmbH | Oberhausen | Germany |
| BK Giulini Chemie GmbH & Co OHG | Ludwigshafen | Germany |
| Blue Cube Germany Productions GmbH & Co. KG | Stade | Germany |
| Bopp & Reuther / IMI | Mannheim | Germany |
| Bopp & Reuther Messtechnik GmbH | Speyer | Germany |
| Borealis Polymere GmbH | Burghausen | Germany |
| Borsig Service GmbH | Berlin | Germany |
| BORSIG ValveTech GmbH | Leegebruch/Berlin | Germany |
| BORSIG ZM Compression GmbH | Meerane | Germany |
| BP Europa SE | Lingen (Ems) | Germany |
| BP Gelsenkirchen GmbH | Gelsenkirchen | Germany |
| Braun Bürosysteme GmbH | Köln | Germany |