Branch Know how with clients
| 1822 S iNFORM | Banking software |
| A | |
| ADL, Arthur D'Little | Consulting |
| ALLGON | Telecommunications |
| Otmar-Alt-Stiftung | Arts |
| Arbeitskreis
Trockenlichtpause (Rencker, Hoechst, Meteor Siegen) |
Photoprinting machines |
| Artisoft | PC Software |
| Ascom Deutschland GmbH | Telecommunications |
| Ascom Hasler | Mailing systems |
| Ascom EBS | Banking automation |
| Ascom Systems & Solutions | Intelligent networks |
| Ascom Tateco | Communication systems |
| Ascom Traffic & Security | Ticket automation |
| ASI - Advanced Systems | Computer Based Training |
| Auto-TROL | Process IT |
| B | |
| Beta Systems Software | Datacenter and document management software |
| BGS | Software |
| BIS Banking Systems | Banking software |
| Boole & Babbage | Automation software |
| BULL | Hardware / Software |
| Butler Cox | IT-Services |
| C | |
| Calcomp | Plotter, CAD Software |
| Carrier1 | Telecommunications |
| Computerland Europe PC | PC - Hardware / PC - Software |
| Confair/Planbau | Planning and building boothes |
| Control Data | Hard disks |
| D | |
| 3M | Reseller-PR |
| Daisy | Printer systems |
| Dataproducts | Printer |
| Datasaab | Software |
| DS Smith | Industry |
| E | |
| egs | Text systems |
| egsSoft | Office communication Software |
| Ericsson | Telecommunications |
| G | |
| GEMINI | Telecommunications |
| General Automation | Process Engineering |
| Gould Computer Systeme | Process Engineering |
| H | |
| Haas Computer-Systeme | CAD software / facility management |
| Hewlett Packard | IT |
| Holland Automation | PC Software |
| I | |
| Informatics | Software |
| Informatik Kooperation | IT Services |
| Intel | Hardware |
| IPC | Mess- und Regeltechnik |
| Internationales Institut für Biosynthese IIBS | Biosynthese Education and Training |
| J | |
| Joens Mess- & Regeltechnik | Metrology and control engineering |
| K | |
| König + Neurath | Office furniture systems |
| Krohne Messtechnik | Metrology and control engineering |
| Kyocera | Printer |
| L | |
| Lattwein | Software (Industry) |
| Legent/ITD | CBT - Computer Based Training |
| M | |
| Masstor | Mass storage systems |
| Maul | Metrology and control engineering |
| MEMOREX | Harddisk systems |
| Mertens, Ulrich | Arts |
| Minolta | Copier / fax / text processing |
| Münzer & Diehl | Process Engineering |
| N | |
| NCR | Cash data systems |
| NEC | Telecommunications (UMTS produkts) |
| Negretti & Zambra | Process Engineering |
| Neopost | Mailing systems |
| NORSK DATA | Process Engineering |
| Northern Telecom | Telecommunications |
| NYNEX/FLAG | Telecommunications |
| O | |
| ORIGIN | Consulting and software |
| outpark.com | Internet (Business-to-Business) / E-Procurement |
| P | |
| Pansophic Systems | Mainframe software |
| Ploentzke | Application software |
| Q | |
| Quios.com | Internet (Business-to-Consumer) |
| Qume | Printer |
| S | |
| SAPIENS | Software |
| SEMS | Process Engineering |
| Software AG | Database software |
| SOPRA | Software (SAP software and consulting) |
| Sparkassen Informatik | IT services |
| SUN Express | Marketing & sales of hardware products |
| SYSTAR | Software |
| T | |
| Telematics | Telecommunications |
| Telemechanic | Metrology and control engineering |
| Telsis | Call Center solutions |
| Terra Data | Mainframe systems |
| The Open Group (X/Open-OSF) | IT Standardisations (open systems) |
| Thomson - CSF | Process engineering |
| TSI Software AG | ERP solutions |
| Tulip | PC hard- and software |
| V | |
| VEBA (VTA) | Process engineering |
| VM Software | Software |
| Klausbernd Vollmar | Psychology |
| W | |
| Waddington Games | Sports and games |
| Western Union | Financial services |
| Westinghouse | Consulting |
| X | |
| Xerox / Diablo |
Printer
|
| Editorial work | |
| Energie
& Charakter Energy & Character |
Editor in Chief of Energie & Charakter (German) and Engery & Character (English) |