The following mandates have been issued to INPEC ENGINEERING GMBH:
| 1993 - 2006 | Agency in Romania | |
| MANNESMANN ANLAGENBAU, Düsseldorf | 1995 - 1997 | Agency in Romania |
| RUHRGAS AG, Essen | 1997 - 2003 | Consultancy in Romania |
| 1998 - 2003 | Consultancy in Romania | |
| 1998 - 2003 | Consultancy in Romania | |
| STEAG AG, Essen | 1998 - 2003 | Consultancy in Romania |
| MARUBENI, Düsseldorf | 1999 - 2000 | Consultancy in Romania |
| ENBW, Stuttgart |
2000 - 2002 |
Consultancy in Romania |
| DBT ( Deutsche Bergbautechnik ), Essen | 2002 - 2003 | Consultancy in Romania |
| HOCHTIEF AIRPORT, Essen | 2006 - 2009 | Consultancy in Romania |
| 2011 - 2012 | Agency in Romania | |
| HAMON ENVIROSERV, Essen | 2011 - 2012 | Agency in Romania |
| PRISMA IMPIANTI, Basaluzzo | since 2011 | Agency in Germany |
| TAMINI TRASFORMATORI, Melegnano | since 2013 | Agency in Germany |
| TAMINI TRASFORMATORI, Melegnano | since 2013 |
Agency in Germany Poland, Czech Republic |
|
2016 – 2018 |
Representation in German |
|
|
2016 – 2018 |
Representation in German |
|
|
SDEE – Shandong ElectricalEngineering & Equipment Group Co., Ltd. |
since 2016 |
Representation in Germany for |
|
SGB-Smit Group, Regensburg |
since 2018 |
Consultancy, representation |