Fabian Rücker
Private Equity Investor bei DPE Deutsche Private Equity GmbH
Aktive Beziehungen
Name | Geschlecht | Alter | Unternehmensverbindungen | Zusammenarbeit |
---|---|---|---|---|
Volker Hichert | M | 59 |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 17 Jahre |
Marc Thiery | M | 57 |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 17 Jahre |
Hosnia Said | F | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | - |
Guido Prehn | M | 46 |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 14 Jahre |
Mark Suderow | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 15 Jahre |
Karolin Luise Plechinger | F | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 2 Jahre |
Peter Jäckle | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 2 Jahre |
Philipp Unterberger | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 2 Jahre |
Mathias Makowski | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 2 Jahre |
Mathias Weidner | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 7 Jahre |
Aurelia Maurath | F | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 4 Jahre |
Alexander Matzner | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 4 Jahre |
Malgorzata Kowalska | F | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 7 Jahre |
Elmar Koschka | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 3 Jahre |
Marc P. Bielitza | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 2 Jahre |
Joanna Albrecht | F | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 3 Jahre |
Sandra Schaefer | F | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 1 Jahre |
Anica Zuber | F | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 3 Jahre |
Anton Schubaschitz | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 6 Jahre |
Andreas Schmid | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 4 Jahre |
Franz Reiffenstuel | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 5 Jahre |
Michael Wolnicki | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 2 Jahre |
Florian Kaiser | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 5 Jahre |
Alfred Gossner | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | - |
Walter H. Stuerzinger | M | 68 |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | - |
Bernd Knobloch | M | 72 |
Johann Wolfgang Goethe-Universität Frankfurt am Main
| 21 Jahre |
Peter Leibinger | M | 57 |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 6 Jahre |
Alexander Norman Brennan | M | 77 |
The University of Sydney
| 18 Jahre |
Nils Bennemann | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 7 Jahre |
Jim Kester | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 7 Jahre |
Michael Heise | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | - |
Frank Müller | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | - |
Fabio Adjoudani | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 6 Jahre |
Nicolas von Rosty | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 8 Jahre |
Katja Christine Langenbucher | M | 55 |
Johann Wolfgang Goethe-Universität Frankfurt am Main
| 17 Jahre |
Sergej Lehmann | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 7 Jahre |
Christian Philip Kasten | M | 48 |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 9 Jahre |
Benjamin Kleidt | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 8 Jahre |
Peter Zillekens | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | - |
Rudolf Kinsky | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 10 Jahre |
Benno Vogel | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 1 Jahre |
Beziehungs-Chart
Beziehungen zu mehreren Unternehmen
Ehemalige Beziehungen
Name | Geschlecht | Alter | Unternehmensverbindungen | Zusammenarbeit |
---|---|---|---|---|
Yassin Hankir | M | - |
Johann Wolfgang Goethe-Universität Frankfurt am Main
| 4 Jahre |
Markus Wenz | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | - |
Simon Victor Pliquett | M | 40 |
Johann Wolfgang Goethe-Universität Frankfurt am Main
| 5 Jahre |
Ulf Schweda | M | 60 |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | - |
Wolfgang Neuner | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany.
Johann Wolfgang Goethe-Universität Frankfurt am Main
| 4 Jahre |
Lars Becker | M | 50 |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 9 Jahre |
Anselm Stiehl | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany.
Johann Wolfgang Goethe-Universität Frankfurt am Main
| 5 Jahre |
Huiyi Wang | M | 36 |
The University of Sydney
| 5 Jahre |
Paul Artur Glenn | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | - |
Jürgen Heraeus | M | 88 |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | - |
Tin Yi Lee | F | 40 |
The University of Sydney
| 4 Jahre |
Michael Moser | M | - |
Johann Wolfgang Goethe-Universität Frankfurt am Main
| 3 Jahre |
Sadia Wern Sukhera | F | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 3 Jahre |
Dan Xia Chen | F | 45 |
The University of Sydney
| 1 Jahre |
Su Zhang | F | - |
The University of Sydney
| 4 Jahre |
Alexandra Stagl | F | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 1 Jahre |
Sven Lindner | M | - |
Johann Wolfgang Goethe-Universität Frankfurt am Main
| 4 Jahre |
Felix Wolf | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 2 Jahre |
Anja Disput | M | 47 |
Johann Wolfgang Goethe-Universität Frankfurt am Main
| 5 Jahre |
Maximilian Hutter | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 2 Jahre |
Christian Stammschulte | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 3 Jahre |
Kerstin Lopatta | M | 55 |
Johann Wolfgang Goethe-Universität Frankfurt am Main
| 3 Jahre |
Xiang Liang Lin | M | 39 |
The University of Sydney
| 4 Jahre |
Matthes Felkl | M | - |
Johann Wolfgang Goethe-Universität Frankfurt am Main
| 4 Jahre |
Mun Lin Tan | F | 37 |
The University of Sydney
| 3 Jahre |
James Rydge | M | - |
The University of Sydney
| 3 Jahre |
David Emmanuel | M | - |
The University of Sydney
| 4 Jahre |
Linda Sawallich | F | - |
Johann Wolfgang Goethe-Universität Frankfurt am Main
| 4 Jahre |
Jia Yin Fan | F | 37 |
The University of Sydney
| 4 Jahre |
Nicole Walker | F | - |
The University of Sydney
| 5 Jahre |
Sid Chandrasekaran | M | - |
The University of Sydney
| 4 Jahre |
Shi Li | M | 41 |
The University of Sydney
| 1 Jahre |
Daniel Darling | M | - |
The University of Sydney
| 3 Jahre |
Cheng Cai Zhou | M | 43 |
The University of Sydney
| 1 Jahre |
Richard Lancaster | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 4 Jahre |
Felipe Telles | M | - |
The University of Sydney
| 2 Jahre |
Glyn Lawcock | M | - |
The University of Sydney
| 3 Jahre |
Rolf Steffens | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 11 Jahre |
André Silvério Marques | M | 43 |
Johann Wolfgang Goethe-Universität Frankfurt am Main
| 6 Jahre |
Norbert Danneberg | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 3 Jahre |
Johannes Schmederer | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 8 Jahre |
Natalia Osadcii | F | - |
Johann Wolfgang Goethe-Universität Frankfurt am Main
| 4 Jahre |
Christoph Petri | M | - |
The University of Sydney
| 2 Jahre |
Kathrin Heitmann | F | - |
Johann Wolfgang Goethe-Universität Frankfurt am Main
| 5 Jahre |
Arthur Mangaratua Simatupang | M | 51 |
The University of Sydney
| 1 Jahre |
Sebastian Säuberlich | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 2 Jahre |
Yi Fei Ma | F | 41 |
The University of Sydney
| 1 Jahre |
Dominic Gatt | M | - |
The University of Sydney
| 4 Jahre |
Daniel Herter | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 6 Jahre |
Tanja Fondel | F | 47 |
Johann Wolfgang Goethe-Universität Frankfurt am Main
| 4 Jahre |
Shu Bian | F | 42 |
The University of Sydney
| 1 Jahre |
Marko Celic | M | - |
Johann Wolfgang Goethe-Universität Frankfurt am Main
| 3 Jahre |
Philipp Otto | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | - |
Damian Fox | M | - |
The University of Sydney
| 4 Jahre |
Illya Lebedynets | M | - |
Johann Wolfgang Goethe-Universität Frankfurt am Main
| 5 Jahre |
David Crow | M | - |
The University of Sydney
| - |
Mark Su | M | - |
The University of Sydney
| 5 Jahre |
Markus Feuerecker | M | - |
DPE Deutsche Private Equity GmbH
DPE Deutsche Private Equity GmbH Investment ManagersFinance DPE Deutsche Private Equity GmbH (DPE) is an independent private equity firm founded in 2007 by Volker Hichert and Marc Thiery. The firm is headquartered in Munich, Germany. | 3 Jahre |
Christopher Wong | M | - |
The University of Sydney
| 4 Jahre |
Statistik
Land | Beziehungen | % des Gesamten |
---|---|---|
Deutschland | 74 | 74,00% |
Australien | 26 | 26,00% |
Alter der Beziehungen
Aktive
Vergangene
Herr
Frau
Aufsichtsräte
Führungskräfte
Ursprung der Beziehungen
- Börse
- Insiders
- Fabian Rücker
- Persönliches Netzwerk