Claus Hollinger
Vorstandsvorsitzender bei EDEKA Südbayern Beteiligungsgesellschaft mbH
Aktive Beziehungen
Name | Geschlecht | Alter | Unternehmensverbindungen | Zusammenarbeit |
---|---|---|---|---|
Josef Lechertshuber | M | - |
EDEKA Südbayern Beteiligungsgesellschaft mbH
EDEKA Südbayern Beteiligungsgesellschaft mbH Food RetailRetail Trade Part of EDEKA ZENTRALE Stiftung & Co. KG, EDEKA Südbayern Beteiligungsgesellschaft mbH is a company based in Gaimersheim, Germany. The CEOs of the German company are Anna Maria Schalk, Claus Hollinger, Werner Gruber. The company operates supermarkets.
EDEKA Südbayern eG
EDEKA Südbayern eG Food RetailRetail Trade EDEKA Südbayern eG is based in Gaimersheim, Germany and has subsidiaries in Germany. EDEKA Südbayern eG is a German company that offers weekly deals and a wide range of products in their EDEKA markets. The private company also provides recipes, nutrition topics, and opportunities to participate in contests. The CEOs of the company are Annemarie Schalk, Claus Hollinger, and Kaspar März.
EDEKA ZENTRALE Stiftung & Co. KG
EDEKA ZENTRALE Stiftung & Co. KG Food RetailRetail Trade EDEKA ZENTRALE Stiftung & Co. KG engages in the management and operation of supermarkets. The firm offers organic fruits, vegetables, dairy products, fish and meat products, breakfast items, as well as bread and beverages. It also markets non-food products such as shirts, pants, jackets, and underwear. The company was founded in 1898 and is headquartered in Hamburg, Germany. | - |
Wolfgang Leeb | M | - |
EDEKA Südbayern eG
EDEKA Südbayern eG Food RetailRetail Trade EDEKA Südbayern eG is based in Gaimersheim, Germany and has subsidiaries in Germany. EDEKA Südbayern eG is a German company that offers weekly deals and a wide range of products in their EDEKA markets. The private company also provides recipes, nutrition topics, and opportunities to participate in contests. The CEOs of the company are Annemarie Schalk, Claus Hollinger, and Kaspar März.
EDEKA Südbayern Beteiligungsgesellschaft mbH
EDEKA Südbayern Beteiligungsgesellschaft mbH Food RetailRetail Trade Part of EDEKA ZENTRALE Stiftung & Co. KG, EDEKA Südbayern Beteiligungsgesellschaft mbH is a company based in Gaimersheim, Germany. The CEOs of the German company are Anna Maria Schalk, Claus Hollinger, Werner Gruber. The company operates supermarkets. | - |
Leo Schwaiberger | M | - |
EDEKA Südbayern eG
EDEKA Südbayern eG Food RetailRetail Trade EDEKA Südbayern eG is based in Gaimersheim, Germany and has subsidiaries in Germany. EDEKA Südbayern eG is a German company that offers weekly deals and a wide range of products in their EDEKA markets. The private company also provides recipes, nutrition topics, and opportunities to participate in contests. The CEOs of the company are Annemarie Schalk, Claus Hollinger, and Kaspar März.
EDEKA Südbayern Beteiligungsgesellschaft mbH
EDEKA Südbayern Beteiligungsgesellschaft mbH Food RetailRetail Trade Part of EDEKA ZENTRALE Stiftung & Co. KG, EDEKA Südbayern Beteiligungsgesellschaft mbH is a company based in Gaimersheim, Germany. The CEOs of the German company are Anna Maria Schalk, Claus Hollinger, Werner Gruber. The company operates supermarkets. | - |
Claas Meineke | M | 53 |
EDEKA ZENTRALE Stiftung & Co. KG
EDEKA ZENTRALE Stiftung & Co. KG Food RetailRetail Trade EDEKA ZENTRALE Stiftung & Co. KG engages in the management and operation of supermarkets. The firm offers organic fruits, vegetables, dairy products, fish and meat products, breakfast items, as well as bread and beverages. It also markets non-food products such as shirts, pants, jackets, and underwear. The company was founded in 1898 and is headquartered in Hamburg, Germany. | 7 Jahre |
Herbert Esslinger | M | - |
EDEKA Südbayern eG
EDEKA Südbayern eG Food RetailRetail Trade EDEKA Südbayern eG is based in Gaimersheim, Germany and has subsidiaries in Germany. EDEKA Südbayern eG is a German company that offers weekly deals and a wide range of products in their EDEKA markets. The private company also provides recipes, nutrition topics, and opportunities to participate in contests. The CEOs of the company are Annemarie Schalk, Claus Hollinger, and Kaspar März.
EDEKA Südbayern Beteiligungsgesellschaft mbH
EDEKA Südbayern Beteiligungsgesellschaft mbH Food RetailRetail Trade Part of EDEKA ZENTRALE Stiftung & Co. KG, EDEKA Südbayern Beteiligungsgesellschaft mbH is a company based in Gaimersheim, Germany. The CEOs of the German company are Anna Maria Schalk, Claus Hollinger, Werner Gruber. The company operates supermarkets. | 8 Jahre |
Dietmar Fackler | M | - |
EDEKA Südbayern Beteiligungsgesellschaft mbH
EDEKA Südbayern Beteiligungsgesellschaft mbH Food RetailRetail Trade Part of EDEKA ZENTRALE Stiftung & Co. KG, EDEKA Südbayern Beteiligungsgesellschaft mbH is a company based in Gaimersheim, Germany. The CEOs of the German company are Anna Maria Schalk, Claus Hollinger, Werner Gruber. The company operates supermarkets.
EDEKA Südbayern eG
EDEKA Südbayern eG Food RetailRetail Trade EDEKA Südbayern eG is based in Gaimersheim, Germany and has subsidiaries in Germany. EDEKA Südbayern eG is a German company that offers weekly deals and a wide range of products in their EDEKA markets. The private company also provides recipes, nutrition topics, and opportunities to participate in contests. The CEOs of the company are Annemarie Schalk, Claus Hollinger, and Kaspar März. | - |
Sabine Fanderl | F | - |
EDEKA Südbayern Beteiligungsgesellschaft mbH
EDEKA Südbayern Beteiligungsgesellschaft mbH Food RetailRetail Trade Part of EDEKA ZENTRALE Stiftung & Co. KG, EDEKA Südbayern Beteiligungsgesellschaft mbH is a company based in Gaimersheim, Germany. The CEOs of the German company are Anna Maria Schalk, Claus Hollinger, Werner Gruber. The company operates supermarkets.
EDEKA Südbayern eG
EDEKA Südbayern eG Food RetailRetail Trade EDEKA Südbayern eG is based in Gaimersheim, Germany and has subsidiaries in Germany. EDEKA Südbayern eG is a German company that offers weekly deals and a wide range of products in their EDEKA markets. The private company also provides recipes, nutrition topics, and opportunities to participate in contests. The CEOs of the company are Annemarie Schalk, Claus Hollinger, and Kaspar März. | - |
Andreas Schmid | M | - |
EDEKA Südbayern Beteiligungsgesellschaft mbH
EDEKA Südbayern Beteiligungsgesellschaft mbH Food RetailRetail Trade Part of EDEKA ZENTRALE Stiftung & Co. KG, EDEKA Südbayern Beteiligungsgesellschaft mbH is a company based in Gaimersheim, Germany. The CEOs of the German company are Anna Maria Schalk, Claus Hollinger, Werner Gruber. The company operates supermarkets.
EDEKA Südbayern eG
EDEKA Südbayern eG Food RetailRetail Trade EDEKA Südbayern eG is based in Gaimersheim, Germany and has subsidiaries in Germany. EDEKA Südbayern eG is a German company that offers weekly deals and a wide range of products in their EDEKA markets. The private company also provides recipes, nutrition topics, and opportunities to participate in contests. The CEOs of the company are Annemarie Schalk, Claus Hollinger, and Kaspar März. | - |
Joseph Pfeilstetter | M | - |
EDEKA Südbayern eG
EDEKA Südbayern eG Food RetailRetail Trade EDEKA Südbayern eG is based in Gaimersheim, Germany and has subsidiaries in Germany. EDEKA Südbayern eG is a German company that offers weekly deals and a wide range of products in their EDEKA markets. The private company also provides recipes, nutrition topics, and opportunities to participate in contests. The CEOs of the company are Annemarie Schalk, Claus Hollinger, and Kaspar März.
EDEKA Südbayern Beteiligungsgesellschaft mbH
EDEKA Südbayern Beteiligungsgesellschaft mbH Food RetailRetail Trade Part of EDEKA ZENTRALE Stiftung & Co. KG, EDEKA Südbayern Beteiligungsgesellschaft mbH is a company based in Gaimersheim, Germany. The CEOs of the German company are Anna Maria Schalk, Claus Hollinger, Werner Gruber. The company operates supermarkets. | - |
Nicole Bauer | F | - |
EDEKA Südbayern Beteiligungsgesellschaft mbH
EDEKA Südbayern Beteiligungsgesellschaft mbH Food RetailRetail Trade Part of EDEKA ZENTRALE Stiftung & Co. KG, EDEKA Südbayern Beteiligungsgesellschaft mbH is a company based in Gaimersheim, Germany. The CEOs of the German company are Anna Maria Schalk, Claus Hollinger, Werner Gruber. The company operates supermarkets. | - |
Patrick Da Pozzo | M | - |
EDEKA Südbayern Beteiligungsgesellschaft mbH
EDEKA Südbayern Beteiligungsgesellschaft mbH Food RetailRetail Trade Part of EDEKA ZENTRALE Stiftung & Co. KG, EDEKA Südbayern Beteiligungsgesellschaft mbH is a company based in Gaimersheim, Germany. The CEOs of the German company are Anna Maria Schalk, Claus Hollinger, Werner Gruber. The company operates supermarkets. | - |
Anja Knödl | F | - |
EDEKA Südbayern Beteiligungsgesellschaft mbH
EDEKA Südbayern Beteiligungsgesellschaft mbH Food RetailRetail Trade Part of EDEKA ZENTRALE Stiftung & Co. KG, EDEKA Südbayern Beteiligungsgesellschaft mbH is a company based in Gaimersheim, Germany. The CEOs of the German company are Anna Maria Schalk, Claus Hollinger, Werner Gruber. The company operates supermarkets. | - |
Markus Mosa | M | 56 |
EDEKA ZENTRALE Stiftung & Co. KG
EDEKA ZENTRALE Stiftung & Co. KG Food RetailRetail Trade EDEKA ZENTRALE Stiftung & Co. KG engages in the management and operation of supermarkets. The firm offers organic fruits, vegetables, dairy products, fish and meat products, breakfast items, as well as bread and beverages. It also markets non-food products such as shirts, pants, jackets, and underwear. The company was founded in 1898 and is headquartered in Hamburg, Germany. | 16 Jahre |
Anna Maria Schalk | F | - |
EDEKA Südbayern Beteiligungsgesellschaft mbH
EDEKA Südbayern Beteiligungsgesellschaft mbH Food RetailRetail Trade Part of EDEKA ZENTRALE Stiftung & Co. KG, EDEKA Südbayern Beteiligungsgesellschaft mbH is a company based in Gaimersheim, Germany. The CEOs of the German company are Anna Maria Schalk, Claus Hollinger, Werner Gruber. The company operates supermarkets. | - |
Roswitha Sommer | F | - |
EDEKA Südbayern Beteiligungsgesellschaft mbH
EDEKA Südbayern Beteiligungsgesellschaft mbH Food RetailRetail Trade Part of EDEKA ZENTRALE Stiftung & Co. KG, EDEKA Südbayern Beteiligungsgesellschaft mbH is a company based in Gaimersheim, Germany. The CEOs of the German company are Anna Maria Schalk, Claus Hollinger, Werner Gruber. The company operates supermarkets. | - |
Stefan Giese | M | 56 |
EDEKA ZENTRALE Stiftung & Co. KG
EDEKA ZENTRALE Stiftung & Co. KG Food RetailRetail Trade EDEKA ZENTRALE Stiftung & Co. KG engages in the management and operation of supermarkets. The firm offers organic fruits, vegetables, dairy products, fish and meat products, breakfast items, as well as bread and beverages. It also markets non-food products such as shirts, pants, jackets, and underwear. The company was founded in 1898 and is headquartered in Hamburg, Germany. | - |
Stefan Alex | M | - |
EDEKA Südbayern eG
EDEKA Südbayern eG Food RetailRetail Trade EDEKA Südbayern eG is based in Gaimersheim, Germany and has subsidiaries in Germany. EDEKA Südbayern eG is a German company that offers weekly deals and a wide range of products in their EDEKA markets. The private company also provides recipes, nutrition topics, and opportunities to participate in contests. The CEOs of the company are Annemarie Schalk, Claus Hollinger, and Kaspar März. | - |
Sebastian Kohrmann | M | 40 |
EDEKA ZENTRALE Stiftung & Co. KG
EDEKA ZENTRALE Stiftung & Co. KG Food RetailRetail Trade EDEKA ZENTRALE Stiftung & Co. KG engages in the management and operation of supermarkets. The firm offers organic fruits, vegetables, dairy products, fish and meat products, breakfast items, as well as bread and beverages. It also markets non-food products such as shirts, pants, jackets, and underwear. The company was founded in 1898 and is headquartered in Hamburg, Germany. | - |
Kaspar März | M | - |
EDEKA Südbayern eG
EDEKA Südbayern eG Food RetailRetail Trade EDEKA Südbayern eG is based in Gaimersheim, Germany and has subsidiaries in Germany. EDEKA Südbayern eG is a German company that offers weekly deals and a wide range of products in their EDEKA markets. The private company also provides recipes, nutrition topics, and opportunities to participate in contests. The CEOs of the company are Annemarie Schalk, Claus Hollinger, and Kaspar März. | - |
Werner Gruber | M | - |
EDEKA Südbayern Beteiligungsgesellschaft mbH
EDEKA Südbayern Beteiligungsgesellschaft mbH Food RetailRetail Trade Part of EDEKA ZENTRALE Stiftung & Co. KG, EDEKA Südbayern Beteiligungsgesellschaft mbH is a company based in Gaimersheim, Germany. The CEOs of the German company are Anna Maria Schalk, Claus Hollinger, Werner Gruber. The company operates supermarkets. | - |
Reiner Schenke | M | - |
EDEKA ZENTRALE Stiftung & Co. KG
EDEKA ZENTRALE Stiftung & Co. KG Food RetailRetail Trade EDEKA ZENTRALE Stiftung & Co. KG engages in the management and operation of supermarkets. The firm offers organic fruits, vegetables, dairy products, fish and meat products, breakfast items, as well as bread and beverages. It also markets non-food products such as shirts, pants, jackets, and underwear. The company was founded in 1898 and is headquartered in Hamburg, Germany. | - |
Tobias Schnabel | M | - |
EDEKA ZENTRALE Stiftung & Co. KG
EDEKA ZENTRALE Stiftung & Co. KG Food RetailRetail Trade EDEKA ZENTRALE Stiftung & Co. KG engages in the management and operation of supermarkets. The firm offers organic fruits, vegetables, dairy products, fish and meat products, breakfast items, as well as bread and beverages. It also markets non-food products such as shirts, pants, jackets, and underwear. The company was founded in 1898 and is headquartered in Hamburg, Germany. | - |
Oliver Czajkowski | M | - |
EDEKA ZENTRALE Stiftung & Co. KG
EDEKA ZENTRALE Stiftung & Co. KG Food RetailRetail Trade EDEKA ZENTRALE Stiftung & Co. KG engages in the management and operation of supermarkets. The firm offers organic fruits, vegetables, dairy products, fish and meat products, breakfast items, as well as bread and beverages. It also markets non-food products such as shirts, pants, jackets, and underwear. The company was founded in 1898 and is headquartered in Hamburg, Germany. | - |
Dirk Neuhaus | M | - |
EDEKA ZENTRALE Stiftung & Co. KG
EDEKA ZENTRALE Stiftung & Co. KG Food RetailRetail Trade EDEKA ZENTRALE Stiftung & Co. KG engages in the management and operation of supermarkets. The firm offers organic fruits, vegetables, dairy products, fish and meat products, breakfast items, as well as bread and beverages. It also markets non-food products such as shirts, pants, jackets, and underwear. The company was founded in 1898 and is headquartered in Hamburg, Germany. | - |
Christos Didis | M | - |
EDEKA ZENTRALE Stiftung & Co. KG
EDEKA ZENTRALE Stiftung & Co. KG Food RetailRetail Trade EDEKA ZENTRALE Stiftung & Co. KG engages in the management and operation of supermarkets. The firm offers organic fruits, vegetables, dairy products, fish and meat products, breakfast items, as well as bread and beverages. It also markets non-food products such as shirts, pants, jackets, and underwear. The company was founded in 1898 and is headquartered in Hamburg, Germany. | - |
Stefan Legat | M | - |
EDEKA ZENTRALE Stiftung & Co. KG
EDEKA ZENTRALE Stiftung & Co. KG Food RetailRetail Trade EDEKA ZENTRALE Stiftung & Co. KG engages in the management and operation of supermarkets. The firm offers organic fruits, vegetables, dairy products, fish and meat products, breakfast items, as well as bread and beverages. It also markets non-food products such as shirts, pants, jackets, and underwear. The company was founded in 1898 and is headquartered in Hamburg, Germany. | - |
Karl Stefan Preuß | M | - |
EDEKA ZENTRALE Stiftung & Co. KG
EDEKA ZENTRALE Stiftung & Co. KG Food RetailRetail Trade EDEKA ZENTRALE Stiftung & Co. KG engages in the management and operation of supermarkets. The firm offers organic fruits, vegetables, dairy products, fish and meat products, breakfast items, as well as bread and beverages. It also markets non-food products such as shirts, pants, jackets, and underwear. The company was founded in 1898 and is headquartered in Hamburg, Germany. | - |
Mark Rosenkranz | M | - |
EDEKA ZENTRALE Stiftung & Co. KG
EDEKA ZENTRALE Stiftung & Co. KG Food RetailRetail Trade EDEKA ZENTRALE Stiftung & Co. KG engages in the management and operation of supermarkets. The firm offers organic fruits, vegetables, dairy products, fish and meat products, breakfast items, as well as bread and beverages. It also markets non-food products such as shirts, pants, jackets, and underwear. The company was founded in 1898 and is headquartered in Hamburg, Germany. | - |
Wolfgang Matthiessen | M | - |
EDEKA ZENTRALE Stiftung & Co. KG
EDEKA ZENTRALE Stiftung & Co. KG Food RetailRetail Trade EDEKA ZENTRALE Stiftung & Co. KG engages in the management and operation of supermarkets. The firm offers organic fruits, vegetables, dairy products, fish and meat products, breakfast items, as well as bread and beverages. It also markets non-food products such as shirts, pants, jackets, and underwear. The company was founded in 1898 and is headquartered in Hamburg, Germany. | - |
Jan Frauen | M | - |
EDEKA ZENTRALE Stiftung & Co. KG
EDEKA ZENTRALE Stiftung & Co. KG Food RetailRetail Trade EDEKA ZENTRALE Stiftung & Co. KG engages in the management and operation of supermarkets. The firm offers organic fruits, vegetables, dairy products, fish and meat products, breakfast items, as well as bread and beverages. It also markets non-food products such as shirts, pants, jackets, and underwear. The company was founded in 1898 and is headquartered in Hamburg, Germany. | - |
Uwe Kohler | M | - |
EDEKA ZENTRALE Stiftung & Co. KG
EDEKA ZENTRALE Stiftung & Co. KG Food RetailRetail Trade EDEKA ZENTRALE Stiftung & Co. KG engages in the management and operation of supermarkets. The firm offers organic fruits, vegetables, dairy products, fish and meat products, breakfast items, as well as bread and beverages. It also markets non-food products such as shirts, pants, jackets, and underwear. The company was founded in 1898 and is headquartered in Hamburg, Germany. | - |
Rainer Huber | M | 56 |
EDEKA ZENTRALE Stiftung & Co. KG
EDEKA ZENTRALE Stiftung & Co. KG Food RetailRetail Trade EDEKA ZENTRALE Stiftung & Co. KG engages in the management and operation of supermarkets. The firm offers organic fruits, vegetables, dairy products, fish and meat products, breakfast items, as well as bread and beverages. It also markets non-food products such as shirts, pants, jackets, and underwear. The company was founded in 1898 and is headquartered in Hamburg, Germany. | - |
Frank Block | M | - |
EDEKA ZENTRALE Stiftung & Co. KG
EDEKA ZENTRALE Stiftung & Co. KG Food RetailRetail Trade EDEKA ZENTRALE Stiftung & Co. KG engages in the management and operation of supermarkets. The firm offers organic fruits, vegetables, dairy products, fish and meat products, breakfast items, as well as bread and beverages. It also markets non-food products such as shirts, pants, jackets, and underwear. The company was founded in 1898 and is headquartered in Hamburg, Germany. | - |
Annemarie Schalk | F | - |
EDEKA Südbayern eG
EDEKA Südbayern eG Food RetailRetail Trade EDEKA Südbayern eG is based in Gaimersheim, Germany and has subsidiaries in Germany. EDEKA Südbayern eG is a German company that offers weekly deals and a wide range of products in their EDEKA markets. The private company also provides recipes, nutrition topics, and opportunities to participate in contests. The CEOs of the company are Annemarie Schalk, Claus Hollinger, and Kaspar März. | - |
Hans-Richard Schneeweiß | M | - |
EDEKA ZENTRALE Stiftung & Co. KG
EDEKA ZENTRALE Stiftung & Co. KG Food RetailRetail Trade EDEKA ZENTRALE Stiftung & Co. KG engages in the management and operation of supermarkets. The firm offers organic fruits, vegetables, dairy products, fish and meat products, breakfast items, as well as bread and beverages. It also markets non-food products such as shirts, pants, jackets, and underwear. The company was founded in 1898 and is headquartered in Hamburg, Germany. | - |
Jürgen Norbert Baur | M | - |
EDEKA ZENTRALE Stiftung & Co. KG
EDEKA ZENTRALE Stiftung & Co. KG Food RetailRetail Trade EDEKA ZENTRALE Stiftung & Co. KG engages in the management and operation of supermarkets. The firm offers organic fruits, vegetables, dairy products, fish and meat products, breakfast items, as well as bread and beverages. It also markets non-food products such as shirts, pants, jackets, and underwear. The company was founded in 1898 and is headquartered in Hamburg, Germany. | - |
Konrad Bursch | M | - |
EDEKA ZENTRALE Stiftung & Co. KG
EDEKA ZENTRALE Stiftung & Co. KG Food RetailRetail Trade EDEKA ZENTRALE Stiftung & Co. KG engages in the management and operation of supermarkets. The firm offers organic fruits, vegetables, dairy products, fish and meat products, breakfast items, as well as bread and beverages. It also markets non-food products such as shirts, pants, jackets, and underwear. The company was founded in 1898 and is headquartered in Hamburg, Germany. | - |
Jens Fette | M | - |
EDEKA ZENTRALE Stiftung & Co. KG
EDEKA ZENTRALE Stiftung & Co. KG Food RetailRetail Trade EDEKA ZENTRALE Stiftung & Co. KG engages in the management and operation of supermarkets. The firm offers organic fruits, vegetables, dairy products, fish and meat products, breakfast items, as well as bread and beverages. It also markets non-food products such as shirts, pants, jackets, and underwear. The company was founded in 1898 and is headquartered in Hamburg, Germany. | - |
Robert Aschoff | M | - |
EDEKA ZENTRALE Stiftung & Co. KG
EDEKA ZENTRALE Stiftung & Co. KG Food RetailRetail Trade EDEKA ZENTRALE Stiftung & Co. KG engages in the management and operation of supermarkets. The firm offers organic fruits, vegetables, dairy products, fish and meat products, breakfast items, as well as bread and beverages. It also markets non-food products such as shirts, pants, jackets, and underwear. The company was founded in 1898 and is headquartered in Hamburg, Germany. | - |
Marc Kuhlmann | M | - |
EDEKA ZENTRALE Stiftung & Co. KG
EDEKA ZENTRALE Stiftung & Co. KG Food RetailRetail Trade EDEKA ZENTRALE Stiftung & Co. KG engages in the management and operation of supermarkets. The firm offers organic fruits, vegetables, dairy products, fish and meat products, breakfast items, as well as bread and beverages. It also markets non-food products such as shirts, pants, jackets, and underwear. The company was founded in 1898 and is headquartered in Hamburg, Germany. | 3 Jahre |
Beziehungs-Chart
Beziehungen zu mehreren Unternehmen
Statistik
Land | Beziehungen | % des Gesamten |
---|---|---|
Deutschland | 40 | 100,00% |
Alter der Beziehungen
Aktive
Vergangene
Herr
Frau
Aufsichtsräte
Führungskräfte
Ursprung der Beziehungen
- Börse
- Insiders
- Claus Hollinger
- Persönliches Netzwerk