Margarita Dilley
Vorsitzender bei Central Hudson Gas & Electric Corp.
Vermögen: 117 960 $ am 30.04.2024
Aktive Beziehungen
Name | Geschlecht | Alter | Unternehmensverbindungen | Zusammenarbeit |
---|---|---|---|---|
Christopher M. Capone | M | 61 |
Central Hudson Gas & Electric Corp.
Central Hudson Gas & Electric Corp. Electric UtilitiesUtilities Central Hudson Gas & Electric Corp. engages in the provision of natural gas and electricity. It also offers value-added products and services, including energy efficiency and economic development programs. The company was founded in 1926 and is headquartered in Poughkeepsie, NY.
CH Energy Group, Inc.
CH Energy Group, Inc. Gas DistributorsUtilities CH Energy Group, Inc. is a holding company, which engages in the provision of natural gas and electric utility services. It operates through the following segments: Electric, Natural Gas, and Other Businesses and Investments. The Other Businesses and Investments segment consists of holding company's activities. The company was founded in 2000 and is headquartered in Poughkeepsie, NY. | 24 Jahre |
James Laurito | M | 67 |
CH Energy Group, Inc.
CH Energy Group, Inc. Gas DistributorsUtilities CH Energy Group, Inc. is a holding company, which engages in the provision of natural gas and electric utility services. It operates through the following segments: Electric, Natural Gas, and Other Businesses and Investments. The Other Businesses and Investments segment consists of holding company's activities. The company was founded in 2000 and is headquartered in Poughkeepsie, NY. | 15 Jahre |
Michael L. Mosher | M | - |
Central Hudson Gas & Electric Corp.
Central Hudson Gas & Electric Corp. Electric UtilitiesUtilities Central Hudson Gas & Electric Corp. engages in the provision of natural gas and electricity. It also offers value-added products and services, including energy efficiency and economic development programs. The company was founded in 1926 and is headquartered in Poughkeepsie, NY.
CH Energy Group, Inc.
CH Energy Group, Inc. Gas DistributorsUtilities CH Energy Group, Inc. is a holding company, which engages in the provision of natural gas and electric utility services. It operates through the following segments: Electric, Natural Gas, and Other Businesses and Investments. The Other Businesses and Investments segment consists of holding company's activities. The company was founded in 2000 and is headquartered in Poughkeepsie, NY. | 19 Jahre |
David Hutchens | M | 57 | 6 Jahre | |
Stacey A. Renner | M | - |
Central Hudson Gas & Electric Corp.
Central Hudson Gas & Electric Corp. Electric UtilitiesUtilities Central Hudson Gas & Electric Corp. engages in the provision of natural gas and electricity. It also offers value-added products and services, including energy efficiency and economic development programs. The company was founded in 1926 and is headquartered in Poughkeepsie, NY.
CH Energy Group, Inc.
CH Energy Group, Inc. Gas DistributorsUtilities CH Energy Group, Inc. is a holding company, which engages in the provision of natural gas and electric utility services. It operates through the following segments: Electric, Natural Gas, and Other Businesses and Investments. The Other Businesses and Investments segment consists of holding company's activities. The company was founded in 2000 and is headquartered in Poughkeepsie, NY. | 21 Jahre |
Jocelyn Perry | F | - |
Central Hudson Gas & Electric Corp.
Central Hudson Gas & Electric Corp. Electric UtilitiesUtilities Central Hudson Gas & Electric Corp. engages in the provision of natural gas and electricity. It also offers value-added products and services, including energy efficiency and economic development programs. The company was founded in 1926 and is headquartered in Poughkeepsie, NY.
CH Energy Group, Inc.
CH Energy Group, Inc. Gas DistributorsUtilities CH Energy Group, Inc. is a holding company, which engages in the provision of natural gas and electric utility services. It operates through the following segments: Electric, Natural Gas, and Other Businesses and Investments. The Other Businesses and Investments segment consists of holding company's activities. The company was founded in 2000 and is headquartered in Poughkeepsie, NY. | 6 Jahre |
Jo Zurel | M | 61 | 8 Jahre | |
Karen Gosse | F | - | 20 Jahre | |
James Reid | M | - |
Central Hudson Gas & Electric Corp.
Central Hudson Gas & Electric Corp. Electric UtilitiesUtilities Central Hudson Gas & Electric Corp. engages in the provision of natural gas and electricity. It also offers value-added products and services, including energy efficiency and economic development programs. The company was founded in 1926 and is headquartered in Poughkeepsie, NY. | 6 Jahre |
Karen McCarthy | F | - | 8 Jahre | |
Sharon A. McGinnis | F | 55 |
Central Hudson Gas & Electric Corp.
Central Hudson Gas & Electric Corp. Electric UtilitiesUtilities Central Hudson Gas & Electric Corp. engages in the provision of natural gas and electricity. It also offers value-added products and services, including energy efficiency and economic development programs. The company was founded in 1926 and is headquartered in Poughkeepsie, NY. | 15 Jahre |
Gary Smith | M | - | 7 Jahre | |
Gianna Manes | F | 59 | 3 Jahre | |
Julie Avery | F | - | 13 Jahre | |
Lora Gescheidle | F | - |
Central Hudson Gas & Electric Corp.
Central Hudson Gas & Electric Corp. Electric UtilitiesUtilities Central Hudson Gas & Electric Corp. engages in the provision of natural gas and electricity. It also offers value-added products and services, including energy efficiency and economic development programs. The company was founded in 1926 and is headquartered in Poughkeepsie, NY. | - |
Lisa Durocher | F | 57 | 3 Jahre | |
Lawrence Borgard | M | 62 | 7 Jahre | |
Lisa Crutchfield | F | 61 | 2 Jahre | |
Joseph B. Koczko | M | - |
Central Hudson Gas & Electric Corp.
Central Hudson Gas & Electric Corp. Electric UtilitiesUtilities Central Hudson Gas & Electric Corp. engages in the provision of natural gas and electricity. It also offers value-added products and services, including energy efficiency and economic development programs. The company was founded in 1926 and is headquartered in Poughkeepsie, NY. | - |
Pierre Blouin | M | 66 | 9 Jahre | |
Nora Duke | F | 62 |
CH Energy Group, Inc.
CH Energy Group, Inc. Gas DistributorsUtilities CH Energy Group, Inc. is a holding company, which engages in the provision of natural gas and electric utility services. It operates through the following segments: Electric, Natural Gas, and Other Businesses and Investments. The Other Businesses and Investments segment consists of holding company's activities. The company was founded in 2000 and is headquartered in Poughkeepsie, NY. | 8 Jahre |
Denise Doring VanBuren | F | 62 |
Central Hudson Gas & Electric Corp.
Central Hudson Gas & Electric Corp. Electric UtilitiesUtilities Central Hudson Gas & Electric Corp. engages in the provision of natural gas and electricity. It also offers value-added products and services, including energy efficiency and economic development programs. The company was founded in 1926 and is headquartered in Poughkeepsie, NY. | 24 Jahre |
Maura Clark | F | 65 | 9 Jahre | |
Julie Dobson | F | 67 | 6 Jahre | |
Herbert Stanley Marshall | M | 72 |
Central Hudson Gas & Electric Corp.
Central Hudson Gas & Electric Corp. Electric UtilitiesUtilities Central Hudson Gas & Electric Corp. engages in the provision of natural gas and electricity. It also offers value-added products and services, including energy efficiency and economic development programs. The company was founded in 1926 and is headquartered in Poughkeepsie, NY.
CH Energy Group, Inc.
CH Energy Group, Inc. Gas DistributorsUtilities CH Energy Group, Inc. is a holding company, which engages in the provision of natural gas and electric utility services. It operates through the following segments: Electric, Natural Gas, and Other Businesses and Investments. The Other Businesses and Investments segment consists of holding company's activities. The company was founded in 2000 and is headquartered in Poughkeepsie, NY. | 11 Jahre |
Tracey Ball | F | 66 | 10 Jahre | |
Donald Marchand | M | 61 | 1 Jahre | |
Ryan Hawthorne | M | - |
Central Hudson Gas & Electric Corp.
Central Hudson Gas & Electric Corp. Electric UtilitiesUtilities Central Hudson Gas & Electric Corp. engages in the provision of natural gas and electricity. It also offers value-added products and services, including energy efficiency and economic development programs. The company was founded in 1926 and is headquartered in Poughkeepsie, NY. | - |
Jeffrey Doane | M | - |
Central Hudson Gas & Electric Corp.
Central Hudson Gas & Electric Corp. Electric UtilitiesUtilities Central Hudson Gas & Electric Corp. engages in the provision of natural gas and electricity. It also offers value-added products and services, including energy efficiency and economic development programs. The company was founded in 1926 and is headquartered in Poughkeepsie, NY. | - |
Stuart Lochray | M | - | 3 Jahre | |
Susan M Gray | F | 51 |
Central Hudson Gas & Electric Corp.
Central Hudson Gas & Electric Corp. Electric UtilitiesUtilities Central Hudson Gas & Electric Corp. engages in the provision of natural gas and electricity. It also offers value-added products and services, including energy efficiency and economic development programs. The company was founded in 1926 and is headquartered in Poughkeepsie, NY. | - |
Steven M. Fetter | M | 72 |
Central Hudson Gas & Electric Corp.
Central Hudson Gas & Electric Corp. Electric UtilitiesUtilities Central Hudson Gas & Electric Corp. engages in the provision of natural gas and electricity. It also offers value-added products and services, including energy efficiency and economic development programs. The company was founded in 1926 and is headquartered in Poughkeepsie, NY. | 22 Jahre |
Geoffrey Brackett | M | - |
Central Hudson Gas & Electric Corp.
Central Hudson Gas & Electric Corp. Electric UtilitiesUtilities Central Hudson Gas & Electric Corp. engages in the provision of natural gas and electricity. It also offers value-added products and services, including energy efficiency and economic development programs. The company was founded in 1926 and is headquartered in Poughkeepsie, NY. | - |
Kevin J. Cleary | M | - |
Central Hudson Gas & Electric Corp.
Central Hudson Gas & Electric Corp. Electric UtilitiesUtilities Central Hudson Gas & Electric Corp. engages in the provision of natural gas and electricity. It also offers value-added products and services, including energy efficiency and economic development programs. The company was founded in 1926 and is headquartered in Poughkeepsie, NY. | 8 Jahre |
Stephanie Amaimo | F | - | 8 Jahre | |
Regan O'Dea | M | - | 10 Jahre | |
Mary D. Madden | F | - |
Central Hudson Gas & Electric Corp.
Central Hudson Gas & Electric Corp. Electric UtilitiesUtilities Central Hudson Gas & Electric Corp. engages in the provision of natural gas and electricity. It also offers value-added products and services, including energy efficiency and economic development programs. The company was founded in 1926 and is headquartered in Poughkeepsie, NY. | 11 Jahre |
Mark Kastner | M | - |
Central Hudson Gas & Electric Corp.
Central Hudson Gas & Electric Corp. Electric UtilitiesUtilities Central Hudson Gas & Electric Corp. engages in the provision of natural gas and electricity. It also offers value-added products and services, including energy efficiency and economic development programs. The company was founded in 1926 and is headquartered in Poughkeepsie, NY. | 11 Jahre |
Paul A. Colbert | M | - |
Central Hudson Gas & Electric Corp.
Central Hudson Gas & Electric Corp. Electric UtilitiesUtilities Central Hudson Gas & Electric Corp. engages in the provision of natural gas and electricity. It also offers value-added products and services, including energy efficiency and economic development programs. The company was founded in 1926 and is headquartered in Poughkeepsie, NY. | - |
Anthony S. Campagiorni | M | - |
Central Hudson Gas & Electric Corp.
Central Hudson Gas & Electric Corp. Electric UtilitiesUtilities Central Hudson Gas & Electric Corp. engages in the provision of natural gas and electricity. It also offers value-added products and services, including energy efficiency and economic development programs. The company was founded in 1926 and is headquartered in Poughkeepsie, NY. | 15 Jahre |
Kevin Woodbury | M | - | 2 Jahre | |
Heather C. Briccetti | F | - |
Central Hudson Gas & Electric Corp.
Central Hudson Gas & Electric Corp. Electric UtilitiesUtilities Central Hudson Gas & Electric Corp. engages in the provision of natural gas and electricity. It also offers value-added products and services, including energy efficiency and economic development programs. The company was founded in 1926 and is headquartered in Poughkeepsie, NY. | 10 Jahre |
Ron Hinsley Hinsley | M | - | 5 Jahre | |
Frank Larocca | M | - |
Central Hudson Gas & Electric Corp.
Central Hudson Gas & Electric Corp. Electric UtilitiesUtilities Central Hudson Gas & Electric Corp. engages in the provision of natural gas and electricity. It also offers value-added products and services, including energy efficiency and economic development programs. The company was founded in 1926 and is headquartered in Poughkeepsie, NY. | 1 Jahre |
Roger A. Dall'Antonia | M | - |
Central Hudson Gas & Electric Corp.
Central Hudson Gas & Electric Corp. Electric UtilitiesUtilities Central Hudson Gas & Electric Corp. engages in the provision of natural gas and electricity. It also offers value-added products and services, including energy efficiency and economic development programs. The company was founded in 1926 and is headquartered in Poughkeepsie, NY. | 6 Jahre |
Kimberly J. Wright | F | 56 |
CH Energy Group, Inc.
CH Energy Group, Inc. Gas DistributorsUtilities CH Energy Group, Inc. is a holding company, which engages in the provision of natural gas and electric utility services. It operates through the following segments: Electric, Natural Gas, and Other Businesses and Investments. The Other Businesses and Investments segment consists of holding company's activities. The company was founded in 2000 and is headquartered in Poughkeepsie, NY. | 18 Jahre |
Tanya Finlay | F | - | 15 Jahre |
Beziehungs-Chart
Beziehungen zu mehreren Unternehmen
Ehemalige Beziehungen
Name | Geschlecht | Alter | Unternehmensverbindungen | Zusammenarbeit |
---|---|---|---|---|
Barry Perry | M | 59 |
CH Energy Group, Inc.
CH Energy Group, Inc. Gas DistributorsUtilities CH Energy Group, Inc. is a holding company, which engages in the provision of natural gas and electric utility services. It operates through the following segments: Electric, Natural Gas, and Other Businesses and Investments. The Other Businesses and Investments segment consists of holding company's activities. The company was founded in 2000 and is headquartered in Poughkeepsie, NY. | 20 Jahre |
Charles Freni | M | 64 |
Central Hudson Gas & Electric Corp.
Central Hudson Gas & Electric Corp. Electric UtilitiesUtilities Central Hudson Gas & Electric Corp. engages in the provision of natural gas and electricity. It also offers value-added products and services, including energy efficiency and economic development programs. The company was founded in 1926 and is headquartered in Poughkeepsie, NY. | 18 Jahre |
Steven Lant | M | 67 |
CH Energy Group, Inc.
CH Energy Group, Inc. Gas DistributorsUtilities CH Energy Group, Inc. is a holding company, which engages in the provision of natural gas and electric utility services. It operates through the following segments: Electric, Natural Gas, and Other Businesses and Investments. The Other Businesses and Investments segment consists of holding company's activities. The company was founded in 2000 and is headquartered in Poughkeepsie, NY. | 11 Jahre |
Ivan Lustig | M | - |
Cornell University
Cornell University Other Consumer ServicesConsumer Services Cornell University is an educational institution that offers undergraduate and post graduate programs. It was founded in 1865 and is based in Ithaca, NY. | 6 Jahre |
Douglas Haughey | M | 67 | 14 Jahre | |
Kongkiat Opaswongkarn | M | 67 |
The Wharton School of the University of Pennsylvania
| 6 Jahre |
Gary Davis | M | - |
Cornell University
Cornell University Other Consumer ServicesConsumer Services Cornell University is an educational institution that offers undergraduate and post graduate programs. It was founded in 1865 and is based in Ithaca, NY.
The Trustees of Columbia University in The City of New York
| 8 Jahre |
Andrew Burke Weisman | M | - |
The Trustees of Columbia University in The City of New York
| 5 Jahre |
Brit J. Bartter | M | - |
Cornell University
Cornell University Other Consumer ServicesConsumer Services Cornell University is an educational institution that offers undergraduate and post graduate programs. It was founded in 1865 and is based in Ithaca, NY. | 3 Jahre |
Mohamed Ibn Chambas | M | 73 |
Cornell University
Cornell University Other Consumer ServicesConsumer Services Cornell University is an educational institution that offers undergraduate and post graduate programs. It was founded in 1865 and is based in Ithaca, NY. | 4 Jahre |
Kenin M. Spivak | M | 67 |
The Trustees of Columbia University in The City of New York
| 7 Jahre |
Alan B. Levande | M | 67 |
The Wharton School of the University of Pennsylvania
| 6 Jahre |
Adil Ahmad | M | 66 |
Cornell University
Cornell University Other Consumer ServicesConsumer Services Cornell University is an educational institution that offers undergraduate and post graduate programs. It was founded in 1865 and is based in Ithaca, NY. | 6 Jahre |
Gary F. Simons | M | - |
Cornell University
Cornell University Other Consumer ServicesConsumer Services Cornell University is an educational institution that offers undergraduate and post graduate programs. It was founded in 1865 and is based in Ithaca, NY. | 4 Jahre |
R. Harry McWatters | M | 79 | 12 Jahre | |
Karl S. Okamoto | M | 61 |
The Trustees of Columbia University in The City of New York
| 7 Jahre |
David C. Bennett | M | - | 14 Jahre | |
Jeff Kronthal | M | - |
The Wharton School of the University of Pennsylvania
| 5 Jahre |
Anders Klein | M | 71 |
The Trustees of Columbia University in The City of New York
| 6 Jahre |
Ronald Munkley | M | 77 | 9 Jahre | |
Radzuan bin Abdul Rahman | M | 80 |
Cornell University
Cornell University Other Consumer ServicesConsumer Services Cornell University is an educational institution that offers undergraduate and post graduate programs. It was founded in 1865 and is based in Ithaca, NY. | 4 Jahre |
Thomas L. Hierl | M | - |
Cornell University
Cornell University Other Consumer ServicesConsumer Services Cornell University is an educational institution that offers undergraduate and post graduate programs. It was founded in 1865 and is based in Ithaca, NY. | 5 Jahre |
Maria Matesanz | F | - |
The Trustees of Columbia University in The City of New York
| 5 Jahre |
In-Joon Kim | M | 75 |
The Trustees of Columbia University in The City of New York
| 7 Jahre |
Oliverio Laperal | M | 73 |
Cornell University
Cornell University Other Consumer ServicesConsumer Services Cornell University is an educational institution that offers undergraduate and post graduate programs. It was founded in 1865 and is based in Ithaca, NY. | 6 Jahre |
Jay Cohen | M | - |
Cornell University
Cornell University Other Consumer ServicesConsumer Services Cornell University is an educational institution that offers undergraduate and post graduate programs. It was founded in 1865 and is based in Ithaca, NY. | 4 Jahre |
Gregg David Pollack | M | 62 |
The Wharton School of the University of Pennsylvania
| 5 Jahre |
D. Williams | M | 67 |
The Wharton School of the University of Pennsylvania
| 5 Jahre |
Paul Bonavia | M | 72 | 5 Jahre | |
Peter E. Case | M | 69 | 11 Jahre | |
Robert Howard Steinfeld | M | 70 |
The Trustees of Columbia University in The City of New York
| 7 Jahre |
Fred W. Hill | M | 73 |
The Trustees of Columbia University in The City of New York
| 2 Jahre |
E. Michel Kruse | M | 80 |
CH Energy Group, Inc.
CH Energy Group, Inc. Gas DistributorsUtilities CH Energy Group, Inc. is a holding company, which engages in the provision of natural gas and electric utility services. It operates through the following segments: Electric, Natural Gas, and Other Businesses and Investments. The Other Businesses and Investments segment consists of holding company's activities. The company was founded in 2000 and is headquartered in Poughkeepsie, NY. | 11 Jahre |
Jeffrey D. Tranen | M | 77 |
CH Energy Group, Inc.
CH Energy Group, Inc. Gas DistributorsUtilities CH Energy Group, Inc. is a holding company, which engages in the provision of natural gas and electric utility services. It operates through the following segments: Electric, Natural Gas, and Other Businesses and Investments. The Other Businesses and Investments segment consists of holding company's activities. The company was founded in 2000 and is headquartered in Poughkeepsie, NY. | 9 Jahre |
David Robert LaDuke | M | 63 |
The Trustees of Columbia University in The City of New York
| 5 Jahre |
Scott Jay Lederman | M | - |
The Wharton School of the University of Pennsylvania
| 5 Jahre |
Stanley J. Grubel | M | 81 |
CH Energy Group, Inc.
CH Energy Group, Inc. Gas DistributorsUtilities CH Energy Group, Inc. is a holding company, which engages in the provision of natural gas and electric utility services. It operates through the following segments: Electric, Natural Gas, and Other Businesses and Investments. The Other Businesses and Investments segment consists of holding company's activities. The company was founded in 2000 and is headquartered in Poughkeepsie, NY. | 14 Jahre |
Manuel J. Iraola | M | 75 |
CH Energy Group, Inc.
CH Energy Group, Inc. Gas DistributorsUtilities CH Energy Group, Inc. is a holding company, which engages in the provision of natural gas and electric utility services. It operates through the following segments: Electric, Natural Gas, and Other Businesses and Investments. The Other Businesses and Investments segment consists of holding company's activities. The company was founded in 2000 and is headquartered in Poughkeepsie, NY. | 7 Jahre |
Andrew Heyer | M | 66 |
The Wharton School of the University of Pennsylvania
| 6 Jahre |
Ernest R. Verebelyi | M | 76 |
CH Energy Group, Inc.
CH Energy Group, Inc. Gas DistributorsUtilities CH Energy Group, Inc. is a holding company, which engages in the provision of natural gas and electric utility services. It operates through the following segments: Electric, Natural Gas, and Other Businesses and Investments. The Other Businesses and Investments segment consists of holding company's activities. The company was founded in 2000 and is headquartered in Poughkeepsie, NY. | 7 Jahre |
Joel Michael Greenblatt | M | 66 |
The Wharton School of the University of Pennsylvania
| 5 Jahre |
Stephen McLean | M | 66 |
The Wharton School of the University of Pennsylvania
| 5 Jahre |
Josef Lakonishok | M | - |
Cornell University
Cornell University Other Consumer ServicesConsumer Services Cornell University is an educational institution that offers undergraduate and post graduate programs. It was founded in 1865 and is based in Ithaca, NY. | 3 Jahre |
C. Faulders | M | 74 |
COMSAT Corp.
The Wharton School of the University of Pennsylvania
| 6 Jahre |
Richard Stanton Pzena | M | 65 |
The Wharton School of the University of Pennsylvania
| 5 Jahre |
Larry Luxenberg | M | 69 |
Cornell University
Cornell University Other Consumer ServicesConsumer Services Cornell University is an educational institution that offers undergraduate and post graduate programs. It was founded in 1865 and is based in Ithaca, NY.
The Trustees of Columbia University in The City of New York
| 9 Jahre |
Edward T. Tokar | M | 76 |
CH Energy Group, Inc.
CH Energy Group, Inc. Gas DistributorsUtilities CH Energy Group, Inc. is a holding company, which engages in the provision of natural gas and electric utility services. It operates through the following segments: Electric, Natural Gas, and Other Businesses and Investments. The Other Businesses and Investments segment consists of holding company's activities. The company was founded in 2000 and is headquartered in Poughkeepsie, NY. | 4 Jahre |
Ida J. Goodreau | F | 72 | 10 Jahre | |
Judah S. Kraushaar | M | - |
Cornell University
Cornell University Other Consumer ServicesConsumer Services Cornell University is an educational institution that offers undergraduate and post graduate programs. It was founded in 1865 and is based in Ithaca, NY. | 5 Jahre |
Carolyn Nannini Dolan | F | - |
The Trustees of Columbia University in The City of New York
| 2 Jahre |
William McAleer | M | - |
Cornell University
Cornell University Other Consumer ServicesConsumer Services Cornell University is an educational institution that offers undergraduate and post graduate programs. It was founded in 1865 and is based in Ithaca, NY. | 6 Jahre |
Stuart W. Thorn | M | 67 |
The Wharton School of the University of Pennsylvania
| 2 Jahre |
Shelly Porges | F | - |
Cornell University
Cornell University Other Consumer ServicesConsumer Services Cornell University is an educational institution that offers undergraduate and post graduate programs. It was founded in 1865 and is based in Ithaca, NY. | 7 Jahre |
Statistik
Land | Beziehungen | % des Gesamten |
---|---|---|
Vereinigte Staaten | 72 | 72,00% |
Kanada | 33 | 33,00% |
Alter der Beziehungen
Aktive
Vergangene
Herr
Frau
Aufsichtsräte
Führungskräfte
Ursprung der Beziehungen
- Börse
- Insiders
- Margarita Dilley
- Persönliches Netzwerk