R Wilson Orr
Direktor/Vorstandsmitglied bei Quest Analytics LLC
Aktive Beziehungen
| Name | Geschlecht | Alter | Unternehmensverbindungen | Zusammenarbeit |
|---|---|---|---|---|
| David H. Hill | M | - |
Quest Analytics LLC
 Quest Analytics LLC Packaged SoftwareTechnology Services Quest Analytics LLC develops platform for healthcare network analysis and reporting solutions. Its services include medicare advantage, data management, impact analysis, market readiness, network design, and custom reporting. The company was founded by David H. Hill and John P. Weis and is headquartered in Appleton, WI. | - |
| Robert Rosner | M | 64 |
VCP I Inc
 VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | 36 Jahre |
| John P. Weis | M | - |
Quest Analytics LLC
Quest Analytics LLC Packaged SoftwareTechnology Services Quest Analytics LLC develops platform for healthcare network analysis and reporting solutions. Its services include medicare advantage, data management, impact analysis, market readiness, network design, and custom reporting. The company was founded by David H. Hill and John P. Weis and is headquartered in Appleton, WI. | - |
| Brendan J. Spillane | M | - |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | - |
| Allen Meza | M | - |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | 29 Jahre |
| Alex Veronneau | M | - |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | 5 Jahre |
| Diya Talwar | F | - |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | 5 Jahre |
| Ian C Singleton | M | - |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | 5 Jahre |
| Ari Tulla | M | - |
Quest Analytics LLC
Quest Analytics LLC Packaged SoftwareTechnology Services Quest Analytics LLC develops platform for healthcare network analysis and reporting solutions. Its services include medicare advantage, data management, impact analysis, market readiness, network design, and custom reporting. The company was founded by David H. Hill and John P. Weis and is headquartered in Appleton, WI. | 6 Jahre |
| Jake S. Olson | M | - |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | - |
| Michael W. Vaupen | M | - |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | 3 Jahre |
| Michelle Duncan Bergman | F | - |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | - |
| James Kelley | M | 71 |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | - |
| Art Nagle | M | - |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | - |
| Kevin Mundt | M | 70 |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | - |
| Dan O'Connell | M | 70 |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | 36 Jahre |
| Norman Alpert | M | 65 |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | 36 Jahre |
| Roger Holstein | M | 71 |
Quest Analytics LLC
Quest Analytics LLC Packaged SoftwareTechnology Services Quest Analytics LLC develops platform for healthcare network analysis and reporting solutions. Its services include medicare advantage, data management, impact analysis, market readiness, network design, and custom reporting. The company was founded by David H. Hill and John P. Weis and is headquartered in Appleton, WI.
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | 18 Jahre |
| Stephen Gold | M | 65 |
Quest Analytics LLC
Quest Analytics LLC Packaged SoftwareTechnology Services Quest Analytics LLC develops platform for healthcare network analysis and reporting solutions. Its services include medicare advantage, data management, impact analysis, market readiness, network design, and custom reporting. The company was founded by David H. Hill and John P. Weis and is headquartered in Appleton, WI.
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | 3 Jahre |
| James L. Elrod | M | 69 |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | 26 Jahre |
| Karen Demeusy | F | - |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | - |
| Susan M. DeGiulio | F | - |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | - |
| ANN Marie Bussanich | F | - |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | - |
| Balvinder Adib | F | - |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | - |
| Helen Lee | F | - |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | 36 Jahre |
| Renee Hamilton | F | - |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | - |
| Anna McGoldrick | F | - |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | - |
| Susan Hoffmann | F | - |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | 19 Jahre |
| Angela Yun | F | - |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | 5 Jahre |
| Brian Schwartz | M | - |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | - |
| Ellin Jarmel | F | - |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | - |
| Jennifer Cowperthwaite | F | - |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | - |
| Kimberly Lu | F | - |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | 3 Jahre |
| Jane Wildman | F | 63 |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | - |
| Kenneth J. O'Keefe | M | 69 |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | 18 Jahre |
| Rita Johnson-Mills | F | 65 |
Quest Analytics LLC
Quest Analytics LLC Packaged SoftwareTechnology Services Quest Analytics LLC develops platform for healthcare network analysis and reporting solutions. Its services include medicare advantage, data management, impact analysis, market readiness, network design, and custom reporting. The company was founded by David H. Hill and John P. Weis and is headquartered in Appleton, WI. | 4 Jahre |
| Ralph Snyderman | M | 84 |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | - |
| Charles Boorady | M | - |
Quest Analytics LLC
Quest Analytics LLC Packaged SoftwareTechnology Services Quest Analytics LLC develops platform for healthcare network analysis and reporting solutions. Its services include medicare advantage, data management, impact analysis, market readiness, network design, and custom reporting. The company was founded by David H. Hill and John P. Weis and is headquartered in Appleton, WI. | 6 Jahre |
| Jeffrey Ansell | M | - |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | 7 Jahre |
| Brian O'Connor | M | 48 |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | 24 Jahre |
| Frank Ingari | M | - |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | - |
| John Stephens | M | - |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | - |
| Christopher A. Durbin | M | 58 |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | 17 Jahre |
| Steven L. Levin | M | - |
Quest Analytics LLC
Quest Analytics LLC Packaged SoftwareTechnology Services Quest Analytics LLC develops platform for healthcare network analysis and reporting solutions. Its services include medicare advantage, data management, impact analysis, market readiness, network design, and custom reporting. The company was founded by David H. Hill and John P. Weis and is headquartered in Appleton, WI. | 4 Jahre |
| Nikhil J. Bhat | M | - |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | 10 Jahre |
| Bob Guilbert | M | - |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | - |
| Pedro Paulo Guimaraes | M | - |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | 4 Jahre |
| Elizabeth Bierbower | F | 65 |
Quest Analytics LLC
Quest Analytics LLC Packaged SoftwareTechnology Services Quest Analytics LLC develops platform for healthcare network analysis and reporting solutions. Its services include medicare advantage, data management, impact analysis, market readiness, network design, and custom reporting. The company was founded by David H. Hill and John P. Weis and is headquartered in Appleton, WI. | 4 Jahre |
| Richard Barasch | M | 70 |
Quest Analytics LLC
Quest Analytics LLC Packaged SoftwareTechnology Services Quest Analytics LLC develops platform for healthcare network analysis and reporting solutions. Its services include medicare advantage, data management, impact analysis, market readiness, network design, and custom reporting. The company was founded by David H. Hill and John P. Weis and is headquartered in Appleton, WI. | - |
| Wayne Callahan | M | - |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | - |
| Bill Lewis | M | - |
Quest Analytics LLC
Quest Analytics LLC Packaged SoftwareTechnology Services Quest Analytics LLC develops platform for healthcare network analysis and reporting solutions. Its services include medicare advantage, data management, impact analysis, market readiness, network design, and custom reporting. The company was founded by David H. Hill and John P. Weis and is headquartered in Appleton, WI. | 4 Jahre |
| Nishant Nayar | M | - |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | 7 Jahre |
| Lorraine Ranahan | F | - |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | - |
Beziehungs-Chart
Beziehungen zu mehreren Unternehmen
Ehemalige Beziehungen
| Name | Geschlecht | Alter | Unternehmensverbindungen | Zusammenarbeit |
|---|---|---|---|---|
| Thomas Ross | M | 73 |
The University of North Carolina at Chapel Hill
| - |
| Adam Kelleher | M | - |
The University of North Carolina at Chapel Hill
| 4 Jahre |
| Ariana Scotti | F | - |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | 3 Jahre |
| Neil Merchant | M | - |
VCP I Inc
VCP I Inc Investment ManagersFinance VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York. | 5 Jahre |
| Andrew Graves | M | - |
The University of North Carolina at Chapel Hill
| 2 Jahre |
| Jacob Buchanan | M | - |
The University of North Carolina at Chapel Hill
| 4 Jahre |
| Michael Smith | M | - |
The University of North Carolina at Chapel Hill
| 4 Jahre |
| Steven Demeraski | M | - |
The University of North Carolina at Chapel Hill
| 4 Jahre |
| Michael T Thaden | M | - |
The University of North Carolina at Chapel Hill
| 5 Jahre |
| Abigail Kinnaman | F | - |
The University of North Carolina at Chapel Hill
| 4 Jahre |
| Bin Zi Shu | M | - |
The University of North Carolina at Chapel Hill
| 1 Jahre |
| Rachel Nicole Bilskie | F | - |
The University of North Carolina at Chapel Hill
| 4 Jahre |
| Ethan Peikes | M | - |
The University of North Carolina at Chapel Hill
| 4 Jahre |
| William Stelpflug | M | - |
The University of North Carolina at Chapel Hill
| 4 Jahre |
| Mallory Sanborn | F | - |
The University of North Carolina at Chapel Hill
| 4 Jahre |
| Walter Yarbrough | M | - |
The University of North Carolina at Chapel Hill
| 4 Jahre |
| Justin Hinshaw | M | - |
The University of North Carolina at Chapel Hill
| 4 Jahre |
| Peyton Bohnsack | M | - |
The University of North Carolina at Chapel Hill
| 5 Jahre |
| Josephine Wong | F | - |
The University of North Carolina at Chapel Hill
| 4 Jahre |
| Alex Blair | M | - |
The University of North Carolina at Chapel Hill
| 4 Jahre |
| Angela Schmith | F | - |
The University of North Carolina at Chapel Hill
| 4 Jahre |
| Kevin McGowan | M | - |
The University of North Carolina at Chapel Hill
| 4 Jahre |
| Noel Sinozich | M | - |
The University of North Carolina at Chapel Hill
| 3 Jahre |
| Hunter Hammond | M | - |
The University of North Carolina at Chapel Hill
| 4 Jahre |
| Trey M. Lambert | M | - |
The University of North Carolina at Chapel Hill
| 3 Jahre |
| Kevin S Overby | M | - |
The University of North Carolina at Chapel Hill
| 4 Jahre |
| Jon Hendrickson | M | - |
The University of North Carolina at Chapel Hill
| 2 Jahre |
| Ying Hua | F | - |
The University of North Carolina at Chapel Hill
| 4 Jahre |
| Matt R. Maloney | M | - |
The University of North Carolina at Chapel Hill
| 3 Jahre |
| Natalee Jarrett | F | - |
The University of North Carolina at Chapel Hill
| 4 Jahre |
| Shontel Jung | F | - |
The University of North Carolina at Chapel Hill
| 6 Jahre |
| Derek Aherne | M | - |
The University of North Carolina at Chapel Hill
| 2 Jahre |
| Jarrett Wood | M | - |
The University of North Carolina at Chapel Hill
| 4 Jahre |
| Brad Pence | M | - |
The University of North Carolina at Chapel Hill
| 4 Jahre |
| Stephanie Nieman | F | - |
The University of North Carolina at Chapel Hill
| 2 Jahre |
| Mikhail Belikov | M | - |
The University of North Carolina at Chapel Hill
| 4 Jahre |
| Mario Castro | M | - |
The University of North Carolina at Chapel Hill
| 2 Jahre |
| Julian Forero | M | - |
The University of North Carolina at Chapel Hill
| 4 Jahre |
| Stephanie Marie Michael | F | - |
The University of North Carolina at Chapel Hill
| 4 Jahre |
| David Su | M | - |
The University of North Carolina at Chapel Hill
| 3 Jahre |
| James Stafford | M | - |
The University of North Carolina at Chapel Hill
| 4 Jahre |
| Lukas Davaz | M | - |
The University of North Carolina at Chapel Hill
| 4 Jahre |
| Michael Richmond Sedacca | M | - |
The University of North Carolina at Chapel Hill
| 4 Jahre |
| Veronica Clark | F | - |
The University of North Carolina at Chapel Hill
| 4 Jahre |
| Nicholas R Procaccini | M | - |
The University of North Carolina at Chapel Hill
| 3 Jahre |
| Stoney Jack | M | - |
The University of North Carolina at Chapel Hill
| 2 Jahre |
Statistik
| Land | Beziehungen | % des Gesamten |
|---|---|---|
| Vereinigte Staaten | 99 | 100,00% |
Alter der Beziehungen
Aktive
Vergangene
Herr
Frau
Aufsichtsräte
Führungskräfte
Ursprung der Beziehungen
- Börse
- Insiders
- R Wilson Orr
- Persönliches Netzwerk