Ashish Gupta
Direktor/Vorstandsmitglied bei PT DELTA DUNIA MAKMUR TBK
Vermögen: 16 Mio $ am 30.04.2024
Aktive Beziehungen
Name | Geschlecht | Alter | Unternehmensverbindungen | Zusammenarbeit |
---|---|---|---|---|
Raymond Zage | M | 54 |
Tiga Acquisition Corp. III
Tiga Acquisition Corp. III Financial ConglomeratesFinance Tiga Acquisition Corp. III operates as a blank check company. The firm was formed for the purpose of effecting a merger, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses. The company was incorporated on February 3, 2021 and is headquartered in Singapore.
Tiga Acquisition Corp. II
Tiga Acquisition Corp. II Financial ConglomeratesFinance Tiga Acquisition Corp. II operates as a blank check company. It was formed for the purpose of effecting a merger, capital stock exchange, asset acquisition, stock purchase, reorganization or similar business combination with one or more businesses. The company was founded by G. Raymond Zage, III and Ashish Gupta on January 12, 2021 and is headquartered in Singapore.
Tiga Investments Pte Ltd.
Tiga Investments Pte Ltd. Financial ConglomeratesFinance Tiga Investments Pte Ltd. is based in Singapore, Singapore. Tiga Investments is a Singaporean Singapore-based company that specializes in making long-term investments in unique businesses with strong management teams. The company leverages their extensive industry expertise and strong relationships to help businesses reach their full potential. The company was founded by George Raymond Zage and is led by Ashish Gupta and George Raymond Zage. Tiga is also the sponsor of Tiga Acquisition Corp, a special purpose acquisition company listed on the NYSE.
Tiga Sponsor III LLC
Tiga Sponsor V LLC
Tiga Sponsor II LLC
Tiga Sponsor Iv LLC
Tiga Acquisition Corp. Iv
Tiga Acquisition Corp. Iv Marine ShippingTransportation Tiga Acquisition Corp. IV provides deep sea freight transportation services. The private company is based in Singapore, Singapore. The CEO of the Singaporean company is George Raymond Zage.
Tiga Acquisition Corp. V
| 6 Jahre |
Peter Chambers | M | 66 |
Tiga Acquisition Corp. III
Tiga Acquisition Corp. III Financial ConglomeratesFinance Tiga Acquisition Corp. III operates as a blank check company. The firm was formed for the purpose of effecting a merger, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses. The company was incorporated on February 3, 2021 and is headquartered in Singapore.
Tiga Acquisition Corp. II
Tiga Acquisition Corp. II Financial ConglomeratesFinance Tiga Acquisition Corp. II operates as a blank check company. It was formed for the purpose of effecting a merger, capital stock exchange, asset acquisition, stock purchase, reorganization or similar business combination with one or more businesses. The company was founded by G. Raymond Zage, III and Ashish Gupta on January 12, 2021 and is headquartered in Singapore.
PT Agincourt Resources
PT Agincourt Resources Precious MetalsNon-Energy Minerals PT Agincourt Resources engages in the gold and silver mining exploration services. The company operates its mining services through Martabe Gold Mine project, which is located in North Sumatra, Indonesia. Agincourt Resources was founded in 1997 and is headquartered in Jakarta, Indonesia.
Tiga Acquisition Corp. Iv
Tiga Acquisition Corp. Iv Marine ShippingTransportation Tiga Acquisition Corp. IV provides deep sea freight transportation services. The private company is based in Singapore, Singapore. The CEO of the Singaporean company is George Raymond Zage.
Tiga Acquisition Corp. V
PT Bukit Makmur Mandiri Utama
PT Bukit Makmur Mandiri Utama CoalEnergy Minerals PT Bukit Makmur Mandiri Utama operates as a coal mining contractor. The firm is engaged in the provision of coal mining services. The company was founded by Johan Lensa in 1998 and is located in Jakarta, Indonesia. | 3 Jahre |
Carman Wong | F | 51 |
Tiga Acquisition Corp. II
Tiga Acquisition Corp. II Financial ConglomeratesFinance Tiga Acquisition Corp. II operates as a blank check company. It was formed for the purpose of effecting a merger, capital stock exchange, asset acquisition, stock purchase, reorganization or similar business combination with one or more businesses. The company was founded by G. Raymond Zage, III and Ashish Gupta on January 12, 2021 and is headquartered in Singapore.
Tiga Acquisition Corp. III
Tiga Acquisition Corp. III Financial ConglomeratesFinance Tiga Acquisition Corp. III operates as a blank check company. The firm was formed for the purpose of effecting a merger, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses. The company was incorporated on February 3, 2021 and is headquartered in Singapore.
Tiga Acquisition Corp. Iv
Tiga Acquisition Corp. Iv Marine ShippingTransportation Tiga Acquisition Corp. IV provides deep sea freight transportation services. The private company is based in Singapore, Singapore. The CEO of the Singaporean company is George Raymond Zage.
Tiga Acquisition Corp. V
| 3 Jahre |
Diana Luo | F | 46 |
Tiga Acquisition Corp. II
Tiga Acquisition Corp. II Financial ConglomeratesFinance Tiga Acquisition Corp. II operates as a blank check company. It was formed for the purpose of effecting a merger, capital stock exchange, asset acquisition, stock purchase, reorganization or similar business combination with one or more businesses. The company was founded by G. Raymond Zage, III and Ashish Gupta on January 12, 2021 and is headquartered in Singapore.
Tiga Acquisition Corp. III
Tiga Acquisition Corp. III Financial ConglomeratesFinance Tiga Acquisition Corp. III operates as a blank check company. The firm was formed for the purpose of effecting a merger, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses. The company was incorporated on February 3, 2021 and is headquartered in Singapore.
Farallon Capital Asia Pte Ltd.
Farallon Capital Asia Pte Ltd. Investment ManagersFinance Farallon Capital Asia Pte Ltd. (Farallon Asia) is an alternative investment management firm headquartered in Singapore. The firm was formerly known as Noonday Asset Management (Asia) Pte Ltd. They are a subsidiary of Farallon Capital Management LLC, which is owned by Farallon Capital Management LP in the US. Farallon Asia provides administrative services and discretionary investment management services to private investment funds, the securities of which are offered to investors on a private placement basis, and to managed accounts.
Tiga Acquisition Corp. Iv
Tiga Acquisition Corp. Iv Marine ShippingTransportation Tiga Acquisition Corp. IV provides deep sea freight transportation services. The private company is based in Singapore, Singapore. The CEO of the Singaporean company is George Raymond Zage.
Tiga Acquisition Corp. V
| 13 Jahre |
Una Lindasari | F | 58 |
PT Bukit Makmur Mandiri Utama
PT Bukit Makmur Mandiri Utama CoalEnergy Minerals PT Bukit Makmur Mandiri Utama operates as a coal mining contractor. The firm is engaged in the provision of coal mining services. The company was founded by Johan Lensa in 1998 and is located in Jakarta, Indonesia. | 10 Jahre |
Ronald Sutardja | M | 57 |
PT Bukit Makmur Mandiri Utama
PT Bukit Makmur Mandiri Utama CoalEnergy Minerals PT Bukit Makmur Mandiri Utama operates as a coal mining contractor. The firm is engaged in the provision of coal mining services. The company was founded by Johan Lensa in 1998 and is located in Jakarta, Indonesia. | 12 Jahre |
Hasan Widjaya | M | - | - | |
Olga Oktavia Patuwo | F | - | 8 Jahre | |
Indra Dammen Kanoena | M | 51 |
PT Bukit Makmur Mandiri Utama
PT Bukit Makmur Mandiri Utama CoalEnergy Minerals PT Bukit Makmur Mandiri Utama operates as a coal mining contractor. The firm is engaged in the provision of coal mining services. The company was founded by Johan Lensa in 1998 and is located in Jakarta, Indonesia. | 11 Jahre |
Ed Cooney | M | - |
PT Agincourt Resources
PT Agincourt Resources Precious MetalsNon-Energy Minerals PT Agincourt Resources engages in the gold and silver mining exploration services. The company operates its mining services through Martabe Gold Mine project, which is located in North Sumatra, Indonesia. Agincourt Resources was founded in 1997 and is headquartered in Jakarta, Indonesia. | 11 Jahre |
Hamid Awaludin | M | 61 | 13 Jahre | |
Muliady Sutio | M | - |
PT Agincourt Resources
PT Agincourt Resources Precious MetalsNon-Energy Minerals PT Agincourt Resources engages in the gold and silver mining exploration services. The company operates its mining services through Martabe Gold Mine project, which is located in North Sumatra, Indonesia. Agincourt Resources was founded in 1997 and is headquartered in Jakarta, Indonesia. | - |
Johan Lensa | M | - |
PT Bukit Makmur Mandiri Utama
PT Bukit Makmur Mandiri Utama CoalEnergy Minerals PT Bukit Makmur Mandiri Utama operates as a coal mining contractor. The firm is engaged in the provision of coal mining services. The company was founded by Johan Lensa in 1998 and is located in Jakarta, Indonesia. | 26 Jahre |
Mino Encarnacion | M | - |
Farallon Capital Asia Pte Ltd.
Farallon Capital Asia Pte Ltd. Investment ManagersFinance Farallon Capital Asia Pte Ltd. (Farallon Asia) is an alternative investment management firm headquartered in Singapore. The firm was formerly known as Noonday Asset Management (Asia) Pte Ltd. They are a subsidiary of Farallon Capital Management LLC, which is owned by Farallon Capital Management LP in the US. Farallon Asia provides administrative services and discretionary investment management services to private investment funds, the securities of which are offered to investors on a private placement basis, and to managed accounts.
PT Agincourt Resources
PT Agincourt Resources Precious MetalsNon-Energy Minerals PT Agincourt Resources engages in the gold and silver mining exploration services. The company operates its mining services through Martabe Gold Mine project, which is located in North Sumatra, Indonesia. Agincourt Resources was founded in 1997 and is headquartered in Jakarta, Indonesia. | 8 Jahre |
Nurdin Zainal | M | 75 | 15 Jahre | |
Noke Kiroyan | M | 78 |
PT Agincourt Resources
PT Agincourt Resources Precious MetalsNon-Energy Minerals PT Agincourt Resources engages in the gold and silver mining exploration services. The company operates its mining services through Martabe Gold Mine project, which is located in North Sumatra, Indonesia. Agincourt Resources was founded in 1997 and is headquartered in Jakarta, Indonesia. | 12 Jahre |
Simon Harle | M | - |
PT Bukit Makmur Mandiri Utama
PT Bukit Makmur Mandiri Utama CoalEnergy Minerals PT Bukit Makmur Mandiri Utama operates as a coal mining contractor. The firm is engaged in the provision of coal mining services. The company was founded by Johan Lensa in 1998 and is located in Jakarta, Indonesia. | 13 Jahre |
Iwan Fuad Salim | M | - | - | |
Tony Manini | M | 61 |
PT Agincourt Resources
PT Agincourt Resources Precious MetalsNon-Energy Minerals PT Agincourt Resources engages in the gold and silver mining exploration services. The company operates its mining services through Martabe Gold Mine project, which is located in North Sumatra, Indonesia. Agincourt Resources was founded in 1997 and is headquartered in Jakarta, Indonesia. | 8 Jahre |
Samuel Sinaga | M | - | - | |
Putut Eko Bayuseno | M | - |
PT Agincourt Resources
PT Agincourt Resources Precious MetalsNon-Energy Minerals PT Agincourt Resources engages in the gold and silver mining exploration services. The company operates its mining services through Martabe Gold Mine project, which is located in North Sumatra, Indonesia. Agincourt Resources was founded in 1997 and is headquartered in Jakarta, Indonesia. | 3 Jahre |
Frans Kesuma | M | 62 |
PT Agincourt Resources
PT Agincourt Resources Precious MetalsNon-Energy Minerals PT Agincourt Resources engages in the gold and silver mining exploration services. The company operates its mining services through Martabe Gold Mine project, which is located in North Sumatra, Indonesia. Agincourt Resources was founded in 1997 and is headquartered in Jakarta, Indonesia. | - |
Regina Korompis | F | 39 | 6 Jahre | |
Fery Iriyawan | M | 38 | 7 Jahre | |
Ashish Jaiprakash Shastry | M | 48 |
PT Bukit Makmur Mandiri Utama
PT Bukit Makmur Mandiri Utama CoalEnergy Minerals PT Bukit Makmur Mandiri Utama operates as a coal mining contractor. The firm is engaged in the provision of coal mining services. The company was founded by Johan Lensa in 1998 and is located in Jakarta, Indonesia. | 13 Jahre |
Washington Tambunan | M | - |
PT Agincourt Resources
PT Agincourt Resources Precious MetalsNon-Energy Minerals PT Agincourt Resources engages in the gold and silver mining exploration services. The company operates its mining services through Martabe Gold Mine project, which is located in North Sumatra, Indonesia. Agincourt Resources was founded in 1997 and is headquartered in Jakarta, Indonesia. | 12 Jahre |
Ee Boon Le | M | 48 |
LAWL Pte Ltd.
| - |
Anwar Nasution | M | - |
PT Agincourt Resources
PT Agincourt Resources Precious MetalsNon-Energy Minerals PT Agincourt Resources engages in the gold and silver mining exploration services. The company operates its mining services through Martabe Gold Mine project, which is located in North Sumatra, Indonesia. Agincourt Resources was founded in 1997 and is headquartered in Jakarta, Indonesia. | 13 Jahre |
Eddy Porwanto Poo | M | 55 |
PT Bukit Makmur Mandiri Utama
PT Bukit Makmur Mandiri Utama CoalEnergy Minerals PT Bukit Makmur Mandiri Utama operates as a coal mining contractor. The firm is engaged in the provision of coal mining services. The company was founded by Johan Lensa in 1998 and is located in Jakarta, Indonesia. | 10 Jahre |
Darryn McClelland | M | - |
PT Agincourt Resources
PT Agincourt Resources Precious MetalsNon-Energy Minerals PT Agincourt Resources engages in the gold and silver mining exploration services. The company operates its mining services through Martabe Gold Mine project, which is located in North Sumatra, Indonesia. Agincourt Resources was founded in 1997 and is headquartered in Jakarta, Indonesia. | - |
Sorimuda Pulungan | M | 55 |
PT Bukit Makmur Mandiri Utama
PT Bukit Makmur Mandiri Utama CoalEnergy Minerals PT Bukit Makmur Mandiri Utama operates as a coal mining contractor. The firm is engaged in the provision of coal mining services. The company was founded by Johan Lensa in 1998 and is located in Jakarta, Indonesia. | 12 Jahre |
Joseph Peter Hurst | M | 56 |
PT Bukit Makmur Mandiri Utama
PT Bukit Makmur Mandiri Utama CoalEnergy Minerals PT Bukit Makmur Mandiri Utama operates as a coal mining contractor. The firm is engaged in the provision of coal mining services. The company was founded by Johan Lensa in 1998 and is located in Jakarta, Indonesia. | 14 Jahre |
Linda H. D. Siahaan | F | 63 |
PT Agincourt Resources
PT Agincourt Resources Precious MetalsNon-Energy Minerals PT Agincourt Resources engages in the gold and silver mining exploration services. The company operates its mining services through Martabe Gold Mine project, which is located in North Sumatra, Indonesia. Agincourt Resources was founded in 1997 and is headquartered in Jakarta, Indonesia. | 17 Jahre |
Ngee Kuan Teo | M | - |
Farallon Capital Asia Pte Ltd.
Farallon Capital Asia Pte Ltd. Investment ManagersFinance Farallon Capital Asia Pte Ltd. (Farallon Asia) is an alternative investment management firm headquartered in Singapore. The firm was formerly known as Noonday Asset Management (Asia) Pte Ltd. They are a subsidiary of Farallon Capital Management LLC, which is owned by Farallon Capital Management LP in the US. Farallon Asia provides administrative services and discretionary investment management services to private investment funds, the securities of which are offered to investors on a private placement basis, and to managed accounts. | 11 Jahre |
Iwan Hadiantoro | M | 55 |
PT Agincourt Resources
PT Agincourt Resources Precious MetalsNon-Energy Minerals PT Agincourt Resources engages in the gold and silver mining exploration services. The company operates its mining services through Martabe Gold Mine project, which is located in North Sumatra, Indonesia. Agincourt Resources was founded in 1997 and is headquartered in Jakarta, Indonesia. | 6 Jahre |
Jason Chang | M | - |
PT Agincourt Resources
PT Agincourt Resources Precious MetalsNon-Energy Minerals PT Agincourt Resources engages in the gold and silver mining exploration services. The company operates its mining services through Martabe Gold Mine project, which is located in North Sumatra, Indonesia. Agincourt Resources was founded in 1997 and is headquartered in Jakarta, Indonesia. | - |
Andrew S. Hung | M | - |
Farallon Capital Asia Pte Ltd.
Farallon Capital Asia Pte Ltd. Investment ManagersFinance Farallon Capital Asia Pte Ltd. (Farallon Asia) is an alternative investment management firm headquartered in Singapore. The firm was formerly known as Noonday Asset Management (Asia) Pte Ltd. They are a subsidiary of Farallon Capital Management LLC, which is owned by Farallon Capital Management LP in the US. Farallon Asia provides administrative services and discretionary investment management services to private investment funds, the securities of which are offered to investors on a private placement basis, and to managed accounts. | 12 Jahre |
Sebastian Morris | M | - |
Indian Institute of Management Ahmedabad
| 24 Jahre |
Shawn Crispin | M | 56 |
PT Agincourt Resources
PT Agincourt Resources Precious MetalsNon-Energy Minerals PT Agincourt Resources engages in the gold and silver mining exploration services. The company operates its mining services through Martabe Gold Mine project, which is located in North Sumatra, Indonesia. Agincourt Resources was founded in 1997 and is headquartered in Jakarta, Indonesia. | 11 Jahre |
Kurniawati Ciputra | F | - |
PT Bukit Makmur Mandiri Utama
PT Bukit Makmur Mandiri Utama CoalEnergy Minerals PT Bukit Makmur Mandiri Utama operates as a coal mining contractor. The firm is engaged in the provision of coal mining services. The company was founded by Johan Lensa in 1998 and is located in Jakarta, Indonesia. | 16 Jahre |
Beziehungs-Chart
Beziehungen zu mehreren Unternehmen
Ehemalige Beziehungen
Name | Geschlecht | Alter | Unternehmensverbindungen | Zusammenarbeit |
---|---|---|---|---|
Ariani Vidya Sofjan | F | 53 | 13 Jahre | |
Stephanie Limuissa | F | - | 12 Jahre | |
Akhil Mago | M | - |
Indian Institute of Management Ahmedabad
| 2 Jahre |
Smriti Shekhar | F | - |
Shri Ram College of Commerce
| 4 Jahre |
Vikram Agarwal | M | - |
Shri Ram College of Commerce
| 3 Jahre |
Vinod Murali | M | - |
Indian Institute of Management Ahmedabad
| 2 Jahre |
Deepak Kasthwal | M | - |
Indian Institute of Management Ahmedabad
| 2 Jahre |
Vibhor Dhanuka | M | - |
Indian Institute of Management Ahmedabad
| 4 Jahre |
Rudra Dalmia | M | - |
Shri Ram College of Commerce
| 3 Jahre |
Gagan Sawhney | M | 48 |
Indian Institute of Management Ahmedabad
| 2 Jahre |
Nair Ajith | M | - |
Indian Institute of Management Ahmedabad
| 2 Jahre |
Saurabh Gupta | M | - |
Indian Institute of Management Ahmedabad
| 2 Jahre |
Akhilesh Tilotia | M | - |
Indian Institute of Management Ahmedabad
| 2 Jahre |
Rajeev Kalambi | M | - |
Shri Ram College of Commerce
| 3 Jahre |
Hemant Jai | M | - |
Indian Institute of Management Ahmedabad
| 2 Jahre |
Sanjay Gandhi | M | 48 |
Shri Ram College of Commerce
| 1 Jahre |
Chetan Sanghvi | M | - |
Indian Institute of Management Ahmedabad
| 4 Jahre |
Manoj Narayanan | M | - |
Indian Institute of Management Ahmedabad
| 2 Jahre |
Mukul Mohanty | M | - |
Shri Ram College of Commerce
| 3 Jahre |
Gaurav Gairola | M | - |
Indian Institute of Management Ahmedabad
| 2 Jahre |
Neeraj Kumar Aggarwal | M | 49 |
Shri Ram College of Commerce
| 4 Jahre |
Naveen Unni | M | - |
Indian Institute of Management Ahmedabad
| 2 Jahre |
Anirvan Coomer | M | - |
Indian Institute of Management Ahmedabad
| 2 Jahre |
V. Raghunathan | M | 69 |
Indian Institute of Management Ahmedabad
| - |
A J Ajith | M | - |
Indian Institute of Management Ahmedabad
| 2 Jahre |
Gurmeet Kaur | F | - |
Indian Institute of Management Ahmedabad
| 2 Jahre |
Hagianto Kumala | M | 77 | 12 Jahre | |
Prashant Gupta | M | 44 |
Shri Ram College of Commerce
| 4 Jahre |
Abhishek Sud | M | - |
Indian Institute of Management Ahmedabad
| 2 Jahre |
Ruchir Lahoty | M | - |
Indian Institute of Management Ahmedabad
| 2 Jahre |
Prasun Baheti | M | - |
Indian Institute of Management Ahmedabad
| 2 Jahre |
Anshul Pradhan | M | - |
Indian Institute of Management Ahmedabad
| 2 Jahre |
Indiraben Jitendra Parikh | M | 77 |
Indian Institute of Management Ahmedabad
| 3 Jahre |
Nicholas Lenicheck | M | - |
Farallon Capital Asia Pte Ltd.
Farallon Capital Asia Pte Ltd. Investment ManagersFinance Farallon Capital Asia Pte Ltd. (Farallon Asia) is an alternative investment management firm headquartered in Singapore. The firm was formerly known as Noonday Asset Management (Asia) Pte Ltd. They are a subsidiary of Farallon Capital Management LLC, which is owned by Farallon Capital Management LP in the US. Farallon Asia provides administrative services and discretionary investment management services to private investment funds, the securities of which are offered to investors on a private placement basis, and to managed accounts. | - |
Nitin Dahiya | M | - |
Indian Institute of Management Ahmedabad
| 2 Jahre |
Kamal Das | M | - |
Indian Institute of Management Ahmedabad
| 2 Jahre |
Pradip Navin Khandwalla | M | 84 |
Indian Institute of Management Ahmedabad
| 27 Jahre |
Vikas A. Chelluka | M | - |
Indian Institute of Management Ahmedabad
| 2 Jahre |
Anubhav Ladia | M | 47 |
Shri Ram College of Commerce
| 4 Jahre |
Sunata Tjiterosampurno | M | 51 | 11 Jahre | |
Anamica Broetz | F | - |
Shri Ram College of Commerce
| 3 Jahre |
V. T. Bharadwaj | M | - |
Indian Institute of Management Ahmedabad
| 2 Jahre |
Jefferson Chen | M | - |
Farallon Capital Asia Pte Ltd.
Farallon Capital Asia Pte Ltd. Investment ManagersFinance Farallon Capital Asia Pte Ltd. (Farallon Asia) is an alternative investment management firm headquartered in Singapore. The firm was formerly known as Noonday Asset Management (Asia) Pte Ltd. They are a subsidiary of Farallon Capital Management LLC, which is owned by Farallon Capital Management LP in the US. Farallon Asia provides administrative services and discretionary investment management services to private investment funds, the securities of which are offered to investors on a private placement basis, and to managed accounts. | - |
Agarwal Manish | M | - |
Indian Institute of Management Ahmedabad
| 2 Jahre |
Ram Chandra Prasad | M | 75 |
Indian Institute of Management Ahmedabad
| 1 Jahre |
Tarun Matta | M | - |
Indian Institute of Management Ahmedabad
| 1 Jahre |
Utsav Baijal | M | 48 |
Indian Institute of Management Ahmedabad
| 2 Jahre |
Meenakshi Goyal | F | 48 |
Shri Ram College of Commerce
| 4 Jahre |
Kongara Siddhartha | M | - |
Indian Institute of Management Ahmedabad
| 2 Jahre |
Statistik
Land | Beziehungen | % des Gesamten |
---|---|---|
Indien | 44 | 49,44% |
Indonesien | 37 | 41,57% |
Singapur | 10 | 11,24% |
Cayman Islands | 1 | 1,12% |
Alter der Beziehungen
Aktive
Vergangene
Herr
Frau
Aufsichtsräte
Führungskräfte
Ursprung der Beziehungen
- Börse
- Insiders
- Ashish Gupta
- Persönliches Netzwerk