Kostas Kastanis

Upstream Telecommunications & Software Systems SA operates a commerce platform that engages in the provision of mobile marketing services for mobile operators, M-commerce, developers, service providers, and publishers. It offers insights, and mobile solutions. The firm also offers direct marketing and mobile customer billing services. The company was founded by Alex Vratskides and Marco Veremis in 2001 and is headquartered in Gerakas, Greece.

Upstream Telecommunications & Software Systems SA operates a commerce platform that engages in the provision of mobile marketing services for mobile operators, M-commerce, developers, service providers, and publishers. It offers insights, and mobile solutions. The firm also offers direct marketing and mobile customer billing services. The company was founded by Alex Vratskides and Marco Veremis in 2001 and is headquartered in Gerakas, Greece.

Upstream Telecommunications & Software Systems SA operates a commerce platform that engages in the provision of mobile marketing services for mobile operators, M-commerce, developers, service providers, and publishers. It offers insights, and mobile solutions. The firm also offers direct marketing and mobile customer billing services. The company was founded by Alex Vratskides and Marco Veremis in 2001 and is headquartered in Gerakas, Greece.

Upstream Telecommunications & Software Systems SA operates a commerce platform that engages in the provision of mobile marketing services for mobile operators, M-commerce, developers, service providers, and publishers. It offers insights, and mobile solutions. The firm also offers direct marketing and mobile customer billing services. The company was founded by Alex Vratskides and Marco Veremis in 2001 and is headquartered in Gerakas, Greece.

Upstream Telecommunications & Software Systems SA operates a commerce platform that engages in the provision of mobile marketing services for mobile operators, M-commerce, developers, service providers, and publishers. It offers insights, and mobile solutions. The firm also offers direct marketing and mobile customer billing services. The company was founded by Alex Vratskides and Marco Veremis in 2001 and is headquartered in Gerakas, Greece.

Upstream Telecommunications & Software Systems SA operates a commerce platform that engages in the provision of mobile marketing services for mobile operators, M-commerce, developers, service providers, and publishers. It offers insights, and mobile solutions. The firm also offers direct marketing and mobile customer billing services. The company was founded by Alex Vratskides and Marco Veremis in 2001 and is headquartered in Gerakas, Greece.

Upstream Telecommunications & Software Systems SA operates a commerce platform that engages in the provision of mobile marketing services for mobile operators, M-commerce, developers, service providers, and publishers. It offers insights, and mobile solutions. The firm also offers direct marketing and mobile customer billing services. The company was founded by Alex Vratskides and Marco Veremis in 2001 and is headquartered in Gerakas, Greece.

Upstream Telecommunications & Software Systems SA operates a commerce platform that engages in the provision of mobile marketing services for mobile operators, M-commerce, developers, service providers, and publishers. It offers insights, and mobile solutions. The firm also offers direct marketing and mobile customer billing services. The company was founded by Alex Vratskides and Marco Veremis in 2001 and is headquartered in Gerakas, Greece.