António José Santos Silva Casanova

Shilling Capital Partners SA (Shilling Capital) is an Independent venture capital firm founded in 2010 by António José Santos Silva Casanova, João Peres Coelho Borges and Diogo António Rodrigues da Silveira. The firm is headquartered in Lisbon, Portugal.

Optimus Telecomunicaçöes SA provides mobile telecommunications services. It is a Portuguese GSM/UMTS mobile operator, which also provides information services, GPRS, roaming, internet access, voice mail, telemovies, credit and post-sales services. The company handles domestic and international long-distance phone calls. Optimus was established on 15th September, 1998 and is headquartered in Senhora da Hora, Portugal

Sonae Sierra SGPS SA operates an international property company, which engages in serving the needs of retail real estate investors. It operates through the following segments: Investment Management, Developments, Services, and Sonae Sierra Brazil. The firm provides architecture and engineering, property management, investment management and sustainability services. The company was founded in February 1989 and is headquartered in Maia, Portugal.