The SIL Group is a consortium of several independent companies, complementary to each other and often working in collaboration. The SIL Group has over 60 years experience in the Portuguese real estate sector. The SIL Group is the only company in the market sector offering an integrated combination of complementary services. SILCOGE, Real Estate Development. SILFIDUCIA, Real Estate Consultancy and Agency. SILVIP, Real Estate Investment Fund Management Company.