Urban Media Communications, a carrier that serves multiple-tenant office buildings in major markets, has raised $57 million in second-round funding. The financing was led by Tyco Ventures, the investment arm of holding company Tyco International. Tyco Ventures will gain a board seat. The capital will be used to expand in Urban Media's 11 markets. Urban Media also launched UrbanCenter, a portal-like Web site offering Internet-based business services for the company's customers.