HC2 Holdings Inc operates as a diversified holding company engaged in seeking opportunities to acquire and grow businesses that can generate long-term sustainable free cash flow and attractive returns in order to maximize value for all stakeholders. It has eight reportable segments; Construction, Marine Services, Energy, Telecommunications, Insurance, Life Sciences, Broadcasting, and Other. It derives a majority of the revenue from the Telecommunications segment which comprises PTGi International Carrier Services, which operates an extensive network of direct routes and offers premium voice communication services for carrying a mix of business, residential and carrier long-distance traffic, data and transit traffic.HC2 Holdings Inc is a diversified holding company which engages in construction, marine services, insurance, telecommunications, energy, life sciences, and other businesses.