HC2 Holdings Inc is a diversified holding company that has a portfolio of subsidiaries in a variety of operating segments which include Infrastructure, Life Sciences, Spectrum, Insurance, and Other. Its Infrastructure segment, which generates most of the revenue, provides Industrial Construction, Structural Steel, and Facility Maintenance among other services.HC2 Holdings Inc is a diversified holding company which engages in construction, marine services, insurance, telecommunications, energy, life sciences, and other businesses.