Rhode Island's Leading Commercial Highway/Heavy, Site, Concrete and Asphalt Construction Company. As the largest provider of construction services within the State of Rhode Island, Cardi Corporation strives to establish longstanding client relationships and pursue high profile projects.The Cardi Companies have reached a leading regional position and a prominent rank among the Northeast's largest construction firms. We are proud of our long history of providing quality construction services and materials since 1900. Through the modernization of our capital equipment and growth of new business, Cardi has remained an industry leader. Headquartered in Warwick, Rhode Island , the companies provide a variety of construction, materials processing and construction-related services.