International Seaport Dredging Private Limited International Seaport Dredging Private Limited (ISD) is a full Indian company with international standards. ISD was created in 2004 as a partnership between Larsen & Toubro (L&T) and Dredging International (DI). Major shareholder is nowadays DI but L&T still owns minority shareholding. As such, ISD enjoys strong partnership bagging prestigious projects in the Indian subcontinent to contribute positively to the development of the Nation. With the committed leadership, ISD has emerged as one among the top key reliable marine and dredging contractors in Indian subcontinent with the consistent track record of completing the projects as per schedule without any deviations, thereby winning the trust of the client(s) for future collaboration.