Melis & Du Plessis Consulting Engineers (Pty) Limited provides specialist consultancy services in the fields of Geotechnical Engineering and Engineering Geology with particular emphasis on dams, underground construction, slope stabilization and rockfall mitigation. Melis & Du Plessis provides consulting services to a wide range of clients including local and national government bodies, large civil engineering contracting companies, insurance companies, developers, municipalities, and to other consulting civil engineers a specialist advisers.