Construction companies include companies that build residential buildings / complexes, commercial buildings / complexes, Roads, Bridges, etc. For these companies besides quality, environments and health and safety also plays a major roles within their business context. Construction Companies may select any of the following services ISO 9001 Certification Consulting Service ISO 14001 Certification Consulting Service OHSAS 18001 Certification Consulting Service CMMI for Development CMMI for Acquisition