Costain West Africa Plc over the years has played a key role in building many landmark infrastructural projects such as roads, bridges, dams, railways and airports.

The Company has for over 60 years competently executed a wide range of substantial building and civil engineering projects throughout Nigeria for the Federal and State Government, public and private organizations. The Company also manufactures furniture for general sale and joinery to support its contracts.

In recent time, the Company has been awarded and completed projects such as the APM Concession Phase 1, Apapa, Lagos, Tanburawa Water Treatment Plant, Kano, Shell Housing Estates, Abuja & Port-Harcourt, and the Township Stadium Phase 2, Warri. The on-going projects include the Nigeria branch expansion of the Watch Tower Society of Jehovah Witnesses, Igieduma, Edo State, Media Trust Head Office building, Abuja and the Rehabilitation of Railway Track Network Western line.

The Company's activities since the 1970's are noted below to illustrate how much the Company has been involved in developing business and infra-structural aspects in Nigeria. However, the contracts mentioned do not represent a complete list as the list does not include what we refer to as "SmallWorks" that have been carried out during this time.

Between 1970 and 1980, Costain (West Africa) Plc undertook numerous major contracts such as Gusau Water Supply Scheme, Guinness Brewery, Benin, a road from Calabar to the Cameroon Border, Bata Shoe Factory, Lagos, Australian High Commission, Lagos, British High Commission, Lagos, WAPCO Offices, Sagamu, Extensions to Sokoto Water Supply, Mainchi- Daki Takwas Road, Bida Water Supply Extension, Match Factory, Port-Harcourt, Ashaka Cement Works, NECOM House, Lagos, Iwopin Paper Mill and many other projects.

Other major contracts carried out during the early 80's were the Secretariat Building, Port-Harcourt, Maiduguri Hospital, Maiduguri Flour Mills, Effluent Line, Iwopin Township, and Offices and Industrial Buildings for PZ Industries. However, by the mid-1980 the decline in contracts became very evident and it was only the Oyo Water Supply contract that kept the Company reasonably busy. Contracts completed in the late 1980's were Kwara State House, Lagos, Government House, Uyo and the CMB Building, Port-Harcourt.

During the 90's there was a marked decline in construction work available in the country. However, a number of notable contracts were carried out. These included the Chevron Housing Estate, Lagos, Shell Trustees Housing Estate, Abuja, First Bank Training Centre, Lagos, Shell Offices, Warri, Edo State House, Lagos, Government Lodge, Uyo, Extensions to the Mobil Depot, Eket, Renovation of NECOM House, Lagos, Warri Stadium, several office buildings in Abuja, Government buildings in Asaba, and various other works.