Costain West Africa PLC is a Nigeria-based company engaged in the development and deployment of business solutions and technologies to sustain market share in the West African region. The Company operates in five business segments: the Civil Engineering segment is engaged in building a range of infrastructural projects, such as roads, bridges, dams, railways and airports; the Homes segment is active in the home construction sector; the Furniture and Joinery segment, which produces furniture and joinery; the Oil and Gas construction segment provides engineering, construction, installation to oil and gas field developments, and Rail construction. In addition, the Company also offers feasibility studies, turnkey and fast track solutions, and maintenance of buildings.
By 2007, Shoreline Energy International Limited, a closely held firm with Nigerian interest, has acquired controlling interests of Costain Group Plc UK in Costain West Africa Plc., making it the new owner of the construction firm.