CORRIGAN INTERNATIONAL INFRASTRUCTURE CONSULTANTS (CllCl are International Consulting Engineers Committed to Core Values. Design of Excellence Global Development and Sustainability. A Leading international engineering company which provides consultancy services and construction supervision feasibility & construction management risk portfolios in Transportation, Infrastructure, Tunnels, Rail, Metro Roads, Highways, Bridges, Hydropower, Transmission, Capacity Building Environmental & Social Urban Master Planning and within Europe, Asia & Middle East CllC have an established portfolio of more than 27 ive projects spanning 15 countries worth bilions of dollars in total construction value. we have expertise covering every stage of our clients' projects. from pre-construction planning. to complete construction supervision to post construction closeout and commissioning services.