Mackintosh Burn Ltd is a civil engineering company primarily based in Kolkata and has played a kwy rolw in shaping up kolkata.Mackintosh Burn Limited, a Company specialized in Civil Construction, Structural Fabrication & Erection started its voyage way back in 1834 under the able guidance of Mr. James Mackintosh. Since then, the Company has experienced various formations in its status and was eventually converted into A Government of West Bengal Enterprise during 2010. The Company spreading its wings in the construction of bridges, viaducts and aqueducts in the year 1975 and has its credit Karalaghat Bridge, Disherghat Bridge, Pandabeswar Bridge, Rellie Bridge, Jamunajore Bridge Bridge, Jangalkanya Setu at Bharasaghat, Saptamukhi Bridge,Dharala Aqueducts, viaducts for approaches for 2nd Hooghly Bridge (vidya sagar Setu), , Maida Fly over, Birati flyover etc. to name a few.Mackintosh Burn Limited has played a significant role in building up the city of Kolkata, as numerous landmark buildings and monuments were constructed by it during the British Rule and thereafter. Some of notable structures in that period include Dakshineswar Temple, Nakhoda Mosque, St Paul's Cathedral, Jain Temple, Victoria House, Statesman House, Stock Exchange Building, Grand Hotel, Royal Calcutta Golf Club, Royal Calcutta Turf Club, Calcutta Swimming Club and many more.