(If some one has better option/advise then he can share with us. Recently we got steel trusses from a Toronto based group called "SteelTruss" for our Canada office, but this is just for those who belong to Canada or have some interests there)Without knowing the design of the house and roofs and requirements and needs, it is not good to recommend someone a source. Because all the companies of trusses do not work on the same functions. Few work for industrial sectors and few fulfill the domestic needs. Even the variation comes in material aspect as well. Few deals with steel, few with solid iron(usually for industry) and few companies deal in wood plus steel trusses. So please explain your need in complete detail.