​S & B Infrastructure, Ltd. (S & B) has been in existence since 1994 as part of S & B Holdings, Ltd., (one of the largest privately-owned engineering firms in the State of Texas). S & B provides planning, multi-discipline engineering design, and construction phase services in the following market sectors: transportation, federal, public works, pipeline  and facilities.  We provide services to public and private sector clients.  We aspire to be the leader in providing quality professional design services and innovative, cost-effective solutions to meet our client’s expectations. We provide an ethical environment that empowers our employees to grow and contribute to the quality of life of the communities we serve.