S & B Engineers and Constructors is an engineering, procurement, and construction company that focuses on natural gas liquids fractionation, refining, petrochemicals and polymers, and export terminals. It also offers in-house engineering and direct-hire construction services. The company develops an automated project information management system, iPIMS, which integrates workflows in the engineering, procurement, and construction project execution lifecycle and provides customers with access to project information. S & B Engineers and Constructors caters to the oil, gas and chemicals, energy transition, power, industrial, transportation, federal, marine, and public works markets.