management and construction management services throughout the State of Texas. Our dedicated staff provides specialized expertise and intergrated services for the public and private.....:: Welcome to SPI - Home ::.. Schaumburg & Polk, Inc. (SPI) was founded by George J. Schaumburg, P.E. in 1937, and has been providing uninterrupted engineering services since... sector, for both large and small projects. Our projects range from transportation, drainage facilities, water resources, wastewater facilities, to land development, regulatory issues, and surveying. Services | SPI Today | Careers | Contact Us ...