The need for repair and strengthening of concrete structures has increased considerably over the last decade. A number of methods for repair and/or strengthening of concrete structures have been used over the years, but very recently the use of carbon fiber reinforced polymer (CFRP) plate bonding has gained acceptance. The technique was originally developed with steel plates being bonded with an epoxy adhesive to a concrete structure, but lately advances have been made in use of more suitable plate materials such as CFRP composites. This paper presents a pilot study of lab tests for concrete beams strengthened with prestressed near surface mounted CFRP laminates. Primary results indicate an increased strengthening effect when the steel reinforcement yielded and an increased cracking load, but the ultimate load is the same as a beam strengthened without prestress. Failure modes were the same with or without prestress, failure in the fiber, but the prestressed beams had smaller deflections at failure.