Using the streamlined procurement procedures in FAR Subpart 8.4 Federal Supply Schedules, GSA Multiple Award Schedule offers federal agencies access to more than 3,500 experienced professional services related contractors who provide a range of commercial professional services at discounted and competitive prices. The Professional Services Category offers federal, state and local governments innovative solutions to their professional service needs. Quanterion has applied for applied for 16 different technical areas of work, called Special Item Numbers (SINS).