How to Find Your GSA SIN Number for Services or Products

If you have (or are seeking) a GSA contract to sell products or services to the U.S. government, one thing you’ll hear a lot about is a SIN (Special Item Number). Often people ask: What is a GSA SIN number? Or how do I figure out which SIN(s) apply to what I offer? Getting this right is critical — wrong SINs […]