Welcome to SGC!
SGC is a premier sports card authenticator and grader known for its accuracy and consistency. Founded in 1998 and headquartered in Parsippany, N.J., the company provides independent, third-party appraisal of trading card condition, the single most important factor in determining a card's value.
Each trading card submitted to SGC is examined by three expert graders before being encapsulated in a sealed, tamper-resistant plastic holder. Acid-free, museum-quality black paper is custom-cut to frame the card, and an insert lists the card's year, quality and SGC certification number.
SGC Contact Info
If you have a question, comment, or problem, we would like to hear from you. Please feel free to email any of our staff members listed below.
If you are in need of immediate attention and would like to speak with one of our representatives, you may reach us by telephone at
1-800-SGC-9212. Thank You!
Address & Phone Contact
Sportscard Guaranty LLC
8-E Easy Street, Suite 1
Bound Brook NJ 08805
800-SGC-9212 or 973-984-0018