Professional Sports Authenticator (PSA) is the largest and most trusted trading card, ticket, and original photograph authentication and grading company in the world.

PSA authenticates a vast array of signatures, ranging from sports, history, and entertainment.

Professional Coin Grading Service (PCGS) represents the industry standard in coin and banknote authentication and grading.

WATA is the expert in video game grading enabling collectors to collect all types of video games with confidence.