Verified customer feedback
Card grading service reviews
Real collector experiences
I have compared ISA with other grading companies and have found them to be as professional as any other. They have a quicker turnaround time and charge less to grade cards. I have been pleasantly surprised and happy with the level of service and quality of the workmanship. Try ISA, you will not be disappointed.
Never, and I mean never have I had a better experience with a card grading firm. You are a class operation. Five stars all the way. Grading was spot on and shipping was faster than a speeding bullet. You've got my business. Keep up the good work.
Having conducted hundreds of deals with ISA's founder over the last decade, I'm confident ISA has the hobby knowledge and business wherewithal to meet customer demands and deliver real satisfaction.
Viable competition keeps all of us working at our best to serve our customers, so the addition of International Sports Authentication should be beneficial to the hobby.
ISA gives the card industry a professional and accurate alternative to the existing graded card market. It is comforting to know that conscientious collectors now have a real choice.
I was very pleased across the board. Great service, a solid and sturdy holder, and fair grades. I will be submitting cards to ISA to be graded on an ongoing basis.
