Grading Eleven Authentication (GEA) is a next-generation card grading company founded in Hong Kong, dedicated to elevating the collector experience through precision, technology, and modern design.

Our grading framework combines advanced authentication methods with an exclusive innovative slab architecture—integrating NFC technology, cryptographic verification, and premium materials for long-term durability. We are committed to delivering reliable, transparent, and globally trusted grading service.

Beyond technical excellence, GEA celebrates the culture of collecting. Through artist collaborations, community partnerships, and design-driven slab concepts, we aim to advance the grading landscape — transforming it into a holistic, elevated experience for collectors everywhere.

Grading 11

Cammi Sum

This department drives strategic initiatives and oversees marketing activities to enhance brand presence and achieve business goals.

Grading 11

Org chart

Teams

Marketing Leadership

Offices

Grading 11

Org chart

Teams

Marketing Leadership

Offices

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