PCI DSS Service Level Provider

Level 1
MasterCard:
- All third-party providers (TPPs)
- All data storage entities (DSEs) that store, process, or transmit cardholder data for Level 1 and Level 2 merchants

Visa:
- Any VisaNet processor
- All payment gateways

Level 2
MasterCard:
All DSEs that store, process, or transmit cardholder data for Level 3 merchants or

Visa:
Any service provider that stores, processes, or transmits one million more Visa accounts or transactions annually

Level 3
MasterCard:
All other DSEs

Visa:
Any service provider that stores, processes, or transmits less than one million Visa accounts or transactions annually