You can find this list of Greeter programmes members of GGN on the following website

Core values of GGN members

The Global Greeter Network is an informal association of Greeter programs around the world. They share the same core values :
• Greeters are volunteers, a friendly face for those visiting a city/destination.
• Greeters welcome individuals and may serve small groups of up to six people.
• Meeting a Greeter is free of charge.
• Visitors are welcomed without regard to race, color, creed, gender, age, sexual orientation, marital status or disability.
• Greeter programs support sustainable tourism. Programs respects natural and man-made environments, it brings both cultural and economical enrichment to the local communities. Programs aim for a lasting positive image of each destination.
• Greeter programs create a mutually enriching opportunity for cultural exchange, create links between ordinary people in creating a better world.