Agotur is the Association of Official Tour Guides in Peru. While unfortunately the Peruvian umbrella association isn't active anymore, you find local Agotur groups in larger cities in Peru from which most are now organized in the National Federation of Tourist Guides (Fenaguiturp)
The largest Agotur groups are:
Additionally, you have Agotur groups in Ica, Junin, La Libertad, Pisco and San Martin.