Which tequila brands are verified additive-free?

As of January 2020, the below distilleries, some of which produce multiple tequila brands as designated by their NOM assignment, have been credited as verified additive-free. Patrón is the world's number one super-premium tequila brand to receive the verification.

• Patrón Tequila (NOM 1492)
• Tequila Fortaleza (NOM 1493) [2 brands]
• El Pandillo (G4, Terralta, etc.) (NOM 1579) [6 brands]
• Vivanco (NOM 1414) [7 brands]
• Cascahuín (NOM 1123) [4 brands]
• Tequileña (NOM 1146) [12 brands]
• Arette (NOM 1109) [1 brand]
• El Tequileño (NOM 1108) [1 brand]
• Suave (NOM 1522) [1 brand]