|Tier 1 - Mexico|
|Chevez Ruiz Zamarripa|
|Tier 2 - Mexico|
|Basham, Ringe y Correa|
|Creel, García-Cuéllar, Aiza y Enriquez|
|Muñoz Manzo y Ocampo|
|Ritch, Mueller, Heather y Nicolau, SC|
|Turanzas, Bravo & Ambrosi|
|Tier 3 - Mexico|
|Calderón González y Carvajal|
|DLA Piper Gallastegui y Lozano|
|Mijares, Angoitia, Cortés y Fuentes, Taxand Mexico|
|Tier 4 - Mexico|
|Escalante y Asociados|
|Von Wobeser y Sierra|
|White & Case|
Ritch, Mueller, Heather y Nicolau, SC is a respected firm in the Mexican market. Its tax group comprises two partners and 11 other professionals, including practice lead Oscar A. López Velarde Pérez, who joined the firm in January 2017.
New members of the team also include Santiago Llano, Santiago Diaz Rivera, Juan Jose Paullada, Alberto Anguiano and Diego Hernández.
This year, the firm advised BHP Billiton in the first-ever farm out process in the oil and gas industry in Mexico.
Members of Ritch, Mueller, Heather y Nicolau, SC hold various a leadership role in International Fiscal Association, Mexican Bar and Mexico's CPA association.