Your partner for Custody
Banco S3 México is a leader in the markets and geographies where it operates, and it is the ideal partner that offers value-added solutions to institutional customers
Reassurance and confidence for your investments
Banco S3 México has an excellent reputation thanks to the local expert teams and flexible technology platforms
Post-trade solutions
Our purpose is to be the best services platform for entities that require post-trade solutions in the geographies where we operate, earning the lasting loyalty of our people, customers, shareholders and communities

A regional provider with presence in Latin America

In México, Santander Group has created a new company which, according to our laws, adopts the shape of an “Institución de Banca Múltiple”. This new company, named Banco S3 México, S.A. Institución de Banca Múltiple, acquired the securities and cash depositing, custody and administration business formerly owned by Banco Santander (México), S.A. and is currently operating the business autonomously and in compliance with all the applicable legal requirements.

Banco S3 Mexico is a banking entity focused on the provision of securities and cash Custody, Settlement and Administration services, as well as the collection of deposits, granting of credit, administration of accounts with the central securities depository and other ancillary services such as forex, securities lending, price recording at the Mexican stock exchange (Bolsa Mexicana de Valores) and settlement in Continuous Linked Settlement (CLS), all of them related to these activities and processed by a third party.

Banco S3 Mexico, which drew on the expertise of Banco Santander México, has its own banking systems and operating teams, an experienced management team and a corporate government fully compliant with the Mexican regulations.

Our purpose

To help people and businesses prosper.

Our aim as a bank

To be the best service platform for entities that require post-trade solutions in the geographies where we operate, earning the lasting loyalty of all Persons: our people, customers, shareholders and communities.

Our how

Everything we do should always be Simple, Personal and Fair.

Our strategic priorities


Seek operational and service excellence of the current platform, through customer focus, efficiency management and risk control.


Grow jointly with our customers by adding innovative services to the current offer and exploring formulas such as co-creation.


Create a digital ecosystem for services, processes and work methodologies with a focus on the customer and user experience.


Strengthen skills to drive personal and organisational transformation through a self-development approach.

State of the art platform allowing flexible solutions

Commitment with

“On the ground” teams with large knowledge and high expertise

Front to back organization: Business management and Operations alignment

Geographical footprint