About Us

We avoid the classics and focus on a close relationship, flexibility and transparency with our customers

This is the secret to providing an honest, transparent and professional service. The values of the firm are reflected in our team: vocation, passion, knowledge and integrity.

A brief history

Juan Bosch, a tax advisor of renowned experience, is the founder of “Bosch Asesores, SL”, a company dedicated to providing tax, labour and accounting advisory services.


Samuel Lorente and Mario Oller join the firm and with them, “Oller Bosch Navarro, Abogados y Asesores Tributarios, SL” is born along with the new corporate image.

2016 – 2017

A period of remarkable growth begins. The team grows from 4 to 12 people in less than 2 years. Obn Empresas” is born and the office turns to digitalization.

2018 – 2019

Our team continues to grow with the integration of “Gesem”. We became a team of more than 50 professionals and moved to new offices in the center of Barcelona.

2019 – 2020