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.

1996

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

Partners and Management

Mario OllerLegal Partner and Ligitation

Mario is a founding partner of the firm and CEO of OBN&. As a lawyer specialising in Civil, Commercial and Real Estate Law, his activity is focused on civil and commercial litigation, as well as advising companies and individuals on all types of real estate transactions and/or restructuring.

Samuel L.NavarroTax Partner-Corporate and Global Services

Samuel is a founding partner and Chief Operating Officer of OBN. He is a lawyer specialized in Tax Law, Tax Inspections and Criminal and Tax Compliance.

Pilar D'AmbrosioLabour Partner

Pilar is a labour lawyer and partner in charge of the Labour Department.

Vanessa RieraGeneral Manager

Vanessa is the General Manager of OBN& with 15 years of experience. She is a lawyer specializing in labour relations and labour law advice.

Business Area

José María ArgüelloAccount Director

José María is the Head of the Accounting Department and has 40 years of experience as a tax and accounting advisor.

Guillermo AlonsoTax Accounting Manager

Guillermo has a degree in Business Sciences. He has extensive experience in tax-accounting consultancy, both for companies and self-employed professionals.

Estela BorrellLabour Manager

Estel is Head of the Labour and Employment Department and has more than 20 years of experience in advising companies. She is also a specialist in Labour Law.

Esther FontanetTax Accounting Manager

Esther is part of the Tax Department and has over 25 years of experience. She advises individuals and legal entities on their fiscal and tax obligations.

Meritxell MontManager of Global Services & Junior Corporate Law

Meritxell has a Law degree and a Master’s degree in International Law, Foreign Trade and International Relations.

Joan SalvóLabour Manager

Joan is responsible for the Labour Department and has more than 15 years of experience as a labour consultant.

Magdalena VidueiraLabour Manager

Magdalena is responsible for the Labour Department and has more than 30 years of experience advising in the labour field.

Esperanza VizueteLabour Manager

Esperanza is Head of the Labour Department and has more than 20 years of experience advising companies on labour issues.

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Max SmithManager of the Global Services Accounting Department

Max has a degree in Business Administration and 3 years of experience in corporate finance and accounting. He is part of the international department of OBN&

Asun BusquetsSenior Accounting

Asun is part of the Accounting Department and has extensive experience in advising both companies and freelancers.

Mónica CastroSenior Labour

Monica has extensive experience advising both companies and freelancers in the daily labour management of their business.

María LeónSenior Tax Accounting

María has over 30 years of experience experience in tax and accounting consultancy, both for companies and individuals.

Diego O.CastilloSenior Tax Accounting

Graduate in Business Studies, Diego has a career of over 15 years as a tax advisor, both for companies and the self-employed.

Yolanda PescadorSenior Tax Accounting