Client Area


Sima Accountants

About us

Talk to an accountant

Sima Accountants

We are a full-service accounting firm in Rio de Janeiro keen on building results for individuals and business owners

We offer a wide range of solutions in accounting, financial, tax and labor consulting and outsourcing. All provided by a team ready to identify and address your real world needs.

At Sima you have support from more than 45 professionals ready to automate your accounting routine, reduce your tax expenses and advise on essential decisions for your business success.


Oslo Digital is a result focused digital marketing company

Learn more

Fábrica de Startups Brasil helps people become succesfull entrepreneurs identifying their business goals, building teams and launching businesses.

Learn more

Founded in 1975, BPA operates in the most diverse areas of law, conquering over the past 40 years excellence in providing legal advice on a national and international level

Learn more

A group of eight friends donating a portion of their time and legal knowledge to anyone who makes the world a better place with good ideas.

Learn more

The Partners

Sidney Dias
Sidney Dias

Sidney Dias

Accountant, graduated from the Federal University of Rio de Janeiro, postgraduate degree in Controllership by UFRJ. Founder of Sima, worked as Controller for 2 years and has an International consulting firm experience.

Middle Market companies consulting experience, paralegal routines expertise and English fluency.

[email protected]

Max Gabriel
Max Gabriel

Max Gabriel

An accountant, who hold a B.S. degree in Accounting from the Federal University of Rio de Janeiro and postgraduate degree in Financial Management and Controllership from FGV-RJ. Worked as Controller in a large industry and as senior manager of an international consulting firm.

Fluent in English, he has 14 years of experience in accounting, tax, financial and payroll outsourcing projects, as well as systems deployment and process mapping expertise, serving customers from a wide range of industries such as energy, telecommunications, oil, retail-food

[email protected]


Adriana Marques
Adriano Cardoso
Pedro Henrique
Fernando Reis
Jean Lucas
Edgar de Paula
Mayara Ferreira
Jaquelene Santos
Thamires Cabral
Alcides Floriano
Claudia Cosendey

Throughout specialization programs and continuous education our team keeps updated, so we can share new resources and skills with those who would like to start a new company or with a business owner.

Leave balance sheets, reports, accounting books, tax returns in the hands of our team so you can invest your time on what you do best.

Shall we talk about your business?

We would love to hear back from you.

Contact us