FinTech Guide 2026 : Brazil
Ranked Individuals
Provided by Fialdini Advogados
Created in 2003, Fialdini Advogados is a Brazilian law firm with broad expertise in the payments and financial technology markets, including fintechs and insurtechs.
Fialdini Advogados provides legal and regulatory services for companies of all sizes, from wannabes, startups and scaleups to consolidated players, acting for the industry as a whole: hardware manufacturers, software developers, card brands, financial institutions, payment institutions, issuers, acquirers, subacquirers, ISO, facilitators, gateways, loyalty program companies, investment funds, insurance companies, exchanges and even self-regulation associations.
Provided by Chambers
Fialdini Advogados is a boutique firm that advises on contentious and non-contentious FinTech mandates. The team assists with regulatory issues before the central bank and advises on the structuring of innovative payment platforms. Its lawyers are also retained by players from the payments and financial technology markets to handle instant payment network matters.
Provided by Chambers
Fialdini Advogados advised RegTech company RegulatórioMais on regulatory compliance matters.
Provided by Chambers
Fialdini's key strength is having a strategic mindset when facing regulatory challenges. They bring together creativity and caution, balancing innovative solutions with regulatory compliance.
Fialdini has a deep understanding of the technology and SaaS industry, which allows the team to offer highly relevant and commercially practical advice.
One of the key strengths that distinguishes this department is their genuine partnership approach. They work closely with clients, acting as true business allies rather than just legal advisors.
Fialdini Advogados is focused on FinTechs and financial markets, including payments. They are always up to date, and the support they give is unique and tailor-made.
I like the whole team; they provide a great service. Especially when it's something new, they're really on it. They are very in touch with the regulator and government.
Provided by Chambers
Vanêssa Fialdini is a respected practitioner who is often retained to assist with regulatory mandates before the central bank. She is also particularly noted for her expertise in payment-related matters.
Vanessa consistently provides outstanding legal support, marked by responsiveness, clarity and a client-focused approach.
Vanessa is really well connected and knows everyone. She has opened doors I didn't even realise needed opening. She is very agile and business-focused.
Vanessa stands out for her strategic vision and deep regulatory expertise, particularly in the payments and FinTech sector. She combines technical depth with practical business insights.
Vanessa is distinguished by her deep technical expertise. She brings a level of precision and regulatory knowledge that instils great confidence, particularly in highly complex matters.
Mariana stands out for her exceptional commercial awareness and strategic mindset. She doesn’t just interpret regulations, she anticipates them.
Mariana is always very helpful and promptly meets all demands with quality deliverables.
Head of FinTech Legal
FinTech Legal
Provided by Fialdini Advogados
Mariana Mendonça
Lúcia Helena Bárros
Mariana Mendonça
View profile of Mariana Mendonça
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