Litigation Support Guide 2026 : Europe-wide
Ranked Individual
Provided by RSM Italy
As part of RSM Italy, the Forensic Investigations & Intelligence division sets a standard of excellence. The division provides high-level corporate intelligence, forensic and corporate investigation services worldwide, with a specialisation in Southern Europe, DACH and FSU region. The practice's approach redefines economic intelligence, forensic accounting, dispute resolution, litigation & arbitration support, by merging traditional investigative techniques and technical expertise with state-of-the-art technology. The choice of a technology-driven approach enables unparalleled efficiency, while the team of experts excels in deciphering complex digital and non-digital data landscapes. Thoughtful, thorough and innovative, RSM Italy brings clarity to complexity.
The practice offers a full range of services in Corporate Intelligence, Business Investigations, Forensic Accounting Investigations, Dispute & Litigation Support, Legal Technologies scouting.
The practice serves a diverse set of international clients, primarily law firms, private equity funds, banks and multinational enterprises. Work is conducted worldwide.
In the past year the practice has conducted projects on integrity due-diligence and Background Checks, M&A Intelligence, Sanctions screenings, internal investigations (e.g. data exfiltration, whistleblower allegations) and forensic reconstructions.
Provided by Chambers
RSM Italy has a growing investigative offering having recently merged with 36Brains in 2024. The team is regularly instructed by clients for corporate intelligence, business investigations and forensic accounting matters.
Provided by Chambers
I have been consistently impressed by the exceptional quality of RSM Italy's work in intelligence and forensic accounting. What truly sets it apart is its unique combination of deep local expertise and a strong international footprint. The firm demonstrate an outstanding ability to navigate complex local environments with a deep market understanding while maintaining a global perspective, which is critical especially for international clients.
RSM gave me real support, with the only aim of a deep and accurate analysis of the available data. The firm is very skilled in the field of the investigations for legal purposes and is able to assist the lawyer in strategy preparation.
RSM is one of the highest providers of technical services in Italy: sharp, highly responsive and with a tailor-made approach.
RSM Italy provides the quality of service paired with flexibility. The firm does not offer a fixed package of service; rather, it provides tailored support, integrating its services with our legal work, ensuring an excellent result.
Provided by Chambers
Marianna Vintiadis heads RSM Italy's forensic investigations and intelligence department. She is highly regarded amongst peers and clients alike for her expertise in forensic investigations.
Marianna is a star of her profession.
Marianna is extraordinary talented and very skilled in her role: she is responsive, highly qualified and really able to outline better strategies for better outcomes.
A key strength of the firm is the leadership of Marianna Vintiadis, who is widely recognised as a true leader in the field. With over 20 years of experience in Italy, she brings unparalleled expertise, credibility and strategic vision.
She was the most serious and competent private investigation manager I have ever worked with.
She is the go-to person for complex forensic investigations in Italy, with a wealth of experience, a pragmatic approach and the flexibility required to partner with our legal team.
Business Intelligence & Investigations
Provided by RSM Italy
Cristina Posa
Vittorio Colombo
Marianna Vintiadis
Head of Department
Marianna Vintiadis
View profile of Marianna Vintiadis
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