The history of PDM & PARTNERS STP and its Team
Founded in the 1960s, PDM Studio has become a benchmark for professional consulting. The founders, Fabio Petrocchi, Gianluca De Zan, Daniela Marchesini and Marco Pinelli, are certified public accountants and labor consultants with unique skills and resources. Our mission is to provide advice at the highest level, ensuring customized solutions for our clients' needs.
We are proud to offer a wide range of services, including tax consulting, accounting, labor consulting and more. Our experience and passion guide us in helping companies achieve success and growth. We are a dedicated and professional team, always ready to meet challenges and exceed our clients' expectations.
Choosing PDM & PARTNERS STP means choosing quality, reliability and expertise. We are here to support you in achieving your business goals. Contact us today to learn more and find out how we can help you grow and prosper.
TEAM
Our Founding Members
A team of experienced professionals dedicated to your success.
Gianluca De Zan
Certified Public Accountant and Auditor
Bachelor’s degree in Business Administration from the University of Pisa, grade 110/110 with honors.
Certified Public Accountant since 1991
Auditor
Founding partner of PDM Firm
Member of Study Commissions at the National Order of Certified Public Accountants
Many years of experience in tax and corporate matters
Fabio Petrocchi
Certified Public Accountant and Auditor
Diploma in Accountancy in 1976 and long collaboration with “Studio Dondero” in La Spezia.
Licensed to practice as a Certified Public Accountant in 1987
Auditors
Founding partner of PDM & PARTNERS STP
Consultant specializing in tax matters, with a focus on optimizing the tax structure for businesses, self-employed and private individuals
Daniela Marchesini
Labor Consultant and Auditor
Bachelor’s degree in Economics and Business at the University of Parma
Auditor
Labor Consultant since 2004
Founding partner of PDM & PARTNERS STP
Qualified to Asseverazione di Conformità e regolarità contributiva e retributiva delle Imprese (ASSE.CO.)
Lecturer in labor law, payroll and contributions at various professional training institutions
Member of the Provincial Council of the Order of Labor Consultants of La Spezia
Many years of experience in business and labor consulting, legal advice in labor law and labor relations
Marco Pinelli
Labor Consultant
Bachelor’s degree in Business Administration from the University of Parma
Labor Consultant since 2010
Ordinary Partner of PDM Firm
Qualified in Asseveration of Compliance and Regularity of Contribution and Payroll of Enterprises (ASSE.CO.)
Lecturer in labor law, payroll and contributions at various professional training institutions
Many years of experience in labor consulting.

