Who we are

STUDIO CASTELLINI MERCORIO & PARTNERS is a firm of advisors which has been active in Milan in the field of corporate and tax consultancy for more than fifty years, since 1964. Initially, the firm had Sergio Castellini as its sole professional, then, from 1990, he and Stefano Mercorio established the current professional firm, which grew in time with the addition of new partners.

The Partnership currently consists of 4 professionals: 2 Founding Partners – Sergio Castellini and Stefano Mercorio – and 2 Partners – Davide Maiocco and Stefano Valentini.

The office includes young professionals with full professional credentials, engaged in the activity of consultancy and assistance for clients, working with the Firm’s Partners to guarantee quality and speed in the execution of assignments. The organization also has a data processing department and administration office for an integrated management of accounting and administrative services. The total staff number is approximately 18 people.

The professionals of CASTELLINI MERCORIO & PARTNERS have worked and work with client companies of leading national importance belonging to international groups, operating in all the principal product sectors, supplying both continuous consultancy with regard to all compliance in the areas of tax and administrative accounting, including the drafting of opinions, and also giving extraordinary professional assistance in contractual, crisis assessment, management and financial issues.

The firm defends clients in cases of tax litigation, from the phase of preliminary assessment to the drafting and execution of claims before the tax courts.

The partners of the firm also perform their professional activity with positions on Boards of Directors, Boards of Statutory Auditors and in auditing for companies, corporations and bodies operating in various sectors.