About Quantus Advisory

A chartered accountant and statutory auditor, Sylvain Quagliaroli spent the greater part of his career at Grant Thornton, where he was a partner for over thirty years. There he built the Transaction Services practice, then founded and led the Forensic & Investigation service line, working on financial expertise, dispute and international arbitration assignments.

A specialist in business valuation, complex financial instruments and private equity, he also developed a dedicated management package practice and has advised investment funds and asset management companies for many years.

Sylvain has taken part in several professional working groups, notably with the French accounting standards authority (ANC) and the French institute of statutory auditors (CNCC). He served two terms on the International Private Equity and Venture Capital Valuation Board (IPEV Board), the international reference body for private equity valuation good practice.

He founded Quantus Advisory in 2016 and has served as its President ever since.

Holder of the French chartered accountancy qualification (DEC), Agnès Quagliaroli brings more than twenty years of experience in accountancy and audit, gained notably at Grant Thornton in an international environment.

Over the course of her career she has developed a thorough command of corporate accounting, financial and internal control matters.

Agnès has been with Quantus Advisory since its creation in 2016, and initially served as its President. As General Secretary she now oversees the firm’s administrative and financial management, its internal organisation and its risk management, ensuring that risks are controlled, that procedures are followed and that the firm runs smoothly day to day.

A graduate of KEDGE Business School (Euromed), Sophie brings over 20 years of experience in financial advisory and valuation. She spent close to 17 years in the Transaction Services teams at Grant Thornton and then KPMG, where she advised investment funds and companies on nearly 150 acquisitions and disposals.

In parallel she developed specific expertise in the valuation of management packages and complex financial instruments, as well as in purchase price allocation (PPA) and valuation in a private equity context.

Sophie joined Quantus Advisory in 2023 as Partner & Director. She now advises principally investment funds, asset management companies and law firms on their valuation matters: company and management package valuation, determination of market interest rates, PPA, private equity portfolio valuation, employee share schemes and transaction services.

Holder of the French chartered accountancy qualification (DEC), Alice Quagliaroli specialises in accounting and tax support for investment funds and asset management companies.

Before joining Quantus Advisory in 2023, she built her expertise at Sefico Nexia, a member firm of an international network, where she worked on accountancy assignments for a diverse client base.

At Quantus, Alice leads the Quantus for Funds® service line, dedicated to private equity and asset management participants. She supports funds in maintaining and supervising their accounts, preparing their annual financial statements and meeting their regulatory and tax obligations.

She also brings particular expertise in the international taxation of funds, notably in relation to reporting obligations to the United States Internal Revenue Service (IRS).