An independent audit and corporate advisory firm providing a broad range of solutions, supported by a high level of financial and transactional expertise, and delivering tailor-made responses to its clients’ challenges

Clients relationships

nurtured over time through tailor-made solutions adressing a wide range of corporate issues

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years of existence


Independent audit and advisory firm founded in 2004 with an entrepreneurial spirit, Advolis combines the expertise of 9 partners within a team of thirty.

Advolis’ growth has been guided by strong premises:

Independence with a clear intention: provide catered added value in audit, due diligence, financial advisory and transaction services A financial practice carried-out within a regulated structure encompassing statutory auditing certifications, contributing to ensure straightforwardness in the execution of all types of assignments Growth without compromising quality Advolis’ offer is organized along 4 lines of services:

  • Regulated Missions (Audit/Court Expert/Trustee)
  • Transactions & Capital
  • Performance & Compliance
  • Consolidation & reporting

Offices in Paris, Brussels and Hamburg, and correspondent firm in New York.

Advolis: at the heart of the marketplace, with the trust of a large variety of private and public actors, from mid-cap to major companies, institutions or private investment funds, both domestically and internationally




Advisory firms Advolis and Orfis join forces to better serve the changing needs of their clients -

Advolis, a firm specializing in financial audit and advisory services and Orfis, a Lyon-based audit, consulting and accountancy firm, today announce they are joining forces. The new group, which will have 140 employees and 18 partners, will be able to better meet the needs of their clients through all their different development phases and requirements.



Advolis expands its trustee services practice in Europe & appoints new head in Paris

Oliver Albrecht joins Advolis as head of its new Hamburg office, dedicated to Trustee assignements. Francois Dumonteil becomes the new head of the Trustee practice in Paris.


Our team

Patrick Iweins, chairman

Patrick Iweins, chairman

Audit & Court Expert

Patrick Iweins, chairman

ESCP Europe — Chartered Accountant — Statutory Auditor — Expert to the Paris Court of Appeal

President of Institute of Management Accountants — France.

Member of the commission on professional ethics, the commission on legal issues and of the financial markets audit committee of the CNCC (French Statutory Auditors Institute)

After 13 years as partner at RSM Salustro Reydel, Patrick Iweins was a founding member of Advolis in 2004. Patrick has solid experience in statutory or contractual audit including asset transfers and mergers. This, combined with his in-depth knowledge of international accounting standards, provides him with a wide range of situations to address.

Given is extensive knowledge of complex environments, Patrick also provides his expertise in litigation as arbitrator or expert.

Damien Bourg

Damien Bourg

Audit & Due diligence

Damien Bourg

MSG — IAE Lyon III — Chartered Accountant — Statutory Auditor

Damien Bourg began his career at RSM Salustro Reydel, where he built an expertise in the financial auditing of major groups in industrial sectors as well as in the field of media and communication.

Since Advolis’ creation, Damien’s focus is on providing reliable financial data to support corporate or investment decision-making processes, including restructuring situations.

His skill covers today complex operational and financial environments and includes:

  • Due diligence
  • Performance analysis and cost accounting
  • Business plans and independent business reviews
  • Covenant analysis, implementation of audit clauses…
Olivier Coutrix

Olivier Coutrix

Transactions & Capital

Olivier Coutrix

MBA Stern School of Business (New York University) — Sup de Co Reims (Reims Management School)

Olivier Coutrix’s experience encompasses both transaction and management sides which he now dedicates to shareholders and corporate advisory services.

Olivier was a partner within private equity funds for 15 years, prior to which he worked in international corporate finance and M&A. He has also been in charge of restructuring and turnaround situations, in particular following a change of control.

Olivier concentrates on the following areas:

  • Transaction services (business reviews and due diligence of acquisitions or equity investments);
  • Advisory to shareholders;
  • Mergers and acquisitions, divestment programs, carve-outs…;
  • Structuring and modeling of business plans;
  • Equity and debt financing structuring.
Véronique Genet

Véronique Genet

Consolidation & reporting

Véronique Genet

DESS (Master in audit) — Master of business law (Paris V)

Véronique Genet is specialized in the design, organization and implementation of consolidation and reporting processes.

Véronique has supported numerous clients on first-time consolidation, on switching to IFRS standards and on consolidation and reporting systems migration.

Her seven years’ experience in audit, combined with two years at a major consolidation software publisher and six years as head of the RSM Salustro Reydel Consolidation Reporting department give her twofold competence in finance and information systems. Véronique joined Advolis in 2005.

Hugues de Noray

Hugues de Noray

Audit & Fairness Opinion

Hugues de Noray

IEP Paris — Chartered Accountant — Statutory Auditor

APEI Expert (french independant experts association), Member of the SFEV (French financial appraisal association), Member of different committees on accounting standards at CNCC (French Statutory Auditors Institute).

Hugues de Noray combines in depth competences in financial audit and valuation, applied to complex financial operations.

He has built a valuable experience in intellectual property rights, particularly in the audiovisual, publishing and media industries, with credentials in digital businesses as well.

Hugues assists clients in various areas :

  • Statutory audit of SMEs: process due diligence, internal control and financial reporting, particularly in ITCs;
  • Mergers and Acquisitions: buy or sell side due diligence, representations and warranties claims, audit provisions management, etc.
  • Companies, assets, brands and financial instruments appraisals: modeling and analysis of business plans, implementing context-specific valuation techniques, valuation of warrants, etc.
  • Statutory auditor for asset transfers and mergers, and independent appraisals.
Grégoire de Silvestre

Grégoire de Silvestre

Performance & processus

Grégoire de Silvestre

ISEP (Engineering) — DESS from IAE Paris, Sorbonne (Management) — CISA Certified

Grégoire de Silvestre joined Advolis on its founding in 2004 after 12 years of consulting practice in the RSM Salustro Reydel Information Systems Department.

With a dual competence in IT and management, Grégoire is mainly involved in operational advisory services applied to accounting and financial processes and their relevant information systems.

His main scope is as follows :

  • Process and organizational optimization in the framework of performance improvement strategies
  • Assessment of operational and IT risk management
Antoni Vassileff

Antoni Vassileff

Trustee – Brussels office

Antoni Vassileff

École Polytechnique engineering school — Master in finance, economics and management from Ecole des Ponts & Chaussées — Master in economics from Harvard

The Brussels office is managed by Antoni Vassileff.

Prior to joining Advolis in 2009, Antoni Vassileff worked at the European Commission in the DG Competition merger-control teams.

Before this he was analyst at WBI (Washington DC), where he consulted to companies on investment opportunities in emerging countries. Antoni Vassileff is a graduate of École Polytechnique engineering school, holds a Master in finance, economics and management from Ecole des Ponts & Chaussées and a Master in economics from Harvard.

Cyril Bordeaux

Cyril Bordeaux

Audit & IT Governance

Cyril Bordeaux

INSA Lyon (Engineering) — ESCP, Master Audit & Conseil — CISA Certified

Cyril Bordeaux joined Advolis in january 2017 after 12 years at Deloitte (French office), where he led the Control Assurance practice.

He has a double competence in Information System including strong IT expertise and Audit / Finance. He is mainly involved in Information System Audit & Consulting engagements around complex environments or projects.

His main fields of expertise are :

  • IT governance (strategy, cost analysis and monitoring, organization, benchmark, …);
  • Transformation (business case, project review / management, secure project, test and go live phases management, change management,…);
  • Audit & internal control (cartography of risks, audit, GRC, rules and regulation, security, data privacy, forensic, data analytics, …).

Our offices

Our offices in Paris

Advolis Paris

  • Adress : 38, avenue de l’Opéra, 75002 Paris
  • Phone : +33 (0)
  • Email :


  • Lines 7, 8, 3 : Opéra Station
  • RER A: Auber
  • Line 14 : Pyramides Station

Car parks

  • Saemes Meyerbeer
  • Saint Honoré
  • Indigo Vendôme

Our offices in Brussels


  • Adress : Square de Meeûs, 37 – B-1000 Bruxelles
  • Phone : +32 (0)
  • Contact : Antoni Vassileff |


  • Lines 2 et 6 : Trône Station

Our offices in Hamburg


  • Adress : Stadhausbrücke 1-3, 20355 Hamburg
  • Phone : +49 40 3764 4671
  • Email: Oliver Albrecht |


  • S-Bahn 1 : Stadthausbrücke
  • Underground 3 : Rödingsmarkt


  • An der Stadthausbrücke 5-7 (Contipark)
  • Rödingsmarkt 14

© 2015 – 2018 Advolis • 38, avenue de l’Opéra • Paris, France