After 7 years’ experience gained in 2 auditing and consulting firms, Caroline Da Costa joined the Chartered Accountancy division of the Exponens group in 2017 to become a Partner in 2023.
It supports customers of all sizes, with a particular focus on the industrial, hospitality and service sectors.
Assistance and auditing, setting up dashboards, accounting outsourcing and consulting are all part of our core business.
After four years of experience as an auditor, Grégory joined the Exponens Group in 2007 and became Partner in 2017.
Grégory leads International Department of Exponens, where he provides services mainly for clients in the services, pharmaceutical and technology sectors.
He provides day-to-day support and advice to listed and unlisted international groups on accounting, tax and employment issues.
He assists companies when setting up in France or abroad, in collaboration with the BKR International association.
His expertise includes transfer pricing, stock options, tax withholding and financial reporting, as well as representatives of foreign companies.
Anne Mouhssine joined the Exponens Group after 13 years of experience in the audit department of PwC (listed companies, subsidiaries of British or US groups).
She currently performs legal and contractual audits of SMEs and mid-market companies, start-ups and French subsidiaries of foreign groups.
She is the audit reference person at Exponens for the BKR International group.
Carole Monod joined Exponens in 1999 after three years in a medium-sized accounting and statutory audit firm.
She handles accounting and tax assistance assignments (bookkeeping, audit, reporting, etc.), particularly for companies in the real estate, private equity and services sectors, as well as in the public sector.
She also performs financial audits of projects financed by institutional donors, such as the European Commission or the French Development Agency, particularly in the international cooperation and research sectors.
Within Exponens, Carole is a member of the Quality & Ethics Committee.
During her initial professional experience with a consulting firm, Sophie Calvez developed expertise in project owner assistance, providing support for finance departments during migration of their information systems, and coordinating change management assignments.
She then provided assistance to permanent control managers in optimising their control processes and in implementing and monitoring regulatory projects. She also headed remediation missions.
She most frequently provides services to systemic French banks, but also to the industrial, real estate and healthcare sectors, as well as to smaller entities.
After having worked in the economics department of ARCEP, the French telecoms regulator, and obtained consulting experience with McKinsey, Matthias Collot joined the Exponens Group in 2006, where he advises the finance departments of corporate groups, mid-market companies and investment funds. In particular, he performs acquisition audits, prepares business plans, carries out management controls and provides risk consulting. In particular, Matthias Collot provides services to companies in the energy sector and start-ups, focusing on new energies, cleantechs, telecoms and IT services.
He is a member of the Association of Financial Directors and Management Controllers (DFCG).
Anne joined the Exponens Group in 2002 after four years of experience in a medium-sized accounting firm. She coordinates support and/or assistance assignments for large companies and SMEs, in particular assignments involving the outsourcing of the accounting function and providing assistance in consolidating financial statements, under both French and international accounting standards.
Anne Barraud also advises groups on the transition to IFRS and provides analysis on specific IFRS issues and off-balance sheet commitments. Lastly, she has developed specific expertise in monitoring off-balance sheet commitments.
Within Exponens, Anne is a member of the Executive Committee.
After several years spent in accounting firms, Thierry Messaz became managing partner of Exaulia in 2011 before joining the Chartered Accountancy Department of the Exponens Group in 2020.
The training programme in Economic Intelligence in which he enrolled in 2009 at the Institute for Advanced Nationale Defence Studies raised his awareness at an early stage of the strategic challenges facing economic players. As a result of this specialisation, he was a member of the working group of the Economic Intelligence Committee of the High Council of the Order of Chartered Accountants for two years.
His expertise equips him to provide services for all types of clients in all sectors.
Thierry Messaz is a member of the PLATO Yvelines microenterprise and SME managers’ network.
Philippe Delerive began his career with UAP in corporate pensions and then transferred to UAP’s Group Policies Department as technical manager of personal protection and health plans. In 1998, he joined AXA France’s Health Innovation Department and contributed to the health experimentation project and, in 2001, became AXA Courtage’s Technical and Financial Director for the retail and business market. In 2002, he joined GAN Assurances as Head of Personal Insurance before successively becoming Head of the Paris-Centre-Picardie region in 2007, Deputy CEO in 2011 and finally Chief Executive Officer of GAN Assurances from 2012 to 2016.
In 2017, he joined Exponens as a partner and became head of the Risk and Insurance Department.
Within Exponens, Philippe is a member of the Executive Committee and the Quality & Ethics Committee.
After having spent several years with the Deloitte group, Thierry Legrand joined Exponens to take charge of the non-profit and local authorities sectors. He provides accounting and statutory auditing services to associations and foundations in all sectors. He also advises on the implementation of budgetary control and the restructuring of non-profit groups. In 2018, he and Matthias Collot developed an offer of assistance for start-ups and growth companies.
Thierry Legrand is a member of the Non-profit Sector Commission of the Order of Chartered Accountants. He chaired the Eurus alliance from 2014 to 2022. He is also a member of the board of directors of the Reporters d’Espoirs association.
Within Exponens, Thierry is a member of the Executive Committee.
For over 20 years, Jean-Pierre Bourgin has been advising clients on the development of their businesses, particularly in the fields of services, real estate and healthcare.
A business school graduate and holder of an MBA and post-graduate degree in wealth management, he increasingly focuses his expertise in the field of wealth management strategy.
Jean-Pierre Bourgin’s know-how in wealth management consulting has been recognised by the Regional Council of the Ile-de-France Order of Chartered Accountants.
Jean-Pierre Bourgin is a member of the Association of Accounting and Financial Techniques (ATCF) and the Tax Club of Chartered Accountants.
Within Exponens, Jean-Pierre is a member of the Executive Committee.
Nathalie Lutz preforms legal and contractual audits of listed and unlisted groups. She has developed a specialisation in life insurance, property and casualty insurance, personal insurance, as well as in professional organisations.
She also coordinates the IS Audit, Internal Control and Financial Compliance activities of companies subject to AMF supervision.
Nathalie Lutz is Vice-President of the Development Commission of the National Board of Statutory Auditors (CNCC), as well as a member of the insurance Commission and delegated quality controller of the CNCC.
Within Exponens, Nathalie is a member of the Executive Committee and the Quality & Ethics Committee.
Charles Toublet rejoint le pôle Expertise Comptable du groupe Exponens en 2011, et devient Directeur Associé en 2021 puis Associé en 2023.
Il commence tout d’abord par accompagner une clientèle généraliste de TPE-PME en assistance et révision comptable. Depuis 2020, il contribue activement au développement de l’expertise d’Exponens dans l’accompagnement des sociétés de croissance, que ce soit via l’élaboration de business plan, le suivi budgétaire ou encore l’accompagnement à leur structuration.
After having managed the accounting and finance departments of subsidiaries of CAC 40-listed companies (industry, services and distribution) for nearly 15 years, he became the accounting director of a regional bank in 2007. In this position, he coordinated the migration of the accounting information system, implemented the regional consolidation of accounts (French standards and IFRS) and comprehensively reorganised the first- and second-level accounting control system.
He joined the Exponens Group in 2021 after having headed consulting and transition management assignments for ADS Consultants for 10 years.
His experience, combining operational management and consulting assignments, has made him a recognised partner of the accounting and finance departments of banks and insurance companies.
Stéphane Cuzin joined the Exponens Group in 1999 after obtaining a Master’s degree in Accounting and Financial Sciences and Techniques from Paris I. He became a partner in September 2017 after completing the Créateur d’Avenir curriculum, delivered within Alliance Eurus, and certified by EMLyon.
In statutory auditing, he has gained experience working for: credit institutions, private equity firms, associations and foundations in the SSE sector, religious associations, trade unions, works councils, OPCAs and family-owned industrial SMEs…
It also carries out quality control missions and audits projects abroad in the field of international solidarity.
Dorothée Damien joined the Exponens Group in 2007, become Junior Partner Director in 2016 and then Partner in September 2017, after completing the “Creator of the Future” programme, which is offered by the Eurus Alliance and certified by EM Lyon Business School.
Dorothée provides services to associations, endowment funds and foundations in all sectors, in particular accounting assistance, budget monitoring and setting up performance indicators, as well as organisational and financing audits.
Dorothée is also a member of the Associations Committee of the Paris Île-de-France Order of Chartered Accountants.
A chartered accountant by training, Thomas Fajgeles has specialised in assisting employee representatives for 30 years (CSE accounting and legal assignments). At the end of 2022, Volentis, the accountancy and consultancy firm of which he has been co-founder and co-director for 10 years, will join the Exponens Group. In addition to his chartered accountancy work for works councils, Thomas has also been advising company directors for many years. His interest in teaching and public speaking has also led him to be a business trainer specialising in ‘finance for non-financial people’ and for treasurers of works councils for 25 years, and to run communication courses for trainee chartered accountants and elected members of works councils.
Yvan Corbic is a Partner in the Exponens Audit Department following the merger in 2012 with Synergie-Audit, where he held the position of Junior Partner.
Yvan has over 20 years’ experience in contractual and legal auditing, and has developed expertise in contractual audits of commonhold owners’ associations, homeowners’ associations (ASL), jointly-owned property facilities association (AFUL) and property management companies. In the field of statutory audits, Yvan Corbic provides services primarily in the industrial sector and to listed real estate companies in the social housing sector. These experiences have attuned him to the accounting and tax specificities of these sectors.
Yvan Corbic’s expertise in commercial real estate has been recognised by the Regional Council of the Ile-de-France Order of Chartered Accountants.
He provides training (social housing home loans (PSLA), off-plan projects (VEFA)) for ARECOOP (training organisation of the National Federation of Social Housing Cooperatives), as well as on the Hoguet, SRU, ALUR and Pinel Acts. He is also a quality controller for the regional statutory auditors’ association (CRCC).
After 16 years of experience in various employment departments, Patricia Pierre joined the Exponens Group in 2008. She became a partner in 2015.
She advises on employment law and specialises in employment audits and the organisation of “Employment-Payroll” departments within companies.
She heads the Exponens Employment Department, which has 40 employees, including three employment law consultants.
She contributes to the work of the Employment Forum of the Eurus Alliance and of the Employment Group of the ATH Technical Association.
Within Exponens, Patricia is a member of the Executive Committee.
Stéphane Medić joined the group in 1994, where he has spent his entire career, becoming a chartered accountant and partner in 2009. The topic of his dissertation was “Providing an advisory offer tailored to microenterprises and SMEs in accountancy firms”, which confirms his in-depth understanding of the personalised advice required by owners of small and medium-sized business entities.
He manages the Cergy-Pontoise office, where he handles assistance and audits assignments, primarily for microenterprises and SMEs.
He is Vice-President of the Val d’Oise Association of Chartered Accountants.
Sylvia Callens joined the Exponens Group’s Chartered Accountancy Department in 2004 and became a partner in 2013, after having completed the Creator of the Future programme offered by the Eurus Alliance and certified by EM Lyon Business School.
She specialises in the catering sector and in business start-up support, and handles assistance and audit assignments for microenterprises, SMEs and SMIs. In January 2017, Raimbault Chaugny joined the Exponens Group and Sylvia Callens assumed responsibility for this 35-employee site in Les Mureaux.
She is also Chair of an approval committee for the “Initiative Seine Yvelines” platform, a leading non-profit network for financing business creators and buyers.
Sébastien Pincebourde joined the Exponens Group’s Chartered Accountancy Department in January 2006 as an associate and became a Partner in 2014, after having completed the Creator of the Future programme offered by the Eurus Alliance and certified by EM Lyon Business School.
He specialises in the social and solidarity-based economy and, more specifically, in the medico-social sector. He wrote his dissertation on head office overheads in this sector. He assists associations in accounting and tax matters, provides consultancy services and performs financial and budgetary analyses. He heads this business sector at the Cergy-Pontoise office.
Sébastien Pincebourde’s expertise in assisting associations and medico-social institutions and services has been recognised by the Regional Council of the Ile-de-France Order of Chartered Accountants.
He is a member of the ACE Club, the Cergy-Pontoise Business Club.
After 5 years in the EY Audit Department, Denis Guilbaud held the position of CFO in various companies in the banking and IT sectors. He was also responsible for relations with financial investors in connection with an LBO.
Building on his 12 years of experience in business, in 2005 he and Françoise Guilbaud founded DFG Finance, an accounting and audit firm that joined the Exponens Group in November 2019.
His experience has equipped Denis Guilbaud to offer particular expertise in the areas of wealth optimisation (real estate investment companies, personal income tax, wealth tax), management tools such as business plans and projected budgets, and in providing assistance to corporate managers.
He has developed recognised know-how in setting up and monitoring the accounting organisation of web start-ups.
Arnaud Cheval joined the Exponens Group in 1999 as an associate and became a Partner in 2011. After several years of experience in accounting, employment and auditing in various traditional accountancy fields and in the subsidiaries of foreign companies, he joined the Real Estate Department in 2006.
Arnaud Cheval specialises in accounting assignments for real estate companies and investment funds, as well as for real estate development companies.
Within Exponens, Arnaud is a member of the Executive Committee.
Sophie Breton joined the Exponens Group in 1994 after two years with KPMG. After performing statutory audit assignments in various business fields, she founded the Real Estate Department in 2005 and provides accounting and tax assistance services (bookkeeping, auditing, reporting, tax compliance, due diligence, etc.) to French and foreign real estate companies and investment funds.
In 2008, she began developing the Exponens Group’s specific expertise in accounting for property investment funds (OPCIs), which now enables Exponens to offer services specifically tailored to this type of real estate vehicle. Sophie Breton also provides regular professional training on these issues and participates in the work of the accounting commission of the French Association of Real Estate Investment Firms (ASPIM).
Within Exponens, Sophie is a member of the Quality & Ethics Committee.
Early in his career, Alain Forestier specialised in setting up reporting and management control systems, working in particular with German-speaking companies doing business in France. He also heads Exponens’ tax business.
He is a member of the Franco-German Chamber of Commerce and Industry and the European Tax Committee of the BKR International group.
After six years with Jean Arthuis et Associés, where her clients included the subsidiaries of British and US companies, Céline Prestat was given responsibility for Canal+’s accounting projects for three years, before creating her own firm in 2003.
In 2013, her firm joined the Exponens Group, where she became a Partner. Céline specialises in assisting companies in the audiovisual sector and is in charge of the firm’s portfolio of Korean clients.
Céline Prestat is also treasurer of the Boss Club, a business leaders’ club in western Greater Paris.
프랑스 공인회계사무소에서 6년간 영미권 고객 대상으로 회계 업무를 담당한 경험을 바탕으로 텔레비전 방송 채널 CANAL+에서 3년 동안 회계부서의 담당자로 업무를 총괄하였습니다. 2003년에 본인의 공인 회계사무소를 차렸으며, 2013년 그룹 Exponens 에 파트너로 합류하였습니다. 시청각 분야 재무 회계에 전문성을 가지고 있으며 오늘날 한국 고객을 위한 재무 회계 업무를 총괄하고 있습니다.
Within the Exponens Group, Antoine Renaud handles the wealth engineering issues of business owners and private individuals. He also holds the expertise required for Financial Investment Advisory (FIA) and Real Estate Transaction activities.
This enables him to set up financial and real estate investment solutions for individuals and companies (holding companies, real estate investment companies, trading companies, etc.).
Within Exponens, Antoine is a member of the Quality & Ethics Committee.
Nicolas Yakoubowitch began his career with SEFIGEC in Versailles in 2000. He took an early interest in the profession, becoming President of ANECS Paris and a member of the national board in 2003.
Nicolas has been an elected member of the board of the Conseil Régional de l’Ordre des Experts-Comptables de Paris IDF since 2012, within which he notably steers the Article 7 bis Commission, enabling financial executives to retrain in the profession. He and his firm joined the Exponens group in November 2017.
Nicolas Yakoubowitch’s skills in assisting companies in difficulty have been recognized by the Conseil Régional de l’Ordre des Experts-Comptables d’Ile-de-France.
Within the firm, he also carries out legal appraisal missions in conjunction with the administrators and judicial representatives of the Versailles Commercial Court.
After two years working at an audit firm, David Dana joined the Chartered Accountancy department of the Exponens Group in 1998, where he focused on small and medium-sized enterprises. He joined in 2006 the International Department, which offers assistance with setting up operations, tax compliance and accounting reporting to entities owned by foreign groups.
David Dana was made Partner in 2010 and heads the Italian office and Luxury sector, as well as the group’s Legal Department.
He is also the VAT reference person for France within the BKR International group, of which the Exponens Group is a member.
Emmanuel Maugé joined the Exponens Group in 1992 and became a partner in 1996. He currently heads a team of around twenty employees in the Chartered Accountancy Department.
From the outset, he has provided services for restaurants in Paris, some of which have been awarded Michelin stars, and has acquired extensive experience in this field.
He focuses on assisting and advising entrepreneurs by offering a cross-disciplinary approach to accounting, tax and legal issues.
He also has a wide range of experience in both the industrial and service sectors and, through audit and advisory assignments, assists groups of small and medium-sized businesses to develop and structure themselves.
Within Exponens, Emmanuel is a member of the Executive Committee.
Virginie Boesch is a Partner in Exponens’ Chartered Accountancy Department in Châtillon following the merger in 2012 with Synergie-Audit, where she held the position of Audit Manager. She has over 20 years’ experience in accounting and fifteen years’ experience in contractual audits, particularly in the commercial real estate sector.
Virginie has developed specific expertise in the contractual audit of commonhold owners’ associations and property management companies, as well as in the management of retailers’ associations through assignments performed for the largest French shopping centre real estate companies, such as Unibail-Rodamco Westfield, Carmila and Altarea Cogedim. Through these experiences she has developed expertise on economic indicators in the retail industry and the expectations of lessors on the management of retailers’ associations.
She has also developed expertise in assisting real estate companies that manage shared company cafeterias created in the form of associations, as well as in assisting social housing cooperatives. In the chartered accountancy field, Virginie Boesch works in a variety of sectors, such as retailers’ associations, shared company cafeterias, architectural firms, construction, solidarity-based property organisations, the liberal professions, import/export, property sellers and merchants. This range of experience enables her to understand the specificities of these various businesses.
Sophie Breton intègre le groupe Exponens en 1994 après deux années passées chez KPMG. Après avoir pris en charge des missions d’expertise comptable dans des domaines d’activité variés, elle est à l’origine de la création en 2005 du département immobilier et réalise des prestations d’assistance comptable et fiscale (tenue, révision, reporting, tax compliance, due diligences, …) à destination de sociétés foncières et fonds d’investissement, français ou étrangers.
En 2008, elle a initié le développement au sein du groupe Exponens d’une compétence particulière en matière de comptabilité OPCI qui lui permet aujourd’hui de proposer une offre de services spécifiquement dédiée à ce type de véhicules immobiliers. Sophie Breton anime d’ailleurs régulièrement des formations professionnelles sur ce sujet et participe aux travaux de la commission comptable de l’Association Française des Sociétés de Placement Immobilier (ASPIM).
Au sein d’Exponens, Sophie est membre du Comité Qualité & Ethique.
