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Our Executive Committee

Meet the members of the Executive Committee of Deloitte Belgium.

Piet Vandendriessche

Chief Executive Officer (CEO)

Piet Vandendriessche is the Chief Executive Officer of Deloitte Belgium. He first took up the position on 1 June 2016. As CEO, Piet leads and manages the Executive Committee and sets the strategic direction of the firm. He is also a member of the Deloitte North South European Executive. Piet believes strongly in the impact Deloitte can create for its clients and talent, and for society as a whole. Our strategic professionals stay abreast of the changes shaping our world and bring innovative and sustainable solutions to our clients. Similarly, through the Deloitte Foundation the firm supports a wide range of social projects in Belgium and abroad. These focus on education, innovation and entrepreneurship – areas that make the best use of our skills.  In a long career at Deloitte with many opportunities to grow, Piet attaches great importance to maintaining a transparent, dynamic environment that provides people with plenty of room for personal and professional advancement.

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Piet Vandendriessche

Joël Brehmen

Managing Partner, Audit & Assurance

Joël Brehmen is the Managing Partner of the Audit & Assurance practice of Deloitte Belgium. He has over 23 years of experience in audit and risk advisory. He has coordinated US GAAP and IFRS audits for large corporations mainly within the consumer business and manufacturing industry. He has built up extensive experience with international environments and internal control systems. Joël is and has been responsible for the audit of a number of quoted companies and companies with cross-border operations.

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Eric Callewaert

Managing Partner, Clients & Industries

Eric, who joined Deloitte in 2002, is the managing partner for Clients and Industries and a member of the Deloitte Belgium Executive Committee. He is also a member of Belgium’s Consulting leadership team. In addition to these responsibilities, Eric leads Clients and Industries for Consulting within Deloitte North and South Europe (NSE) and is a member of the NSE Consulting executive team. Eric has managed large transformation projects for companies in a variety of industries, building close relationships with CFOs and providing clients deep insights on issues that impact them the most.

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Kathleen De Brabander

Chief Financial Officer (CFO)

Kathleen is the Chief Financial Officer of Deloitte Belgium. She is a certified public accountant who conducts audits of listed and family businesses in the real estate, manufacturing and consumer industries. Kathleen’s experience allows her to combine strong business understanding with finance expertise while providing attest and assurance services to her clients. Kathleen strongly believes in the value of diversity, and the insights it brings to the leadership of Deloitte and to the whole firm.

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Geert Verstraeten

Christophe De Waele

Managing Partner Digital Offerings and Flexible Delivery Models

Christophe is responsible for digital offerings and flexible delivery models, assisting the Deloitte businesses in their digital transformation journey, and enabling them to leverage global delivery centres and flexible resourcing models. Christophe, who has over 20 years of experience, also leads the Global Tax Center Europe that renders compliance and reporting services to multinational companies across Europe. In addition, he is responsible for Innovation & Technology for the Belgian Tax and Legal practice, and is a member of the Deloitte Global Tax & Legal Digital Executive and the NSE Innovation Leadership Team.

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Lieve Creten

Tom Declercq

Managing Partner, Tax and Legal

Tom is managing partner of Tax & Legal, and he is a member of the Deloitte Belgium and Deloitte North and South Europe (NSE) Tax & Legal executive teams. He is also the NSE Tax & Legal Talent Leader. Tom has a wealth of experience in the talent sphere and more than 20 years of experience in Belgian and international individual taxation and social security planning. He is a certified tax advisor and a member of the Internship Commission of the Belgian Institute for Accountants and Tax Consultants.

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Tom Declercq

Inge Diels

Managing Partner Talent

Inge is the Managing Partner Talent and a member of the Deloitte Belgium Executive Committee. Inge is committed to making Deloitte a simply irresistible organisation that makes an impact that matters every day on our clients, our people, and on society. She endeavours to create a workplace where everyone feels able to be his or her authentic self - to have a voice, and be respected, regardless of ethnicity, gender, sexuality or any other characteristic. Inge is MBTI, Business Chemistry and ICF certified.

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Tom Declercq

Rolf Driesen

Managing Partner, Consulting

Rolf Driesen is managing partner of Consulting, a practice with 1,000 consultants working across five offerings: Strategy, Analytics and M&A, Customer & Marketing, Business Operations, and Human Capital and Enterprise Performance. The last 20 years, Rolf has advised clients across a variety of industries and helped them to deliver their critical business transformation programmes. These programmes include shared services, outsourcing, offshoring, and business portfolio changes and restructurings.

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Koen Vandaele

Nikolaas Tahon

Managing Partner, Accountancy and Deloitte Private

Nikolaas is managing partner of Deloitte Accountancy and Deloitte Private. He is also a member of the Deloitte Belgium Executive Committee and the Deloitte North West Europe board. Nikolaas focuses on financial and operational reporting and planning, financial performance analysis, defining areas of improvement and action plans, strategic decision making, and outlining the continuity of management and shareholding for family companies. Nikolaas leads Deloitte’s Technology Fast 50 and Belgium Best Managed Companies programmes.

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Nikolaas Tahon

Hilde Van de Velde

Chief Purpose Officer

Hilde is Deloitte Belgium’s Chief Purpose Officer. In that capacity, she is a member of the Belgian Executive Committee as well as of the Ethics Committee. She is also part of the Deloitte North South Europe Executive Committee for People and Purpose. Since 2016, Hilde has been leading the Government and Public Services practice of the Belgian firm. Hilde has always been driven by a strong belief in the power of purpose. When she started her career as a consultant almost 20 years ago, Hilde chose to serve public sector clients because she wanted to combine excellent client service with societal impact.

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Tom Declercq

Laurent Vandendooren

Managing Partner, Risk Advisory

Laurent Vandendooren is managing partner of Deloitte Belgium’s Risk Advisory business unit. He is also a member of the Belgian Executive Committee as well as the North South Europe Risk Advisory Executive Committee. With 24 years of professional experience and a strong background in financial and operational auditing, Laurent focuses on governance, risk management, assurance, analytics, process design, and change management.

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Tom Declercq
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