About us

Our leaders


Dražen Nimčević

Tax and Legal Partner in Charge for Deloitte’s South Central Europe Region and Country Managing Partner

Dražen has been with Deloitte since October 2005 and is the leader of the tax and legal services for Albania, Bosnia and Herzegovina, Bulgaria, Croatia, Kosovo, Montenegro, North Macedonia, Serbia and Slovenia. He is responsible for the organisation, development and provision of tax advisory services in those countries and acts as the Quality Assurance Reviewer on tax advisory, tax audit and due diligence assignments.

Dražen has an extensive experience in providing services in the areas of corporate and personal income tax, value-added tax, international staff structuring, transfer pricing implications in Croatia and abroad, tax due diligence of Croatian companies, general research of the regional tax environment and regulation governing foreign direct investment projects. He has specialised in advising international clients interested in investing in Croatia as well as Croatian multinational enterprises.

He has graduated from the Faculty of Economics, University of Zagreb.

Helena Schmidt

Tax and Legal Partner

Helena is leading the indirect tax group and business processing outsourcing group. She has more than 20 years of experience advising clients on corporate tax, VAT, customs and excise duty matters. Helena joined Deloitte in 2003 after working as a consultant with other Big Four company.

Helena holds a degree in economics from the University of Zagreb, and an EMBA from Cotrugli business school.

She regularly authors articles for Croatian professional magazines and lectures at tax seminars. She was a member of the VAT Expert Group at the European Commission and is regularly listed in Global Indirect Tax Leaders’ guide by International Tax Review.

She is the leader of Deloitte’s SheXO initiative and encourages diversity in different management areas and organizational structures.


Natko Sertić

Tax and Legal Partner

Natko Sertić is a Partner at the Tax Department, with over 12 years of experience in tax advisory, including corporate incomed tax, value-added tax as well as other areas of the Croatian and international tax practice. He graduated from the Faculty of Economics and Business in Zagreb and obtained his master's degree in Accounting and Taxes.

Natko has been leading the corporate income tax and transfer pricing unit. Over the years of the professional career he has specialies in providing advisory services to international and Croatian clients, in particular in transaction planning from the aspect of corporate income and value-added tax planning, transfer pricing and application of doubtle taxation treaties.

He has gained a specific experience in buy-side and sell-side transaction support services as part of due diligence engagements and various tax reviews, as well as in structuring international transactions to optimise the operations and minimise risks.

He is the head of Deloitte Private Club, an initiative aimed to support the networking of private entrepreneurs and exchange ideas and experiences as well as learn about best practices that may significantly improve the development and outlooks of the Club members' organisations.


Katarina Kadunc

Audit and Assurance Leader Partner

Katarina is Audit and Assurance partner in the Croatian and Slovenian Deloitte office in Ljubljana. She joined Deloitte in 2003. Katarina graduated from the Faculty of Economics in Ljubljana (with a major in finance, accounting and audit) and completed her studies at the Slovenian Institute of Auditors, receiving the title Certified Auditor. She acquired the ACCA licence in 2009 and the title of Certified Internal Auditor of the Slovenian Institute of Auditors in 2014.

Katarina was also the leader of the Centre of Excellence in Corporate Governance for Deloitte Adriatic and is still an active lecturer. She gives lectures on corporate governance within the Deloitte Academy and is responsible for managing assessments of internal audit, quality of internal audit function and of supervisory board performance.

Her main corporate governance references are: Pivovarna Laško, ERGO, Kemijski inštitut, Zavarovalnica Triglav, Telekom Slovenije, Abanka, Nova KBM, Petrol, Mercator, Gorenje, Slovenske železnice, Gozdarski inštitut, Ministrstvo za šolstvo in druge.

Marina Tonžetić

Audit and Assurance Partner

Marina is an Audit and Assurance Partner with many years of audit experience. She is an ACCA certified accountant, a member of the Institute of Internal Auditors (IIA), a CIA as well a certified internal and external auditor in the Republic of Croatia.

After graduation in 1997, she launched her career path at Arthur Andersen where she worked until June 2002 when she joined the Deloitte audit team performing most complex and most challenging audit engagements. Marina has an in-depth expertise in performing IFRS financial statement audits, audits of mergers and acquisitions, due diligence and business advisory services. Complex consolidated financial reporting is another area of her specialisation.

At Deloitte Marina leads CFO and Finance Function support initiatives. She is also leading the diversity initiative and promotion programmes at various governance levels within the organisation.

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