Our team

Christian M. Strik, Tax Advisor and Attorney at Law, studied Dutch Law at Nijmegen University, Tax Law at Amsterdam University, and Economics (MA) at The New School for Social Research in New York (Fulbright-fellowship). Christian started his career as assistant professor in Tax Law at Nijmegen University and as an attorney at law and tax advisor with Caron & Stevens (Baker & McKenzie). He was asked to become the tax manager of the international team with Coopers & Lybrand (PriceWaterhouseCoopers) in Amsterdam. Christian is a member of the Amsterdam Bar (NoVA), and he has registered tax law as a jurisdiction in the jurisdiction register of the Dutch Bar Association.

He is also a member of the International Bar Association (IBA), the International Fiscal Association (IFA), the Society of Trust and Estate Practitioners (STEP), the Association of International Petroleum Negotiators (AIPN) and the American Bar Association (ABA). He was a reserve lieutenant-colonel with the legal department of the Dutch Army, specialist in emergency and marshal law. Furthermore, Christian is a commercial pilot. Christian has professional experience in international taxation for over thirty-five years.

Asli Sari, Legal Counsel and Attorney-at-Law, obtained her Master of Laws degree in European Private Law (LL.M) at the University of Amsterdam, Bachelor of Laws degree (LL.B) at Istanbul Bilgi University. She is native in Turkish and speaks English and German. Asli specializes in corporate law, contract law and corporate governance. This makes her an all-round consultant who is able to channel considerable experience and knowledge into energetic and practical solutions.

Duy Nguyen is practicing international tax law since 2007. Duy is a specialist in international VAT matters. Before joining Strik in 2019 Duy worked at Deloitte, PwC, EY and the Dutch Tax Authorities. Duy has experience in all kinds of tax law matters including litigation, set-up of international business models, tax rulings, ERP-systems implementations and general tax management. Duy is a subject matter expert in the field of e-commerce, digital economy, technology and telecommunications. Further, Duy has hard-nosed experience in the consumer products and retail sector regards their European and their e-commerce operations. Also Duy has extended experience in the cross border energy trading business, advising for more than 10 years energy traders with global operations.

Duy is client centric and practical taking into the equation the business and organizational drivers of the client. Duy graduated from the Tilburg University in 2007 (Master Taxation; Bachelor Taxation; Propaedeutic diploma Economics). Duy also finished his post-doc tax law education at the Dutch Order of Tax Advisers (NOB) in 2010.

Elizabeth Mafficioli del Castelletto, Tax Advisor, studied Tax Law at Leiden University and Business Economics at the HEAO in The Hague. She started her career with Loyens & Volkmaars Tax Lawyers (Loyens & Loeff) as an associate in the tax return team. Subsequently, Elizabeth worked with Coopers & Lybrand (PriceWaterhouseCoopers) in Amsterdam.

She also lectures on the Dutch tax system at the HEAO (university of applied science) in Rotterdam. Elizabeth is a member of the Scientific Board of Kluwer Law Taxation Publishers. She has over thirty years of professional experience.

Nikita Vinogradov, Partner, obtained his bachelor`s degree in International Private Law at Moscow State Institute of International Relations and an LLM degree in Business, Corporate and Maritime Law at Erasmus University Rotterdam.

He worked as legal counsel for an oil trading company and at a division of the Moscow city government.

Henk Jan Eekhoff, notary with over thirty years, studied Notarial Law at Nijmegen University. Before becoming notary, he worked as a notary candidate with BarentsKrans in The Hague and with Stibbe in Amsterdam. Henk Jan is a certified estate planner.

Denys Kashperiuk, Legal Advisor, obtained his bachelor`s degree of Law at Taras Shevchenko National University of Kyiv (Ukraine) and his LLM degree in Business, Corporate and Maritime Law at Erasmus University Rotterdam. Furthermore, he followed courses regarding, amongst others, international tax law, financial accounting, forensic accounting and fraud examination, and corporate finance.

During his study in Ukraine, Denys worked as an intern at a municipal administration, a public prosecution office and a court of first instance. Furthermore, after his studies in Rotterdam, Denys worked as an intern at two Dutch law firms. Thereafter, Denys worked for more than two years as a legal advisor and as a sales representative at one of the leading Dutch exporting companies.

Ronald Pfoster, Financial Controller, studied Accounting and Business Administration at the Sittard School of Business. He worked as a bookkeeper as well as a financial controller, and as such has more than thirty years of relevant experience.

Philipe A. van den Bogaert, Tax Advisor and Bookkeeper, studied SPD and thereafter Tax Advising at the College for Tax Advisors, of which he is a member. He worked as a bookkeeper and salary administrator for an administrative office and an insurance company.

Thereafter, Philipe worked on a freelance basis as a bookkeeper and tax advisor for several (small) companies. Philipe has more than fifteen years of relevant experience.

Bart van der Ploeg, Bookkeeper, has obtained his diploma in Modern Business Administration in 1990, and in 1997 obtained an additional diploma in payroll administration. Bart has worked at a tax consultancy and accounting firm. He was also, as administrator, involved in the P15 / P18 Gas Development Project of Amoco Netherlands Petroleum Company in Schiedam.

Furthermore, Bart has worked as (salary) administrator for the Dutch Development Finance Company (FMO) in The Hague for more than sixteen years. Bart has over thirty years of relevant experience.

Yuxia Jiang, China Desk, has obtain a bachelor degree in English Literature at the MT-8 level at the Shanghai International Studies University (China). Furthermore, Yuxia obtained a master’s degree at Stenden University in Leeuwarden (the Netherlands).

She is a Chinese National and translator Chinese – English and Chinese – Dutch (and vice versa).

Marja J. Cligge, Secretary, studied at the Schoevers Institute in Amsterdam. Marja worked at the administration department of the Kas-Associatie N.V. (Kasbank) for ten years.

Furthermore, she worked as an administration clerk for several commercial fashion companies. Marja has more than thirty years of relevant experience.

Sylvia Eijking, Bookkeeper, has obtained the practice diploma in Bookkeeping and thereafter she studied Business Administration (with an emphasis on tax law). Moreover, Sylvia has obtained several certificates for studies and courses in the field of administration, accountancy, communication and ICT.

She has worked for several governmental departments and for companies at the financial department. Sylvia has more than thirty years of experience in financial administration.