Before joining SMM Advocates, Wincen was associated with the renowned international law firms O’Melveny & Myers and DLA Piper, where he diligently handled a diverse array of legal matters. His expertise covered areas such as bankruptcy and restructuring, competition, commercial disputes, cross-border acquisitions, employment, general corporate issues, international arbitration, international trade, and investigations. Notably, he was seconded to Pfizer Indonesia, where he managed all the company’s legal affairs.

As a Partner at SMM Advocates, Wincen has advised major multinational companies on conducting business in Indonesia and leading significant acquisition transactions. He has also led the firm’s dispute-resolution practice. At SMM Advocates, he has worked with a distinguished clientele, including leading FTSE 100 and S&P 500 companies.

Currently, Wincen serves as a Vice-Chairman of the Continuing Education Division of the Indonesian Advocates Association and a delegate to the International Chamber of Commerce Commission on Arbitration.

He has been invited as a speaker and expert by numerous key stakeholders, including the Indonesian Commission for the Supervision of Business Competition, the Indonesian Ministry of Defence, the National Resilience Institute of the Republic of Indonesia, and various Indonesian state-owned enterprises. Additionally, he has facilitated and spoken at prominent forums such as the International Chamber of Commerce, the Singapore International Arbitration Centre, the Indonesian Advocates Association, and the Law Society of Singapore. His writings have also been featured in leading publications, including the International Financial Law Review and Lexis Nexis Advanced for Bankruptcy Law, Competition Law, and Arbitration.

The Chambers Asia-Pacific 2024 noted, “Wincen is really dedicated, helpful, responsive and knowledgeable. He takes the time to understand how our business is run, when undertaking the job from us.”

The Legal 500 Asia-Pacific 2024 described, “Wincen Santoso was available to respond to queries from time to time and provided timely advice and guidance throughout the transaction. While his team worked on different aspects, he had full oversight over all the aspects of the transaction.”