About
Biography
Experience
Hendrik Silalahi is the co-founder and senior partner of William Hendrik & Siregar Djojonegoro, one of the fastest-growing law firms in Indonesia. He has developed a reputation for his hands-on involvement in complex corporate transactions, particularly mergers and acquisitions, both domestically and across borders. Before co-founding his own firm, Hendrik held senior roles at one of Jakarta’s largest law firms and worked for a big four accounting firm. He has also served as general counsel for several leading multinational companies and major Indonesian conglomerates, providing him with well-rounded expertise in both corporate advisory and dispute resolution.Specialty
Hendrik Silalahi specializes in mergers and acquisitions (M&A), as well as capital markets, corporate and commercial law, inbound investment, aviation, and taxation. He is particularly recognized for his successful management of Initial Public Offerings (IPOs), joint ventures, and other high-profile corporate resolutions across diverse industries such as telecommunications, shipping, and beverages. His practice is characterized by a deep understanding of Indonesia’s legal, regulatory, and commercial landscape, enabling him to guide clients through complex and technically demanding transactions.Education
Hendrik Silalahi graduated with a law degree from the University of Indonesia’s Faculty of Law in 1997.
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Capital Market Lawyer of the Year 2024 awarded to Hendrik Silalahi for his vital role in facilitating numerous Initial Public Offerings (IPOs) and excellence in navigating complex legal frameworks2.
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Ranked second among IPO Legal Advisors in 2021 for handling the most IPO transactions in 2019, highlighting his leadership in capital market transactions1.
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Recognized in Hukumonline Capital Market Lawyers Rankings 2024 for being among the top lawyers for largest IPO issuances and most IPO transactions, reflecting his major case successes in M&A and capital markets34.
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Co-founder and senior partner of William Hendrik & Siregar Djojonegoro Law Group, a leading Indonesian law firm highly ranked for M&A, capital markets, and IPO transactions, demonstrating his leadership role in the firm and industry25.
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Played a key role in the firm’s recognition as a Recommended Law Firm by Asialaw for IPO transactions, Capital Market, Mergers and Acquisitions, and noted as a Notable Practitioner for Litigation and Dispute Resolution1.
Law Firm
William Hendrik & Siregar Djojonegoro
Hendrik Silalahi featured in

Practice Area
How to Acquire an Indonesian Airline in 2026: Regulatory Approvals, Foreign‑ownership Limits and M&A Checklist
29 Aug 2026

Practice Area
Asset Sale vs Share Sale in Indonesia, Tax, Liability and When to Choose Each
27 May 2026

Practice Area
What Is the Filing Fee for Merger Control in Indonesia? Who Pays, the 0.004% Formula and How to Notify KPPU
20 May 2026

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How PMK 1/2026 and Indonesia's 2026 Merger‑control & IDX Rule Changes Reshape M&A Restructuring, a 2026 Deal‑team Playbook
13 May 2026

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M&A Lawyers Indonesia 2026: KPPU Merger Control and PMK 1/2026 Tax Rules
6 May 2026

Practice Area
Indonesia M&A 2026 Guide: KPPU Reg, Foreign‑to‑Foreign Nexus & PMK 1/2026
29 Apr 2026
Frequently Asked Questions
Who is Hendrik Silalahi?
Hendrik Silalahi is the co-founder and senior partner of William Hendrik & Siregar Djojonegoro Law Group, known for his involvement in complex corporate transactions, mergers and acquisitions, and capital markets in Indonesia.
What are Hendrik Silalahi's main areas of expertise?
His main specialties include mergers and acquisitions (M&A), capital markets, corporate and commercial law, inbound investment, aviation, and taxation.
What notable awards has Hendrik Silalahi received?
He was named Capital Market Lawyer of the Year 2024, ranked second among IPO legal advisors in 2021, and recognized in Hukumonline Capital Market Lawyers Rankings 2024 for his success in IPO transactions and M&A.
What is Hendrik Silalahi's educational background?
He graduated with a law degree from the University of Indonesia’s Faculty of Law in 1997.
What is the reputation of the law firm co-founded by Hendrik Silalahi?
William Hendrik & Siregar Djojonegoro Law Group is highly ranked for M&A, capital markets, and IPO transactions and has been recognized as a Recommended Law Firm by Asialaw.
