Juventhy M. Siahaan, S.H., M.H.
Managing Partner JBD Law Firm
Juventhy M. Siahaan, S.H., M.H., fondly known as “Juve,” is the Managing Partner of JBD Law Firm and a PERADI-certified Advocate (NIA: 13.01130) with over 20 years of experience in litigation, corporate law, and dispute resolution practice. Throughout his career, Juve has handled various strategic cases covering general and special criminal law, civil and commercial disputes, bankruptcy and Suspension of Debt Payment Obligations (PKPU), industrial relations, state administrative law, as well as cases with a public interest dimension.
With extensive courtroom experience, Juve developed a strategic litigation approach combining sharp legal analysis, mastery of procedural law, evidentiary strategy, and a deep understanding of his clients' business and reputational interests. He is accustomed to handling complex, sensitive cases with strategic implications.
One notable matter is the M. Adhiya Muzakki case, where Juve acted as defense counsel in a criminal case that proceeded to the Supreme Court level. The case became a significant precedent in the application of the new Criminal Procedure Code (KUHAP), particularly regarding provisions restricting the Public Prosecutor from filing an appeal (kasasi) against an acquittal. The case concluded with the Supreme Court rejecting the Public Prosecutor's appeal, maintaining the acquittal of Adhiya Muzakki.
Read media coverage on the M. Adhiya Muzakki case:
In cases involving public interest, Juve also represented the residents of Bungur in a dispute against PT Kereta Api Indonesia (Persero). He represented the residents, including retired Ministry of Transportation employees, in fighting for legal certainty and protection over the disputed object while challenging the enforcement actions taken by PT KAI.
Read detikcom coverage regarding the Bungur residents and PT KAI dispute:
In the field of industrial relations, Juve acted as legal counsel for former workers of PT Pan Gas Nusantara Industri (PT PGNI) in pursuing their rights against Bank BRI. The case escalated to the Supreme Court and garnered media attention following the Supreme Court's order instructing the payment of the former workers' rights.
Read detikNews coverage regarding the former PT PGNI workers case:
Over two decades of practicing as an Advocate have shaped Juve into a litigator accustomed to managing complex, sensitive matters with strategic consequences. Through JBD Law Firm, he has established a legal practice prioritizing integrity, strategic sharpness, courage in litigation, and the protection of clients' legal and business interests.
Education
Professional Experience
Managing Partner – JBD Law Firm
2017 – Present
As Managing Partner, Juventhy M. Siahaan leads both the litigation and corporate practice groups, overseeing complex, high-value disputes worth billions of rupiah. His portfolio includes online lending debt settlements, corporate restructuring, mass employment termination cases, and high-stakes civil and commercial litigation.
Juve is directly involved in designing case strategies, supervising courtroom advocacy, and managing client relationships, ensuring that legal solutions are not only effective in court but also commercially practical. Beyond casework, he mentors Associates and junior lawyers in legal research, drafting, negotiation, and litigation tactics, fostering a culture of excellence, ethics, and client-focused practice. Under his leadership, JBD Law Firm has solidified its position as one of Indonesia’s premier legal advisory firms.
Senior Partner – APRJ & Partners
2012 – 2017
Juve developed and led the litigation practice at APRJ & Partners, handling criminal and civil defense cases across the District, High, and Supreme Court levels. He managed complex cases involving corporate fraud, regulatory compliance disputes, and multi-billion rupiah civil claims.
He supervised case preparation, coordinated with clients, witnesses, and experts, and crafted litigation strategies that consistently produced favorable outcomes. Juve also implemented mentorship programs for junior lawyers, emphasizing courtroom skills, research methodology, and ethical advocacy.
Direktur Litigasi – LBH Amin
2009 – 2012
As Director of Litigation, Juve led legal aid teams representing victims of corruption, human rights violations, and public-interest cases. He was responsible for case strategy, preparation of legal submissions, and courtroom representation, while also contributing to initiatives promoting judicial reform and legal education.
He coordinated workshops, supervised paralegals, and guided junior lawyers, ensuring high-quality advocacy in both litigation and non-litigation matters. His work significantly strengthened LBH Amin’s impact on anti-corruption campaigns and human rights litigation in Indonesia.
Legal Manager – PT Dimas Utama
2007 – 2009
Juve headed the legal department, managing corporate, commercial, and employment law matters, including compliance programs and dispute prevention strategies.
He drafted and reviewed contracts, supervised internal investigations, and advised senior management on risk mitigation. He ensured adherence to labor laws, corporate governance standards, and regulatory requirements, aligning legal operations with strategic business objectives. His guidance helped minimize legal exposure and supported the company’s sustainable growth.
Core Expertise
Key Achievements & Contributions
Legal Philosophy
“As an advocate, my duty is not merely to win cases, but to build sustainable justice. At JBD Law Firm, we believe the law should empower, not burden.”