Integrity,
Strategy &
Results.
Our Commitment to Excellence
We encourage innovative legal thinking within our team while maintaining the highest ethical standards. By combining deep legal knowledge with a creative mindset, we’re able to offer not just answers—but impact.
Benny & Gunawan Law Firm (B&G) is a litigation-focused law firm established in 2018 and formally incorporated in 2022, based in Jakarta, Indonesia. We specialize in navigating complex legal disputes—ranging from commercial and constitutional cases to criminal, administrative, and employment litigation. As a firm rooted in the principles of integrity and precision, we are dedicated to delivering smart, strategic, and ethical legal solutions that truly serve our clients’ best interests.
Our approach is simple yet powerful: we listen closely, think deeply, and act decisively. With a team of seasoned professionals, B&G blends legal expertise with forward-thinking strategy. Every case is handled with meticulous care and a deep understanding of Indonesian law, allowing us to deliver real results where it matters most—whether in negotiation rooms, mediation tables, or courtrooms.
We are not just legal practitioners; we are legal partners—committed to walking with our clients through their most pressing challenges with clarity, confidence, and purpose. Our close ties with government institutions and the business community strengthen our ability to navigate the legal landscape effectively and advocate with impact.
Who we Are
Founder & Managing Partner
Benny Irfan Siahaan, S.H., M.H., C.L.A. is the Founder of B&G Law Firm (est. 2018) as advocate and legal consultant at B&G Law Firm. He is an alumnus of the Christian University of Indonesia, with Bachelor’s and Master’s degrees in Law. Benny has extensive professional experience in the legal field, having served as an intern at UKS & Partners Law Firm, Assistant Attorney at Alparo & Co, and Head of the Legal Department at PT Bangun Globalindo Perkasa (Holding Company of PT Global Indonesia Asia Sejahtera (Group) and PT Bumi Lancang Kuning Pusaka (Group), as well as Head of the Legal Department at PT Batara Surya Semesta (Group). He demonstrates exceptional expertise in corporate law, business law, litigation, legal auditing, and bankruptcy.
Member & Licenses
Advocate License (Indonesian Advocates Association – PERADI)
Legal Auditor License (Jimly School of Law and Government)
Gunawan Simangunsong, S.H., M.H. is the Founder of B&G Law Firm (est. 2018) and a seasoned advocate, legal consultant, and mediator known for his professionalism and integrity in representing clients. He earned his Bachelor of Laws from the Christian University of Indonesia and a Master of Laws from University of Indonesia. His professional experience includes roles as Associates at SBS & Associates, Industrial Relation at PT Best Agro International, Senior Associate at Refly Harun and Partners, and Assistant Legal Manager at OPPO Indonesia. Gunawan has extensive expertise in criminal and civil litigation, industrial relations, judicial review, election disputes, state administrative cases, tax disputes, and immigration matters, representing both individual and corporate clients, domestic and international.
Member & Licenses
Advocate License (Indonesian Advocates Association – PERADI)
Mediator License (FHP Mediasi Indonesia)
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Whether you’re facing a regulatory challenge, a business dispute, or a constitutional matter, we stand beside you as your committed legal partner. With B&G, you’re not just hiring a law firm—you’re gaining a force for justice
With B&G, you’re not just hiring a law firm—you’re gaining a force for justice.