The top law firms in Bangkok cater to two distinct client profiles: large multinational corporations needing complex regulatory and M&A expertise, and expats/SMEs needing practical, reliable assistance with visa, property, and personal matters.
These firms are recognized for their trustworthiness, specialized expertise, and multilingual service, ensuring reliable legal support across business, visa, and property law.
1. Tilleke & Gibbins (Corporate & Regional Leader)
Best for: Large-Scale Corporate Investment, Intellectual Property, and Litigation.
Tilleke & Gibbins is widely regarded as one of Southeast Asia’s premier full-service law firms, consistently achieving top-tier rankings in 2025 legal guides (Chambers and Legal 500) for their work in Corporate/M&A and Dispute Resolution.
- Business Focus: Advising multinational corporations on complex Foreign Business Act (FBA) compliance, BOI Promotion, and high-stakes commercial litigation.
- Specialization: Highly recognized as a regional leader in Intellectual Property (IP) prosecution and litigation.
- Trust Factor: Known for its deep bench of highly specialized Thai and international lawyers, making it the preferred choice for sophisticated corporate legal work.
2. Baker McKenzie (Global Corporate Presence)
Best for: Mergers & Acquisitions (M&A), Tax, and Global Compliance.
Baker McKenzie’s Bangkok office is a major legal hub in the region, offering the global resources and integrated service model of one of the world’s largest law firms. They were notably named Law Firm of the Year in the Thailand Law Firm Awards 2025.
- Business Focus: Handling the full range of domestic and cross-border transactions, Corporate Restructuring, and Tax issues for large global conglomerates.
- Specialization: Strong expertise in highly regulated sectors like Banking & Finance and Capital Markets.
- Trust Factor: Provides the established processes and security of a globally integrated firm, essential for managing multi-jurisdictional legal risks.
3. Siam Legal International (Expat & Individual Specialist)
Best for: Visa, Property Conveyancing, and Family Law for Foreigners.
Siam Legal is one of the most visible and established full-service law firms explicitly catering to the needs of expatriates, retirees, and SMEs in Bangkok and across Thailand.
- Visa Focus: Expert assistance with Work Permits, Retirement Visas (O-A), Marriage Visas, LTR Visas, and related US/UK visa services.
- Property Focus: Specializing in Property Due Diligence, Title Search, Contract Review, and Transfer of Title for condominiums, houses, and land leases.
- Service Model: Known for transparent, fixed-fee assistance and dedicated, multilingual teams that simplify complex Thai bureaucratic processes for international clients.
4. Chandler MHM (Energy & Infrastructure)
Best for: Specialized Project Finance, Energy, and Regulatory Compliance.
Chandler MHM (formerly Chandler and Thong-Ek) is a consistently top-ranked firm, particularly strong in highly regulated sectors and complex project financing.
- Business Focus: Advising on major Infrastructure & Project Finance, Energy & Natural Resources projects, and high-level Regulatory Compliance.
- Specialization: Deep regulatory knowledge and a strong track record in complex financing and corporate structuring within specialized sectors.
- Trust Factor: High reputation for handling sophisticated transactions involving government entities and large-scale industrial projects.
5. Kudun and Partners (Emerging Leader for M&A and Real Estate)
Best for: Mid-Market M&A, Real Estate, and Start-up/Fintech Advisory.
Kudun and Partners is a prominent mid-sized Thai firm known for its dynamic approach, strong M&A practice, and dedicated service to emerging sectors and mid-market transactions.
- Business Focus: Experienced in Mergers & Acquisitions, Capital Markets, and providing advice to Fintech and Start-up companies.
- Property Focus: Offers strong services in Real Estate transactions, particularly involving large corporate developers.
- Service Model: Offers a partner-led approach and is recognized for its growing influence in the market, often handling complex matters previously reserved for larger firms.