Bangkok remains Southeast Asia’s critical hub for commerce and investment. The top law firms in 2025 offer sophisticated legal services essential for successful business structuring, large-scale investment, real estate transactions, and international expansion. They are distinguished by high rankings from global legal authorities and specialized local expertise.
Here are the top-rated legal advisors in Bangkok, categorized by their primary strength:
Tier 1: Global Network & Corporate Transaction Leaders
These international and regional giants consistently dominate the market for M&A, capital markets, and complex regulatory compliance.
1. Baker McKenzie
- Core Expertise: Large-Scale M&A, Banking & Finance, Global Compliance, and Tax.
- Expansion Focus: The definitive choice for global conglomerates. Provides seamless, multi-jurisdictional legal and tax strategies, ensuring compliance and transactional security across borders.
- Key Advantage: Unmatched global network and resources, often ranked Band 1 for corporate and real estate work.
2. A&O Shearman
- Core Expertise: Capital Markets, High-Value M&A, Private Equity, and Corporate Restructuring.
- Expansion Focus: Highly active on high-value inbound and outbound transactions, leveraging its elite international network. A market leader in finance and capital markets work.
- Key Advantage: Top-tier expertise for financial institutions and complex, high-stakes corporate deals.
3. Tilleke & Gibbins
- Core Expertise: Corporate/M&A, Intellectual Property (IP), Regulatory Compliance, and Foreign Direct Investment (FDI).
- Expansion Focus: A premier regional firm specializing in navigating the Foreign Business Act (FBA) and maximizing BOI Promotion incentives. Strongest regional presence for IP protection.
- Key Advantage: Deepest local and regional knowledge, with a proven history of success in litigation and compliance.
4. Linklaters (Thailand) Ltd
- Core Expertise: High-Value M&A, Capital Markets, Joint Ventures, and Project Finance.
- Expansion Focus: Highly accomplished in advising both leading Thai and global clients on inbound and outbound transactions, utilizing its international network for complex regional mandates.
- Key Advantage: Renowned for sophisticated capital markets and M&A advisory.
Tier 2: Real Estate, Specialized Sector & Accessible Services
These firms offer specialized, high-quality legal support critical for property investors, developers, and growing foreign businesses.
5. Chandler MHM (Corporate Real Estate & Infrastructure)
- Core Expertise: Project Finance, Energy & Infrastructure, Corporate Real Estate, and M&A.
- Specialization Focus: Highly regarded for its expertise in large-scale infrastructure projects and transactions in heavily regulated sectors.
- Best For: Investors in energy, infrastructure, and complex corporate real estate development.
6. Siam Legal International (Property & Expat Services)
- Core Expertise: Personal Immigration (Visas/Work Permits), Property Law, and SME Business Setup.
- Specialization Focus: The most recognized firm for expat and individual legal needs. Provides transparent, fixed-fee services for essential Property Due Diligence and securing Thai residency.
- Best For: Individuals, families, and SMEs requiring reliable, accessible guidance on property purchases and residency.
7. Kudun and Partners (Mid-Market & Growth)
- Core Expertise: Mid-Market M&A, Capital Markets, Real Estate Advisory, and Fintech Advisory.
- Specialization Focus: A dynamic, modern independent Thai firm that excels in corporate structuring for SMEs and entrepreneurs focused on scaling operations and funding.
- Best For: Growth-focused businesses and mid-market investors seeking commercially astute advice.