What Siam Legal does

Siam Legal International (legally Siam Legal (Thailand) Co., Ltd.) is a privately held, full-service Thai law firm founded in 2004 and headquartered in Bangkok. The firm operates the largest legal network in Thailand across four offices — Bangkok, Chiang Mai, Phuket, and Pattaya — and serves three primary client segments: foreign nationals and expats requiring Thai immigration and visa services, foreign property investors navigating Thailand's land-ownership restrictions, and international businesses establishing or acquiring Thai operations. Secondary segments include international families requiring cross-border family law support and Thai nationals seeking outbound visas to the US, UK, Canada, Australia, and Schengen states.

The firm's service catalogue spans immigration (Thailand visas including Privilege/Elite, DTV, LTR, retirement, marriage, business; plus outbound US/UK/Canada/Australia/Schengen/New Zealand/Korea/Singapore visas), corporate and commercial law (company registration, BOI promotion, foreign business licensing, Treaty of Amity, M&A, accounting/tax), property law (due diligence, title search, contract review, transfer, escrow), family law (marriage registration, prenuptial agreements, divorce, child custody, adoption), litigation (civil, criminal, commercial, labor, cybercrime, debt collection, arbitration), and ancillary services (PDPA consulting, wills and probate, notary, certified translation and legalization, affidavits of foreign law, private investigation). The firm does not develop proprietary technology platforms and does not disclose AI/ML capabilities; its technology stack consists of standard website tooling (Google Analytics, Google AdWords remarketing) and a multilingual web presence including the Thai Legal Blog and US Visa Blog.

Siam Legal earns revenue through professional-services billings — primarily hourly rates and fixed project fees under a quote-based, pay-as-you-go model with free initial consultations offered for certain matters. The go-to-market combines content marketing and SEO, reputation-driven referrals, direct walk-in consultations across the four offices, and international phone support (including a US toll-free number). The firm claims to have served 3,650–12,000 clients (figures conflict across sources), defended 1,200+ cases, and recovered 500 million Baht in claims for clients. It is founder-/management-controlled with no disclosed institutional investors, no subsidiaries, and no M&A activity.

Name

Siam Legal

Legal name

Siam Legal (Thailand) Co., Ltd.

Website

https://siam-legal.com

Company type

Private

Founded year

2004

Operating status

Operating

Headcount range

51–100 employees

Short description

Siam Legal International is a privately held, full-service Thai law firm with four offices across Thailand, serving foreign nationals, property investors, and international businesses with immigration, corporate, property, family law, and litigation services.

Ownership category

akta.pro rank

Product category

Legal Services

NAICS

Offices of Lawyers (54111), All Other Legal Services (541199)

SIC

Services-Legal Services (8111)

akta.pro primary industry

Litigation Support & Expert Witness Services (BPAHALAG)

Keywords

• Legal advisory services
• Immigration law services
• Corporate legal services
• Property law services
• Litigation services

Headquarters

HQ city

Phuket

HQ country

Thailand

HQ region

Asia

Offices4 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D

Revenue model

1. Legal Consultation and Advisory Services: Billable hours for legal consultations, contract drafting, review, and advisory services across all practice areas including immigration, corporate, property, family, and litigation matters.
2. Visa and Immigration Application Services: End-to-end visa application handling for Thailand visas, US visas, UK visas, Canada visas, Australia visas, Schengen visas, and other international visa services. Revenue generated through service fees for application preparation and representation.
3. Litigation and Dispute Resolution: Legal representation in Thai courts for civil, criminal, commercial, and labor disputes. Representation fees, court filing fees, and related litigation costs billed to clients.
4. Property Transaction Services: Due diligence, title search, contract review, and title transfer services for property purchases in Thailand. Revenue from legal fees for real estate transactions serving both foreign and Thai clients.
5. Notary and Translation Services: Document notarization, certified translation (Thai/English), and legalization services for immigration, legal, and business documents. Additional service fees for Ministry of Foreign Affairs legalization processing.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels5 records

Core offering

Siam Legal is a full-service Thai law firm providing legal representation, advisory, and document services across immigration and visa applications, corporate and commercial law, property transactions, family law, and civil/criminal/commercial litigation. The firm additionally offers notary, certified translation, document legalization, PDPA compliance consulting, Thai wills and probate, and private investigation services, delivered by a multilingual team of Thai and foreign lawyers through four offices in Bangkok, Chiang Mai, Phuket, and Pattaya.

Product overview

Siam Legal International is a full-service law firm operating as a platform-plus-modules architecture. The core offering encompasses legal services, immigration and visa support, family law, corporate/business services, litigation and dispute resolution, and property legal services. Key products include Thailand Privilege (Elite) Visa, US/UK/Canada/Australia/Schengen visa services, family law (marriage, divorce, custody), business setup (company registration, BOI, accounting), litigation (civil, criminal, commercial), property services (due diligence, title search, contracts), PDPA consulting, Thai wills and probate, notary services, translation and legalization, cyber crime law, and private investigation. The firm serves individuals, families, and corporations across Thailand and internationally, with offices in Bangkok, Chiang Mai, Phuket, and Pattaya.

Differentiator

Problem solved

Functional benefit

Products and services

• Legal Services Full-service legal counsel covering litigation, contracts, compliance, cross-border transactions, power of attorney, private investigation, translation and legalization, personal data protection (PDPA), wills, probate, notary services, and franchise law for individuals and businesses in Thailand.
• Thailand Visa and Immigration Services Comprehensive visa support including Thailand visa, privilege/elite visa, DTV visa, LTR visa, retirement visa, marriage visa, tourist visa, business visa, and long-term residence visas for foreign nationals seeking to live, work, or invest in Thailand.
• Thailand Privilege Visa (Elite Visa) Long-term residence visa program offering Bronze (5-year), Gold, Platinum (10-year), Diamond (15-year), and Reserve (20-year) membership tiers for investors and frequent visitors to Thailand.
• US Visa Services Legal assistance for US visa applications including K1 (fiancé), K3 (spouse), tourist visa, E-2 investment visa, EB-5 visa, L-1 intracompany transfer, CR-1, IR-1, and adjustment of status.
• UK Visa Services Expert guidance for UK visa applications including fiancé visa, spouse visa, visitor visa, family visa, student visa, and vignette sticker transfer.
• Canada Visa Services Professional support for Canadian visa applications including spouse visa, tourist visa, student visa, family member visa, work visa, and dependent visa.
• Australia Visa Services Visa assistance for Australia including working holiday visa, tourist visa, spouse visa, fiancé visa, partner visa, family member visa, and student visa.
• Schengen Visa Services End-to-end assistance for Schengen visa applications covering multiple European countries including Germany, France, Italy, Spain, Portugal, Denmark, Belgium, Holland, and Sweden.
• Family Law Services Marriage registration, prenuptial agreements, divorce (contested and uncontested), child custody, child support, adoption, and child legitimation services for Thai and mixed-nationality couples and families.
• Business and Corporate Services Company registration (limited company, representative office, branch, partnership), Board of Investment promotion, US Treaty of Amity, foreign business licensing, accounting, tax, work permits, offshore structures, and mergers and acquisitions for foreign corporations and entrepreneurs establishing a Thai presence.
• Litigation Services Civil, criminal, commercial, and labor dispute representation including bankruptcy, debt collection, fraud, drug offenses, extradition, medical malpractice, personal injury, arbitration, and mediation.
• Property Legal Services Real estate legal services including due diligence, title search, contract review, transfer of title, escrow accounts, property taxes, and title deeds for condos, villas, houses, and land in Thailand.
• PDPA Consulting and Training Thailand Personal Data Protection Act compliance consulting, audits, and employee training services to help businesses meet data security requirements and avoid penalties.
• Thai Will and Probate Drafting of Thai last will and testament and probate/estate administration services to ensure proper distribution of assets in Thailand.
• Notary Services Notarization of documents by licensed Notarial Services Attorney including contracts, affidavits, power of attorney, and authentication of signatures for use in Thailand and abroad.
• Translation and Legalization Certified translation services (Thai/English) and document legalization for immigration, legal, and business purposes, including notarization and MFA authentication.
• Cyber Crime Law Services Legal support for cybercrime matters including online fraud, data theft, digital threats, and technology-related offenses affecting individuals and businesses.
• Affidavit of Foreign Law Sworn statements by qualified Thai legal experts explaining Thai laws for use in international legal proceedings, covering divorce, property, succession, criminal, and commercial law.
• Private Investigation Services Investigative services including surveillance, criminal records check, marriage/divorce verification, pre-marriage background check, missing person location, asset searches, due diligence, and computer forensics.

Quantifiable outcome

• 1,200+ cases defended successfully
• +3 more outcomes

Named customers9 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Scale indicators6 records

Recent moves4 records

Expansion highlights5 records

Direct peers

• Belaws (Thailand): Bangkok-based law firm focused on serving foreign nationals and expats in Thailand across immigration, property, family, and corporate matters. Closely comparable in target customer, multilingual service model, and visa/property practice mix.
• Silk Legal: Thailand law firm specializing in foreign-client services including visas, property, and company formation. Direct competitor in the expat/foreigner segment with similar bilingual delivery and SEO-driven lead generation.
• Chaninat & Leeds: Bangkok law firm focused on foreign clients for immigration, property, and family law in Thailand. Overlaps directly in cross-border family law, visa services, and US-outbound immigration practice.
• Tilleke & Gibbins: One of Thailand's largest independent law firms with deep IP, corporate, and regulatory practices serving multinational clients. Comparable in scale and broad service offering but skewed toward corporate rather than individual expat clients.
• Pisut & Partners: Thai law firm serving foreign nationals with property, visa, and family law services. Comparable in focus on individual expat clients and English-language delivery in the Bangkok market.
• Blumenthal Richter & Sumet: Bangkok-based international law firm with a Thailand-Germany focus and broad practice areas including corporate, real estate, and litigation. Comparable in serving foreign clients with cross-border matters.
• LawPlus: Thai law firm with strong IP, corporate, and technology practices serving international clients. Comparable in offering broad legal services to foreign businesses operating in Thailand.

Broad incumbents

• Baker McKenzie (Bangkok office): Global law firm with a large Bangkok office serving multinational corporate clients across regulatory, corporate, and cross-border matters. Competes for the same international-business segment but at much larger scale and broader portfolio.
• DLA Piper (Thailand): Global law firm with a Thailand presence focused on corporate, regulatory, and cross-border transactional work. Competes for foreign-business and FDI-related legal mandates in the same Bangkok market.

Regional players

• Rajah & Tann (Thailand): Singapore-headquartered regional law firm with a Thailand office serving ASEAN corporate clients. Comparable in providing cross-border legal services in Thailand but anchored to the regional corporate segment rather than individual expats.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/SiamLegal
• Facebookfacebook.com/SiamLegal
• LinkedInlinkedin.com/company/siam-legal

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Siam Legal