Thailand
T3 — The True Thailand: Trade, Tourism and Thai People
Professionals collaborating in a modern Bangkok office setting, representing Thailand's professional and business-services sector

PROFESSIONAL & BUSINESS SERVICES

Professional & Business Services in Thailand

Explore the advisory, legal, accounting, digital, talent, research and corporate-support capabilities that help organizations establish, operate and grow in Thailand.

Last reviewed: 7 September 2026

Before You Continue

This page is a sector orientation guide, not legal, tax, immigration or investment advice. Selecting a provider requires your own independent due diligence, and any regulated claim or current requirement should be confirmed directly with the responsible authority before you rely on it.

Review the Foreign-Investor Pathway

Five professional advisers reviewing strategy documents and charts around a table in a Bangkok office

One Advisory Layer, Many Disciplines

Consulting, legal, tax, HR and digital specialists frequently work side by side on the same client engagement — this chapter maps each discipline separately so you know which one you actually need.

EXECUTIVE OVERVIEW

Where Professional Services Fit

Professional and business services sit behind almost every other step in this site's sector chapters: a manufacturer registering a factory, a healthcare investor structuring a joint venture, or a fashion brand opening its first Thailand store all eventually need a company registered, tax filings made, contracts reviewed, and staff hired and paid correctly. This chapter maps that advisory layer — market entry, ongoing operations, compliance and growth — rather than any single client industry.

  • Services share of GDP59.15% (2024, World Bank)
  • Standard corporate income tax20% of net profit
  • Employer/employee social-security rate5% each, as of Jan 2026
  • BOI-promotable services scopeIBC, digital infra, R&D, training — not all services

Regulated professional practice — appearing in court, signing an audit opinion, or acting as a licensed insurance or securities intermediary — requires a specific license or professional-council membership under Thai law. General management consulting, market research, recruitment and most digital/creative services do not carry that same licensing regime, though the company providing them still needs ordinary business registration and, for foreign-owned firms, Foreign Business Act clearance where applicable.

Services, Value Added (% of GDP), 2024

59.15%

World Bank national-accounts data classify 59.15% of Thailand's 2024 GDP as services value-added, up from 58.46% in 2023. This is a national-accounts value-added measure, not a headcount, revenue or business-registration figure.

World Bank national accounts data (as compiled by TheGlobalEconomy.com) — accessed 7 September 2026

Registered Juristic Entities on DBD's Corporate Registry

Over 1.8 million active entities (DataWarehouse, as of a 2024 snapshot)

The Department of Business Development (DBD), Ministry of Commerce, maintains Thailand's corporate registry covering partnerships, private and public limited companies, joint ventures and registered branches of foreign firms. This is a stock of registered entities, not an annual new-registration count.

Department of Business Development (DBD), Ministry of Commerce — accessed 7 September 2026

Overall GDP Growth Context, Q3/2025

See NESDC's own quarterly release for the exact figure

Thailand's National Economic and Social Development Council (NESDC) publishes quarterly GDP performance and outlook reports. This page cites NESDC as the authoritative source rather than restating a specific quarterly growth number here.

Office of the National Economic and Social Development Council (NESDC), Thai Economic Performance in Q3 of 2025 and the Outlook for 2025-2026 — accessed 7 September 2026

This page does not publish a single "services sector contribution" figure. Value-added share of GDP, the count of registered juristic entities, employment share, FDI into services activities, and the services component of the balance of trade are five different measurements with different definitions, periods and publishers — each should be read individually. FDI-into-services and services-trade-balance figures specific to professional services were not independently verified to a specific, citable figure during this research pass and are intentionally not stated here — Verification required.

Four colleagues reviewing logistics and operations plans together around a table

THE PROFESSIONAL-SERVICES ECOSYSTEM

How These Services Connect

Professional services rarely stand alone — they connect across a business's entire lifecycle in Thailand, from first market-entry questions through to ongoing growth advisory. T3 does not recommend or certify any individual provider; the map below shows how the categories in this chapter typically connect.

EXPLORE

Service Categories

Two colleagues reviewing a certification binder together at a desk

Verify Before You Engage

Credentials, engagement terms and data-handling practices are all things a buyer can and should verify directly — directory inclusion here is not a T3 endorsement.

DUE DILIGENCE

How to Choose and Verify a Provider

Before engaging any professional-services provider, buyers typically confirm the following. T3 does not certify, audit or endorse any specific provider.

Not an Endorsement

Directory inclusion, editorial coverage or partnership recognition does not constitute a T3 endorsement or guarantee of a provider's services.

Engagement Models & Requesting Proposals

Hourly / Time-Based

Billed by the hour — common for legal advisory, litigation, and open-ended advisory work.

Fixed Fee

A single agreed price for a defined scope — common for company registration and standard contract drafting.

Retainer

A recurring fee for ongoing availability — common for monthly bookkeeping or outsourced HR.

Success-Linked

Fee tied to a defined outcome — more common in recruitment than in regulated advisory work, where success fees can raise independence concerns.

Project-Based

A fee tied to a defined project with milestones — common for systems implementation and BOI application projects.

This page does not publish market-average fee figures for any service category — fee levels vary widely by firm tier, complexity and scope. Request a written, scoped quotation from each prospective provider instead.

  • Define the specific scope, deliverables and timeline you need before requesting proposals.
  • State your entity type, activity and any regulatory context (e.g. BOI status, foreign-ownership structure).
  • Ask each provider to confirm who will actually perform the work and their credentials/licenses.
  • Request the fee basis and what would trigger additional charges.
  • Ask about data-handling practices and whether a data-processing agreement is available.
  • Confirm professional-indemnity insurance coverage where the engagement carries meaningful liability exposure.

See the Key Players directory below for a fuller, verified list of professional-services firms with Thailand operations.

GROW

Economic Intelligence, Consulting & Creative Services

Two analysts reviewing economic and market-intelligence charts on paper and a laptop

Research Before Strategy

Market and economic research is not a licensed profession in Thailand — verifying a provider's track record matters more than checking a credential.

Market & Economic Intelligence

Economic and market intelligence — research, data analysis and strategic consulting — sits alongside advertising, branding and creative services as two distinct but often co-purchased growth capabilities. Neither is a licensed profession in Thailand, so verifying a provider's track record (see How to Choose a Provider above) matters more than checking a credential.

Market & Economic Research

Desk and primary research, competitor analysis and economic-data interpretation to support investment and growth decisions.

Translation & Localization

Certified/sworn document translation (commonly required for visa, legal and immigration filings) and broader marketing/product localization.

A creative team reviewing photography and mood-board layouts together

Claims Carry Consumer-Protection Rules

Advertising content is subject to the Consumer Protection Act's rules against false or exaggerated claims, in addition to any platform-specific advertising policy.

Advertising, Branding & Creative

Advertising content in Thailand is subject to the Consumer Protection Act's rules against false or exaggerated claims, administered by the Office of the Consumer Protection Board, in addition to platform-specific advertising policies — a factor worth confirming with any creative or media-buying partner.

Brand Strategy & Creative Production

Brand development, creative production and campaign design for the Thai market.

Media Buying & Digital Marketing

Media planning and digital/performance marketing, subject to the consumer-protection advertising rules above.

Four advisers in discussion at a boardroom table with the Bangkok skyline at dusk behind them

A Sequence, Not a Single Step

Ownership rules, BOI eligibility, registration, licensing and work authorization are separate approvals — meeting one does not automatically satisfy another.

MARKET ENTRY

The Foreign-Investor Pathway

This sequence is general orientation, not legal, tax or immigration advice, and not every stage applies to every business. It presents a decision pathway, not a guarantee of any registration, license, BOI promotion, visa or work-permit outcome.

Four colleagues reviewing incorporation and site-planning documents together

Registration, Permission, Promotion and Authorization

Company registration, Foreign Business Act permission, BOI facilitation and visa/work-permit authorization are four distinct processes, each with its own approving authority.

ESTABLISH

Company Setup, Visas & Work Permits

Four distinct government processes are often bundled together in casual conversation but are legally and procedurally separate: company registration, Foreign Business Act permission, BOI facilitation, and visa/work-permit authorization. Meeting one does not automatically satisfy another.

Company Registration

Registering a legal entity with DBD — required for any Thailand-incorporated business, foreign-owned or not.

Foreign Business Act Permission

A separate approval required only if the specific activity is restricted for foreign majority ownership under the Foreign Business Act.

BOI Facilitation

A distinct promotion status granted only for BOI-eligible activities, which can ease foreign-ownership restrictions and provide a facilitated visa/work-permit process.

Visa & Work Authorization

Separate individual authorizations required for each foreign staff member, regardless of the company's own registration or BOI status.

No company-formation agent, BOI facilitator or immigration consultant can guarantee registration approval, Foreign Business Act permission, BOI promotion, a visa, or a work permit.

Three advisers discussing an investment-promotion opportunity around a table

Activity-Specific, Never Automatic

BOI eligibility depends entirely on the current promoted-activity list and the specific project's own conditions — confirm directly with BOI before relying on any incentive.

INCENTIVES

BOI & Investment Advisory

BOI eligibility depends entirely on the current BOI activity list and conditions for the specific activity applied for — it is never automatic for "professional services" as a category.

  • International Business Centers (IBC) — covering general business management, procurement, R&D, technical support, marketing, treasury-center financial management, and other qualifying support-service functions for associated enterprises.
  • Digital infrastructure — cloud services, data centers, and AI-supporting digital infrastructure are a stated BOI investment-promotion priority for 2026.
  • Research & development (R&D) — including for software and digital platforms, a distinct category from general IT consulting.
  • Training activities — eligibility depends on the specific program meeting BOI's training-activity conditions.
  • Regional/shared-service operations — shared-service-center and certain BPO structures serving a regional or global group can fall within IBC or related promoted categories.

Ordinary management consulting, bookkeeping, general recruitment, and most creative/marketing services delivered commercially are not on BOI's promoted-activity list in their own right.

BOI's promoted-activity list, conditions and incentive tiers change over time. Confirm current eligibility directly with BOI or a BOI-specialist adviser before assuming a specific activity qualifies.

Check Current BOI Eligibility
Four finance professionals reviewing tax and audit reports together

Every Figure Carries Its Own Source

Thai tax rates and thresholds change, sometimes via time-limited decree — each figure in this chapter carries its own publisher and "as of" date.

COMPLY

Taxes, Accounting & Audit

Every figure below carries its own "as of" date and source. Thai tax rates, thresholds and reliefs change, sometimes via time-limited Royal Decree extensions — always verify the current rate directly with the Revenue Department or a qualified tax adviser.

Three recruitment and HR consultants in discussion around a table

Know Who the Legal Employer Is

In an outsourced-staffing or employer-of-record arrangement, the staffing firm — not the client company — may be the legal employer. Confirm this explicitly before engaging.

HIRE

Recruitment, HR & Talent

Recruitment and HR services in Thailand range from contingency and retained search through to fully outsourced HR-function administration. Employment-law compliance sits with whichever party is the legal employer of record — the client company, or, in an outsourced-staffing arrangement, the staffing firm itself — so confirming that distinction before engaging a provider matters as much as the placement itself.

Recruitment & Executive Search

Contingency, retained and executive-search engagements, typically priced on a success-linked or retainer basis (see Engagement Models above).

HR Outsourcing

Payroll administration, benefits administration and broader HR-function outsourcing for companies that do not want to build an in-house HR team immediately.

Staffing & Employer-of-Record Arrangements

Temporary-staffing and employer-of-record structures shift legal-employer status to the staffing firm — confirm this explicitly in the contract.

Training & Professional Education

Corporate training, executive education (see Sasin, Chulalongkorn Business School and NIDA below) and professional-certification preparation.

A manager reviewing data with an analyst in a digital operations center at night

Infrastructure Promotion Is Not Blanket Promotion

Cloud and data-centre infrastructure is a stated 2026 BOI priority, but general IT consulting and software development are not automatically BOI-eligible on that basis alone.

OPERATE & GROW

Digital Services, BPO & Technology

Thailand's IT-consulting and business-process-outsourcing base serves both the domestic market and, increasingly, regional or global delivery mandates. Cloud, data-centre and AI-infrastructure investment is a stated 2026 BOI promotion priority, but general IT consulting and software development services are not automatically BOI-eligible on that basis alone — see BOI & Investment Advisory above for the specific eligibility conditions.

IT Consulting & Systems Integration

IT strategy, systems-integration consulting and custom software development.

Cybersecurity & Cloud Services

Security assessment, managed security services, and cloud/data-centre services — an area of active BOI promotion interest for the infrastructure layer specifically.

BPO & Shared Services

Finance-and-accounting BPO and HR shared services, often serving a regional or global client base from a Thailand delivery centre.

Contact-Centre Operations

Inbound/outbound contact-centre services for domestic and international clients.

INSTITUTIONS & NETWORKS

Government Bodies, Professional Institutions & Associations

Organized by function. Each entry states only its verified official mandate — no agency or association below is described as regulating, licensing or representing beyond what its own official role confirms.

Regulators, Councils and Chambers Are Distinct

A government regulator, a licensing council and a business chamber play three different roles — this chapter organizes each by its actual official function.

Showing 23 of 23 entries

Investment & Trade

Thailand Board of Investment (BOI)

Thailand's national investment-promotion agency — grants tax and non-tax incentives for promoted activities and coordinates investor support through offices across Asia, Europe, Australia and the US.

Commerce & Registration

Department of Business Development (DBD)

Handles company registration, corporate filings, business licensing records and business-development services in Thailand.

Investment & Trade

Department of Trade Negotiations (DTN)

Negotiates and administers Thailand's free trade agreements and publishes official FTA status information.

Tax & Finance

Revenue Department

Administers corporate income tax, VAT, withholding tax and taxpayer registration.

Labor & Immigration

Department of Employment (DOE)

Issues work permits for foreign employees, including school and university staff.

Labor & Immigration

Immigration Bureau

Manages visa issuance and extensions for foreign residents, education-sector employees, students, retirees and long-stay visa holders.

Tax & Finance

Bank of Thailand (BOT)

Central bank; sets and publishes the foreign-currency remittance/FET-form framework used for foreign condominium purchases.

Digital & Data

Electronic Transactions Development Agency (ETDA)

The agency responsible for electronic-transactions governance, digital trust, and infrastructure and workforce goals supporting Thailand's digital-economy targets.

Digital & Data

Personal Data Protection Committee (PDPC)

The regulatory body administering Thailand's Personal Data Protection Act (PDPA), issuing guidelines, enforcing compliance and setting the data-governance framework technology and platform businesses operate under.

Business Associations

Federation of Thai Industries (FTI)

Thailand's apex industrial federation — represents manufacturers across every major industry group (48 industry clubs, including dedicated Food Processing and Electrical & Electronics industry clubs) and advises on industrial policy.

Business Associations

Thai Chamber of Commerce and Board of Trade of Thailand (TCC / Board of Trade)

Thailand's principal apex chamber — represents the national trade and commerce community, operates a dedicated Agriculture & Food Center, issues export Certificates of Origin, and engages government on cross-sector business policy.

Tax & Finance

Securities and Exchange Commission (SEC)

Regulates securities businesses and licensed securities intermediaries in Thailand.

Tax & Finance

Office of Insurance Commission (OIC)

Independent regulator, established 2007, licensing and regulating insurance brokers, agents and insurance businesses in Thailand — including private health-insurance products and insurers.

Labor & Immigration

Social Security Office (SSO)

Ministry of Labour agency administering mandatory employer/employee social-security contributions and benefits, including the Social Security Scheme's healthcare benefit for covered private-sector employees.

Professional Councils

Thailand Federation of Accounting Professions (TFAC)

The official accounting standard-setting and licensing body under the Accounting Professions Act B.E. 2547 (2004) — formerly the Federation of Accounting Professions (FAP), renamed 2019. Awards the CPA designation and mandates membership for auditors and bookkeepers.

Professional Councils

Lawyers Council of Thailand

The official regulatory body for licensed lawyers in Thailand — also known as the Thai Bar — one of the country's professional regulatory councils under the Federation of Professional Councils of Thailand.

Business Associations

The Advertising Association of Thailand (AAT)

An industry association for Thailand's advertising sector, providing an agency directory, regulatory updates and training programs.

Business Associations

Thailand Management Association (TMA)

A non-profit management-development institution, established 1964, with 600+ corporate members — offers executive training, consulting and a business-networking platform connecting current and future business leaders across industries.

Business Associations

Thai Institute of Directors Association (Thai IOD)

A not-for-profit membership organization, established 1999, promoting director professionalism and corporate governance in Thailand through training, certification and director-development programs.

Business Associations

Personnel Management Association of Thailand (PMAT)

A professional HR association with 2,500+ members, providing training, seminars, consulting and networking for HR practitioners across private, public and state-enterprise organizations — also the organizer of the annual Thailand HR Tech conference.

Universities & Training

Sasin School of Management, Chulalongkorn University

Thailand's first internationally accredited business school, established 1982, offering MBA, Executive MBA and executive-education programs; AACSB and EQUIS accredited.

Universities & Training

Chulalongkorn Business School (Faculty of Commerce and Accountancy)

Thailand's longest-established business school, offering undergraduate through doctoral programs in business, accounting and finance; AACSB accredited.

Universities & Training

National Institute of Development Administration (NIDA)

A graduate-only public institute, established 1966, with a strong focus on management, economics and public administration.

KEY PLAYERS

Professional Services Firms in Thailand

A small, verified list of professional and business-services firms with a confirmed Thailand presence — international networks' Thailand member firms, established law firms, and specialist advisory practices. This is orientation only: a starting point for your own due diligence, not a recommendation.

Not an Endorsement

T3 does not recommend, endorse, rank or represent any firm listed here, and receives no fee for inclusion. This directory is for orientation only. Verify credentials, licensing and suitability directly with any firm before engaging it, and confirm that the services you need are ones it is licensed to provide in Thailand.

Showing 14 of 14 entries

Legal

Baker McKenzie (Thailand)

An international law firm with more than four decades in Thailand, advising on corporate, tax, IP and dispute matters; recently relocated its Bangkok office to One Bangkok.

Legal

Tilleke & Gibbins

A Southeast Asian regional law firm headquartered in Bangkok, founded in 1890, with offices across the region and 230+ attorneys.

Accounting & Audit

PwC Thailand

A member firm of the PwC global network, providing audit, tax and consulting services from Bangkok; PwC states a Thailand presence of more than 67 years.

Accounting & Audit

KPMG in Thailand

A member firm of KPMG International, providing audit & assurance, tax, legal, consulting and deal-advisory services.

Accounting & Audit

Grant Thornton Thailand

A member firm of Grant Thornton International established in Bangkok in 1991, with more than 200 professional staff providing assurance, tax, advisory and business-risk services.

Accounting & Audit

Forvis Mazars in Thailand

Formerly Mazars (Thailand) Ltd.

An audit, accounting, tax and legal advisory practice in Bangkok, operating as Forvis Mazars following Mazars' international merger with Forvis.

Tax Advisory

EY Thailand

A member firm of the EY global organization, providing assurance, tax, consulting and transaction-advisory services.

Tax Advisory

Deloitte Thailand

Deloitte ICS (Thailand) Co., Ltd.

Operating via Deloitte ICS (Thailand) Co., Ltd. as part of the Deloitte network, providing audit & assurance, tax & legal, strategy/risk/transactions, and technology-transformation services.

Management Consulting

McKinsey & Company (Thailand) Co., Ltd.

McKinsey's Bangkok office, established in 1997, serving Thai and multinational organizations across financial services, telecommunications, consumer, energy and the public sector.

Management Consulting

Boston Consulting Group (Thailand) Co., Ltd.

BCG's Bangkok office, opened in 1994, supporting strategy, market entry, organizational and digital-transformation engagements for Thai and regional clients.

Corporate Services & Company Formation

Acclime Thailand

A Bangkok-based provider of company registration, corporate secretarial, accounting, tax and HR advisory services for foreign-owned businesses in Thailand.

HR & Recruitment

Robert Walters Recruitment (Thailand) Ltd.

A Bangkok-based recruitment agency established in 2008, specializing in permanent placement across multiple industries and functions.

HR & Recruitment

Michael Page Thailand

Michael Page International Recruitment (Thailand) Ltd.

A PageGroup recruitment brand that established a Bangkok office in 2016, providing recruitment and headhunting services across professional sectors.

Market Entry Advisory

Dezan Shira & Associates

A pan-Asia market-entry, tax, accounting and legal advisory firm; its Thailand presence operates through a local alliance partner rather than a wholly-owned Dezan Shira office.

Partner-led presence: delivered in Thailand via a local alliance partner, not a Dezan Shira-owned entity.

Source: T3 editorial inclusion criteria · Accessed 7 September 2026 · A firm is listed only once its legal or commonly used name, official website and the specific nature of its Thailand presence (registered Thai entity, branch, international-network member firm, or partner-led) were each confirmed against a dated, named source — normally the firm's own official site.

NETWORK

Events & Conferences

A search for current, verifiable professional-services-relevant events in Thailand found few genuinely upcoming, credibly-sourced options as of this review date. The four below are included because their organiser, dates and status could each be confirmed against an official source; most have already concluded and are shown as recent editions rather than presented as upcoming — no future date is estimated or guessed where an organiser has not yet published one.

November 2026 (secondary sources disagree on the exact window — one indicates 19–22 November, another 26–29 November; confirm directly with the organizer before planning to attend)Confirmed Upcoming

Money Expo 2026 Bangkok (Year-End Edition)

Thailand's long-running financial and investment exhibition, in its 9th Bangkok year-end edition, covering banking, wealth management, insurance and investment services. Search-verified only; exact dates conflicted across secondary listings and were not independently confirmed against the organizer's own primary site during this research pass.

26–28 August 2026 (concluded) · next edition's exact dates not yet confirmed by the organiserMost Recent Edition — Concluded

Thailand Focus 2026

The Stock Exchange of Thailand's flagship annual investment conference, marking its 20th edition in 2026, bringing together listed companies and global institutional investors through plenary sessions and one-on-one meetings on Thailand's capital market and investment outlook.

26–28 August 2026 (concluded) · next edition's exact dates not yet confirmed by the organiserMost Recent Edition — Concluded

Techsauce Global Summit 2026

Southeast Asia's technology and innovation summit under the theme "The Race to the Next," featuring hundreds of speakers and exhibitors across AI and digital-transformation tracks. Included for its relevance to management and digital-transformation consulting; broader in scope than this chapter's core legal, accounting and HR advisory focus, so only partially relevant.

16–17 June 2026 (concluded) · next edition's dates have not yet been announcedMost Recent Edition — Concluded

Thailand HR Tech Conference & Exposition

PMAT's annual HR-technology conference and exhibition. Included as a recurring, verifiable event from an established HR professional body — not presented as currently upcoming. Organizer and most recent edition confirmed via PMAT's own event site; the next edition was not yet published as of this review.

A wider search covering franchise, SME, sustainability, accounting-body and foreign-chamber conferences in Thailand for 2026 — including Thailand Franchise & Business Opportunities (TFBO), Franchise Expo Thailand by Smart SME Expo, the Federation of Accounting Professions' 2026 annual meeting, an IOD Thailand National Director Conference, Digital Thailand Big Bang, a 2026 Sustainability Expo, and flagship AMCHAM, BCCT, GTCC and JFCCT conferences — either found events too tangential to this chapter's legal, accounting, tax, HR and consulting focus, or could not confirm official organiser-published dates to this page's verification standard, as of 7 September 2026. This chapter will be updated as further events are confirmed.

Sources & Methodology

This page draws its claims from Thailand's own government agencies and professional/industry councils wherever a direct official source could be identified, supplemented by reputable secondary tax- and HR-advisory guides for time-sensitive rate figures where the primary government page itself was not directly parsed during this research pass — each such case is flagged in its own citation with an instruction to reconfirm against the named primary regulator. No statistic, tax rate, government mandate, association role, or professional-services firm on this page is invented.

Last reviewed: 7 September 2026

A Thai business professional reviewing documents at her desk, with the Bangkok skyline at dusk behind her

DO BUSINESS IN THAILAND WITH GREATER CLARITY

Connect the Right Expertise to Your Thailand Strategy

Explore official pathways, sector information and professional-support categories before selecting independent advisers for your specific needs.

Send an Inquiry

Whether you need a market-entry pathway, tax/compliance support, legal advisory, or help finding the right professional-services category for your plans, T3's central inquiry desk can help direct your question to the right place.

T3 does not guarantee company registration, Foreign Business Act permission, BOI promotion, a specific tax outcome, a visa, or a work permit for any inquiry submitted. This page provides general orientation only and is not legal, tax, accounting or immigration advice.