Audit & Accounting

~THB 29B audit, accounting; Big 4 ~55% (Deloitte, EY, KPMG, PwC) dominate listed, MNC; FAP, SEC regulate; TFRS converges with IFRS

Last updated: Live coverage

Reports in this sector

Market profiles

Cited sources

Primary-grade share

64%

Key statistics

Public reference figures, each linked to source-level context.

FY2024

~THB 29B

Thai audit, accounting services market

FAP, SEC, Big 4 Thailand, DBD

FY2024

~55%

Big 4 audit market share

Big 4 Thailand disclosures, SEC approved-auditor list

FY2024

~60,000

Registered Thai CPAs

FAP / TFAC CPA registry

FY2024

10-year

SEC mandatory audit-partner rotation

SEC Thailand, FAP

FY2024

~22%

Local Thai mid-tier, boutique share

FAP, DBD, Insight triangulation

Market profiles in this sector

4 free profiles tied to reports, filings, regulations, and source-backed context.

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Company/operator

Deloitte Thailand

Big 4 audit and advisory firm in Thailand; strong in financial-services audit, risk advisory, and government consulting.

4 reports

Company/operator

EY Thailand (Ernst & Young)

Big 4 audit and advisory firm in Thailand; prominent in consumer, retail, and technology-sector audit mandates.

3 reports

Company/operator

KPMG Thailand

Big 4 audit and advisory firm in Thailand; known for industrial, energy, and real-estate sector audit mandates.

3 reports

Company/operator

PricewaterhouseCoopers Thailand (PwC)

Big 4 audit and advisory firm in Thailand; statutory auditor for major SET-listed companies and MNC subsidiaries.

3 reports

Available reports

Thailand Audit & Accounting Market Intelligence

Thai audit, accounting ~THB 29B. Big 4 ~55% (Deloitte, EY, KPMG, PwC) dominate listed, MNC audits. FAP, SEC regulate; TFRS converges with IFRS.

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Full sector report

Thailand Audit & Accounting Market Intelligence

14 min read · 2026 Edition

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