A Bangkok audit practice with roots going back to 1992 — incorporated as C&A Audit Office Co., Ltd. in 2015 — over 30 years serving Thai public & limited companies, financial institutions, and BOI-promoted enterprises. Every opinion is signed by the CPA partner who read the file.
Audit is a relationship with a deadline. It is also a relationship with a signature. For over thirty years we have worked with Thai companies — from family-owned trading houses across Bangkok to listed industrials and foreign-owned BOI enterprises — on the discipline of closing the books, reporting honestly, and meeting the regulator's eye.
We are not a brand name with a Bangkok office. We are a Bangkok office.
Our partners qualify under the Federation of Accounting Professions of Thailand; our opinions are accepted by the Revenue Department and the Thai SEC (approved since 2004). When you engage C&A, you engage the partner. That's the practice our founders built in 1992 — incorporated as C&A Audit Office Co., Ltd. in 2015 — and that's still the practice today.
Independent opinion on financial statements in line with Thai Financial Reporting Standards and International Standards on Auditing.
Planning, compliance, and dispute support across corporate income tax, VAT, withholding tax, and specific-business tax.
Full-cycle bookkeeping, monthly close, and advisory for founders establishing or scaling a Thai entity. Supports BOI-promoted companies.
Forensic accounting for civil and tax disputes, and certified TH↔EN translation of audited financials and corporate documents.
Firm and partner registrations under Thailand's statutory professional body for auditors and accountants.
Registered tax preparer and approved representative in Revenue Department examinations and appeals.
Approved auditor for specific categories of SET- and mai-listed companies under SEC Notification.
Two-partner office opens in Bangkok under the Federation of Accounting Professions.
Approved auditor for listed companies under SEC Notification.
Dedicated tax advisory launched; first PND.50 appeal won at Revenue Department.
Begins servicing foreign-invested BOI-promoted enterprises.
Relocated to 53 Narathiwas Ratchanakharin Road; capacity doubled, forensic workroom added.
Still a partnership. Still signing under our own names.
Send a brief about your entity, last fiscal year, and audit timeline. A partner returns a fixed-fee proposal within two business days, with no factory hand-offs and no follow-up by junior associates.