An accounting and audit firm with a CPA on every engagement

Grinner Accounting Co., Ltd. gives business owners confidence that their accounts and taxes are right, especially small and growing businesses that have fewer people and less time than large organisations.

Office building with a grid facade against a blue sky

Certified Public AccountantsFinancial statements signed by Grinner CPAs
5+ years of Big 4 experienceAudit careers at Big 4 firms
Registered bookkeepersWith the Federation of Accounting Professions
Standards-based reportingTFRS for PAEs and TFRS for NPAEs

Our story

We don't just record the numbers. We help you read your own financial statements and plan your tax.

We are an accounting, tax, audit and compliance partner for businesses in Thailand. We provide accurate, transparent financial services, shaped around how each business grows, so owners can focus on their own success.

Small businesses deal with accounting and tax with fewer people and less time than large companies. That is why a Certified Public Accountant advises every client, not only at the year-end close.

VisionTo be a leading accounting partner for businesses in Thailand, helping them grow with reliable, modern financial services.

MissionTo provide accurate, client-focused accounting and advisory services that make compliance simpler and help businesses succeed.

The Grinner group

All our services sit under the Grinner brand. Each engagement is provided by the group company responsible for that type of work.

Grinner Accounting Co., Ltd.

Statutory audits by Certified Public Accountants, and advisory work

Statutory audit Advisory Pre-IPO

The MTA Co., Ltd.

Bookkeeping, tax filing and business registration

Accounting & bookkeeping Company registration Business registration

Auditors and directors

Both directors are Certified Public Accountants who personally lead audits, reviews, agreed-upon procedures and accounting and tax advice.

Nuttapon Phusadeekunpaisan

ณัฏฐพล ผุสดีกุลไพศาล

President

Licence: Certified Public Accountant (CPA), licence no. 13407
Experience: Audit & Assurance, Deloitte Thailand
Finance Analyst, Indorama Ventures PCL
Chief Financial Officer, Finnx Co., Ltd.
Education: Bachelor of Accounting, Thammasat University

Nicharee Chaiyadecha

ณิชารีย์ ไชยะเดชะ

Managing Director

Licence: Certified Public Accountant (CPA), licence no. 13248
Experience: Audit & Assurance, KPMG Thailand
Country Head of Accounting and RIC, Siemens Limited and related companies
Education: Bachelor of Accounting, Thammasat University

Speakers and trainers

Our CPAs speak at seminars and teach finance courses for business owners.

Partners

We work with accounting software providers, law firms, and accounting and audit firms.

How we work

Every engagement follows clear steps and is reviewed by a CPA.

Standards-basedFinancial statements under TFRS for NPAEs / TFRS, and audits under Thai Standards on Auditing.

Quality controlAn accountant prepares, a team lead checks, and a CPA reviews before anything is delivered. Audits are reviewed by a second auditor before signing.

TransparentThe scope and fee are agreed before work begins, and you can see your accounts online in real time.

For accounting firms and independent bookkeepers

If your clients need a Certified Public Accountant or agreed-upon procedures (AUP), we would be glad to work with you as a partner.

See the partner programme

Talk to a CPA

Tell us what your business needs.

Talk to a CPA Email a CPA