Grant Thornton Thailand is a professional international audit firm with expertise and experience.

We provide a high quality, world-class independent audit service. Our well-trained audit professionals are dedicated to our clients. Their detailed understanding of Thai auditing standards allows us to provide a service that ensures you satisfy regulators, directors and shareholders as well as other stakeholders.

Our audit and assurance services have been utilised by a wide range of clients from dynamic private companies to public companies competing in global markets.

Our audit process involves our own proprietary auditing tools and methodology. This unique approach, combined with the knowledge and experience of our expert team guarantees accurate reports are delivered with realistic insights.

Our audit and assurance services include:

  • Financial statements audit
  • Financial statements limited review
  • Special purpose audit
  • Provident fund audits
  • Agreed-upon procedures audit

Why Grant Thornton?

We have the size, scope, breadth, depth and global reach to serve dynamic organisations around the world. Our teams can provide you with assurance services that deliver real value and support investor confidence.

We coordinate, cooperate and communicate based on our shared global strategy, which ultimately leads to greater consistency and better quality. 

A culture of quality

We approach each audit with sharp thought, straight talk and common sense. In addition to verifying that financial results are fairly presented and meet applicable professional standards, we provide observations and insight into the real performance of your business.

We have a dedicated quality monitoring programme that focuses on the six elements of International Standard on Quality Control (ISQC). Under this programme, we review the audit quality of all our member firms and provide feedback on the design, implementation and operation of their assurance practice quality control.

This rigorous approach helps make sure we deliver consistent, quality services for our clients worldwide over the longer term.

Learn more about our audit quality-monitoring programme.

A single global audit approach

We use one audit methodology globally, which means we can offer you consistent, high quality services wherever you are in the world. 

Our audit methodology, Horizon, features a partner-led process that focuses our audit efforts on those areas of your financial statements that represent the greatest risk.

Horizon also features integrated quality-control processes, including policies and procedures for engagement quality-control review. The Horizon methodology is supported by the Voyager suite: an integrated set of six proprietary software tools. 

We continuously evaluate our audit methodology and software applications and provide updated versions annually.

Learn more about our technology audit software tools.

International Financial Reporting Standards

Capability in International Financial Reporting Standards (IFRS) is one of our core skills. We have a full-time team responsible for high quality, consistent application of IFRS throughout the global organisation.

The IFRS team promotes consistency by:

  • Offering regular training programmes
  • Operating an IFRS helpdesk service
  • Publishing extensive technical and interpretive guidance, newsletters and other tools and resources.

We also actively contribute to the development of IFRS. This includes the submission of global comment letters on proposals for new and amended standards as well as participation in roundtables and other events. We are also a member of the IFRS Interpretations Committee, the IFRS Advisory Council and the IFRS for SMEs Implementation Group.

If you have any questions or would like to find out more about how we can help, please contact us.

Our Audit and assurance

Internal audit

In today's increasingly competitive and regulated market place, organisations - both public and private - must demonstrate that they have adequate controls and safeguards in place. The availability of qualified internal audit resources is a common challenge for many organisations.


At Grant Thornton, our International Financial Reporting Standards (IFRS) advisers can help you navigate the complexity of financial reporting so you can focus your time and effort on running your business.

Audit quality monitoring

Having a robust process of quality control is one of the most effective ways to guarantee we deliver high-quality services to our clients.

Global audit technology

We apply our global audit methodology through an integrated set of software tools known as the Voyager suite.

Get to know

Grant Thornton Assurance services overview

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