About us


Pattarakiat Audit & Consulting Co., Ltd.
(Formerly known as Pattarakiat Accountancy and Legal Co., Ltd.) was established on July 16, 1998 by Mr.Chairoj Pattarakiatipong. The company specializes in providing services related to accounting, auditing, legal consulting, and accounting system design, drawing on over 20 years of business management experience.
In 2012, Mr.Chairoj Pattarakiatipong, together with Assistant Professor Dr. Titaporn Sincharoonsak, expanded the business to offer a broader range of services, including:
- Internal audit
- IT system audit
- Design and implement internal control systems
- Risk management
- Auditing for CAC & CAC SMEs
The company also serves as a consultant for various leading organizations, such as public companies, private companies, hospitals, foundations, associations, and other entities, earning trust through its past performance and extensive experience in the field.
Pattarakiat Audit & Consulting Co., Ltd.
(Formerly known as Pattarakiat Accountancy and Legal Co., Ltd.) was established on July 16, 1998 by Mr.Chairoj Pattarakiatipong. The company specializes in providing services related to accounting, auditing, legal consulting, and accounting system design, drawing on over 20 years of business management experience.
In 2012, Mr.Chairoj Pattarakiatipong, together with Assistant Professor
Dr. Titaporn Sincharoonsak, expanded the business to offer a broader range of services, including:
- Internal audit
- IT system audit
- Design and implement internal control systems
- Risk management
- Auditing for CAC & CAC SMEs
The company also serves as a consultant for various leading organizations, such as public companies, private companies, hospitals, foundations, associations, and other entities, earning trust through its past performance and extensive experience in the field.
In 2022, Mr. Poomsak Sinjaroonsak took on the role of Vice Managing Director of the company, expanding the business to align with future growth strategies by providing internal audits for companies participating in the CAC (Private Sector Collective Action Against Corruption) program. He also analyzes financial statements to enhance the liquidity of operations.
Despite the current high level of competition in the service industry and its ongoing expansion, our company remains committed to delivering high-quality results and enhancing service capabilities. We strive to earn the trust of our clients through the oversight and management of our experienced team and leadership.
In 2022, Mr. Poomsak Sinjaroonsak took on the role of Vice Managing Director of the company, expanding the business to align with future growth strategies by providing internal audits for companies participating in the CAC (Private Sector Collective Action Against Corruption) program. He also analyzes financial statements to enhance the liquidity of operations.
Despite the current high level of competition in the service industry and its ongoing expansion, our company remains committed to delivering high-quality results and enhancing service capabilities. We strive to earn the trust of our clients through the oversight and management of our experienced team and leadership.



Mr.Chairoj Pattarakiatipong
Is the founder of Pattarakiat Audit and Consulting Co., Ltd. He holds a Master’s Degree in Business Administration (M.B.A.) from Dhurakij Pundit University and is a licensed professional, including Certified Public Accountant (CPA) and Certified Internal Auditor (CIA). He was among the first five individuals in Thailand to achieve the CIA certification and has extensive experience in auditing, internal auditing, internal control system design, IT system audit, and consulting.
With his experience, expertise, and capabilities
He has gained the trust of leading organizations, including educational institutions. He has also held significant positions, including:
He has gained the trust of leading organizations, including educational institutions. He has also held significant positions, including:
- President of the Institute of Internal Auditors Thailand (IIAT) (2018-2022)
- Board Member of the Comptroller General's Department (2018-2022), serving on the committee for assessing the quality of internal auditing in the public sector
- Audit Committee Member at Thaksin University (2021-2022)
- Committee Member at the Ministry of Finance (2021-2022), focusing on the development of internal auditing, internal control, and risk management for government agencies.
With his experience, expertise, and capabilities
He has gained the trust of leading organizations, including educational institutions. He has also held significant positions, including:
- President of the Institute of Internal Auditors Thailand (IIAT) (2018-2022)
- Board Member of the Comptroller General's Department (2018-2022), serving on the committee for assessing the quality of internal auditing in the public sector
- Audit Committee Member at Thaksin University (2021-2022)
- Committee Member at the Ministry of Finance (2021-2022), focusing on the development of internal auditing, internal control, and risk management for government agencies.
- President of the Institute of Internal Auditors Thailand (IIAT) (2018-2022)
- Board Member of the Comptroller General's Department (2018-2022), serving on the committee for assessing the quality of internal auditing in the public sector
- Audit Committee Member at Thaksin University (2021-2022)
- Committee Member at the Ministry of Finance (2021-2022), focusing on the development of internal auditing, internal control, and risk management for government agencies.
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Executive Committee
Assistant Professor
Dr. Titaporn Sincharoonsak
Assistant Professor
Dr. Titaporn Sincharoonsak
Managing Director :
- Pattarakiat Audit & Consulting Co., Ltd.
Education :
- Doctorate in Philosophy (Accounting), Ramkhamhaeng University
- Master of Business Administration (International Business Management), Stamford International University
- Master of Business Administration (Accounting), Sripatum University
- Bachelor of Business Administration (Accounting), Krirk University
Certificates/Training :
- Project Expenditure Auditor, Thai Health Promotion Foundation
- Accountant
- Director Certification Program (DCP) Class 364/2024

2022
2012
2011
2010
2009
2009

Mr. Poomsak Sinjaroonsak
Vice Managing Director :
- Pattarakiat Audit & Consulting Co., Ltd.
Education :
- Master of Accountancy (Accounting), Sripatum University
- Bachelor of Accountancy (Accounting), Sripatum University
วุฒิบัตร/การอบรม :
- Certified Professional Internal Auditor (CPIAT Registration No.1075)
- Financial Advisor (FA License) with approval from the SEC.
- Independent Auditor for CAC & CAC SMEs.
- Project Expenditure Auditor, Thai Health Promotion Foundation
- Accountant
- Director Accreditation Program (DAP) Class 208/2023
- Certificate of Thai Chartered Management Accountant Professional (TCMA)
2022
2021
2020
2015 - 2022
GET A FREE CONSULTATION
062-225-3544
Move forward together with Pattarakiat
Pattarakiat Audit and Consulting Co., Ltd.
The success of the company is derived from the trust and confidence of its clients, which include those listed on the Stock Exchange of Thailand and other leading organizations. The team treats clients like family and consistently responds well to their needs.
Vission
To be a Leading Audit Office with continuous and sustainable growth
To be a Leading Audit Office
with continuous and sustainable growth
Mission
- To provide services in internal auditing, designing and implementing internal control systems, auditing information technology systems, and managing risks appropriately, serving as consultants in assessing internal control systems in alignment with the clients' context, while supporting effective internal audit standards.
- To create business stability and build sustainable partnerships.
- To foster good relationships between the company, clients and all stakeholders.
- To develop personnel for efficiency and enhance employee skills for quality.
- To create a positive organizational culture that instills pride in being part of the organization.
- To provide services in internal auditing, designing and implementing internal control systems, auditing information technology systems, and managing risks appropriately, serving as consultants in assessing internal control systems in alignment with the clients' context, while supporting effective internal audit standards.
- To create business stability and build sustainable partnerships.
- To foster good relationships between the company, clients and all stakeholders.
- To develop personnel for efficiency and enhance employee skills for quality.
- To create a positive organizational culture that instills pride in being part of the organization.
Our Team

Poomsak Sinjaroonsak
- CPIAT Registration No. 1075
- FA License
- Independent Auditor, CAC & CAC SMEs
-
Certificate of Thai Chartered Management
Accountant Professional (TCMA) -
Project Expenditure Auditor,
Thai Health Promotion Foundation

Kittithat Promto
- CPA Registration No. 13791
- Independent Auditor, CAC
-
Certificate of Thai Chartered Management
Accountant Professional (TCMA) -
Project Expenditure Auditor,
Thai Health Promotion Foundation

Apinya Sinjarunsak
- Accountant
- Independent Auditor, CAC
-
Project Expenditure Auditor,
Thai Health Promotion Foundation

Assistant Professor
Dr. Titaporn Sincharoonsak
- Dean, Faculty of Accountancy, Sripatum University
-
Chairman of the CPIAT Evaluation
Subcommittee, IIAT -
Project Expenditure Auditor,
Thai Health Promotion Foundation

Captain Dr. Worawut Tangpradit
- CPA Registration No. 13634
- TA Registration No. 3229
- IACP
- FA License
-
Project Expenditure Auditor,
Thai Health Promotion Foundation - Lawyer

Chanakarn Thanraewadee
- CPA Registration No. 13812
- TA Registration No. 4144
- IACP
- FA License
-
Project Expenditure Auditor,
Thai Health Promotion Foundation - Certificate of EQR and TSQM1 Monitoring
- FAC

Nuttawut Sinkhrok
- FAC
- Lawyer
- Barrister