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Singapore Audit Firm – Professional Audit Services

As business process become more computerised, fraud execution has also become more sophisticated and harder to detect by firms.

With the audit services we provide, we can access the stewardship of the directors and managers of the company as well as to provide a true and fair opinion on the Companies’ Statements.

We believe that we are capable of delivering quality audit base on the countless of providence of service to a spectrum of business within small and medium-size enterprises (SMEs), multinational corporations (MNCs) and subsidiaries of local and overseas listed companies. Our vast experience and knowledge in auditing enable our audit firm to make our judgement even more accurate and reliable.

Consult us for a no-obligation discussion on your audit needs today.


The Accounting and Corporate Regulatory Authority (ACRA) has recently amended their XBRL filing requirements and data elements, effective as of 1 January 2021. The XBRL preparation process and filing may seem a bit more

OA Assurance PAC - Featured on FinestinCity Singapore

OA Assurance PAC has been featured on FinestInCity Singapore as one of the best audit firms in Singapore.   read more

New Changes to the Management Team of OA Group

We welcome our New Audit Director , Beverley Khoo on board. read more

Grand opening for our new Robinson office

On 28 December 2016, OA has started its new journey in our new office at Robinson Road. In order to celebrate this important moment, we will hold a luncheon on 12 January 2017. You're welcome to join us and more

Merry Christmas 2016

OA would like to wish our clients, contacts and friends a Merry Christmass 2016. - celebrating Christmas at OA International Holdings. read more