Mongolia's

trusted provider of

audit, tax and

advisory services

Get expert advice from local professionals with international expertise
Start the conversation
Start the conversation
Our services

Operating in this market requires local insight, historical and geopolitical context, as well as international know-how. Onch & Company is proud to possess all of this as Mongolia's leading professional services firm. Experience the difference with a local team dedicated to your success.

Advance your career with Onch Academy training and mentorship for leaders!

Onch Academy empowers emerging professionals through world-class training. Grow with expert mentorship and hands-on learning.
Learn more
Learn more
Success stories
Onch & Co. has been a trusted partner to Steppe Gold since we became a public company in 2018. They are responsive, solution-oriented, and truly set themselves apart by going beyond compliance. More than just service providers, they are close advisors we rely on. Their bilingual team understands the local market while bringing an international perspective. This combination provides real value to our business.
Onch Audit Company has made significant contributions not only to Nomin Holding but also on a national level in Mongolia by helping to introduce and localize international accounting and financial reporting standards. They have played a key role in establishing policies, guidelines, standards, and regulations to support these standards. Onch Audit’s greatest strength lies in its holistic approach to advising, analyzing each issue in a comprehensive manner, including its scope, process, outcomes, and impact. We highly value their team of professionals, who are experienced, skilled, uphold high ethical standards, and maintain a high level of quality in all their work.
One of the most important projects handled by Onch & Company was improving our internal audit; they worked closely with our bank.  They guided us in improving the quality of our internal audits and enhancing our internal operational processes. For a large organization like ours, there are numerous processes in place. They advised us on identifying process errors and offered recommendations on optimizing efficiency. Additionally, they guided us in international procurement processes, such as selecting suppliers and partners. With their support, we have enhanced our procurement policies and procedures, which continue to serve as standards today
Since 2007-2008, our company has been a satisfied and long-standing partner, receiving a wide range of services from Onch & Company. For us, implementing tax laws and regulations is crucial, and we set high standards internally to receive the best service. That’s why we chose to work with Onch & Company for so many years, and we will continue to rely on their tax advisory services in the future.
Government authority
When major international companies in the mining sector began entering and establishing themselves in Mongolia around 2004-2005, Onch Audit Company was one of the few Mongolian firms that had already identified this market opportunity and was prepared to operate in it. Looking back, during a period when Mongolia’s economy was booming, Onch Audit was able to establish itself quickly, competing on an equal footing with international companies in terms of skill and expertise. This capability enabled the team to meet the standards required to work alongside major global firms. Congratulations to the leadership team for building and developing such an outstanding team over the years.
Their strengths include providing consulting services in line with international standards, excelling not only in audit but also in various areas such as business consulting, tax advisory, and risk assessment. They have a highly skilled and professional team capable of delivering insightful advice across all these areas.
Onch & Company’s auditing services span beyond accounting to include cyber security, IT systems, and IT governance. This comprehensive view has been invaluable for a complex organization like our bank. In a few words, they are a professional team with extensive international experience and strong knowledge of both Mongolian and international practice standards.
Ready for clear, reliable advice
tailored to your business?
Let’s talk to the right expert today.
Start the conversation
Start the conversation