Top 5 Biggest Accounting & Auditing Firms In Nigeria (2023)

The importance of auditing and accounting cannot be overemphasized emphasized in corporate and business world.

top & biggest auditing & accounting firms in nigeria

It gives credence to company’s financial statements, while also helping the company make better financial decisions.

Auditing also helps shareholders and stakeholders keep faith in their company. Auditing is usually carried out by an independent firm who would not have an interest or cause to interfere in the financial publications of the firm being audited.

As a result of the above reasons, when choosing an auditing and accounting firm to carry out an audit of a firm’s operations, integrity and professionalism is highly considered.

In Nigeria, there exist many top auditing and accounting firms operating within the country’s corporate and business world.

The bests and biggest auditing and accounting firms operating in Nigeria are international top auditing firms.

In this blog post, Nigerian Informer will be discussing top 5 best and biggest auditing and accounting firms in Nigeria.

This article will be very helpful to accounting and management students. It will also be of highly significant to those in the business and corporate world.

Top & Biggest Auditing & Accounting Firms In Nigeria

Ernst & Young (EY)

Ernst & Young is regarded as one of the biggest four accounting firms in the world. It is multinational professional service firm headquartered in London, United Kingdom.

EY is operating in Nigeria and is at the top echelons of auditing and accounting firms operating in the country.

In Nigeria, the biggest clients of Ernst & Young are oil and gas firms. Oando, Mobil, Seplat are some of its big clients in the oil and gas industry.

They also service some top financial institutions in Nigeria like Fidelity bank, Sterling Bank among others.

Ernst & Young is not just biggest auditing and accounting firms in Nigeria but a global giant in the industry.

PricewaterhouseCooper (PWC)

Another top international accounting and auditing firm operating in Nigeria is PricewaterhouseCooper.

The firm is headquartered in London, United Kingdom. In Nigeria, Guinness, Transcorp, UBA, GTBank are some of the biggest clients of PWC. For the year 2019, PWC made N19.3 billion in Nigeria.


KPMG is another top global auditing and accounting firm operating in Nigeria. It is also one of the biggest four accounting firms worldwide.

KPMG is founded by William Barclay Peat & James Marwick. The global firm is headquartered in Amstelveen, Netherlands.

Zenith bank, Total plc, Unilever, FCMB are some of its biggest Nigerian clients.


Deloitee also known as Deloitte Touche Tohmatsu Limited is one of the global renowned auditing and accounting firms operational in Nigeria.

It is one of the “Big Four” global auditing firms. Deloitee is founded by William Welch and headquartered in London.

Some of its biggest Nigerian clients includes Dangote Cement plc, Dangote Sugar, Nestle Nigeria plc, Nigerian Breweries plc.

Accenture Inc

Accenture Inc has been operating in Nigeria since 1985. The consulting firm is headquartered in Dublin, Ireland. The professional services firms have many clients in oil and gas industry in Nigeria.


The Author

Emmanuel Igwenagu

Igwenagu Emmanuel is the founder of Nigerian Informer. He holds B.A, M.Sc in Mass Communication. He is a Communication researcher and 112 emergency help line dispatcher.

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