Top 10 Audit Firms in Hong Kong: 2025 Ranking

Choosing the right audit firm in Hong Kong can make all the difference as your business grows and the need for timely, compliant financial reporting becomes more critical.

At Statrys, we work closely with SMEs navigating statutory audits, so we understand how difficult it can be to choose the right audit service provider, especially when firms offer similar services but vary widely in size, pricing, and specialisation. That’s why we created this guide to give you a clear, up-to-date overview of the top audit firms in Hong Kong, from the Big Four to trusted regional and local players.

Whether you're an SME approaching mandatory audit thresholds or looking for a more strategic audit partner, this ranked list will help you make a confident, informed decision for your business.

To help you make informed decisions, this ranking is based on publicly available data and qualitative factors relevant to businesses operating in Hong Kong. We considered the following criteria:

• Reputation: Industry standing, global network affiliation, and recognitions or rankings.
• Market Presence: Number of listed companies audited and overall visibility in Hong Kong.
• Industry Specialisation: Experience with specific sectors such as trading, finance, tech, or professional services.
• Suitability for SMEs: Flexibility in service delivery, cost transparency, and ability to support small to mid-sized companies.
• Service Scope: Availability of additional services like tax, advisory, and compliance support.

First, let’s start with the Big Four audit firms: Ernst & Young (EY), PwC, Deloitte, and KPMG. These global giants dominate the business advisory, accounting services, and auditing market with extensive resources, deep industry expertise, and strong reputations. In Hong Kong, they’re the go-to choice for listed companies, multinational corporations, and businesses preparing for IPOs.

Ernst & Young (EY) is one of the Big Four business consulting and accounting firms with a well-established presence in Hong Kong. Known for its global reach and deep industry expertise, EY provides audit and assurance services to some of the region’s largest listed companies and multinational businesses.

Key Information

• Core Audit Services: Statutory audits, internal controls review, financial reporting advisory (FAAS)  
• Industry Focus: Financial services, energy and resources, advanced manufacturing and mobility, consumer products, technology, and telecommunications
• Client Types: Listed companies, regional conglomerates, investment firms
• Additional Services: Tax compliance, ESG reporting, transaction advisory
• Pros: Strong credibility with regulators and investors and strong cross-border support. 
• Cons: Higher fees compared to mid-sized firms. 

Reviews

Trustpilot - 1.3 / 5  from 166 reviews

This is very low, but it’s also common for global firms like EY on consumer review platforms. Often, it’s frustrated individual clients, applicants, or small businesses that had trouble accessing services or felt overlooked. EY is geared toward large corporations, not walk-in clients — so they’re not optimised for the types of users who tend to leave reviews on platforms like Trustpilot.

Glassdoor - 3.5 / 5 from 1303 reviews

This rating reflects employee satisfaction, and it’s fairly average.

PwC is another leading Big Four accounting and advisory firm with a long-standing presence in Hong Kong, having operated in the jurisdiction since 1902. Known for its comprehensive audit methodology, a broad range of corporate services, and strong client support, PwC serves many Hong Kong businesses and some of the region’s largest listed companies.

Key Information

• Core Audit Services: Financial statement audit, accounting advisory services, capital market services
• Industry Focus: Financial services, banking and capital markets, real estate, insurance, technology, life sciences and healthcare, automotive, aviation, energy, and more. 
• Client Types: Listed companies, multinational groups, regulated financial entities
• Additional Services: Tax advisory, regulatory compliance, cybersecurity and risk consulting, deal advisory
• Pros: Deep technical expertise, strong reputation in regulated industries, and extensive global network
• Cons: Less flexibility for smaller, less complex businesses

Reviews

Trustpilot - 2.5 / 5  from 6 reviews

While the score is low, most comments come from individuals with isolated touchpoints—such as job applicants or those seeking one-off support—so the reviews don’t reflect the views of PwC’s long-term or corporate clients.

Glassdoor - 3.4 / 5 from 2041 reviews

A score of 3.4 is average for a firm of PwC’s scale. It reflects a mixed employee experience, many highlight the brand reputation, training, and career opportunities, while others note the demanding nature of the work environment typical of large professional services firms.

Deloitte Touche Tohmatsu (Deloitte) is an international accounting and professional services network headquartered in the UK. Since opening its first office in Hong Kong in 1972, Deloitte has been delivering a broad range of services, including audit and assurance, financial advisory, tax planning, and regulatory consulting, making it a valuable partner for businesses navigating complex reporting environments.

Key Information

• Core Audit Services: Financial statements audit, internal control assessments, audit analytics
• Industry Focus: Financial services, public sector, technology, energy, life sciences, consumer business
• Client Types: Listed companies, multinational firms, expanding regional businesses
• Additional Services: Financial advisory, tax planning, regulatory consulting, ESG and climate reporting
• Pros: Strong focus on audit quality and innovation; integrated use of advanced technologies
• Cons: Higher pricing and may not suit SMEs looking for basic audit-only engagements

Reviews

Trustpilot - 1.3 / 5  from 203 reviews

Deloitte also has a low score on Trustpilot, but the context matters. Most reviews come from individuals with limited interactions, such as those seeking personal support, which doesn’t reflect the experience of Deloitte’s core corporate clients. Given the firm’s global scale, the relatively low number of reviews further suggests that Trustpilot isn’t a representative platform for evaluating a large professional services firm.

Glassdoor - 3.2 / 5 from 1,073 reviews

A score of 3.2 is on the lower side for a firm of Deloitte’s size. It suggests a varied employee experience, with some valuing the brand and career development opportunities, while others may find the work environment challenging.

Formed through the mega-merger of Peat Marwick International (PMI) and Klynveld Main Goerdeler (KMG), KPMG is one of the largest accounting firms in the world. In Hong Kong, the firm has built a strong reputation for delivering high-quality audit services supported by deep industry knowledge and a commitment to regulatory compliance.

Key Information

• Core Audit Services: Statutory audits, internal controls audit, audit data analytics
• Industry Focus: Banking and capital markets, insurance, real estate, energy, consumer markets, technology
• Client Types: Listed companies, financial institutions, multinational enterprises
• Additional Services: Tax advisory, deal advisory, ESG reporting, risk and regulatory consulting
• Pros: Strong industry expertise, recognised audit quality, integrated global network
• Cons: Higher audit fees

Reviews

Trustpilot - 1.6 / 5  from 46 reviews

KPMG’s low score on Trustpilot reflects a small sample of mostly individual users, with just 46 reviews. While some comments recognise the firm’s strong reputation and global brand, many mention high pricing. That said, the cost is often tied to the level of expertise and scale of service expected from a firm of this distinction. As with other Big Four firms, Trustpilot is not a platform widely used by their typical corporate clients.

Glassdoor - 3.6 / 5 from 825 reviews

A score of 3.6 suggests a generally positive employee experience at KPMG. Many reviewers highlight the firm’s strong brand, learning opportunities, and exposure to large clients. 

Next, let’s take a look at firms that, although they may not have the global scale of the Big Four, are well-established in Hong Kong and offer reliable audit services with a more personalised approach. They are often a better fit for SMEs, private companies, and growing businesses seeking quality, industry expertise, and greater flexibility in service and pricing.

BDO Hong Kong, as a member firm of BDO Global, provides audit services that follow a consistent global methodology based on the BDO Audit Manual. This approach fully complies with the International Standards on Auditing (ISA) and includes supplementary guidance tailored to meet Hong Kong’s statutory requirements.

Key Information

• Core Audit Services: Statutory audits, HKFRS/IFRS, financial reporting advisory
• Industry Focus: Trading, manufacturing, professional services, non-profits, property development
• Client Types: Privately held businesses, mid-sized companies, cross-border enterprises
• Additional Services: Tax advisory, corporate restructuring, risk management, forensic accounting
• Pros: Specialises in supporting mid-sized companies with both local and international operations, consistent global audit methodology
• Cons: May have limited capacity during peak audit season, potentially affecting turnaround times for new or smaller clients

Reviews

Trustpilot - Not available

BDO has separate Trustpilot pages for each region, such as the UK and Denmark, so it would not be fair to include a single score here. Ratings across regions are generally low, but most reviews come from individuals and do not necessarily reflect the quality of service provided to BDO’s core corporate clients.

Glassdoor - 3.0 / 5 from 236 reviews

A score of 3.0 is relatively low compared to other firms in this list. While some employees appreciate the exposure to diverse clients and industries, the reviews suggest a mixed experience overall. With just over 200 entries, this rating offers limited insight, though. 

Baker Tilly Hong Kong is a full-service accounting and advisory firm and a member of the global Baker Tilly International network. With a history in Hong Kong dating back to 1977, the firm provides audit and assurance services alongside tax, advisory, and corporate support, with a strong focus on mid-sized enterprises and compliance with Hong Kong accounting standards.

Key Information

• Core Audit Services: Statutory audits, financial statement reviews, internal control assessments
• Industry Focus: Trading, logistics, retail, professional services, property
• Client Types: SMEs, mid-sized enterprises, privately held companies
• Additional Services: Forensic accounting, risk management and financial advisory services
• Pros: Strong local market experience, specialises in SME and mid-sized audits, hands-on client support
• Cons: May offer fewer international resources or sector-specific insights compared to larger networks

Reviews

Trustpilot - 2.1 / 5  from 11 reviews

With only 11 reviews, this score is too limited to draw firm conclusions. The few comments available are mostly from individuals and may reflect isolated experiences rather than the quality of Baker Tilly’s core services, which are geared towards businesses and long-term clients.

Glassdoor - 3.6 / 5 from 1,884 reviews

A score of 3.6 shows a generally positive work environment at Baker Tilly Hong Kong. Many employees mention strong mentorship, learning opportunities, and a collaborative culture. As with many mid-sized firms, experiences can vary by office or region, but the overall sentiment suggests a solid platform for professional development.

Forvis Mazars Hong Kong is a leading provider of corporate finance and advisory services with a strong emphasis on quality, transparency, and international coordination. It is part of the newly formed global network Forvis Mazars, established through the combination of established firms Mazars and FORVIS in 2024.

Key Information

• Core Audit Services: Statutory audits, group audits, IFRS and HKFRS financial reporting, internal control reviews
• Industry Focus: Financial services, technology, manufacturing, professional services, NGOs, transport and logistics
• Client Types: Mid-sized companies, international subsidiaries, non-profits, listed entities
• Additional Services: Tax advisory, outsourcing, sustainability reporting, transaction support
• Pros: Specialises in cross-border audit and reporting, strong mid-market focus, consistent quality standards
• Cons: Brand visibility in transition due to recent rebranding

Reviews

Trustpilot - Not available

Forvis Mazars does not have a Trustpilot page. However, like other professional services firms in this list, it is unlikely to be reviewed frequently on consumer platforms as their clients are primarily businesses rather than individuals.

Glassdoor - 4.0 / 5 from 58 reviews

An employee’s review score of 4 out of 5 is very high and reflects a strong employee experience, though based on a relatively small number of reviews. Comments often highlight a supportive culture, good work-life balance, and opportunities for growth.

Grant Thornton is another one of the world’s leading networks of independent accounting and advisory firms. The Hong Kong office offers a broad range of professional services, with audit and assurance at the core of its practice. 

Key Information

• Core Services: Statutory audits, IFRS/HKFRS reporting, internal control reviews
• Industry Focus: Consumer products, manufacturing, logistics, financial services
• Client Types: Mid-sized businesses, cross-border groups, private companies
• Additional Services: Tax advisory, business risk services, restructuring, transaction support
• Pros: Strong regional insight, business-focused audit teams, global network support
• Cons: May not suit businesses requiring highly specialised or niche sector audits

Reviews

Trustpilot - Not available

As with many professional services firms, Grant Thornton’s  typical clients are corporations and businesses, not individual consumers, making platforms like Trustpilot not really relevant.

Glassdoor - 3.8 / 5 from 9,107 reviews

A score of 3.8 from over 9,000 reviews suggests a broadly positive employee experience. Given the large volume of feedback, this rating offers a credible view of the firm’s workplace environment.

RSM Hong Kong is a member of RSM International, one of the largest global networks of audit, tax, and consulting firms serving the middle market. Established in Hong Kong in 1975, the firm has built a reputation for combining technical expertise with practical business advice.

Key Information

• Core Audit Services: Statutory audits, financial reporting, reporting accountant services, key management controls review
• Industry Focus: Financial services, technology, manufacturing
• Client Types: Mid-sized companies, private groups, international subsidiaries, growing enterprises
• Additional Services: Tax advisory, business consulting, sustainability assurance solutions
• Pros: Comprehensive service offerings with a focus on quality and international standards
• Cons: May offer a narrower industry focus compared to firms with specialised sector teams

Reviews

Trustpilot - Not available

RSM does not have a central Trustpilot page, so there is no consolidated score. As with other firms in this sector, Trustpilot is not a common platform for their typical clients to leave feedback.

Glassdoor - 3.9 / 5 from 4,470 reviews

With more than 4,000 reviews, this score reflects a consistently positive employee experience at RSM. Common themes include solid training, clear growth paths, and a collaborative atmosphere. 

Lastly, ShineWing (SW) CPA Limited is a prominent accounting and advisory firm with a strong presence in Hong Kong. As part of the SW International network, which ranks 21st globally in fee income and 18th in total headcount among the top 30 networks, SW offers a comprehensive range of professional services to a diverse clientele.

Key Information

• Core Audit Services: Statutory audits, financial reporting reviews, internal control assessments, and special audits tailored to specific business needs.
• Industry Focus: Automotive, education, manufacturing, mining, petrol and gas, pharmaceuticals, and more
• Client Types: Large enterprises, publicly listed companies, multinational corporations, and industry-specific businesses.
• Additional Services: Tax advisory, business consulting, risk management, recovery and reorganisation services, and corporate services such as accounting and bookkeeping.
• Pros: Strong network in the Asia-Pacific region and a broad spectrum of services
• Cons: May not have the same global brand recognition as the Big Four accounting firms

Reviews

Trustpilot - Not available

Since SW focuses on B2B services, it has little presence on consumer-facing platforms like Trustpilot. Most of its client relationships likely fall outside the scope of platforms designed for individual users.

Glassdoor - 3.3 / 5 from 78 reviews

The current rating on Glassdoor shows a moderately mixed view from employees. With just 78 reviews, the sample size is small, but feedback points to a workplace with both strengths and areas for improvement. 

In Hong Kong, all companies incorporated under the Companies Ordinance are required to maintain proper books of accounts and prepare audited financial statements annually. 

These audited statements, along with an auditor’s report, must be submitted when filing the company’s Profits Tax Return (PTR) to the Inland Revenue Department (IRD). Audited financial documents are also especially important as supporting documents if you are filing an offshore tax claim to be exempted from profits tax in Hong Kong.

Here are the key points SME owners and finance managers should know:

1. Audits must be done by a Certified CPA: The auditor must hold a valid practising certificate issued by the Hong Kong Institute of Certified Public Accountants (HKICPA).
2. Certain companies can qualify for reporting exemptions: Dormant companies, companies incorporated in jurisdictions where audits are not legally required, and Hong Kong branches of foreign companies are exempt from submitting audited financial statements to the IRD. Small companies (such as those with revenue and total assets under HKD 100 million) may also qualify if they meet specific criteria under the Companies Ordinance.

Most top audit firms offer a similar level of service and quality, making them a reliable choice for large enterprises with complex needs. For SMEs, particularly mid-sized companies, the challenge is finding an audit partner that goes beyond standard compliance to offer tailored guidance and practical support. Here’s what to look for:

• Experience with Similar Businesses: Choose a firm that understands your industry and has worked with companies of a similar size or structure.
• Clear Communication and Responsiveness: An audit can be time-sensitive. Look for firms that communicate proactively and clearly outline their process and requirements. Checking client reviews can also give insight into how the firm handles communication in practice.
• Transparent Pricing: Most audit and accounting firms offer quote-based pricing, though some provide fixed-fee packages tailored for SMEs. To avoid unexpected costs, always request a clear breakdown of fees and services included.
• Value-Added Services: Firms that also offer bookkeeping, tax advisory, or digital integrations (e.g. with Xero) can streamline your financial operations.
• Scalability: If your business is growing or planning to raise funds, choose a firm that can scale with you and support future needs like IPO preparation or cross-border audits.

Taking the time to assess these factors will help ensure your audit process is smooth, efficient, and beneficial to your business in the long run.

If your business doesn't need a full audit but requires support with accurate record-keeping or preparing financial statements, Statrys offers accounting solutions designed specifically for SMEs in Hong Kong and Singapore.

From day-to-day bookkeeping to getting your accounts audit-ready, Statrys provides practical support to help you stay compliant, focused on your business, and free from the stress of complex accounting tasks. Key services include:

✅Preparation of financial statements (Profit & Loss, Balance Sheet, etc.)

✅Tax planning and filing, including business tax returns

✅Advisory on financial management and growth strategies

✅Audit support and communication with tax authorities

✅Fully integrated with Statrys Business Account and Company Secretary services—making it streamlined and cost-effective for SMEs