Best International Accounting Firms Like Deloitte and PwC

If you run a business that operates across borders, you already know that picking an accounting partner isn’t as simple as googling “accountant near me.” You need a firm that understands tax law in three or four jurisdictions, can handle a multinational audit without missing a beat, and has offices in the cities where your business actually operates. That’s where the best international accounting firms come in.

Deloitte and PwC get mentioned constantly, and for good reason. But they’re not the only players worth your attention, and depending on your company’s size, industry, and budget, they might not even be the right fit. Mid-tier networks like BDO, Grant Thornton, and RSM have built serious global reach without the price tag that comes with Big Four billing rates.

This article breaks down the top international accounting firms, what each one is actually good at, and how to think about choosing between them. Whether you’re a startup expanding into Europe, a mid-market company going public, or a multinational needing coordinated audits across a dozen countries, you’ll find a clearer picture of your options here.

What Makes an Accounting Firm “International”?

Before comparing names, it helps to know what actually separates a global accounting network from a firm that just has a fancy website. A true international accounting firm typically has:

• Member firms in 100+ countries, operating under a shared brand and shared quality standards
• Cross-border coordination, so a client in Singapore and a client in Germany can be served by the same engagement team
• Local licensing and expertise in each country, since accounting and tax rules aren’t standardized globally
• Consistent service lines across audit, tax, advisory, and consulting, no matter which office you’re working with
• Global client rosters that include multinational corporations, private equity firms, and public companies

Most of these networks aren’t a single company at all. They’re a federation of independently owned member firms that share a brand name, methodology, and quality controls, but operate under separate legal and financial structures in each country. Deloitte, PwC, EY, and KPMG all work this way, and so do the mid-tier networks discussed below.

The Big Four: The Default Choice for Multinationals

When people say “accounting firms like Deloitte and PwC,” they’re usually talking about the Big Four: Deloitte, PwC, EY, and KPMG. These four firms audit the large majority of publicly traded companies worldwide and dominate the top end of the market.

1. Deloitte

Deloitte is the largest of the Big Four by both revenue and headcount, and it has held that position for years. The firm crossed $70 billion in global revenue for its 2025 fiscal year and employs well over 450,000 people <cite index=”10-2″>across more than 150 countries, with the largest share of its workforce in the Americas</cite>. Deloitte’s strongest lines of business are consulting and risk advisory, alongside its traditional audit and tax practices, which is why it’s often the first name that comes up when companies need help with digital transformation projects alongside their financial statements.

If your business needs a partner that can handle everything from statutory audits to cybersecurity consulting to M&A due diligence under one roof, Deloitte is built for that scale.

2. PwC

PricewaterhouseCoopers, better known as PwC, was formed in 1998 through the merger of Price Waterhouse and Coopers & Lybrand, though both predecessor firms trace back to the mid-1800s. PwC operates in over 150 countries and reported revenue north of $53 billion in a recent fiscal year, with a workforce of more than 360,000 people. PwC is widely regarded, alongside Deloitte, as one of the two most prestigious firms in the group, which shows up in how selective its hiring process is and in its pricing.

PwC has invested heavily in technology and AI-driven audit tools in recent years, positioning itself as a firm that blends traditional assurance work with modern data analytics.

3. EY (Ernst & Young)

EY rounds out the top three by prestige and is known for having one of the most competitive recruiting processes in the industry, with historical acceptance rates hovering around 3 to 4 percent for entry-level roles. EY’s tax practice is particularly strong, and the firm has leaned into sustainability and ESG advisory work as that area has grown in importance for large corporations.

EY also has a notable global restructuring history, including a widely reported (and ultimately abandoned) plan to split its audit and consulting businesses, which gives some sense of how large and complex its internal operations have become.

4. KPMG

KPMG is the smallest of the Big Four by revenue, closing a recent fiscal year at roughly $39 to $40 billion with about 276,000 employees globally, but it’s still far ahead of any firm outside the group. Headquartered in Amsterdam, KPMG operates through more than 650 offices in over 150 countries. The firm has recently combined some of its regional operations, including merging Danish operations with EY in that market, to strengthen its footprint.

KPMG tends to be strong in financial services audits and has a solid reputation in banking, insurance, and asset management sectors specifically.

Mid-Tier International Networks Worth Considering

Not every company needs, or can afford, Big Four rates. The mid-tier networks below offer genuine global reach, serious technical expertise, and often a more personal client relationship, at a lower cost. These firms are frequently the better fit for mid-market businesses, private companies, and organizations that don’t need the specific brand recognition that comes with Big Four billing.

5. BDO

BDO is the largest of the mid-tier networks by a clear margin. Its global network reported own-firm revenue past $11 billion for a recent fiscal year, or over $16 billion once alliance firms are factored in, making it the closest thing to a “fifth” major firm. BDO is particularly well suited to mid-market and privately held businesses that want global reach without the Big Four price tag, and it has built a strong reputation in industries like manufacturing, real estate, and nonprofit accounting.

6. Grant Thornton

Grant Thornton International posted record global revenue of $8.5 billion in a recent fiscal year, with assurance work leading the growth. The network has a strong presence in the UK, where its member firm alone operates dozens of offices, and it markets itself specifically toward growth-oriented, entrepreneurial businesses rather than the largest multinationals. If your company values a more hands-on relationship with senior partners rather than being one of thousands of clients, Grant Thornton is worth a look.

7. RSM

RSM is one of the more established mid-tier networks, with a strong footing in the United States and a genuinely global reach through its international member firms. Revenue figures for RSM have shifted in recent years following network restructuring, but it remains one of the top handful of accounting networks by size, competing directly with BDO and Grant Thornton for mid-market clients that need audit, tax, and consulting services delivered consistently across borders.

8. Crowe Global

Crowe Global has built its reputation on strong technical accounting expertise combined with a genuinely international footprint, operating in 130-plus countries through independent member firms. Crowe tends to attract clients in manufacturing, technology, and financial services who want Big Four-level technical rigor without the overhead that comes with the largest networks.

9. Baker Tilly International

Baker Tilly International is another major mid-tier network with member firms spread across more than 140 countries. The network has grown aggressively through mergers in recent years, particularly in the U.S. and UK markets, and has built a reputation for combining audit and tax fundamentals with specialized advisory services for private equity and family-owned businesses.

10. Mazars (Forvis Mazars)

Mazars, now operating under the Forvis Mazars brand in many markets following its 2024 merger with U.S. firm Forvis, has a long-standing international presence, especially strong in Europe. The firm is known for its audit quality reputation and has positioned itself as an alternative for companies that want a firm with deep European roots and genuine global reach, without going with one of the Big Four.

How to Choose Between These Firms

Picking the right partner from this list of top international accounting firms depends less on brand recognition and more on what your business actually needs. A few questions worth asking:

1. What’s your company size? Large multinationals and publicly traded companies often need Big Four scale and resources. Mid-market and privately held businesses are frequently better served, and better priced, by BDO, Grant Thornton, RSM, or similar networks.
2. Which countries do you actually operate in? Not every network has equal strength in every region. A firm that dominates in Europe might have a thinner presence in Southeast Asia, so check the specific member firm coverage where your business operates.
3. What services do you need beyond audit? If you need heavy consulting, technology advisory, or M&A support alongside your accounting work, the Big Four generally offer the broadest service lines under one roof.
4. What’s your budget? Big Four billing rates are significantly higher than mid-tier firms for comparable audit work. If cost is a major factor, the mid-tier networks above deliver strong technical quality at a lower price point.
5. How much personal attention do you want? Smaller networks and regional member firms often provide more direct access to senior partners, rather than a rotating cast of junior staff.

Industries Where These Firms Specialize

Different networks have built out particular strengths over the decades, and it’s worth matching your industry to a firm’s track record:

• Financial services and banking: KPMG and PwC have particularly deep benches here
• Technology and startups: Deloitte and EY have invested heavily in tech-sector advisory teams
• Manufacturing and mid-market industrials: BDO, Crowe Global, and RSM tend to be strong fits
• Nonprofits and public sector: BDO and Grant Thornton both have dedicated practices
• Private equity and family businesses: Baker Tilly and Grant Thornton have built specific advisory teams around these clients

The Bottom Line on Cost and Value

It’s worth being direct about pricing, since it’s often the deciding factor. Big Four engagements typically cost more per hour than mid-tier alternatives, sometimes substantially so, because of brand premium, more layered staffing structures, and higher overhead. That premium can be worth it for a publicly traded company that needs a Big Four name on its audit opinion to satisfy investors and regulators. For a private mid-market company, though, that same premium may not translate into meaningfully better service.

According to <cite index=”7-1″>general assessments, PwC and Deloitte are considered the most prestigious of the Big Four</cite>, which is reflected in their pricing structures relative to EY and KPMG. Meanwhile, the mid-tier firms compete heavily on value, positioning themselves as offering comparable technical expertise at a lower cost.

Frequently Asked Questions

Are there accounting firms as good as Deloitte and PwC? Yes. EY and KPMG round out the Big Four with comparable global reach and technical expertise. Beyond that group, BDO, Grant Thornton, and RSM offer strong international coverage and are often a better fit for mid-market businesses.

Do I need a Big Four firm for my small international business? Not necessarily. Mid-tier networks like BDO or Crowe Global can typically handle cross-border audit and tax work for smaller businesses at a lower cost, while still offering genuine international coverage.

Which international accounting firm is best for startups? Many startups start with a mid-tier or regional firm and move to a Big Four firm closer to an IPO, when investors and regulators expect that level of audit credibility.

How many countries do the Big Four operate in? All four, Deloitte, PwC, EY, and KPMG, operate in more than 150 countries through their networks of member firms.

Conclusion

Choosing among the best international accounting firms really comes down to matching your company’s size, industry, and budget to what each network does well. Deloitte, PwC, EY, and KPMG remain the default choice for large multinationals and public companies that need maximum scale, brand recognition, and a full menu of services under one roof.

But for mid-market businesses, startups, and privately held companies, networks like BDO, Grant Thornton, RSM, Crowe Global, Baker Tilly, and Forvis Mazars offer genuinely global reach, strong technical expertise, and a more personal client relationship, usually at a meaningfully lower cost. The right firm isn’t necessarily the biggest name on the list; it’s the one whose coverage, specialization, and pricing actually line up with where your business is headed.