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Big Four: An In-depth Look at Key Players in Accounting and Banking

An extensive exploration of the Big Four accounting firms and the major

The term Big Four can refer to two prominent groups: the largest global accounting firms and the major high-street banks in the UK. This article delves into their history, significance, roles, and impact on the global economy.

Accounting Firms

The Big Four accounting firms, consisting of Deloitte, Ernst & Young (EY), KPMG, and PricewaterhouseCoopers (PwC), have evolved over decades. They dominate the audit, tax, consulting, and advisory services markets worldwide.

  • Deloitte: Founded in 1845 by William Welch Deloitte in London.
  • EY: Founded in 1989 from a merger between Ernst & Whinney and Arthur Young & Co.
  • KPMG: Founded in 1987 from a merger between Klynveld Main Goerdeler and Peat Marwick International.
  • PwC: Founded in 1998 from a merger between Price Waterhouse and Coopers & Lybrand.

High-Street Banks

The UK’s major high-street banks, initially the “Big Four,” include Barclays, Lloyds, HSBC, and Royal Bank of Scotland (RBS). These banks have shaped the UK’s banking landscape over centuries.

  • Barclays: Founded in 1690 in London.
  • Lloyds: Founded in 1765 in Birmingham.
  • HSBC: Established in 1865 as The Hongkong and Shanghai Banking Corporation.
  • RBS: Founded in 1727 in Edinburgh.

Accounting Firms

The Big Four firms offer several services:

  • Audit and Assurance
  • Tax Consulting
  • Advisory Services
  • Risk Consulting

High-Street Banks

Key services provided by these banks include:

  • Retail Banking
  • Corporate Banking
  • Wealth Management
  • Investment Banking

Accounting Firms

  • 1989: The formation of EY through a major merger.
  • 1998: The establishment of PwC from the merging of Price Waterhouse and Coopers & Lybrand.

High-Street Banks

  • 2008: The financial crisis impacting banks globally, leading to government interventions.
  • 2012: Barclays’ involvement in the LIBOR scandal, affecting its reputation.

Accounting Firms’ Functions

The Big Four are known for:

  • Audit Services: Ensuring accuracy and compliance in financial statements.
  • Tax Consulting: Offering solutions for tax planning and compliance.
  • Advisory Services: Providing strategic business advice.
  • Risk Consulting: Identifying and mitigating risks.

High-Street Banks’ Functions

Major banks provide:

  • Retail Banking: Everyday banking services for individuals.
  • Corporate Banking: Financial services for businesses.
  • Investment Services: Wealth management and investment opportunities.

Accounting Firms

  • Global Influence: These firms set auditing standards globally.
  • Economic Impact: They contribute significantly to financial stability.

High-Street Banks

  • Economic Backbone: Essential for the functioning of the economy.
  • Financial Services: Provide critical financial services to individuals and businesses.
  • Audit: Examination of financial records.
  • Consulting: Professional advisory services.
  • Retail Banking: Banking services for the general public.
  • Corporate Banking: Financial services for companies.

FAQs

What services do the Big Four accounting firms provide?

They offer audit, tax consulting, advisory, and risk management services.

What are high-street banks?

High-street banks provide retail and corporate banking services and are the backbone of personal finance.

Why are the Big Four accounting firms significant?

They audit most of the world’s public companies, setting financial standards globally.
Revised on Monday, May 18, 2026