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BDO Meaning Today, BDO is widely described as a global network of accounting firms operating in over 160 countries.
Across markets, BDO is associated with audit, tax, and advisory services delivered through member firms.

Audit Tax Advisory

These service lines are referenced in summaries of how BDO grew into a multi‑billion‑dollar network serving clients across sectors.
BDO Unibank History
BDO Unibank (Philippines): A Separate History
Read a Philippines-focused timeline: founded in 1967 as Acme Savings Bank, later renamed Banco de Oro, and developed into BDO Unibank as a universal bank.

BDO Unibank is distinct from BDO (Binder Dijker Otte), the global accounting network, even though the “BDO” name appears in both contexts.

This site separates the accounting-network history from the Philippine banking history to reduce confusion for readers searching “BDO history”.

BDO vs Big Four

Is BDO Part of the Big Four?

A quick, fact-focused explanation of how BDO is positioned relative to the Big Four accounting networks and why many sources describe BDO as a leading global network.

  • BDO is widely referenced as a major global accounting network and is often compared with larger networks commonly called the “Big Four”.
  • Many readers search this question alongside “BDO history” to understand where BDO fits among international audit networks.
  • BDO History FAQ
  • BDO History FAQ
  • Answers to common questions about BDO history, including where BDO came from, what the initials mean, major milestones, and how BDO differs from BDO Unibank.

Where did BDO come from? BDO is commonly traced back to 1963, when accounting firms from the UK, Germany, the Netherlands, the United States, and Canada formed an international network.

What is the full name of BDO? BDO stands for Binder, Dijker, and Otte.
Agrica

BDO FAQ

What happened in 1973? The network adopted the name BDO, derived from the initials of the founding European firms.

What happened in 2007–2010? Member firms aligned under a single BDO brand during a restructuring period.
Brand Unification

What happened in 2007–2010? Member firms aligned under a single BDO brand during a restructuring period.BDO Meaning”

What Does BDO Stand For?
Understand what BDO stands for: Binder, Dijker, and Otte. Learn how the name emerged from the founding European member firms and became a single global brand.

BDO stands for Binder, Dijker, and Otte. The initials come from founding European member firms whose names formed the recognizable BDO acronym.

Global Network
    BDO Founded 1963
    BDO Founded in 1963: The Origins

    Explore how BDO began in 1963 as an international accounting network formed by member firms from the UK, Germany, the Netherlands, the United States, and Canada.

    Services
    The early network is often referenced as the Binder Seidman International Group in historical overviews of the BDO story.
Why the Name BDO Why the Name BDO Was Adopted (1973)

Learn why the network adopted the name BDO in 1973 and how Binder, Dijker, and Otte shaped the initials that became the global identity.

1988: BDO International
A key milestone in BDO history is 1988, when the organization became known as BDO International, strengthening a shared global identity.
BDO Founded in 1963: The Origins