BDO

Largest network outside the Big Four

Overview

BDO reported network revenue of US$11bn (€10bn) for the year ended 30 September 2025, up 4% in US dollars; including its alliance firms, revenue was US$16bn[5]. The network-only figure is used here because RSM, the next comparable network, now reports without alliances[7]. BDO had more than 94,900 people in 870 offices[5]. In the 2026 IAB World Survey its accounting-services fee income of US$1.61bn was second only to ETL Global’s[18].

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