BDO in Australia | 87,998 followers on LinkedIn. IDEAS | PEOPLE | TRUST | BDO is a trusted adviser to clients seeking audit, tax and advisory services. As one of the world’s leading audit and accounting organisations, we have clients of all types and sizes from large corporate organisations to private businesses, entrepreneurs and individuals across an array of industry sectors. At BDO, we are guided by our values that are the foundation of what we deliver: IDEAS | PEOPLE | TRUST.