AUB Group is the second-largest general insurance broker network in Australia and New Zealand. It has an ownership in brokerage businesses that collectively write over AUD 5 billion in premiums. It also owns equity stakes in 29 underwriting agencies. AUB derives revenue from commissions (from insurers, ultimately paid for by AUB’s customers), based on gross written premium from agencies it owns, and a share of profits from associates and joint ventures. GWP is split among personal (5%), small to medium enterprises (65%), and corporates (30%).