Cluster group Austbrokers' net profit has risen 25% to $5.85 million due partly to a steady series of acquisitions.

Adjusted net profit - the company's preferred yardstick because it omits non-core business activities - was up 38% to $6.5 million in the company's first-half results to December 31.

Last year Austbrokers picked up Strathearn Insurance Brokers and Rivers Insurance Brokers in addition to a number of smaller operators.

The broker network currently has 39 member firms across Australia.

CEO Lach McKeough told insuranceNEWS.com.au he is satisfied with the financials and says Austbrokers will continue to look for buyout opportunities.

"There aren't too many the size of Strathearn sitting out there, which is a serious business in its own right," he said. "But we are actively pursuing acquisitions."

Growth for the full financial year is expected to be between 13% and 17%.