Commonwealth Bank of Australia insurance division CommInsure has been ranked top insurer in the group risk category in terms of market share, according to data from researcher Plan for Life.
The result was thanks largely to the loyalty of clients such as AustralianSuper, a CommInsure spokesman said.
When 10 of CommInsure's top 30 clients went to tender last year, the insurer retained them all.
The most substantial tender was for AustralianSuper's group life policy - the largest in Australia.
The $20 billion industry fund signed on with the insurer in November.
Industry fund Care Super also appointed CommInsure as part of its strategy to improve and expand its insurance offering to members.
