Our Locations

Mainstream Group Holdings Limited is a leading listed fund administrator with offices around the world so it is easy to meet with us or get in touch.

Mainstream’s directors opened our first office in Sydney, Australia, in 2006 after successful management consulting careers in outsourcing and shared services.

Our Melbourne, Australia, office opened soon after in 2007, followed by Singapore in 2012 and Hong Kong in 2013. In 2016 we acquired New York based Fundadministration, Inc and Galileo Fund Services Limited in the Isle of Man and also opened our Malta office. In 2017 Trinity Fund Administration in Ireland and the Cayman Islands became part of the Mainstream family.

Today we administer over AUD $132 billion in funds and employ more than 233 people.

Learn more about our fund services in each country:


Over $132 billion in funds are outsourced to Mainstream: