If you're looking for local sponsors for your conference in Melbourne, it'd be a good idea to get in touch with a few key government organisations that might be able to help.  Business Victoria is a great resource for businesses in the region and might be able to help you out with funding or sponsorship opportunities for your event. The City of Melbourne also offers grants and sponsorships for events that benefit the local community and economy, so they're a key partner to approach. Additionally, Visit Victoria is instrumental in supporting events highlighting Melbourne as a premier destination and attracting tourism. Finally, the Department of Jobs, Economic Development and Innovation can assist with initiatives contributing to Victoria's economic growth. Engaging with these organisations can help you secure the sponsorship and support needed to make your conference successful.