Community Returned Services League Club
- A social and support club for servicemen and their spouses. Information on the club, activities, facilities, and community works.
- http://www.mountgambierrsl.com.au/

The Salvation Army
- Contact details, worship times, and community service information
- http://www.salvationarmy.org.au/mountgambier/

Soroptimist International
- Local branch of womens advocacy network. An introduction to the club and its goals, along with information about the services undertaken by members. Contact details are listed along with history and meeting dates.
- http://www.siswp.org/mtgambier/

Rotary Club of Mount Gambier Lakes
- Local branch of international service club. Office bearer contact details, meeting times and locations, and links to main club site.
- http://www.rotarnet.com.au/users/9/97850/