These are organizations that support MMLT on a variety of projects and initiatives, working together to accomplish conservation objectives that we would not be able to without such joint effort.

• Friends of the Carp Hills
• Lanark County Tourism
• Macnamara Field Naturalists Club (MFNC)
• Mississippi Valley Conservation Authority (MVCA)
• Mississippi Valley Field Naturalists (MVFN)
• Nature Conservancy of Canada – Ontario Region (NCC)
• Ontario Land Trust Alliance (OLTA)
• Ottawa Field Naturalists Club (OFNC)
• Rideau Waterway Land Trust (RWLT)
• Municipality of Mississippi Mills