- Attwood Progress Association
- Australian Plant Society (Keilor Plains Group.)
- Australian Plant Society (Melton & Bacchus Marsh Inc.)
- Avondale Heights and East Keilor Residents’ Association
- Bullengarook Landcare
- Cape Schanck Residents Group
- CS on grass
- Deep Creek Catchment Landcare Group
- Friends of Attwood Creek, Westmeadows
- Friends of Emu Bottom Wetlands Reserve, Sunbury
- Friends of Flinders Foreshore
- Friends of Grasstrigger Plant Broadmeadows
- Friends of Jacksons Creek, Sunbury
- Friends of Kororoit Creek
- Friends of Melba Creek, Sunbury
- Friends of Moonee Ponds Creek
- Friends of Norton Road Reserve
- Friends of Organ Pipes National Park Inc.
- Friends of Pyrites
- Friends of Sacred Kingfisher, Westmeadows
- Friends of Skeleton Creek
- Friends of the Island
- Friends of the Lerderderg Inc.
- Friends of the Maribyrnong Valley
- Friends of Toolern Creek
- Friends of Upper Moonee Ponds Creek, Westmeadows
- Friends of Wayside Rd. Foreshore
- Friends of Woodlands Historic Park
- Gisborne Bushwalkers
- Greening of Riddell, Riddells Creek
- Kangerong Ward Action Group
- Kingston Conservation & Environment Coalition
- Macedon Ranges Residents Association
- Maribyrnong Valley Preservation Coalition Inc.
- Melton Bushwalkers
- Melton Environment Group
- Merlynstone Creek Environment Broadmeadows
- Moonee Ponds Creek Coordination Committee
- Mornington Environment Association
- Mount Eliza Action Group
- Pinkerton Landcare & Environment
- RATWISE: Residents Against Toxic Waste
- Residents of Greenvale
- Save the Casey Foothills
- Smiths Gully Landcare
- South Peninsula Indigenous Flora & Fauna Association
- Southern Victoria Community Action Group
- Sunbury Conservation Society Inc.
- Sunbury Progress Association
- Sunbury Residents Association
- Tullamarine Live Steam Society, Bulla
- Upper Yarra and Dandenongs Environment Council (UYDEC)
- Warrandyte Community Association
- Werribee Catchment Management Protection Association
- Werribee River Association
- Wonga Park Residents’ Association
- Woodend/Gisborne Bird Observers
- Wurundjer Kurung Willam Bulluk Inc
Friends of Moonee Ponds Creek
Whittlesea Merri Creek Green Wedge, represented by Friends of Merri Creek
Council: Whittlesea, Hume
Features: River/catchments – Merri Creek