• St. Catharines
  • Avondale Dairy Ltd.
  • Mason's Dairy
• St. George
  • Sunny Hill Dairy
• St. Jacob's
  • St. Jacob's Dairy
• St. Mary's
  • Coronation Dairy
  • Hearn's Dairy
  • Hooper's Dairy
  • Maple Leaf Dairy
  • Parkview Creamery
  • St. Mary's Creamery
  • Herb Sparling's Dairy
  • Stillman's Creameries Ltd.
• St. Pie X
  • La Laiterie Bergeron
• St. Thomas
  • Crocker's Dairy
  • Elgin Dairies Ltd.
  • Homeland Dairy
  • Meadowbrook Dairy
  • Re-Echo Dairy
  • Sanitary Dairy
  • Shaw's Dairy
  • St. Thomas City Dairy
  • St. Thomas Pure Milk Co. Ltd.
  • Western Dairy
  • Yarmouth Dairy
• St. Williams
  • A.S. Dedrick
• Sarnia
  • Curly Allen's Dairy Ltd.
  • Harris Dairy
  • W.H. Marks
  • Purity Co-operative Dairy
  • Ridealgh Dairy
  • Sarnia City Dairy
  • Silverwood's Dairies Ltd.
  • Smith Bros. Dairy
  • Tunnel City Dairy
• Sault Ste. Marie
  • Johnstone's Dairy
  • Levo's Dairy
  • Model Dairy
  • Palmer's City Dairy
  • Soo Dairies
  • Standard Dairy
• Scarborough
  • Bell's Scarboro Dairy
  • Regent's Park Dairy
• Schreiber
  • Palm Dairies Ltd.
• Scotland
  • Pine Grove Dairy
• Seaforth
  • Dale Nixon
• Simcoe
  • Caswell Dairy
  • City Dairy Co. Ltd.
  • Jacksons Dairy
  • K.F.O. Dairy
  • Simcoe Sanitary Dairy
• Smiths Falls
  • McCaw Bros. Dairy
  • Smiths Falls Dairy
  • Standard Dairy
  • Tye's Dairy
• Smithville
  • Hillcrest Dairy
  • Merritt's Dairy
• Smooth Rock Falls
  • Laiterie Millview Dairy
• South Porcupine
  • Crown Dairy
  • Palm Dairies Ltd.
• South River
  • Johnson's Dairy
• Southampton
  • Southampton Dairy
• Stamford
  • Woodgate's Dairy
• Stamford Centre
  • Taylor's Dairy
• Stayner
  • Besse's Dairy Products
• Stirling
  • Stirling Dairy
• Stittsville
  • George Chambers
• Stoney Creek
  • Stoney Creek Dairy
• Stouffville
  • Maple Leaf Dairy
• Stratford
  • Avon Dairies
  • Elschner
  • Finnegan's Dairy
  • Melroy Dairy
  • Stillman's Creameries Ltd.
  • Stratford Creamery
  • United Dairies
  • Wake's Dairy
• Strathroy
  • Benstead's Jersey Dairy
  • Downhamdale Dairy
  • Hunter's Jersey Dairy
  • Mary-Bell Dairies Ltd.
  • Strathroy Creamery
• Streetsville
  • Streetsville Dairy
• Sturgeon Falls
  • Leach's Dairy
• Sudbury
  • City Dairy
  • Eplett's Dairy
  • E.K. Hautamaki's Dairy
  • Palm Dairies Ltd.
  • Standard Dairy
  • Sudbury Dairy Ltd.
  • Sudbury P&C Co-operative Dairy Ltd.
• Sutton
  • Briars Dairy