Island of Hawaii

• Paauhau Plantation
• Hamakua Mill Co.
• Kukaiau Plantation
• Kukaiau Mill Co.
• Ookala Sugar Co.
• Laupahoehoe Sugar Co.
• Hakalau Plantation
• Honolu Sugar Co.
• Pepeekeo Sugar Co.
• Onomea Sugar Co.
• Waiakea Mill Co.
• Hawaiian Agricultural Co.
• Hutchinson Sugar Plantation Co.
• Hawi Mill
• Beecroft Plantation
• Union Mill Co.
• Kohala Sugar Co.
• Halawa Plantation
• Niulii Mill
• Pacific Sugar Mill
• Honokaa Sugar Co.
• Kona Sugar Co.
• Hilo Portuguese Sugar Mill Co.

Island of Kauai

• Kilauea Sugar Co.
• Makee Sugar Co.
• Hanamaulu Plantation
• Lihue Plantation
• Koloa Sugar Co.
• Eleele Plantation
• Hawaiian Sugar Co.
• Gay & Robinson
• Waimea Sugar Mill
• Kekaha Sugar Co., Ltd.
• Grove Farm

Island of Lanai

• Manunalei Sugar Co.

Island of Maui

• Olowalu Sugar Co.
• Pioneer Mill Co.
• Wailuku Sugar Co.
• Hawaiian Commercial & Sugar Co.
• Paia Plantation
• Haiku Sugar Co.
• Hana Plantation
• Hamoa Plantation
• Kipahulu Plantation
• Nahiki sugar Co.

Island of Molokai

• American Sugar Co.
• Kamalo Sugar Co.

Island of Oahu

• Ewa Plantation Co.
• Waianae Co.
• Waialua Plantation Co.
• Kahuku Plantation Co.
• Laie Plantation
• Heeia Agricultural Co.
• Waimanalo Sugar Co.
• Oahu Sugar Co.
• Honolulu Sugar Co.