| Hilo Sugar | Hilo | HI |
| Honokaa Sugar | Honolulu | HI |
| Honokaa Sugar | Haina | HI |
| Honolulu Brewing & Malting | Honolulu | HI |
| Honolulu Gas | Honolulu | HI |
| Honolulu Iron Works | Honolulu | HI |
| Honolulu Laundry | Honolulu | HI |
| Honolulu Planing Mill | Honolulu | HI |
| Honolulu Plantation | Honolulu | HI |
| Honolulu Plantation | Aiea | HI |
| Honolulu Rapid Transit & Land | Honolulu | HI |
| Honolulu Shipyard | Honolulu | HI |
| Honolulu Water Works | Honolulu | HI |
| Honorable James. A. King | Honolulu | HI |
| H.R. Worthington | Honolulu | HI |
| Hutchinson Sugar Plantation | Honolulu | HI |
| Hutchinson Sugar Plantation | Naalehu | HI |
| Kaeleku Sugar Company Ltd | Hana | HI |
| Kahe Iv Power Plant | Honolulu | HI |
| Kahuki Plantation | Honolulu | HI |
| Kaiser Cement & Gypsum | Nanakuli | HI |
| Kalihi Pumping Station | Honolulu | HI |
| Kekaha Sugar | Kekaha | HI |
| Kilauea Sugar Plantation | Honolulu | HI |
| Kohala Sugar | Honolulu | HI |
| Kohala Sugar | Kilauea | HI |
| Koloa Sugar | Koloa | HI |
| Koloa Sugar | Puhi | HI |
| Kuakini Hospital | Honolulu | HI |
| La Haina Plantation | Honolulu | HI |
| Laie Plantation | Honolulu | HI |
| Lambert Cole & Company | Honolulu | HI |
| Laupahoehoe Sugar | Hilo | HI |
| Laupahoehoe Sugar | Honolulu | HI |
| Lewers & Cooke | Honolulu | HI |
| Libby's (Libby, McNeill & Libby) | Honolulu | HI |
| Libby's (Libby, McNeill & Libby) | Makawao | HI |
| Lihue Plantation Company Ltd. | Lihue | HI |
| Macroni Wireless Telegraph Company Of America | Honolulu | HI |
| Marconi Wireless Telegraph Company Of America | Honolulu | HI |
| Maston Container Station | Honolulu | HI |
| Matson Navigation | Honolulu | HI |
| Matson Steamship Lines | Kahului | HI |
| Maui Agricultural | Paia | HI |
| Maui Agricultural | Kahului | HI |
| Maui Electric | Kahului | HI |
| Maui Electric | Wailuku | HI |
| Maui Land Devlop & Pineapple Canning | Kahului | HI |
| McBryde Sugar | Eleele | HI |
| McBryde Sugar | Honolulu | HI |
