| Business | Phone |
| Tomahawk Island Marina 300 Ne Tomahawk Island Dr, Portland 97217 | (503) 289-5511 |
| South Channel Dock 315 N Bridgeton Rd, Portland 97217 | (503) 289-2895 |
| Columbia Crossings-Hayden Is 515 Ne Tomahawk Island Dr, Portland 97217 | (503) 283-2444 |
| Columbia Way West 173 Ne Bridgeton Rd, Portland 97211 | (503) 422-8487 |
| Larson's Moorage 14426 Nw Larson Rd, Portland 97231 | (503) 286-1233 |