| Business | Phone |
| Columbus Line Usa Inc Po Box 5086, Cleveland 44101 | (216) 741-1100 |
| Upper Lakes Shipping Ltd 20800 Lake Rd, Cleveland 44116 | (440) 333-9996 |
| Tolmar International Inc 6929 W 130th St # 304, Cleveland 44130 | (440) 886-3434 |
| Great Lakes Assoc 20325 Center Ridge Rd # 600, Cleveland 44116 | (440) 356-1950 |
| Hapag-Lloyd America Inc 24600 Center Ridge Rd # 120, Cleveland 44145 | (440) 835-4130 |
| Hyundai America Shipping Agncy 24500 Center Ridge Rd # 265, Cleveland 44145 | (440) 835-0930 |
| K Line America Inc 24600 Center Ridge Rd # 250, Cleveland 44145 | (440) 892-8686 |
| Oglebay Norton Co 1001 Lakeside Ave E # 15, Cleveland 44114 | (216) 861-3300 |
| Mitsui Osk Line 20325 Center Ridge Rd, Cleveland 44116 | (440) 331-8400 |
| Mediterranean Shipping Co 28045 Clemens Rd # D, Cleveland 44145 | (440) 871-6335 |