| Company Name | Phone | Web Site | Fax | City | State | |
| ICOM | 425.454.8155 | www.icomamerica.com | sales@icomamerica.com | Bellevue | WA | |
| Iridium | 480.752.5155 | www.iridium.com | info@iridium.com | 480.752.1105 | Tempe | AZ |
| KVH | 401.847.3327 | www.kvh.com | info@kvh.com | 401.849.0045 | Middletown | RI |
| Landfall Navigation | 203.487.0775 | www.landfallnavigation.com | customerservice@landfallnavigation.com | 203.487.0776 | Stamford | CT |