| Business | Phone |
| Google Inc 701 5th Ave # 42, Seattle 98104 | (206) 262-8220 |
| Foundry Interactive 4444 Woodland Park Ave N #212, Seattle 98103 | (206) 925-9000 |
| Seattle Search Marketing Services 1629 S Weller Street, Seattle 98144 | (206) 218-2525 |
| Musson Media Consulting 93 S Jackson St, Suite 88210, Seattle 98104 | (425) 387-5050 |