| Business | Phone |
| Auction Real Estate Po Box 84983, Seattle 98124 | (206) 654-9515 |
| Bidadoo 815 E Pike St, Seattle 98122 | (206) 709-2022 |
| Bidadoo Auctions 558 1st Ave S 100, Seattle 98104 | (206) 442-9000 |
| Bushell's Auction House Inc 2006 2nd Ave, Seattle 98121 | (206) 448-5833 |
| Cine 109 University St, Seattle 98101 | (206) 264-9359 |
| Cks Auction 11544 Phinney Ave N, Seattle 98133 | (206) 417-5168 |
| Hugbrannon Benefit Auction 2427 Warren Ave N, Seattle 98109 | (206) 691-3977 |
| April Brown Auction Svc Po Box 77214, Seattle 98177 | (206) 542-9617 |
| Hjc Corp 300 E Pine St, Seattle 98122 | (206) 323-1066 |
| Jerry Toner Fundraising Auctnr Seattle 98107 | (206) 782-6198 |