| Business | Phone |
| American Auction Assoc Frederick 21701 | (301) 639-8871 |
| American Auction Gallery Route 144 E, Frederick 21701 | (301) 662-3530 |
| Anne-Lynn Singing Auction Frederick 21701 | (301) 662-6183 |
| Community Sales Auction 5305 Jefferson Pike # B, Frederick 21703 | (301) 473-4301 |
| Null Curtis & Summers 10534 Liberty Rd, Frederick 21701 | (301) 748-3211 |
| Norman O'Neal 207 Meadowdale Ln, Frederick 21702 | (301) 663-5421 |
| Trout Auctioneers Inc 9801 Hansonville Rd, Frederick 21702 | (301) 898-9899 |
| Wolfe Industrial Auctions Inc 9801 Hansonville Rd, Frederick 21702 | (301) 898-0340 |