The following directory contains sites that auction a wide variety of stamps, philatelic related items, and supplies for both the beginner and seasoned stamp collector.

• Stamps 4 Collectors
• Stamp Wants Auctions
• Canadian Stamp Auctions
• MAT Stamp Auctions
• Sam Houston Duck Company
• eStamp Auctions
• Auction-123
• Robert E. Lippert Stamp Auctions
• Robert A. Siegel Auction Galleries Inc.
• Stamp Auction Network
• Sandafayre Stamp Auctions
• Stamps-pl.com (Polish)
• Vance Auctions
• Count Philatelic Auctions (British)
• Corbitts
• Stamp Center Dutch Country Auctions
• All Nations Stamp & Coin
• Raritan Stamps
• Playles Online Auctions
• Stamp Websites
• Bagstogo Stamps...GB First Day Cover Stamps. Presentation Packs + More. Good Service, Quality & Price, Online Catalogue with over 16,000 Scans, Weekly Specials
• Dennis R. Abel Stamps for Collectors.... a full service stamp dealer since 1972
• Stamp Forum - post your collections, want lists or general stamp stuff
• Classic Philately-Till Neumann
• Namib Stamps - dealers in fine Africa, British Africa, German Colonial and Topical Stamps

Grading and Authentication

PSE