1. Catawiki: Catawiki is an online auction platform specializing in unique and collectible items. It offers a wide range of categories, including art, antiques, classic cars, jewelry, and more.
2. Heritage Auctions: Heritage Auctions is a renowned auction house that conducts both live and online auctions for a diverse range of collectibles, including art, coins, stamps, jewelry, and sports memorabilia.
3. LiveAuctioneers: LiveAuctioneers is an online platform that connects bidders with live auctions held by various auctioneers worldwide. It offers a variety of categories, including art, antiques, jewelry, and more.
4. Invaluable: Invaluable is an online auction marketplace that showcases items from galleries, auction houses, and dealers worldwide. It offers a wide range of categories, including art, antiques, jewelry, and collectibles.
5. Paddle8: Paddle8 is an online auction platform focused on contemporary art. It features works by established and emerging artists, including paintings, sculptures, prints, and photographs.
6. Bring a Trailer: Bring a Trailer is an online auction platform dedicated to classic and collector cars. It offers a variety of vehicles from different eras and makes.
7. Manheim: Manheim is an auto auction platform primarily used by dealerships and car wholesalers. However, it also offers public sales where you can bid on vehicles.
8. GovDeals: GovDeals is an online auction platform where government agencies sell surplus assets and equipment. It offers a wide variety of items, including vehicles, electronics, machinery, and more.
9. CharityBuzz: CharityBuzz is an online auction platform that sells unique experiences, collectibles, and travel packages to support various charities. It offers a wide range of items from celebrities, athletes, and brands.
10. Local Auction Houses: In addition to online platforms, you can find auctions conducted by local auction houses in your area. These auctions often feature items of local interest, such as antiques, furniture, and artwork.