These are certainly not all the options available. I will continue to add into and update from this list as more products become available.
1.) Avonite; Terrazzo and Dealer locator on Website
2.) Cobre: Copper : Recycled copper sinks . Order online or call for a distributor
3.) Durat: Polyester based material that contains recycled plastics and is 100% recyclable. Email for distributor.
4.) Eleek: Cast metal sinks
5.) Gore Design Co: Erosion Sink
6.) Grenite: Countertops and Sinks, Composite made of recycled materials
7.) Lithistone: Custom Sinks, with concrete composition. Offer, drop in, vessel and integral sinks
8.) Meld USA: Tile, furniture and more. EcoX material is from concrete and recycled materials
10.) Silestone: Dealer locator on website. Countertops and integral sinks
11.) Sink Factory (Used sinks)
12.) Stoneware; Handmade Stoneware clays
13.) Syndecrete : Composite material
Modern Vessel, Rio Grande Imports
15.) Vitrastone: Terrazzo type
16.) Sink that you can take a bath in! Thought this was very interesting!
What to do with old Stainless Steel Sinks