Asteria Labs 
Features a jewelry and eyeglass cleaner with no alcohol, acids, ammonia or abrasives.
http://asterialabs.com/Powervescent Jewelry Cleaner
A convenient, unique and safe jewelry cleaning tablet formulated to clean and restore jewels and jewelry.
http://www.jewelrycleaner.com
Worleys Wonder Jewelry Cleaner
Features a jewelry and eyeglass cleaner as well as metal polish.
http://www.worleyswonderjewelrycleaner.com/
Nventa Incorporated
Cleaning and care products for platinum, gold, silver, and delicate jewelry.
http://www.nventa.com
Reflections
Offers jewelry cleaner, tarnish remover, and anti-fog that provides ammonia-free cleaning for jewelry, pearls, silver and gold items.
http://reflections.myshopify.com
