Peppercoin - Small payment service that allows physical and digital merchants to sell low-priced content. - http://www.peppercoin.com/
Centipaid Corporation - Offers micropayment solutions using Internet stamps to pay for web site access, email postage, and online content. - http://www.centipaid.com/
Etelcharge.com - Allows customers to charge online purchases to their phone bill. - http://www.etelcharge.com/
Allopass.com - Offers a telephone bill based micropayment system for European webmasters. - http://www.allopass.com/
Pico-Pay - A general purpose micropayments gateway and hosted management server, which uses the revenue garnered from ad clickthroughs to pay for a content hosted by website publishers. - http://www.pico-pay.com/
Paystone Micropayment Solutions - Micropayment solutions for content, games, cartoons, articles, music, video and books selling. - http://www.paystone.com/
Coulomb Ltd. - Provides micropayment solutions for charging web users to view content online. - http://www.coulomb.co.uk/