There are 14 or so, plus the entire European Union. They have set up trading systems that are comparable to industrial carbon pricing.
Many more countries have put a price on carbon for industry in a different way, including Germany, Austria, Montenegro, Australia and Kazakhstan.
It's important to mention that these countries are doing very well economically. In fact, most of the countries with the greatest economic growth have cap and trade systems, including Indonesia, China, Mexico and many others.