List of companies that has Implemented their own cryptocurrency or Color Coins in their business? Is there a list of companies that has implemented either their own crptocurrency or went with the color coins approach into their business? I'm particularly looking for non-mining related companies that went with the color coins approach piggy backing on top of an existing cryptocurrency. Either they used it as a way of points or actual currency in their business to buy products/services.
This question is too vague, like asking list of companies that use arrays in programming. Colored coins are programming abstractions(just a type of data structure) and when truly used for a technical reason(not for crowdsale) they are under the hood. 
(At work, I have used it as a mechanism to account for scarcity of a resource.)