I'm trying to put together a comprehensive list of all the flooring companies out there that sell engineered floating, click together/locking (glueless) hardwood flooring so I can see every option of style and finish available to choose from before I make a decision. Can anyone help?

There are literally hundreds of manufacturers globally, so your request is not only un-doable, but totally un-necessary. How many versions of say red oak natural do you really need to see to make your choice?