There is a number of membership plugins on the market today.
In the latest months I had a number of clients that operates B2B, and need a functionality that I find only in the Whishlist Members plugin, and want to give them an alternative because of some limitations.
With WLM the admin can create custom registration forms with custom user fields inside, and associate an encrypted unique address to each them. The client uses this functionality to create a different registration form for each company, and let the company bulk register their employees by themselves. I can then tell what company the new user belongs to through a special hidden field added to each registration form and take the appropriate actions in my plugins.
I could recreate the same functionality in a plugin by myself but that would be just a registration plugin and not a complete membership solution, which is what I need.
I wonder if you guys know of any membership plugin that offers this functionality.