Scenario based URL in MVC4

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ASP.NET

MVC4

I have a login action method and the corresponding view. The URL is : http://website/login

I was asked to show a different URL, along with the corresponding company name, when the user clicks this website link in another website. For ex: http://website/ThroughCompany1Login and http://website/ThroughCompany2Login etc

But the functionality inside both the action methods should be the same. I am not allowed to use attribute based routing, please let me know your suggestions. Should I end up repeating the Action methods and the views for this?

Thanks
Vijendra