PPCGeeks - Mass Text Messaging Application for catagories?

Hey guys. I am looking for an application freeware or payware, that allows you to do mass text messaging to particular catagories already set up in your phone.

I have power SMS, however it does not allow you to pull from your pre-configured contacts, it makes you create new messaging lists to send out a blast text. What I am looking for is this: Lets say I have a category in my phone for people that work for a particular company. I want to be able to browse in my phone, select everyone under that company and send them all a text message at once.

Unfortunately for me, it is not plausible to create my own categories as I am constantly adding and removing people working for a partciular company. I have outside sales rep that are all stored in my phone under one company name, and I need to be able to send them all a text at once, however I need it to pull from the existing list.

Does anyone know of an application that allows you to do this? What I need to be able to do is go to the application, select a category (such as friends, business, a particular company, ect.) and send a text to everyone that falls under that category as saved in the phones default contact manager.

Thanks a lot for all the help guys.

-Sayajin