Looking for Directory Plugin

I’ve been searching for a while now but have been unable to find what I need. Essentially I’m looking for a plugin where I can enter a businesses name, address, phone, email, website and sorted by business category (or custom variables I can change). Once I enter those in I want it to save in a database and be searchable on a directory page. I’ve looked at some of the directory/phone book style plugins but I have been unable to find something simple that I can easily use.

You can see an example on our current site (don’t look at the design, that’s one of the reasons I’m building a new site): http://alvinmanvelchamber.org/memberuserlist.aspx

Now I’d only be looking for a search by string and category, I won’t need the other two.

If anyone knows of a plugin that may help that would be great, I just don’t have the time to code it myself currently.

Thanks in advance for any assistance provided