Looking for a wordpress bridge to handle new project

[Steve Bullman]

I am currently using Spanners company directory app on a project, which is going very well.  My next step is to create 2 wordpress sites on different domains which will guide the public to my IPS site to add a listing.  Initially I was just going to have them click on a link from the wordpress site.  However I would like to make it as simple as possible and am looking at options so they can fill in all the fields on the wordpress site and a company listing will be automatically created on the IPS site.  Does anyone know if theres an existing plug in that would handle something like this?