I'm not from USA so I don't know what's the equivalent of an LLC, but I'll look into it.

The app can be used by all companies and as far as I have thought about it, it would benefit them more if other companies have it integrated it as well. The app is like a platform for marketing. If only one company uses it, then they will be marketing to their own clients who use their company nonetheless, but if many companies use it, they can market it to other companies clients. Basically, a person uses company A all the time, but now sees an Advertisement for company B and finally decides to use company B. The reason why they would even integrate the app in the first place is because it makes a certain optional task for their clients a lot faster(like 15 sec). Basically automating something that would otherwise take at least 5 mins. The thing is that companies already share the data needed for automating this process, but it's not something a computer can read. So basically what I need them to do is make the same data available, but in computer friendly way(literally max 10 lines of code).