Newbie needs help on App concepts

Hey there... We need an app that will track each of our clients' biz process. So it's kind of like a CRM on steroids. In addition to name, address, phone number and contact info, we need to be able to track dozens of items on a per company basis.

We understand how to create the forms for that information, just unsure how to have that form for EACH different company, where we could search for co name and pull up records and edit, etc. for one company and then for another company.

Is there a good starting point for this? We were looking at the task mgmt app but it seems to be too complicated but we're new so who knows.

Thanks for any direction :)