使用分隔符在ListView中显示JSON

I want to be able to take the JSON data and format it into a ListView with each of the outermost objects as the headings. For example, there should be a divider for "Company A" and all of its projects under the divider. Then there should be the "Company B" divider and it's project under that header. Here's an example of a JSON response I'll be working with. I know how to parse the JSON, just not how to display it.I want to be able to take the JSON data and for