Looking for content writers located in the US!

We are looking for content writers located in the US that have great experience with aggregating primary and secondary research as part of their papers. We need the freelancers to be able to share samples of content targeted to an enterprise executive audience. Experience writing or ghostwriting published articles in the likes of Forbes, Bloomberg BusinessWeek, Fortune, the Economist etc. will be a great advantage! We are looking for freelancers to reach out to on an ongoing basis for both small and large projects.