I got their info from a job fair and gave them my resume. I was contacted a few weeks later with an offer to come interview at their office in Greenville, SC. It was a laid back interview with the Project Manager and the VP and head of HR were in the interview on conference call. It was intimidating at first but everyone is very friendly and just wanted to hear about my background and what I wanted out of the internship. I felt it went pretty well and I accepted an offer from them a week or two later.