I first heard about CoStar from an employee referral. Soon after I submitted my application online, I was told I would be scheduled for a phone interview later that week. The phone intervew only lasted 10-15 minutes, but it was question after question and it appeared the interviewer was used to conducting these multiple times a day, every day. But at the end of the phone interview, I was told I would be set up for an in person interview early next week. I had my in person interview at the I Street office in NW Washington, DC. I was told I would be meeting with the research director and then the head of the research dept, but with little explanation I ended up only meeting with the director and then shadowing a recent hire. I thought the interview went well, but then I was literally shown the door and never received an offer. Overall, I was not very satisfied with the level of professionalism shown through the interview process.