Chief Executive Officer and Co-Founder, Insider. Insider Inc., originally called Business Insider Inc., is an American online media company known for publishing the financial news website Business Insider and other news and media websites. Frequent guest on CNN, MSNBC and NPR; has contributed to the Atlantic, Slate, Newsweek International, the New York Times, Fortune, New York, Financial Times and other publications. Author of “The Wall Street Self-Defense Manual: A Consumer's Guide to Investing”.