Business Week, Entrepreneur and similar business oriented publications generally contain such case studies. As I mentioned in my presentation, the SBA maintains data that may be helpful relative to business success and failure. Additionally, please check the SCORE website (www.score.org) for additional insight. SCORE is comprised of retired executives who can provide you with mentoring relative to particular issues.
In the lifescience area, companies like Genentech and Amgen are most notable. Others less notable include Millennium and Human Genome Sciences.
All the best,