If I was charged with identifying key leaders in an industry, geographic area, or field, where would I start? I would go to Leadership Directories Online Service. And yes, it is expensive, but it is the best information out there.
Leadership Directories, Inc. (LDI) provides high-quality contact information for the leaders of major United States government, business, professional, and nonprofit organizations. The company's goal is to research, compile, verify, and produce the most current and accurate contact data available for the institutional leadership of the United States, and offer it to its subscribers in the format that best suits their needs.
Leadership Directories publishes fourteen Yellow Books, each a specialized directory of a particular area of American activity. As a whole, the collection is known as The Leadership Library®, a unique database of nearly a half million leaders at over 40,000 organizations. The information contained in this database is available to its subscribers in print, online, on demand, and as lists or datafeeds. Leadership Directories content may also be accessed through distribution partnerships with select technology and content companies. Changes to The Leadership Library® are verified and updated daily on the Internet by its staff of editors.