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Bob Dorf
Bob Dorf, a serial entrepreneur, is often called the “midwife of Customer Development.” Dorf is co-author with Steve Blank of The Start-up Owner’s Manual. Entrepreneurial since age 12, Dorf founded six companies, most explosive of which was Marketing 1to1 (later Peppers & Rogers Group), a former Inc. 500 company. He’s invested in or advised more than a score of start-ups and teaches Customer Development at Columbia Business School.