
In 1982, John joined National Analysts, a Division of Booz Allen &
Hamilton. Specializing in telecommunications markets, John quickly rose
to his position as a partner and six years later, he and another partner
acquired National Analysts from Booz Allen. For the next 10 years John
served as President and CEO and became Chairman in 2002.
John is considered one of the leading experts in B-to-B market
segmentation. Throughout his career, he helped some of the most
prominent corporations in the world use segmentation to establish,
maintain and grow market share. His B-to-B segmentation clients have
included: AT&T, BellSouth, Chevron, Consolidated Edison, Duke Energy,
Eli Lilly, Electric Power Research Institute, Exxon Mobile and FedEx.
His book, Segmentation Marketing, was written in 1992 with Carl
Finkbeiner and has been read by thousands of B-to-B marketers. It is
still considered one of the seminal texts in business market
segmentation today.