[2] Winer was a consultant for American Airlines, New York Telephone, Ogilvy & Mather, and Dancer Fitzgerald Sample.
In 1986, Winer joined the marketing firm, Nashville Consulting Group to perform conjoint analyses related to purchase decisions.
[6] He has taught at the Indian School of Management and Entrepreneurship, Mumbai and has written three books and over 70 papers on marketing.
[1] Winer has supported Sharpie's modern advertising methods, calling it "a really interesting, multichannel campaign".
[6] He has spoken about the difficulties when multiple brands are in a marketplace, and thinks the choice can sometimes overwhelm consumers.