| Published in February 2013, the 51st anniversary edition of the GreenBook Marketing Research Directory is the most reliable and popular guide for
buyers of marketing research and focus group services.
Marketers use GreenBook to find the right market research vendor with the right expertise, at the right price.
GreenBook includes 1,500 market research firms and focus group facilities
across 400+ categories of marketing research services
(see all categories).
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