Number of employees
GSD&M is an American advertising agency headquartered in Austin, Texas. It was founded in 1971 by graduates of University of Texas at Austin – Roy Spence, Judy Trabulsi, Tim McClure and Steve Gurasich, and others, as AdVantage Associates. After the 1972 political campaign for former Texas Senator Ralph Yarborough, it re-organized with the four principals, as GSD&M. Since 1998, GSD&M has been part of the Omnicom Group. A satellite office is located in Chicago, Illinois.
In the 1990s GSD&M began to acquire more national brands outside of Texas and was regarded as a "creative hot-shop." The agency relinquished Chili's, DreamWorks, Frito-Lay, Fannie Mae and UnitedHealthcare in 2006–2007. The agency's Omnicom sibling, BBDO, was given the lead on the AT&T account, although GSD&M still has a portion of the business.
The agency was known as GSD&M until August 27, 2007 when it changed its name to GSD&M's Idea City. "Idea City" was previously the name of the agency's Austin headquarters. The "Idea City" name was dropped from the firm name in January 2011.
On February 5, 2009, GSD&M founder Roy Spence published It’s Not What You Sell, It’s What You Stand For. The book, co-authored with Haley Rushing, is a business book that suggests the key to high-performing organizations is that they have a purpose. Purpose, according to the book, is defined as "a definitive statement about the difference you are trying to make in the world."
GSD&M uses "Purpose-based branding" in its approach to their clients.
In January 2016, Blue Bunny Ice Cream appointed GSD&M as its lead media partner.
- "GSD&M Advertising - Company Profile, Information, Business Description, History, Background Information on GSD&M Advertising".
- Imperato, Gina (October 1997). "Greetings from Idea City". Fast Company. Retrieved 2008-08-09.
- "Idea City: GSD&M Retools for the Future," Adweek Online December 27, 2007. 
- "GSD&M Turning 40, Drops ‘Idea City’", AgencySpy, January 27, 2011.
- http://www.adweek.com/aw/content_display/news/agency/e3ia48763163f8b981b43639760b99647cf GSD&M Finds Renewed 'Purpose'
- "Ad Council Classics: "I am an American"". Archived from the original on 2012-04-02. Retrieved 2012-06-15.
- "Blue Bunny Picks GSD&M as Media Partner for Upcoming Brand Refresh". Retrieved 2018-06-11.