Billings on the account are estimated at $120 million.
"This greatly strengthens our B-to-B credentials and is important for our long-term growth," agency President Rick Carpenter said in a memo to staff.
The agency, which handles creative duties for the likes of Anheuser-Busch, McDonald's and State Farm, has been in a lengthy new-business dry spell. And the pursuit of a major B-to-B account is evidence that it is looking beyond its traditional areas of expertise in packaged food, beverages and financial services in an attempt to remedy that.
The agency's only current B-to-B client is Emerson Electric.