Shortly thereafter Paul Rand came with his iconic rendering of the IBM logo in 1956 Ivan Chermayeff and Tom Geismar founded a design firm that would take things one step further.
“They revolutionized the field when they created simple, bold, memorable, and whimsical identities for companies in a time when soulless corporate modernism was the trend,” said Dan Covert, whose short documentary, 60 Years of Logos, details the contributions of the grandfathers of logo design. “And because of that, their work has stood the test of time.”
Here you can see some of their most iconic (literally) logos:
Check their work on their website: http://www.cghnyc.com