Pentagram is one of the largest graphic design companies in the world. This company is based out of London, and there are also locations in New York, San Francisco, Berlin and Austin.
They have many reputable clients. Just a few of the clients include: Nike, Tiffany & Co., 21st Century Fox, United Airlines, and more.
I would choose to work for the design company because of how simple and classy their design usually is.
I am familiar and like the design of most of the companies Pentagram works with.
Here is an example of one of their designs, Saks Fifth Avenue. I especially like this design because of the black and white color scheme and cursive typography.
Photo Courtesy: Lib Magazine