The work of design companies includes everything from minor details such as production of the film, up to its title and viewing to the audience. The 3 main factors concern Production, Distribution and Exhibition, which in turn determines the success/failure of the film, and without a design company, much of this would not be possible. The company I found the most intriguing was White Rabbit Design Company, who also focus on TV and advertising. Their founder (Steve Hardie) has been involved with Star Wars VI, as a production assistant and part of the art unit in some Hammer Horror films. His vast experience in film/TV has enabled the growth of the company to become well known and therefore more popular when collaborating with other companies/productions. The companies' work has also covered genres in photography, architecture and graphics which makes up the general base of a design company and its subdivisions included within it. All of these factors are what are included within a design company, which contributes towards different parts of the work they do.
Along with analysis of White Rabbit, below are some of a large amount of titles, from www.artofthetitle.com which I find interesting and create a certain feeling/emotion towards them, similar to something a company would include in their production: