Graphic Designing - Compulsory depart of every company ?

[sarahemi]

I was unaware of the importance of a graphic designer in the market unless i became the graphic designer. When i was looking for a job after completion of my diploma in graphic designing. I saw many graphic designing jobs. Almost every company needs it. Some companies were hiring for ae logo designing and some for web designing. Then i realized that the there is a massive scope of graphic designer and more in future. I think in every company there is a department of designers. Correct me if i am wrong?