It doesn’t matter how much knowledge or experience you have about the position you are trying to get with a company if you don’t have a clue who the company is or what they do. It is disastrous to enter into an interview and not be able to tell your interviewer what their company is all about.
Besides, how else are you going to tell them why you feel that you would be a good addition to their company?
Doing Your Research
The best and least time consuming way to get to know more about a company is to look at their website. Absorb all of the general knowledge about them, including the names of key people and their job titles. You should also sift through most of their pages, including the pages that show samples of their services and/or products.
You can also type their company name into Google. Read the articles or press releases listed about them and soak up as much information as possible.
PS: You will also want to do some research on the person that will be conducting your interview.