Few companies stick around for years unless they are doing something right. Where time in business becomes much more important is when dealing with a PC or component manufacturer . So for example, if a PC maker is offering a two-year warranty, then I would be look to see if they have been around for at least two years. In my experience, most companies will be honest about this because they know how easy it is to verify the figure, and they don't really figure they have any reason to lie. If you find a vendor that appears in all other respects to be very good but has not been in business for very long, you may still have a good experience with them.
Many new companies are quite excellent, and everyone starts out new at one point.
But you should take precautions to protect yourself, by thoroughly researching the company to ensure that it is legitimate. The less time the company has been in business, the more important this is. Finally, recognize that there's no guarantee that a company that's been successfully manufacturing and selling for a decade won't go out of business next Tuesday. By looking at the company's length of time in business, though, you are putting the odds in your favor. You can further increase the odds by considering the company's time in business in the context of their financial stability .