Why do companies use an 085 number?

Because it is not tied to any specific geographic area, an 085 number gives companies a national presence. This is ideal for a company with multiple locations in the Netherlands or with customers throughout the country.

Another advantage is that an 085 number can easily move with a company, even if the (head office) relocates to the other side of the Netherlands.

Additionally, an 085 number is recognizable as a business number. It also creates a professional impression.