What businesses use CRM systems?

Many businesses can benefit from the use of CRM systems. In general, these businesses can be broken into five vague groups. The first group of businesses would be any business with a sales team, the second group would be any business that utilizes marketing practices. Another group is a business needs to generate quotes and/or invoices, a fourth group would be businesses who value their customers as a priority. Lastly, the fifth general group would be businesses that value efficiency.