Notification Letter of Business Name Change
City, State, Zip]
This letter is to inform you that we have recently changed our business name from [old business name] to [new business name]. Please be advised that there is no change in management. By the name change, we hope to expand the company as well as keep up the good reputation we have had for over  years. We will continue providing the same services.
Thank you for being one of our valued customers. For any inquiries, feel free to call us at (phone-number) between 9am and 5pm PST.
City, State, Zip:
Thank you for your prompt attention to this matter.