Dear …
It brings us great pleasure to see that you have chosen __(company name)__ as your new __(type of product/service)__ provider. We intend to do our best to ensure that you receive the highest __(quality products/level of service)__ with the quickest response time.
We know that our success comes only from valued customers like __(name of customer’s company)__ and we appreciate the confidence you have placed in us. Rest assured that we are here to make sure that you are happy with the choice you made in choosing __(company name)__. Please don’t hesitate to call me directly at __(phone #)__ if there is anything I can do for you.
Thank you for your business, __(first name)__. It is a privilege to have the opportunity to serve your __(type of product/service)__ needs and we are looking forward to many years of a mutually rewarding business relationship.
Sincerely,