As the developer of book titles, business names, business product and service names, mission, vision and brand statements, slogans, taglines and other intellectual property (output) I retain the unrestricted right to refer or not refer to such output as a reference or case study in my portfolio and other places.
However, for confidentiality reasons, I won’t reveal the specifics of any intake information you provide, nor will I reveal any personally identifiable information about you without your permission.
This is not to say that third parties would not be able to use the output to identify you or your company and contact you.
Other than that you own the output, which you can use as you wish.