Thanks for letting me know about your decision.
While I’ll admit that I’m disappointed I won’t be able to work as part of the [Company] team, it truly was great to meet you and learn more about the great work that you’re doing.
I’m excited to keep following [Company] as the team [name a current company goal], and I’ll keep an especially close eye on [project/development you discussed in your interview].
Thanks once again for the opportunity, [Name], and I hope our paths cross again in the future. I’m wishing you and [Company] all the best moving forward.