I've no experience here, but a decent bottle of wine, along with a simple thank you card would almost certainly be appreciated. It might depend how personal of

I've no experience here, but a decent bottle of wine, along with a simple thank you card would almost certainly be appreciated. It might depend how personal of a relationship you have, our will have with this investor though. I would just say what you did here, you're really appreciate of their confidence in your company and product, and look forward to the future.