Currently, EqualTo Sheets data is stored in the US on Heroku. We have a signed DPA with Salesforce (owner of Heroku), so as to maintain GDPR compliance. Additionally, we can provide self-hosted instances to Enterprise customers, feel free to reach-out to me (email in my profile) if you'd like to discuss this further.

> Asking because your subprocessors list doesn't give an immediate answer.

Fair complaint :) I'll update our subprocesser page tomorrow to make this clearer.