>>“You currently allow people to switch between Hubspot accounts, provided that they have the same email address in both accounts - this does not make much sense.”
Wait. What?
While we support the idea to offer switching between accounts using multiple email addresses and have upvoted this thread, switching between multiple HubSpot accounts while using the same email address makes perfect sense. In fact, it is the preferred way to use HubSpot both internally as a HubSpotter AND as an agency which supports multiple clients at different organizations.
Furthermore, HubSpot certifications, essential components in both evaluating HubSpot expertise and in using the platform, are tied to A SINGLE EMAIL ADDRESS. Again, making perfect sense.
Note: The workaround is to use a separate browser, or an incognito window for the secondary HubSpot login.