Yes, you can do it, 9130347993151966.

QuickBooks Online has the option to change your email address. This way, you'll only have to use one credential in accessing your two companies. I can definitely guide you in doing it.

Here's how:

1. Log into QuickBooks Online using your second Gmail account
2. Click the Gear icon.
3. Under Profiles, select Intuit Account.
4. In the Intuit window, click Edit Email address under the Sign In & Security section.
5. Enter your primary email address and its password.
6. Hit Save to complete the process.

I've added an article that will help you add Intuit's service email addresses in your email's list of accepted senders. This way, you'll receive important email messages from us.

There you have it! The Community has your back, so please let me know if I can be of any additional assistance. Wishing you well.