I want to transfer all data from one company to another company for that I need help from support team of quickbook

Hi there, 

Thanks for reaching out for support here in the Community. I can appreciate that you're looking to get a fresh start in a brand new QuickBooks Online account. I'd be happy to shed some light on your options. 

It's important to note that there's no way to move all the data in your existing QuickBooks Online account to a new QuickBooks Online account. At least not directly through the program itself. There's a third-party provider called Chronobooks, which some users have used to create a copy of their existing QuickBooks company file, and then restore this data into a new account. As this is a third-party program, the process to do this would have to be discussed with them and their support team. Here's a link to their website so you can see if this would be the right choice for you: https://www.chronobooks.com/.

Alternatively, there's a few things you can import and export from within your QuickBooks Online account directly. To export data, click the Gear icon > Export Data. You're able to export the General Ledger, Profit and Loss report, Balance Sheet, Trial Balance, and Journal report. You can also export your Customer, Employee, and Supplier list. 

To import data into a new QuickBooks account, click the Gear icon > Import Data. You can import Bank Data, Customers, Suppliers, Chart of Accounts, Products and Services, Invoices, and Bills. Importing and exporting your data won't help in moving everything from one account to the other, but it can move the main components of your account into a new company file. 

I hope this helps to steer you in the right direction. Let me know if you have any questions. 

Cheers.