Dear Client,
I have done the 40+ Magento 1 to Magento 2 migrations with successfully. I have been working since 2013. Customer sanctification is my main goal.
Your all design, module, functionalities, the extension will remain as it is. I migrate the complete product details, customer data, and order all the things.
I shall migrate from Magento 1.9 to 2.3.5.
Thanks,