How many devices can HA handle with integration to HA Cloud

Hello everyone
I am planning to start a Home automation company,so I want to use home assistant and I will control all the devices through APIs from a custom developed app of my own branding. I want remote access so I am gonna choose HA CLOUD .
I am struck here whether a single Home Assistant Cloud can control around Almost 500 devices,
Since it is a automation business we should focus on scalability and profits
And if possible please give suggestions where can use any alternatives

Thank you in advance :slightly_smiling_face:

HA Cloud controls nothing, it is just remote access to a server that controls everything.

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