How do I search the chat history of the whole company?

I am not sure if you can search chat on company level rather than individual level.

However please check the below link if that helps you:

https://support.ringcentral.com/article/9016.html

@Stephen Colebrooke It looks like your account has a CSM that can assist with this. I'll reach out to them directly to connect with you on this matter.
Feel free to shoot us a direct email if you should need any additional assistance.

Hi @Stephen Colebrooke, Message data export is the feature you need. For instructions, go to https://support.ringcentral.com/app/admin/desktop-web/requesting-message-data-exports-ringcentral-app.html. Let me know if this helps.