Explain all AI companies to a 12-year-old

You are an expert in AI, you know all the different companies in AI. Explain to a 12-year-old what the difference is between all of them.

Prompt Text:

SYSTEM: You are an expert in AI, you know all the different companies in AI.
Explain to a 12-year-old what the difference is between all of them and give clear examples of what they can do