I wouldn't think any publicly traded company, nor any subsidiary of a non-startup, qualifies as a startup, even if they previously did before they exited. The t

I wouldn't think any publicly traded company, nor any subsidiary of a non-startup, qualifies as a startup, even if they previously did before they exited. The tough categorization calls in my opinion are for slow-growing or stagnant long-private tech companies. With your definition, doesn't Amazon still qualify? It's majorly disrupting markets and rapidly evolving its business model. And it's definitely a tech company.