&gt; So at what point does a company stop being a &quot;startup&quot; nowadays?<p>Wikipedia defines startup as <i>a new business in the form of a company, a partnership or temporary organization designed to search for a repeatable and scalable business model</i>.[1]<p>Not sure where an exact &quot;point&quot; is (if one even exists) but would seem that Twitter (a nearly ten year old company with revenues of $1.4B) no longer fits that definition.<p>[1] <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Startup_company" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Startup_company</a>