Some of these still exist, I don't get it? What dictates when a company is "dead"? Insolvency? Bankruptcy? For example - Domo is still publicly traded and does

Some of these still exist, I don't get it? What dictates when a company is "dead"? Insolvency? Bankruptcy? For example - Domo is still publicly traded and does $300M in revenue: https://www.cnbc.com/quotes/DOMO https://www.cnbc.com/quotes/DOMO