I know that none are cat 2 because ISX never made an announcement about it. Cat 2 customers are absolutely huge. Riot is huge. Valve is huge. Epic is huge. Even JB Hifi is huge. Any single one of cat 2 businesses as customers, and you'll have a market sensitive announcement, given GPTV of a single customer will be in excess of the entire volume that ISX currently does, hence easily breaching the 10% "significant" mark.
By way of elimination, we know that 100% of ISX "online gaming" customers belong to category 3.
Did you actually think before you posted the list of companies? Of course you did... because you were intent on misrepresenting. So I repeat my question: Why do you feel the need to misrepresent?
ISX Price at posting:
$1.07 Sentiment: Sell Disclosure: Held