Someone could correct me, but I think you have already done all you could do. More exchanges could help, of course, but these 3 your coin is listed on should be enough. I believe it's just a matter of time before they list your coin. At least that's what I remember from other altcoins trying to be listed. It was a waiting game.
Here's the reply from CoinMarketCap:
Luke (CoinMarketCap)
Jul 11, 1:55 PM EDT
Hi,
Unfortunately INO does not meet our requirements for listing at this time. Please feel free to re-apply when this project has become more established.
Sincerely,
CoinMarketCap Support
What are their real requirements? What do they mean by becoming more established actually?