Why are you looking for them? I guess you have an exchange and want them to conduct an IEO on your exchange so you can attract people to join your platform and get some volumes. Am I right? Unfortunately, that's not good for investors. First, they risk their funds on the project. Second, also they risk their fund on your platform. So, it will be double risk for them.
Forget volumes, they just want their cut. This is precisely why I think IEOs are not much better than ICOs. Projects will PAY to get approved by exchanges. And exchanges are getting fees paid upfront plus a percentage of the sales so why would they want to deny projects completely? They would even help projects dress up their offering to make it LOOK better but underneath it will still be the same poor project, but you know, as long as it attracts investors.
Business as usual even if we do talk between ICO and IEO the result would be still the same which these things are mostly shitty projects and theres no such progress or development when we do talk about tech.
Exchangers would really have the cut on the pie yet this is just a traditional business and this is where binance and other exchangers do join up and utilizing their popularity yet they do know that
they are famous they do took advantage of it.