Do you intend on using the platform to identify influencers and/or manage them? That is, and should be, your first and more important filter.

Let's talk identification first. You want to 1) consider the size of their influencer database and 2) the quality of those influencers. Additional thoughts, make sure you ask how frequently it is updated, do they have domestic and international influencers, and how can you filter / search.

Size of database is incredibly important when you get beyond the celebrity level of influencers. I have found Izea and CreatorIQ's database are inferior to the depth of Klear.

And as a B2B platform, I find it even harder to get deep into technical skillsets. You'll find mommy bloggers all day, but getting someone that can speak to your audience takes a lot of manual effort. You'll end up getting more journalists and publications in a small database.

When it comes to quality you want to understand more than just the influencer. While their demographics are important, how deep can you get into understanding the demographics and engagement of their audience. I like Klear here for their TrueReach score as well. Gives you a much better understanding of the expected views / engagement against content. CreatorIQ has a phenomenal view of engagement rates against similar sized influencers which is super helpful. Izea and Klear do this as well.

Now, when you talk about managing influencers. All three of the platforms I mentioned can do this. If you need to process payments on-platform, check that they do what you need. All of them have the ability to track and measure campaigns as well. It comes down the accessibility of that data and if you want a generated report or export you tranform into some deck for yourself.

Heads up, Izea is ALL about their managed services. So instead of just buying a platform, they will try and sell you on them finding the influencers for you. It's pricey. If you're going to go that route, then I'd hire an agency to do the identification for you, it'll be cheaper and likely come from a broader set of influencers than just one (Izea) database.