Welcome to the Q&A Forum

Bump - Also seeking the same.

Not affiliated with these guys in any way, and haven't worked with them either, but I did once have a conversation with Nick from Killer Infographics (http://www.submitinfographics.com/KillerPortfolio.pdf). I haven't had a need for an infographic yet but they seemed like an interesting option. Please don't take this as an endorsement as I haven't tried them. I know they do concept to completion but I don't think they promote them, but isn't the idea of an infographic that they're fairly easy to promote anyway? Viral content and all that