So Manhattan GMAT average score is a 680, but

[tomslawsky]

do the other companies publish their average scores?

[StaceyKoprince]

I'm not aware of any other company publishing average scores, no - that doesn't mean they don't. It's not like I go trolling around looking for the data. :)

But I spend a decent amount of time on various forums, and I've never run across an average score from another large company.