Geoff Wood, the innovation guru behind the Gravitate co-working site, has been compiling a completely subjective, just-for-fun set of power rankings. It’s a chance to highlight operations he thinks have legs, although he’s not saying one wins over another or that other companies aren’t worthy of attention. In July, Igor, a Johnston-based power-over-Ethernet company, topped the list after raising another $2 million, bringing its total to $6 million. Also on the July list: Iowa City-based Pear Deck, and Workhound, UpCraft Club and Full Time Founders’ Meetup, all of Des Moines. Read more details about how Wood sizes up the companies.