How many people attending a conference can be hard to find. The staff at 7x24 Exchange make it easy to know as they share the current and past attendance numbers. (Note: SC is spring conference and FC is fall conference)
This sharing fits with 7x24 Exchange updating its mission to include sustainability and social responsibility which is built on being open and transparent.
As you look at what data center conferences to attend look for whether they disclose past conference attendance to gauge whether the conference is appealing to its user base.
7x24 Exchange has been discussing energy efficiency, renewable energy, and other sustainability ideas for years. And, now its part of their official mission statement.