Meet the luminaries who helped influence how and where you work. This list of the 100 most influential people in North American staffing — nominated by you and the Staffing Industry Analysts team — includes those who helped shape an approximately $147.5 billion North American staffing market.

It’s a brave new world. And many of these folks have toiled for years experimenting with staffing models, coming up with ideas that sparked dialogue and changed the world of work. And it’s not easy to measure influence in this new frontier. Financial success is one measure, but not the only one.