Abstract
This article discusses one of the major challenges of US workplace policy: protecting roughly 35m workers who are vulnerable to a variety of major risks in the workplace. After laying out the dimensions of this problem, I show that the vulnerable workforce is concentrated in a subset of sectors with distinctive industry characteristics. Examining how employer organizations relate to one another in these sectors provides insight into some of the causes as well as possible solutions for redressing workforce vulnerability in the US as well as other countries facing similar problems.