https://www.cnbc.com/2018/02/04/castlight-health-ceo-bezos-will-learn-health-care-is-a-tough-business.html

Castlight Health works with dozens of large employers, including Amazon, to help workers navigate their health benefits with its online tools.

So it would make sense that its CEO John Doyle would be a key resource for Amazon and its partners, Berkshire Hathaway and JPMorgan Chase, in their plan to curb workers' escalating health care costs, in part with new technology.