The oversubscribed series A round featured Zaffre Investments, the corporate venturing arm of insurance provider Blue Cross Blue Shield.

US-based mobile health startup Zest Health closed its series A round featuring Zaffre Investments, the corporate venturing subsidiary of insurance provider Blue Cross Blue Shield of Massachusetts, at more than $6m.

The oversubscribed round also incuded 7wire Ventures, which incubated Zest in 2013, as well as Lightbank, Martin Ventures, Dallas Venture Partners and LSAN Azimuth Ventures.

Zest’s mobile app, dubbed Smart Concierge, helps users navigate the large number of healthcare insurance offerings while taking into account benefits, costs and personal…