San Francisco-based Limelight Health, provider of insurance underwriting and proposal platform for the employee benefits industry, has raised $33.5 million in a Series C round led by Principal Life. Also participating in the fund are AXA Venture Partners, MassMutual Ventures, Aflac Ventures, Transamerica Ventures, Wells Fargo Strategic Capital (a division of Wells Fargo Commercial Capital), LaunchPadDigital Health and Wanxiang America Healthcare Investments. The company, founded in 2014, will use the funds for product development, customer acquisition, global expansion and hiring efforts. Limelight Health previously raised a $7 million Series B round in 2017.