TAMPA, Fla. & NEW YORK--(BUSINESS WIRE)--Lightyear Capital LLC (“Lightyear”) today announced a strategic investment in Corestream (the “Company”), a leading voluntary benefits and employee savings technology platform, to support Corestream's continued growth and mission to build the most trusted voluntary benefits experience for employers, employees, brokers, carriers and partners. Founded in 2006, Corestream automates the full voluntary benefits lifecycle, from selection and enrollment through