Cresta, which offers a service that uses AI to mentor customer service agents in real time, raises $50M Series B led by Sequoia Capital Paul Sawers / VentureBeat : VentureBeat 2021-04-05 Paul Sawers Cresta, Sequoia Capital, Paul Sawers / VentureBeat Related Coverage Sequoia, Greylock, and a16z Back Cresta's Expertise AI as Growth Quadruples PR Newswire Cresta Closes $50M Series B Funding FinSMEs