Symphony, founded in 2014 by David Gurle, raised $461M through Series D and E rounds from banks and strategic investors. The New York City–based platform provides encrypted messaging, secure file sharing, voice, and workflow automation for financial institutions. Funding enabled enterprise-grade security, compliance workflows, global bank partnerships, and feature expansion for collaboration. Symphony helps capital markets desks and asset managers communicate securely while meeting regulatory obligations. Key investors include Citadel, BlackRock, SC Ventures, and a bank consortium.