Digital Identity Verification Provider Socure Finalizes $450M Round at $4.5B Valuation  Crowdfund Insider. : Socure, the provider of digital identity verification and fraud solutions, has confirmed its oversubscribed $450M round at a $4.5B valuation from various growth equity and public market investors. Socure achieved a $4.5B valuation only seven months after its $1.3B Series D investment round, on the “back of 500% year-over-year bookings growth and nearly $1B of investment demand, earning Socure the highest valuation for any private company in the identity verification space,” according to an update shared with Crowdfund Insider.