Core Security SDI Corporation

Core Security SDI Corporation

Core Security SDI Corporation was founded in 1996 in Boston by Anthony E. Russo, a cybersecurity veteran with roots in the defense sector. The company started as a network security consultancy before pivoting to software, releasing its first commercial identity and access management (IAM) product in 2003. Wealth origin is undisclosed but the firm appears to be a privately held entity, likely backed by Russo's own capital. The firm invests primarily in development and direct sales of IAM and security analytics software. Core's product suite includes Core Access (privileged access management), Core Identity (governance), and Core Security Intelligence (SIEM). The company operates with approximately 200 employees across four US offices. Unlike pure-play venture-backed cybersecurity firms, Core does not take outside funding and remains founder-controlled (per public record, 2026). As of mid-2025, Core continues to win federal contracts — in May 2025, it secured a multi-year identity management framework for the US Department of Veterans Affairs, per the firm's announcements. The company also expanded its office in Alpharetta, GA, in 2024 to support growth in IAM services. AUM is undisclosed, but the firm's annual revenue is estimated in the tens of millions (per observed contract values and employee count). Core's structural differentiator is its long-term, bootstrapped model in an industry dominated by venture capital and M&A. Where Okta and ForgeRock have raised billions of dollars, Core has grown organically for 30 years, yielding stable recurring revenue. That independence lets the firm operate without pressure to chase hypergrowth or exit, but limits scale versus well-funded rivals.