Keyfactor Lands More Than $1 Billion to Expand AI and Post-Quantum Security Push

Keyfactor has raised a strategic growth investment of more than $1 billion, a deal the company says will support expansion of its identity and cryptographic security platform as organizations prepare for AI-related and post-quantum risks.

The company focuses on securing machine identities, public key infrastructure (PKI), and broader cryptographic assets. Its platform, called the Trust Control Plane, is designed to give enterprises a centralized way to inventory, manage, and automate the lifecycle of certificates and other machine identities across cloud, hybrid, and on-premises environments.

According to Keyfactor, the new capital will be used to speed up product development, grow global operations, expand into additional markets, increase staffing, and potentially support acquisitions. The financing was led by Summit Partners. Existing investors Insight Partners and Sixth Street Growth will continue to hold meaningful ownership positions after the transaction.

The investment comes at a time when many security teams are dealing with rapidly expanding machine identity inventories. In some environments, those identities now far outnumber human users, increasing the complexity of certificate management and cryptographic governance. Keyfactor says it currently manages billions of machine identities each year for more than 2,500 customers worldwide.

Why the timing matters

Interest in post-quantum readiness has increased after a June 2026 White House executive order called for a faster federal shift to quantum-safe cryptography, with a 2030 target in place. At the same time, enterprises are also trying to govern AI systems and autonomous agents that may require secure identities of their own.

• More than $1 billion in strategic growth funding
• Led by Summit Partners, with support from existing backers
• Focused on machine identity, PKI, and cryptographic security
• Intended to address AI governance and post-quantum transition needs

Summit Partners Managing Director Andy Collins said the combination of post-quantum planning, agentic AI oversight, shorter certificate lifecycles, and shifting compliance expectations is driving demand for a unified enterprise platform. Keyfactor said the investment will help it meet that demand as customers look to modernize cryptographic security programs.