DigiCert Additional CA

Add certificate authority capacity where your PKI architecture needs it most. DigiCert Additional CA is designed for organizations that already operate a certificate program and need more room to scale issuance, separate trust domains, or support distinct policy requirements across business units, applications, or environments. In mature security programs, one CA is often not enough. Additional CA capacity can help isolate certificate lifecycles, reduce operational friction, and support cleaner governance when different teams or workloads require different issuance rules. That matters in environments with multiple application owners, segmented infrastructure, or compliance-driven certificate policies. This is a practical purchase for teams that value control over convenience. Instead of forcing every certificate into a single hierarchy, an additional CA gives security and infrastructure teams more structure to manage trust, issuance, and operational boundaries. For enterprises running at scale, that structure is often what keeps PKI manageable over time.