AWS Private Certificate Authority Expands Capacity to Support Up to 100 Million Certificates per CA
SEATTLE – July 18, 2025 – Amazon Web Services (AWS) today announced a significant enhancement to AWS Private Certificate Authority (AWS Private CA), a fully managed service that makes it easy for organizations to create and manage their own private certificate authorities (CAs). The service now supports issuing up to 100 million certificates per private CA, a tenfold increase from its previous limit. This expansion is designed to meet the growing demands of large enterprises and organizations managing vast fleets of devices and applications.
The ability to issue a substantially larger number of certificates unlocks new possibilities for customers by providing a robust and scalable solution for their public key infrastructure (PKI) needs. This enhancement is particularly beneficial for organizations operating at scale, such as those in the Internet of Things (IoT), telecommunications, financial services, and large-scale enterprise environments.
Prior to this update, customers requiring the issuance of tens of millions of certificates would need to manage multiple private CAs or explore more complex, custom-built PKI solutions. The increased capacity of AWS Private CA streamlines operations, reduces management overhead, and simplifies certificate lifecycle management for these customers.
“We are continuously listening to our customers and evolving AWS Private CA to meet their expanding needs,” said [Insert hypothetical AWS spokesperson name and title, e.g., Jane Doe, Senior Product Manager for AWS Security]. “The ability to issue up to 100 million certificates per CA empowers organizations to confidently secure an unprecedented scale of devices and applications with a managed, secure, and cost-effective solution. This development further solidifies AWS Private CA as a leading choice for enterprise-grade PKI.”
Key benefits of this expanded capacity include:
- Unparalleled Scalability: Organizations can now manage the lifecycle of certificates for millions of endpoints, from IoT devices to enterprise servers, under a single, manageable private CA.
- Simplified Management: Reducing the number of CAs required simplifies management, auditing, and policy enforcement across an organization’s PKI landscape.
- Cost Efficiency: Eliminating the need for multiple CAs can lead to significant cost savings in terms of management, infrastructure, and operational overhead.
- Enhanced Security: AWS Private CA provides robust security features, ensuring that even at this expanded scale, customer certificates are managed with industry-leading security practices.
- Accelerated Innovation: By abstracting the complexities of PKI management, this enhancement allows organizations to focus more on their core business and accelerate the deployment of secure, connected solutions.
This update reinforces AWS’s commitment to providing scalable and secure cloud services that empower businesses to innovate and grow. With AWS Private CA, organizations can leverage the cloud to build and manage their own trusted certificate authorities, enhancing the security posture of their internal networks and applications with ease and confidence.
For more information about AWS Private CA and this new capacity expansion, please visit [Link to the official AWS Private CA page].
AWS Private CA now supports issuing up to 100 million certificates per CA
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