List of the Top 9 On-Prem Public Key Infrastructure (PKI) Software in 2025

The Open Source step certificates initiative offers the necessary infrastructure, automation tools, and workflows to safely establish and manage a private certificate authority. With step-ca, developers, operators, and security teams can efficiently oversee certificates for their production environments, ensuring streamlined operations and enhanced security. This project simplifies the complexities involved in certificate management, making it accessible to a broader audience.

EJBCA is a robust PKI platform designed for enterprise use, capable of issuing and managing millions of digital certificates efficiently. Its popularity spans globally, as it serves large organizations across various industries, making it a trusted choice for secure digital certificate management.

Discover the advanced security capabilities of CloudRAID, a solution that has received multiple accolades for its resilient and user-friendly file sharing features, whether hosted on-premise or in our secure data centers. Our system utilizes zero-knowledge storage and strong email protection, ensuring that recipients can access files without the need for software installation, which facilitates smooth communication. The email encryption gateway based on CloudRAID offers high levels of resilience and user-friendliness, eliminating the need for maintenance or PKI, while fully supporting all email clients and devices. In just a matter of minutes, you can deploy this protective measure, thanks to integrated tools that help identify vulnerabilities and enhance vital infrastructures. Collaboratively developed with the German Federal Office for Information Security (BSI), our technology employs techniques such as fragmentation, encryption, and redundant distribution to drastically reduce your attack surface. With DocRAID® at the forefront of CloudRAID technology, your files are secured both during transit and at rest, bolstered by the distribution of encrypted data fragments across various jurisdictions for added protection. Furthermore, our pioneering strategy guarantees that your sensitive data remains uncompromised even amidst the rapidly changing digital landscape, allowing you to focus on your core operations with peace of mind.

Robust digital security is achievable through the most reliable on-premises identity and access management (IAM) solutions available today. The Identity Enterprise platform offers an integrated IAM system that caters to a diverse array of consumer, employee, and citizen scenarios. It excels in managing high-assurance applications that necessitate a zero-trust model for potentially millions of users. The platform is versatile, allowing for deployment both on-premises and through virtual appliances. The principle of "never trust, always verify" ensures that both your organization and its user communities remain secure, regardless of their location. High-assurance applications include features like credential-based access, issuance of smart cards, and top-tier multi-factor authentication (MFA), safeguarding your workforce, consumers, and citizens alike. Additionally, user experience can be enhanced through adaptive risk-based authentication and passwordless login options. Digital certificates (PKI) can be employed to elevate security, offering robust protection whether utilizing a physical smart card or a virtual counterpart, thereby reinforcing the integrity of your identity management strategy. This comprehensive approach ensures that security remains a priority while minimizing potential obstacles for users.

Effectively oversee the complete lifecycle of certificates within your network, applicable to both on-premise and cloud-centric Public Key Infrastructure (PKI) environments. Transition effortlessly from your existing certificate authority by adopting policy-driven automated mechanisms for the issuance, renewal, and revocation of certificates, which eliminates the potential for human error often associated with manual tasks. As organizations increasingly rely on PKI to protect machines, devices, and user access through keys and digital certificates, HID IdenTrust, in partnership with Keyfactor, delivers an efficient solution for PKI and extensive automation in certificate lifecycle management. HID IdenTrust provides a cloud-managed PKI service capable of issuing public, private, and U.S. Government interoperable (FBCA) digital certificates, significantly enhancing the security of websites, network infrastructures, IoT devices, and employee identities. Additionally, you can identify all certificates present within both network and cloud environments through real-time inventories of public and private Certificate Authorities (CAs), as well as utilizing distributed SSL/TLS discovery tools and direct connections to key and certificate repositories, ensuring thorough visibility and oversight. This comprehensive strategy not only fortifies security but also enhances operational effectiveness throughout the organization, ultimately leading to a more resilient digital ecosystem.

SeaCat is an all-encompassing platform for cyber-security and data privacy tailored for mobile and IoT applications, empowering users to create and manage their apps free from cyber threats. Crafted by a specialized team, SeaCat encompasses a range of vital features that guarantee strong cyber-security and data privacy, ensuring a smooth deployment experience. Users can quickly elevate their security measures with SeaCat, all without the necessity for extensive custom development. This platform is designed with user experience in mind, avoiding intricate setups or procedures that could hinder progress. Incorporating cutting-edge security protocols, such as biometric authentication and hardware security modules, SeaCat stands out as a contemporary choice for developers. The platform is made up of three essential elements: the SeaCat SDK for integration into mobile or IoT applications, the SeaCat Gateway situated in the demilitarized zone (DMZ) ahead of backend servers, and the SeaCat PKI service that streamlines enrollment, access, and identity management. With SeaCat at their disposal, users can confidently safeguard their applications while concentrating on providing an exceptional user experience, knowing that their security needs are comprehensively addressed. Additionally, the platform's user-friendly design ensures that even those with limited technical knowledge can benefit from its robust protection features.

Organizations today have access to a diverse array of exceptional enterprise security tools. These tools can be deployed either on-premises or as cloud-based services, with some solutions offering a blend of both methods. The main challenge that companies face is not the lack of available tools or solutions, but the struggle to achieve smooth integration of privileged access management systems within a cohesive platform for monitoring and auditing. GaraSign offers a robust solution that allows organizations to securely and efficiently connect their security systems without disrupting their existing workflows. By pinpointing and highlighting shared characteristics, GaraSign helps streamline and consolidate the supervision of essential enterprise functions, including privileged access management (PAM), privileged identity management, secure software development, code signing, data protection, PKI & HSM solutions, DevSecOps, and more. As a result, it becomes crucial for security leaders in organizations to prioritize data security management, PAM, and privileged identity management in their strategic planning. Furthermore, the capacity to integrate these diverse tools not only enhances operational efficiency but also strengthens risk management practices across the organization. This integration ultimately fosters a more resilient security posture, enabling businesses to navigate the complexities of today's threat landscape with greater confidence.

Developing a thorough authentication approach that diligently verifies users, devices, and interactions via a dynamic cloud-based platform is essential for modern organizations. Axiad facilitates the shift towards a passwordless setup, significantly reducing the risks and complications linked to fragmented solutions while simultaneously reinforcing cybersecurity measures and enhancing user empowerment. By instituting strong security measures, dismantling information barriers, and maintaining compliance with regulatory standards, companies can leverage enterprise-grade passwordless multi-factor authentication (MFA). In addition, businesses can integrate government-level, phishing-resistant authentication methods to fortify their security structures. Transitioning from traditional identity and access management systems to implementing optimal practices for user protection and compliance through cutting-edge passwordless and phishing-resistant MFA strategies is crucial. Moreover, it is vital to enhance machine identity verification along with overall security by employing a cohesive and versatile Public Key Infrastructure (PKI) framework, which ensures that organizations are prepared to tackle the continuously evolving landscape of cyber threats. Ultimately, embracing these innovative solutions not only secures sensitive information but also fosters a culture of safety and trust within the organization.

Accops HyID offers a cutting-edge solution for managing identity and access, aiming to safeguard crucial business applications and sensitive information from unauthorized access by both internal personnel and external threats through efficient user identity governance and access management. This innovative platform provides businesses with extensive control over their endpoints, facilitating contextual access, device entry management, and a flexible policy framework tailored to specific needs. Furthermore, its integrated multi-factor authentication (MFA) functions smoothly across modern and legacy applications alike, covering both cloud-hosted and on-premises systems. This functionality ensures strong user authentication through the use of one-time passwords transmitted via SMS, email, or app notifications, in addition to biometrics and device hardware identifiers combined with public key infrastructure (PKI). The inclusion of single sign-on (SSO) features not only enhances security but also improves user convenience significantly. Organizations are empowered to continuously monitor the security status of their endpoints, including personal devices, allowing them to make immediate access decisions based on real-time risk assessments, thereby reinforcing a more secure operational landscape. As a result, Accops HyID not only strengthens security measures but also optimizes user experiences, making it a valuable asset for any organization seeking improved identity and access management. In this way, businesses can focus on their core activities while trusting that their data security is robust and effective.