PKI Management and Hosting

Why PKI managed services matter

Operating public key infrastructure demands specialist expertise, continuous monitoring and strict adherence to security and regulatory standards. Many organisations lack the internal resources, skills or technology to maintain PKI effectively, leading to availability risk, compliance gaps and operational inefficiency.

Poorly managed environments create vulnerabilities. Certificate outages disrupt business operations, and inadequate governance exposes organisations to audit findings and compliance failures.

The operational burden is also growing. Certificate volumes rise with every new service, and public TLS lifetimes falling to 47 days will take renewal frequency up roughly eightfold. At the same time, post-quantum migration is adding a programme of work most internal teams have no capacity to absorb. Running PKI in-house is getting harder, not easier.

A managed service provides expert oversight, proactive monitoring and automated processes that reduce risk while freeing internal teams for strategic work. You retain control and visibility over your certificate estate; we handle the day-to-day operations and keep the infrastructure secure, compliant and current.

Robust PKI is what underpins digital trust across an organisation, and it is the part of the security estate most often left to run itself.

What we do

PKI is complex, resource-heavy and mission-critical. Unsung takes the burden off internal teams by delivering fully managed, secure public key infrastructure services built around your requirements.

We support multiple Certificate Authority platforms — including EJBCA, Microsoft AD CS and others — alongside certificate lifecycle management tooling, across on-premises, hybrid and cloud environments. We are vendor-agnostic, and the managed service model gives centralised oversight while you retain control of systems and procedures.

Our managed services are trusted by government and private sector clients, including mission-critical defence and national infrastructure projects. Our consultants hold SC and DV security clearance, and we also deliver across financial services, healthcare and transport.

How we help

Unsung provides a complete PKI managed service covering day-to-day operations, system monitoring, updates, incident response and governance. We operate and host PKI platforms, maintain certificate availability, support compliance and underpin your business continuity objectives.

With options for centralised, cloud-hosted management and automation of certificate lifecycle processes, you get the oversight and transparency you need without the operational overhead.

PKI operations and monitoring

We run your infrastructure, managing routine operations including issuance, revocation, renewal, system patching and performance monitoring. We implement industry best practice for key management, protect key material through hardware security modules, and maintain the supporting infrastructure that keeps the service resilient.

Our procedures cover end-to-end operations, from certificate lifecycle management through to incident response and stakeholder communication. Our issuing CA expiry and CA transition case studies show how we handle the situations that cause most organisations serious disruption.

Hosted PKI solutions

We provide secure hosting for PKI components across full cloud, hybrid or on-premises deployment. Hosted solutions deliver availability, scalability and resilience while maintaining security standards and regulatory compliance.

Where a new environment is required rather than an existing one taken on, our PKI design and build service covers architecture and implementation before transition into managed operations.

Certificate lifecycle management and automation

We automate issuance, renewal and expiry processes, reducing risk and removing routine work from your teams. Certificates are tracked, monitored and renewed ahead of expiry, with consistent policy enforcement across the estate.

The capabilities that matter are set out in our article on the four pillars of CLM, and our guide to overcoming resistance to automation covers the objections that typically surface during transition.

Hardware security modules and key management

We manage hardware security modules protecting cryptographic key material, covering secure key generation, storage and usage. Our expertise spans HSM integration, key ceremony procedures and secure key lifecycle management aligned to regulatory requirements.

We maintain the supporting infrastructure and implement controls supporting compliance with recognised standards including Cyber Essentials and ISO 27001.

Governance and compliance

We manage documentation, logs, audits and compliance reporting, aligned to regulatory standards and your internal policy. The governance framework provides the audit trail needed for compliance and the visibility needed to demonstrate control of your cryptographic estate.

You receive regular reporting on security posture and compliance status, so the position is known rather than assumed.

Crypto agility and post-quantum readiness

A managed service should prepare you for the next cryptographic change, not just maintain the current one. We build crypto agility into the operating model, maintain an inventory of algorithms and key lengths through a cryptographic bill of materials, and support planning for the NIST post-quantum transition.

Flexible control models and partnerships

Our managed services are built to flex. You retain oversight, decision rights and visibility; we handle operations. We work alongside your teams, share what we find, and provide training to build internal capability rather than dependency.

We adapt service delivery to your risk tolerance and operating model, support transition to new technology, and work towards longer-term resilience across your cryptographic infrastructure.

Getting started

Most engagements begin with a PKI health check. It establishes what is actually deployed, what is at risk and what needs attention first — before any decision about who operates it.

Talk to our team to discuss your requirements.