Selecting a post-quantum cryptography partner: what enterprises should demand
Choosing the right provider of quantum security services is critical for a successful post-quantum cryptography migration. Discover the key capabilities every enterprise should look for.
The transition to post-quantum cryptography (PQC) is no longer a theoretical exercise. Following the publication of NIST’s first post-quantum cryptography standards in 2024, organizations across the finance, telecommunications, manufacturing, defense, healthcare and critical infrastructure sectors are beginning the long process of replacing cryptographic systems that could eventually be broken by large-scale quantum computers. NIST notes that integrating new cryptographic algorithms into products and services can take 10 to 20 years, making early planning essential.
For most enterprises, however, the challenge is not choosing a new algorithm. It is choosing the right partner to guide what is likely to be one of the largest cryptographic migrations their organization has ever undertaken.
Unlike previous security upgrades, post-quantum migration affects certificates, key management, software libraries, embedded devices, hardware security modules, communications protocols, and cloud services. It requires expertise that extends well beyond implementing new cryptographic algorithms.
That is why evaluating quantum security services has become just as important as evaluating the technology itself. The right partner should not only provide standards-based post-quantum solutions, but also the technical expertise, implementation support, and long-term guidance required to help organizations navigate an evolving cryptographic landscape with confidence.
Why PQC migration is different from traditional security projects
Replacing vulnerable public-key cryptography (PKC) is fundamentally different from rolling out a new firewall or endpoint security platform.
Modern organizations rely on cryptography throughout their technology stack. Encryption protects data in transit and data at rest. Digital signatures establish software authenticity. Public key infrastructure (PKI) enables trusted communications. Identity systems, VPNs, firmware updates, and secure boot mechanisms all depend on cryptographic foundations.
Changing those foundations means understanding where cryptography exists today, before introducing new algorithms.
Recognizing this complexity, the US National Cybersecurity Center of Excellence (NCCoE) launched its Migration to Post-Quantum Cryptography project to help organizations discover cryptographic assets and develop practical migration strategies, rather than simply replacing algorithms.
This is why enterprises increasingly need partners that understand the entire cryptographic lifecycle, not just the mathematics behind PQC.
What enterprises should look for in quantum security services
Standards expertise
The first question to ask is whether a potential partner actively contributes to the standards that are currently shaping PQC.
The industry is moving from research into implementation. NIST has standardized the first generation of post-quantum algorithms, but implementation guidance and protocol integration continue to evolve. Organizations adopting PQC today need confidence that their chosen solutions will remain aligned with future developments.
Partners that contribute to standards development often gain earlier visibility into evolving requirements and implementation challenges, helping customers avoid costly redesigns later.
Practical deployment experience
Strong cryptography alone is not enough.
A partner should demonstrate experience deploying PQC across real production environments, including:
- Enterprise applications
- Cloud platforms
- Embedded devices
- Semiconductor products
- Communications infrastructure
- Industrial systems
Migration rarely happens within a single project. Most organizations will adopt hybrid approaches that combine classical and post-quantum algorithms while maintaining interoperability with existing systems.
The right partner should understand how to integrate new cryptography without disrupting business operations.
Cryptographic agility
One of the most important concepts in modern cybersecurity is cryptographic agility (crypto-agility).
Crypto-agility refers to an organization’s ability to replace or update cryptographic algorithms without redesigning entire systems.
NIST has repeatedly highlighted crypto-agility as a critical capability because the transition to PQC will be significantly larger than previous cryptographic migrations. Systems that tightly couple applications to specific algorithms become costly to upgrade.
Instead, organizations should look for quantum security services that support:
- Multiple cryptographic algorithms
- Hybrid deployments
- Flexible certificate management
- Future standards updates
- Long-term cryptographic governance
Crypto-agility reduces future migration costs and helps organizations remain resilient as standards continue to mature.
4. Performance without compromise
Security improvements should not come at the expense of performance.
Many post-quantum algorithms use larger keys and signatures than traditional public-key cryptography. Depending on the deployment environment, this can affect bandwidth, storage, latency, and processing requirements.
These considerations become particularly important in:
- Embedded systems
- Internet of Things (IoT) devices
- Automotive platforms
- Mobile applications
- High-performance networking
An experienced partner should understand how to optimize implementations across both software and hardware while maintaining strong security.
Questions every enterprise should ask a potential partner
Selecting a PQC partner should involve far more than reviewing product specifications or comparing algorithm support. Successful migration depends on a partner’s ability to assess your existing cryptographic landscape, integrate new solutions into complex environments, and provide ongoing guidance as standards continue to evolve. Asking the right questions early can help differentiate providers that simply offer post-quantum products from those that deliver comprehensive quantum security services.
Consider asking:
‘How do you identify where cryptography already exists?’
Many organizations have limited visibility of cryptographic assets across applications, certificates, firmware, and infrastructure. Discovery is often the first step towards successful migration.
‘How do you support hybrid deployments?’
Few organizations will migrate everything simultaneously. Hybrid cryptography allows classical and post-quantum algorithms to coexist while systems transition over time.
‘How do you maintain compatibility with evolving standards?’
PQC continues to evolve. organizations need confidence that deployed solutions can adapt without requiring major architectural changes.
‘Can your solutions scale across software, hardware and cloud environments?’
Enterprise infrastructure rarely exists in one place. Effective migration requires consistent cryptographic capabilities across diverse environments.
‘What happens after deployment?’
Migration is not the end of the journey. Ongoing updates, standards-evolution, and governance should all form part of a long-term partnership.
Red flags – what to avoid
As organizations accelerate their post-quantum planning, the market for quantum-safe solutions is expanding rapidly. While this gives enterprises more choice, it also makes it more important to distinguish between providers with proven cryptographic expertise and those making broad or unsupported claims.
Looking beyond marketing messages and evaluating technical capability, standards- involvement and implementation experience can help organizations select a partner that will support them throughout their migration journey.
Some common warning signs include:
“Quantum-proof” guarantees
No credible cybersecurity organization can promise permanent immunity from future advances in cryptography or quantum computing. The field continues to evolve, with new standards, implementation-guidance and best practices emerging as research progresses. Be cautious of providers that use terms such as “quantum-proof” without explaining how their solutions align with recognized standards or support future updates.
Trustworthy providers focus on standards-based, adaptable security that can evolve alongside changing requirements, rather than making absolute claims that cannot be substantiated.
Proprietary cryptography
Industry best practice favors publicly scrutinized, standards-based algorithms rather than proprietary alternatives. The algorithms selected by NIST have undergone years of international cryptographic review, giving organizations greater confidence in their security and long-term viability. Providers that rely on proprietary cryptography or offer limited transparency may introduce unnecessary risk and make future interoperability more difficult.
Choosing recognized standards helps improve compatibility across systems, supports future migrations, and reduces the likelihood of vendor lock-in.
Technology without migration planning
Replacing algorithms is only one part of a successful post-quantum migration. Organizations also need to understand where cryptography is used across their environments, assess which systems should be prioritzed and develop a phased implementation strategy that minimizes disruption. Effective migration typically includes:
- Asset discovery
- Risk assessment
- Integration planning
- Testing and validation
- Governance
- Long-term support
A capable partner should be able to demonstrate a structured migration methodology that supports organizations throughout the entire transition, rather than simply supplying software or hardware components.
Limited involvement in the wider ecosystem
PQC is advancing through close collaboration between governments, standards bodies, academia and industry. As standards continue to evolve, organizations benefit from working with partners that actively contribute to this wider ecosystem rather than simply implementing finished specifications.
Providers with experience participating in standards development, research initiatives and industry collaborations are often better positioned to anticipate changes, interpret emerging guidance, and help customers make informed decisions throughout their migration journey.
Why long-term partnership matters in PQC
Perhaps the biggest misconception about PQC is that it represents a single migration project.
It marks the beginning of ongoing cryptographic modernization.
As new standards emerge, algorithms evolve and systems become increasingly connected, organizations will need to continue adapting their cryptographic infrastructure.
NCCoE’s migration program reflects this long-term view by focusing not only on implementing new algorithms, but also on improving crypto-discovery, governance, and migration planning across complex enterprise environments.
Choosing a partner therefore means selecting an organization capable of supporting today’s migration while preparing for tomorrow’s security requirements.
Selecting the right partner for the quantum era
PQC is becoming a strategic business initiative rather than a niche security project. Success depends on more than deploying new algorithms. It requires careful planning, deep technical expertise, and the flexibility to adapt as standards and threats continue to evolve.
The most effective quantum security services combine standards expertise, practical implementation experience, cryptographic agility and long-term support. Organizations that evaluate providers against these criteria will be better positioned to modernize their cryptography with confidence, reducing risk while building a resilient foundation for the future.
Why partner with PQShield?
Choosing a PQC partner is about finding a team with the expertise to help you navigate a complex and evolving cryptographic landscape, from initial planning through to deployment and long-term cryptographic agility.
As a global leader in PQC, PQShield combines world-class research with practical implementation experience. Founded as a spin-out from the University of Oxford, the company has played an active role in the development of international PQC standards, helping shape the technologies that organizations are now preparing to deploy.
PQShield’s quantum security services are designed to support organizations at every stage of their migration journey. From assessing cryptographic risk and developing migration strategies to integrating standards-based PQC into software, hardware and cloud environments, PQShield helps enterprises modernize their cryptography with confidence.
Whether you’re beginning to explore post-quantum readiness or planning a large-scale migration, partnering with experienced cryptographers and engineers can help reduce complexity, minimize disruption, and build a resilient foundation for the future.
Ready to start your post-quantum journey? Contact PQShield to discuss how our quantum security services can support your organization’s transition to quantum-safe security.
Frequently asked questions
What are quantum security services?
Quantum security services help organizations prepare for and implement PQC. Depending on the provider, these services may include cryptographic discovery and assessment, migration planning, implementation support, cryptographic agility consulting, and the integration of standards-based PQC into software, hardware and cloud environments. The goal is to help organizations transition to quantum-safe security while minimising disruption to existing systems.
Why is choosing the right PQC partner important?
Migrating to PQC is a long-term program rather than a single technology upgrade. It requires expertise across cryptographic standards, system integration, software development, and long-term governance. The right partner should be able to support every stage of the journey, from identifying vulnerable cryptographic assets to deploying new algorithms and adapting as standards continue to evolve.
How can I tell if a quantum security provider is credible?
Look for providers with demonstrable expertise in cryptography, active participation in industry standards, and experience implementing PQC in real-world environments. A credible partner should be transparent about the standards they support, explain how they approach migration planning and provide evidence of successful deployments across relevant industries.
Which industries should be preparing for post-quantum cryptography?
Any organization that relies on PKC should begin planning the transition. However, sectors managing long-lived data, safety-critical systems or large-scale digital infrastructure, such as financial services, telecommunications, government, defense, healthcare, automotive and semiconductor manufacturing, may face greater urgency due to the complexity and duration of their migration programs.