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Top NAC companies 2026

We rank NAC companies using a variety of factors, including agentless discovery capabilities, integration with IAM and EDR solutions, automated posture assessment, support for dynamic segmentation, and AI-driven threat detection, to get you the perfect results for your company's needs.

8 companies ranked | Jul 7, 2026

Which NAC vendors should buyers compare first?

Enterprise buyers should compare Fortinet, Appgate, and Unisys and other ranked NAC vendors by fit, capability evidence, implementation risk, and procurement readiness. Palomarr ranks suppliers to help buyers move from a broad market scan to a practical shortlist.

To shortlist NAC providers, consider your organization's size, specific security needs, and desired level of integration. Evaluate vendors based on their ability to provide comprehensive network visibility, align with Zero Trust principles, offer AI-driven threat detection, and ensure ease of implementation and scalability.

  • Fortinet stands out for its comprehensive, integrated security platform, combining NAC with next-generation firewall capabilities and AI-driven threat protection. Before shortlisting, verify its integration capabilities with your existing systems and ensure it meets your specific security compliance requirements.

  • Appgate and Unisys are ideal for large enterprises requiring robust Zero Trust Network Access. Appgate offers a direct-routed ZTNA architecture, while Unisys provides integrated cybersecurity solutions with a strong Zero Trust focus. For Appgate, verify specific integration needs and compliance with industry regulations; for Unisys, confirm integration with existing systems and the effectiveness of its security measures.

  • ThreatER is a compelling choice for SMBs and mid-market organizations looking to enhance their NAC posture through automated threat protection and incident response. Before shortlisting, verify its integration capabilities with your existing security tools and assess the effectiveness of its threat intelligence features.

  • TruU is well-suited for organizations seeking to enhance NAC with continuous, passwordless authentication, leveraging an AI-powered risk engine for secure and seamless access. Before shortlisting, verify its compliance with your security standards and its integration capabilities with existing identity management systems.

How companies earn their ranking

Capability scores for NAC vendors are driven by their ability to provide comprehensive visibility into network devices, enforce granular access control policies, and automate threat response. High capability scores also reflect robust support for diverse network environments, including wired, wireless, and VPN connections.

Vendors that offer seamless integration with existing security infrastructure and identity management systems typically score higher in capability. Innovation scores are primarily based on the vendor's adoption of AI and machine learning for threat detection, behavioral analysis, and automated remediation.

Cloud-native architectures and support for zero trust principles also contribute to higher innovation scores.Top-ranked NAC companies share a commitment to continuous improvement and innovation. They invest in research and development to stay ahead of emerging threats and adapt to evolving network environments. These vendors prioritize ease of use and streamlined implementation, offering intuitive interfaces and automated workflows.

To improve their ranking, vendors should focus on enhancing their AI-driven threat detection capabilities, expanding their integration ecosystem, and simplifying the deployment and management of their solutions.

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Want the full picture? Palomarr Insights explores the NAC space in depth and visualizes the companies based on metrics.
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Rankings

1
Fortinet

Automated posture checks for network access

Best Overall Best Value
9.8 This score was generated by combining our proprietary Capabilities and Innovation scores Capabilities 9.9 Innovation 9.7
2
Appgate

Low-latency access with real-time risk insights

Best for Enterprise
9.7 This score was generated by combining our proprietary Capabilities and Innovation scores Capabilities 9.6 Innovation 9.8
3
Unisys

Continuous threat detection for operational resilience

9.6 This score was generated by combining our proprietary Capabilities and Innovation scores Capabilities 9.7 Innovation 9.5
4
TrustWave

Granular control with 24/7 monitoring

9.5 This score was generated by combining our proprietary Capabilities and Innovation scores Capabilities 9.4 Innovation 9.6
5
ThreatER

Proactive threat detection with actionable insights

Best for SMB Best for Mid-market
9.4 This score was generated by combining our proprietary Capabilities and Innovation scores Capabilities 9.5 Innovation 9.3
6
TruU

Passwordless authentication minimizes unauthorized access

9.3 This score was generated by combining our proprietary Capabilities and Innovation scores Capabilities 9.2 Innovation 9.4
7
Securus Communications

Managed controls for UK security teams

9.2 This score was generated by combining our proprietary Capabilities and Innovation scores Capabilities 9.3 Innovation 9.1
8
Spot On Networks

Managed WiFi solutions for modern connectivity

9.1 This score was generated by combining our proprietary Capabilities and Innovation scores Capabilities 9.0 Innovation 9.2

Navigating the NAC Vendor Landscape: From Perimeter Defense to Zero Trust Orchestration

The modern enterprise network has evolved into a complex, distributed ecosystem, making robust Network Access Control (NAC) solutions essential for security. NAC has transitioned from a basic gatekeeping utility to a foundational element of the Zero Trust security model, addressing the challenges of managed endpoints, unmanaged IoT devices, and hybrid cloud infrastructures. Initially, NAC emerged to combat the 'rogue device' problem, where unauthorized devices could bypass perimeter firewalls. Today, advanced NAC platforms offer total visibility into every connected asset, integrating seamlessly with diverse network infrastructures and providing dynamic segmentation based on user roles and real-time risk profiles. The future of NAC is closely tied to AI and automation, leveraging machine learning for predictive defense and automated threat isolation. This evolution underscores the critical need for procurement teams to carefully evaluate NAC vendors, as a poor choice can lead to significant operational failures and financial risks.

What matters in this category

Comprehensive Network Visibility and Device Control

In today's complex network environments, organizations need complete visibility into every connected device, including managed, unmanaged, and IoT devices. Granular control over these devices is crucial to prevent unauthorized access and mitigate risks.

Evaluate vendors based on their ability to discover and classify all devices on the network, enforce context-aware access policies, and support diverse network environments (wired, wireless, VPN). Look for solutions that offer agentless discovery and integrate with existing IT infrastructure.

Zero Trust Alignment and Dynamic Segmentation

The Zero Trust security model assumes no implicit trust, requiring continuous verification of users and devices. NAC solutions that support dynamic segmentation can automatically place users into isolated network zones based on their role and real-time risk profile, significantly enhancing security.

Assess how well each NAC solution integrates with Zero Trust principles, offering continuous authentication and authorization. Compare their capabilities for dynamic policy enforcement and micro-segmentation, ensuring they can adapt to evolving threat landscapes and user behaviors.

AI-Driven Threat Detection and Automated Response

With the escalating volume and sophistication of cyber threats, manual threat detection and response are no longer sufficient. AI and machine learning capabilities enable predictive defense, identifying anomalous behavior and isolating threats at machine speed, minimizing business disruption.

Examine vendors' use of AI and machine learning for behavioral analysis, threat intelligence, and automated remediation. Look for solutions that offer AI-powered device fingerprinting and can integrate with broader security ecosystems like SASE and XDR for unified threat management.

Ease of Implementation and Integration

A complex or difficult NAC implementation can lead to operational friction, legitimate denial of service, and the emergence of 'Shadow IT.' Seamless integration with existing security infrastructure and identity management systems is vital for a successful deployment and ongoing management.

Consider the vendor's implementation difficulty, support resources, and integration capabilities with your current network hardware, security tools, and identity providers. Prioritize solutions with intuitive interfaces, automated workflows, and a track record of successful deployments in environments similar to yours.

Scalability and Performance

As networks grow and evolve, the NAC solution must be able to scale without compromising performance or security. It needs to handle a large volume of devices and users while maintaining high availability and responsiveness.

Evaluate vendors on their ability to support your current and future network size and complexity. Look for solutions with cloud-native architectures that offer unified policy enforcement across global sites and can manage a diverse range of device models efficiently.

Meet the leaders

Discover what makes each company unique. Use filters to narrow by your needs, or Find your perfect match to get personalized rankings tailored to your exact requirements.

I

97% match

Website

A contact center with collaboration features goes beyond just basic communication channels. It equips agents with tools to work together seamlessly.

This can involve features like real-time chat with colleagues, easy access to shared knowledge bases, and even the ability to consult with supervisors during a call. By fostering teamwork, these contact centers aim to improve agent efficiency, resolve customer issues faster, and ultimately provide a better overall customer experience.

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Key differentiators

Capabilities

8.6

Innovation

9.1

Easy support

Easy ease of implementation

Low cost $

Why it’s ranked

Fortinet excels in NAC with its FortiGate NGFW, offering integrated security and networking capabilities, ensuring compliance through automated device posture assessments.

Pricing posture

Premium pricing level with a mid-range cost tier.

Implementation/integration fit

Moderate implementation difficulty suitable for large enterprises with diverse customer needs.

What to verify

Verify integration capabilities with existing systems and security compliance requirements.

I

97% match

Website

A contact center with collaboration features goes beyond just basic communication channels. It equips agents with tools to work together seamlessly.

This can involve features like real-time chat with colleagues, easy access to shared knowledge bases, and even the ability to consult with supervisors during a call. By fostering teamwork, these contact centers aim to improve agent efficiency, resolve customer issues faster, and ultimately provide a better overall customer experience.

Learn more

Key differentiators

Capabilities

8.6

Innovation

9.1

Easy support

Easy ease of implementation

Low cost $

Why it’s ranked

Appgate's direct-routed ZTNA architecture enhances NAC by providing seamless, high-performance access control tailored for enterprises and government agencies.

Pricing posture

Moderate pricing level with a mid-range cost tier.

Implementation/integration fit

Easy implementation fit for mid-market and enterprise customers seeking efficient security solutions.

What to verify

Verify specific integration needs and compliance with industry regulations.

I

97% match

Website

A contact center with collaboration features goes beyond just basic communication channels. It equips agents with tools to work together seamlessly.

This can involve features like real-time chat with colleagues, easy access to shared knowledge bases, and even the ability to consult with supervisors during a call. By fostering teamwork, these contact centers aim to improve agent efficiency, resolve customer issues faster, and ultimately provide a better overall customer experience.

Learn more

Key differentiators

Capabilities

8.6

Innovation

9.1

Easy support

Easy ease of implementation

Low cost $

Why it’s ranked

Unisys provides integrated cybersecurity solutions with a focus on Zero Trust principles, making it a strong fit for enterprises needing comprehensive NAC capabilities.

Pricing posture

Moderate pricing level with a mid-range cost tier.

Implementation/integration fit

Easy implementation fit for large enterprises seeking robust cybersecurity solutions.

What to verify

Verify integration with existing systems and the effectiveness of security measures.

I

97% match

Website

A contact center with collaboration features goes beyond just basic communication channels. It equips agents with tools to work together seamlessly.

This can involve features like real-time chat with colleagues, easy access to shared knowledge bases, and even the ability to consult with supervisors during a call. By fostering teamwork, these contact centers aim to improve agent efficiency, resolve customer issues faster, and ultimately provide a better overall customer experience.

Learn more

Key differentiators

Capabilities

8.6

Innovation

9.1

Easy support

Easy ease of implementation

Low cost $

Why it’s ranked

Trustwave's NAC solution offers granular control and continuous monitoring, making it ideal for mid-market and enterprise clients focused on compliance and threat prevention.

Pricing posture

Moderate pricing level with a mid-range cost tier.

Implementation/integration fit

Moderate implementation difficulty suitable for large enterprises with diverse security needs.

What to verify

Verify the scope of managed services and compliance with security standards.

I

97% match

Website

A contact center with collaboration features goes beyond just basic communication channels. It equips agents with tools to work together seamlessly.

This can involve features like real-time chat with colleagues, easy access to shared knowledge bases, and even the ability to consult with supervisors during a call. By fostering teamwork, these contact centers aim to improve agent efficiency, resolve customer issues faster, and ultimately provide a better overall customer experience.

Learn more

Key differentiators

Capabilities

8.6

Innovation

9.1

Easy support

Easy ease of implementation

Low cost $

Why it’s ranked

threatER's focus on reducing known threats through intelligent action makes it a compelling choice for SMBs and enterprises looking to enhance their NAC posture.

Pricing posture

Moderate pricing level with a mid-range cost tier.

Implementation/integration fit

Moderate implementation difficulty suitable for SMBs and enterprises needing scalable security solutions.

What to verify

Verify integration capabilities and the effectiveness of threat intelligence features.

I

97% match

Website

A contact center with collaboration features goes beyond just basic communication channels. It equips agents with tools to work together seamlessly.

This can involve features like real-time chat with colleagues, easy access to shared knowledge bases, and even the ability to consult with supervisors during a call. By fostering teamwork, these contact centers aim to improve agent efficiency, resolve customer issues faster, and ultimately provide a better overall customer experience.

Learn more

Key differentiators

Capabilities

8.6

Innovation

9.1

Easy support

Easy ease of implementation

Low cost $

Why it’s ranked

TruU's passwordless authentication enhances NAC by continuously assessing user behavior and device posture, making it suitable for mid-market and enterprise buyers.

Pricing posture

Moderate pricing level with a mid-range cost tier.

Implementation/integration fit

Moderate implementation difficulty for mid-market and enterprise customers seeking innovative identity management.

What to verify

Verify compliance with security standards and integration with existing identity systems.

I

97% match

Website

A contact center with collaboration features goes beyond just basic communication channels. It equips agents with tools to work together seamlessly.

This can involve features like real-time chat with colleagues, easy access to shared knowledge bases, and even the ability to consult with supervisors during a call. By fostering teamwork, these contact centers aim to improve agent efficiency, resolve customer issues faster, and ultimately provide a better overall customer experience.

Learn more

Key differentiators

Capabilities

8.6

Innovation

9.1

Easy support

Easy ease of implementation

Low cost $

Why it’s ranked

Securus Communications provides tailored cybersecurity solutions with continuous management, making it a strong fit for SMEs and large enterprises in the UK.

Pricing posture

Moderate pricing level with a mid-range cost tier.

Implementation/integration fit

Moderate implementation difficulty for small to large enterprises requiring comprehensive cybersecurity services.

What to verify

Verify the scope of managed services and specific compliance requirements.

I

97% match

Website

A contact center with collaboration features goes beyond just basic communication channels. It equips agents with tools to work together seamlessly.

This can involve features like real-time chat with colleagues, easy access to shared knowledge bases, and even the ability to consult with supervisors during a call. By fostering teamwork, these contact centers aim to improve agent efficiency, resolve customer issues faster, and ultimately provide a better overall customer experience.

Learn more

Key differentiators

Capabilities

8.6

Innovation

9.1

Easy support

Easy ease of implementation

Low cost $

Why it’s ranked

Spot On Networks delivers managed WiFi solutions that enhance connectivity and security, making it suitable for enterprises focused on seamless user experiences.

Pricing posture

Moderate pricing level with a mid-range cost tier.

Implementation/integration fit

Moderate implementation difficulty for mid-market and enterprise customers needing reliable connectivity.

What to verify

Verify integration with existing infrastructure and service level agreements.

How to shortlist

Organizations prioritizing comprehensive, integrated security with advanced threat protection

Verify Fortinet's integration capabilities with your existing security infrastructure and ensure its advanced features align with your specific compliance and threat prevention requirements.

Enterprises and government agencies requiring high-performance, Zero Trust Network Access (ZTNA)

Assess Appgate's specific integration needs with your current systems and confirm its compliance with any industry-specific regulations relevant to your organization.

Large enterprises seeking comprehensive cybersecurity with a strong emphasis on Zero Trust principles

Verify Unisys's integration capabilities with your existing infrastructure and evaluate the effectiveness of its security measures in your specific operational context.

Mid-market and enterprise clients focused on compliance and managed security services

Confirm the scope of Trustwave's managed security services and ensure they align with your organization's security standards and compliance requirements.

How Palomarr ranks NAC companies

Palomarr's ranking of NAC providers is based on a comprehensive evaluation of each company's capability and innovation scores, derived from extensive research and analysis of product features, market presence, and technological advancements. While this ranking offers valuable insights into the strengths of each vendor, it is essential to consider your organization's unique requirements, existing infrastructure, and budget when making a final decision. We encourage buyers to use this guidance as a starting point for their due diligence, verifying specific claims and capabilities directly with vendors to ensure the best fit for their specific needs. The scores reflect a snapshot in time and the market is continuously evolving.

Common buyer questions

What is Network Access Control (NAC)?

Network Access Control (NAC) is a cybersecurity solution that restricts the availability of network resources to endpoints that comply with a defined security policy. It provides visibility into all devices connecting to a network, enforces granular access policies, and can automate threat responses. Modern NAC solutions are a foundational element of the Zero Trust security model, ensuring that only authorized and compliant users and devices can access network resources.

Why is NAC important for modern enterprises?

NAC is crucial for modern enterprises due to the proliferation of unmanaged devices (IoT, BYOD), the shift to hybrid work environments, and the escalating volume of cyber threats. It helps organizations gain complete visibility into their network, prevent unauthorized access, enforce security policies, and comply with data privacy regulations, thereby reducing the risk and cost of data breaches.

How has NAC evolved over time?

NAC has evolved from rigid, hardware-centric enforcement to flexible, identity-aware orchestration. Initially, it focused on port-based authentication (802.1X) to address rogue device problems. Key milestones include posture assessment (scanning device health), agentless discovery (for IoT devices), and cloud-native NAC (SaaS-based delivery). Today, it emphasizes dynamic segmentation, Zero Trust principles, and integration with AI and automation for predictive defense.

What are the key considerations when choosing a NAC vendor?

When choosing a NAC vendor, key considerations include comprehensive network visibility and device control, alignment with Zero Trust principles and dynamic segmentation capabilities, AI-driven threat detection and automated response, ease of implementation and integration with existing systems, and scalability and performance to meet current and future needs. It's also important to consider the vendor's support, pricing, and typical customer base.

What are the consequences of a failed NAC implementation?

A failed NAC implementation can lead to significant operational disruptions, including 'legitimate denial of service' where authorized employees are blocked from essential resources. This can result in lost productivity, a loss of trust in the security team, the emergence of 'Shadow IT' as users seek workarounds, and in severe cases, the shutdown of critical business functions and substantial revenue loss.

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