Zero trust network access is no longer a buzzword. It's the answer to a real problem: VPNs hand users keys to the whole building when they only need one room. ZTNA fixes that by granting access to specific applications, not the network. The difference matters when a compromised credential or a misconfigured split-tunnel becomes a ransomware entry point.
The market has matured fast. You've got cloud-native platforms, WireGuard-based mesh tools, OT-specific solutions, and full SASE stacks all claiming the ZTNA label. They're not the same. A startup running five engineers on AWS has completely different needs than a manufacturing plant with PLCs on a segmented OT network. Picking the wrong tool means either overpaying for features you'll never configure, or deploying something that can't handle your actual environment.
This roundup covers seven tools that represent the real range of the ZTNA market in 2026. We looked at deployment model, identity integration depth, protocol support, and who each tool actually fits. No marketing copy. Just what each one does, where it shines, and where it falls short.
See All Zero Trust Network Access Vendors.
The full Zero Trust Network Access market mapped by company-size fit, deployment type, NIST coverage, and pricing. No analyst paywall.
Zscaler Private Access is the enterprise-grade ZTNA platform that most large organizations end up evaluating first, and for good reason. It brokers direct, one-to-one connections between users and specific applications, meaning your users never touch the corporate network. No lateral movement path. No exposed application ports. The AI-powered application segmentation is a genuine differentiator: it discovers applications automatically and generates policy recommendations, which matters enormously when you're inheriting a sprawling hybrid environment with hundreds of undocumented internal apps.
Where ZPA separates itself from most ZTNA tools is depth of inspection. Full inline Layer 7 inspection via AppProtection means you're not just controlling who gets to an app, you're inspecting the traffic itself for web attacks and identity-based exploits. Add DLP, ransomware prevention, and zero-day protection, and ZPA starts looking less like a VPN replacement and more like a full SSE stack for private application traffic. The workload-to-workload segmentation across AWS and Azure is also worth calling out: east-west traffic between cloud workloads is a common blind spot, and ZPA addresses it directly.
The ideal buyer is a mid-market to enterprise organization running a hybrid environment with a mix of on-prem and cloud apps, a distributed workforce, and a security team that has the bandwidth to configure and tune policies. The Private Service Edge option for on-premises ZTNA deployment is a nice touch for organizations with data residency requirements or latency-sensitive workloads that can't route through the cloud.
The trade-off is complexity and cost. ZPA is not a tool you deploy in an afternoon. The policy model is powerful but requires careful planning, especially around app segmentation. If you're a small team or a startup, the operational overhead will outweigh the benefits. Also worth noting: ZPA is part of the broader Zscaler platform, and you'll get the most value when you're also running ZIA. Buying ZPA in isolation is possible but leaves significant capability on the table.
Cloudflare Access
Cloudflare Access does one thing very well: it puts Cloudflare's global network in front of your internal applications and enforces identity-based access policies before any request reaches your infrastructure. No VPN client required for web apps. Users authenticate through your existing identity provider, and Cloudflare handles the policy enforcement at the edge. The attack surface reduction is real because your applications never need to be publicly routable.
What makes Cloudflare Access different from most ZTNA tools is the network it runs on. Cloudflare operates one of the largest anycast networks in the world, which means access latency is genuinely low for globally distributed teams. It also means you get DDoS protection and network-level resilience essentially for free as part of the architecture. For organizations already using Cloudflare for DNS or CDN, adding Access is a natural extension with minimal friction.
Cloudflare Access fits best for organizations that are cloud-first and need to secure SaaS and internal web applications without deploying agents everywhere. Startups and mid-market companies will find the pricing accessible and the setup fast. It's also a strong choice for organizations that need to give contractors or third parties scoped access to specific applications without onboarding them to a corporate VPN.
The limitation to be aware of is that Cloudflare Access is primarily a web application access tool. Non-web protocols and thick-client applications require Cloudflare Tunnel and the broader WARP client setup, which adds complexity. If your environment is heavy on legacy client-server applications or OT protocols, Access alone won't cover you. It's best evaluated as part of the broader Cloudflare One SASE stack rather than as a standalone ZTNA solution.
Google BeyondCorp
BeyondCorp is the original zero trust implementation. Google built it internally after the Aurora attacks in 2010 and spent a decade running their entire workforce on it before making it available externally. The core principle is simple and uncompromising: the network you're on is irrelevant. Access decisions are based entirely on user identity and device state. That's not a marketing claim, it's how Google actually operates.
The external product is delivered through Chrome Enterprise Premium, which bundles BeyondCorp's context-aware access capabilities with endpoint security features. The integration with Google Cloud Identity, Identity-Aware Proxy, and Google Cloud is tight and well-documented. If your organization is already deep in Google Workspace and GCP, BeyondCorp is the most natural ZTNA path. The Identity-Aware Proxy handles access to GCP resources and internal web apps with minimal configuration overhead.
The ideal deployment context is a Google-centric organization: Workspace for productivity, GCP for infrastructure, Chrome as the primary browser. In that environment, BeyondCorp is genuinely elegant. Device trust signals flow automatically, SSO works without friction, and policy enforcement is consistent across the stack. The context-aware access policies can evaluate device OS version, patch level, and security configuration before granting access.
The gotcha is ecosystem lock-in. BeyondCorp works best when you're all-in on Google. If you're running Azure AD, AWS, or a mix of identity providers, the integration story gets complicated quickly. It also lacks some of the advanced inspection capabilities you get with ZPA, and the product surface area is narrower than full SASE platforms. For non-Google shops, there are better-fitting options. For Google shops, it's hard to beat.
Cato Networks ZTNA
Cato Networks ZTNA is part of Cato's broader SASE platform, and that context matters. Unlike point ZTNA solutions, Cato delivers ZTNA as a function of a converged network and security stack that includes SD-WAN, SWG, CASB, and FWaaS. The ZTNA component enforces deny-by-default access policies based on user identity, device posture, and location, and it does so within the same policy engine that governs all other traffic on the Cato network.
The dual deployment model is worth understanding. Agent-based ZTNA gives you deep endpoint visibility and is the right choice for managed corporate devices. Service-based ZTNA uses connectors in the network and works without an agent on the endpoint, which is useful for unmanaged devices or environments where you can't push software to every machine. The reverse proxy support for unmanaged devices is a practical feature that many pure-play ZTNA tools handle poorly.
Cato fits best for organizations that want to consolidate their network and security stack rather than bolt on another point product. If you're already evaluating SD-WAN replacement or MPLS migration, Cato's converged approach means ZTNA comes along for the ride without a separate procurement and integration project. Mid-market organizations with distributed offices and a mix of remote and on-site users are the sweet spot.
The trade-off is that you're buying into the Cato platform, not just a ZTNA tool. If you only need ZTNA and have no interest in the broader SASE stack, Cato is probably more than you need and the pricing will reflect that. The lack of published integration details in the database also suggests the ecosystem is more self-contained than open, which matters if you're trying to feed access logs into a third-party SIEM or SOAR.
Akamai Enterprise Application Access
Akamai Enterprise Application Access brings something most ZTNA tools don't: a genuinely mature device posture assessment engine. Before granting access, EAA evaluates firewall status, OS patch level, and anti-malware installation on the endpoint. That's not unusual in concept, but Akamai's integration with CrowdStrike, Carbon Black, Cisco Duo, and others means the posture data is coming from your existing endpoint security stack, not a lightweight agent with limited visibility.
The integration list is one of EAA's strongest selling points. Okta, Azure AD, Ping, Google, and Cisco Duo on the identity side. CrowdStrike and Carbon Black on the endpoint side. Akamai MFA and Secure Internet Access for additional security layers. If you're running a mature security stack and want ZTNA that actually talks to your existing tools, EAA is worth a serious look. The SIEM integration for logging and auditing is also a practical necessity that not every ZTNA tool handles cleanly.
EAA supports both clientless access for web applications and client-based access for non-web applications, which gives it broader protocol coverage than tools that are purely web-focused. The multicloud support and centralized policy management make it viable for organizations with applications spread across AWS, Azure, and on-premises data centers. High availability and load balancing are built into the Akamai delivery infrastructure, so you're not managing that yourself.
The honest limitation is that EAA is an enterprise product with enterprise pricing and enterprise complexity. Akamai's strength is its global delivery network and its depth in application security, but that comes with a sales process and deployment engagement that smaller organizations will find heavy. If you're a startup or a small team, the operational overhead isn't justified. If you're a mid-market or enterprise organization with a mature security stack and a need for deep integration, EAA earns its place.
Tailscale
Tailscale is the ZTNA tool that engineers actually enjoy using. It's built on WireGuard, which means the cryptographic foundation is modern, audited, and fast. The mesh networking model is fundamentally different from the hub-and-spoke architecture of most ZTNA tools: devices connect directly to each other peer-to-peer, with NAT traversal handling the firewall and NAT bypass without requiring open inbound ports. The result is low-latency, encrypted connectivity that works from anywhere without a central chokepoint.
What makes Tailscale stand out in this category is the developer experience and the breadth of use cases it covers. Kubernetes cluster connectivity, CI/CD pipeline networking, IoT and edge device access, SSH management without bastion hosts: these are problems that traditional ZTNA tools either ignore or handle awkwardly. Tailscale handles them natively. MagicDNS gives every device on the tailnet a stable private DNS name, which eliminates a whole class of infrastructure management headaches.
Tailscale is the right choice for engineering-led organizations, startups, and teams that need to connect infrastructure across multiple clouds and environments without deploying a full SASE stack. The free tier makes it accessible for small teams. The commercial plans scale to enterprise. If your primary use case is developer access to cloud infrastructure, replacing a legacy VPN for a technical team, or securing CI/CD pipeline connectivity, Tailscale is probably the fastest path to a working zero trust network.
The trade-off is that Tailscale is a networking tool, not a full security platform. It doesn't do inline traffic inspection, DLP, or threat prevention. Access control policies are identity-based and least-privilege, but you're not getting Layer 7 inspection or CASB capabilities. For organizations that need those controls, Tailscale works best as part of a broader stack. Also, the peer-to-peer model means Tailscale's coordination server is in the path for key exchange and policy distribution, which is a dependency worth understanding for compliance-sensitive environments.
Armis Secure Remote Access
Armis Secure Remote Access exists because every other tool on this list was built for IT environments, and OT environments are different in ways that matter. PLCs don't run agents. PROFINET and Modbus don't behave like HTTP. Opening firewall ports for RDP and VNC in a plant network is a real operational risk. SRA addresses these constraints directly, providing identity-driven access to OT assets without requiring infrastructure changes or exposing industrial protocols to the internet.
The integration with Armis Centrix for OT/IoT Security is the key differentiator. Armis already has deep visibility into OT asset inventory and device behavior. SRA builds on that foundation to enforce access policies that are aware of the actual devices in the environment, not just generic network segments. Session recording and audit trails are table stakes for OT remote access, but the cross-zone connectivity without opening multiple firewall ports is a genuine operational improvement over legacy approaches.
SRA is purpose-built for mid-market and enterprise organizations running operational technology environments: manufacturing, utilities, critical infrastructure, building management. If you're a CISO or OT security engineer trying to give vendors and contractors remote access to industrial systems without putting a generic VPN in front of your plant network, this is the tool to evaluate. The access approval workflows and role-based controls map directly to the change management processes that OT environments require.
The limitation is scope. SRA is not a general-purpose ZTNA tool. It won't replace your IT remote access solution, and it's not designed to. If your environment is purely IT, look elsewhere. If you have OT assets and you're currently managing remote access with a patchwork of VPNs, jump servers, and vendor-specific tools, SRA is worth a serious evaluation. The Armis platform dependency is also worth noting: SRA is most valuable when you're already running Armis Centrix, and buying SRA as a standalone product without the broader platform context limits what you get.
How to Choose the Right Tool
ZTNA tools share a label but not a design philosophy. Before you evaluate vendors, get clear on your environment, your team's operational capacity, and what you're actually replacing. A WireGuard mesh tool and a full SASE platform both call themselves ZTNA. They solve different problems at different price points with different operational demands.
Know what you're replacing first. If you're replacing a legacy VPN for a remote workforce accessing web apps, almost any tool on this list works. If you're replacing privileged access to OT systems with PROFINET and Modbus, only Armis SRA is built for that. Matching the tool to the actual protocol and environment requirements eliminates half the field immediately.
Agent vs. agentless matters more than vendors admit. Agent-based ZTNA gives you device posture, deeper policy enforcement, and support for non-web protocols. Agentless is faster to deploy and works for contractors and unmanaged devices. Most enterprise deployments need both. Check whether the tool supports both models and how the policy engine handles the difference.
Identity provider integration is non-negotiable. Your ZTNA tool needs to talk to your IdP. If you're on Okta, Azure AD, or Ping, verify the integration is native and bidirectional, not just SAML-based SSO. Tools like Akamai EAA have deep integrations with multiple IdPs. BeyondCorp is tightly coupled to Google Cloud Identity. Know your IdP before you shortlist.
Evaluate the inspection depth you actually need. Some tools, like ZPA, do full Layer 7 inspection of private application traffic. Others, like Tailscale, are pure networking with no traffic inspection. If you need DLP or threat prevention on private app traffic, that narrows the field significantly. If you just need encrypted, identity-gated connectivity, you don't need to pay for inspection you won't use.
Cloud-native vs. hybrid deployment affects latency and compliance. Cloud-only ZTNA tools route traffic through vendor infrastructure. For latency-sensitive applications or data residency requirements, check whether the vendor offers on-premises or regional deployment options. ZPA's Private Service Edge and Akamai's local PoP deployment address this. Cloudflare Access and Tailscale are cloud-native with no on-prem option.
Operational overhead scales with team size. ZPA and Akamai EAA are powerful but require dedicated effort to configure and maintain. Tailscale and Cloudflare Access can be stood up by a single engineer in hours. If you're running a three-person security team, the operational cost of a complex platform is a real risk. Be honest about your team's capacity before committing to a platform that requires ongoing tuning.
Check the ecosystem integrations against your existing stack. ZTNA doesn't operate in isolation. You need access logs in your SIEM, device posture from your EDR, and identity signals from your IdP. Akamai EAA's integration list with CrowdStrike, Carbon Black, and Okta is a genuine advantage if you're running those tools. A tool with no published integrations is a tool you'll be building connectors for.
Understand the pricing model before you get to procurement. Most ZTNA tools price per user per month, but the definition of a user varies. Contractors, service accounts, and machine-to-machine connections can inflate your seat count unexpectedly. Tailscale's free tier is real and useful for small teams. Enterprise platforms like ZPA and Akamai EAA require a sales conversation and the price reflects the feature depth.
Frequently Asked Questions
What's the difference between ZTNA and a VPN?
A VPN grants network-level access, meaning a connected user can potentially reach anything on that network segment. ZTNA grants access to specific applications only, based on verified identity and device state. The practical difference is that a compromised VPN credential gives an attacker lateral movement; a compromised ZTNA credential gives access to one app.
Do I need an agent on every device to use ZTNA?
Not necessarily. Most enterprise ZTNA tools support both agent-based and agentless (clientless) modes. Agentless works for web applications via a browser and is common for contractor or unmanaged device access. Agent-based deployment gives you device posture assessment and support for non-web protocols, which is required for most enterprise use cases.
Can ZTNA replace PAM for privileged access?
Partially. ZTNA can control who gets to an RDP, SSH, or VNC session and enforce MFA before the connection. Tools like ZPA and Armis SRA include session recording and audit trails. But dedicated PAM tools offer credential vaulting, just-in-time provisioning, and deeper session analytics that ZTNA tools don't replicate. For OT and critical infrastructure, you likely need both.
Is Tailscale actually zero trust or just a modern VPN?
Tailscale implements zero trust principles: identity-based access, least-privilege policies, and device authentication via WireGuard. It's not a traditional VPN in the hub-and-spoke sense. The distinction that matters is that Tailscale doesn't do traffic inspection or threat prevention, so it's zero trust for access control but not a full security platform.
Which ZTNA tools work for OT and industrial environments?
Armis Secure Remote Access is the only tool on this list purpose-built for OT environments, with native support for PROFINET, Modbus, and identity-driven access to PLCs. Most IT-centric ZTNA tools can handle RDP and SSH to OT jump servers, but they lack the protocol awareness and asset context that industrial environments require.
How do I evaluate ZTNA tools if I'm already using a SASE platform?
Check whether your SASE vendor's ZTNA component meets your requirements before adding a point solution. Cato Networks, for example, includes ZTNA as part of its converged platform. Adding a separate ZTNA tool on top of a SASE stack creates policy fragmentation and duplicate logging. If your SASE ZTNA has gaps, document them specifically before evaluating alternatives.
Conclusion
The ZTNA market in 2026 is mature enough that there's a right tool for most environments, but not a single tool that's right for all of them. Zscaler ZPA and Akamai EAA are the enterprise workhorses with deep inspection and broad integration. Cloudflare Access and Tailscale are the fast-moving options for cloud-native teams that need results without a six-month deployment project. BeyondCorp is the obvious choice if you're already committed to Google's ecosystem. Cato makes sense if you're consolidating network and security into a single platform. And if you have OT assets, Armis SRA is in a category by itself. Start with your environment, your team's capacity, and the protocols you actually need to protect. The right answer follows from there. You can compare any of these tools side by side at /compare, or browse the full ZTNA category at /tools to see what else is in the market.
Skip the Vendor Demos. Compare Zero Trust Network Access Tools in 10 Seconds.
Side-by-side features, integrations, and ratings for Zero Trust Network Access tools.
Cloudflare Access is a zero trust network access solution that secures applications and resources by implementing identity-based authentication and authorization without traditional VPN infrastructure.
