Best On-Premises Zero Trust Security Software of 2026

ManageEngine Endpoint Central implements a Zero Trust security framework by applying stringent access restrictions, least-privilege principles, and ongoing verification of endpoints for all devices and users within the organization. The endpoint privilege management feature eliminates unnecessary local admin rights and substitutes permanent privileges with temporary, role-specific access, ensuring that users possess no more permissions than their job necessitates. The application control system adopts a default-deny strategy, permitting only those applications that are trusted and authorized to run, while blocking all others by default. Device control capabilities limit the connection of unauthorized peripherals and removable media. Additionally, private access facilitates secure, identity-based connections to internal applications for remote users, removing implicit trust and guaranteeing that every access request is scrutinized, approved, and documented throughout the entire endpoint ecosystem.

Kitecyber implements a zero trust model directly within your infrastructure, beginning at the endpoint instead of relying on a cloud intermediary that your data must reroute through. This solution utilizes a streamlined agent that enforces least-privilege access for private applications and infrastructure, making decisions based on comprehensive context from the device, user, and network. With a foundation built on device trust, access is provided without the use of passwords, eliminating the risk of credential theft. It seamlessly integrates with single sign-on services such as Okta, Google, and Microsoft. The system operates on a least-privilege, just-in-time authorization basis, granting users access to specific subnets only when needed, thereby minimizing potential lateral movement by design. All connections are secured with end-to-end encryption within your own infrastructure, avoiding the need for any decrypting and re-encrypting processes along the way. You maintain control over your infrastructure and keys: choose between Software as a Service (SaaS), self-hosted solutions, or bring your own keys. Transition from outdated VPN systems to this modern approach and launch within a day or two with zero-touch provisioning.

Kasm Workspaces streams your workplace environment directly to your web browser…on any device and from any location. Kasm is revolutionizing the way businesses deliver digital workspaces. We use our open-source web native container streaming technology to create a modern devops delivery of Desktop as a Service, application streaming, and browser isolation. Kasm is more than a service. It is a platform that is highly configurable and has a robust API that can be customized to your needs at any scale. Workspaces can be deployed wherever the work is. It can be deployed on-premise (including Air-Gapped Networks), in the cloud (Public and Private), or in a hybrid.

Both IT teams and end users are afflicted by password reset tickets. IT teams will often push more urgent issues down the queue to ensure that users don't have their work put on hold while their passwords reset. Password reset tickets can be costly if they aren't addressed promptly. Nearly 30 percent of all help desk tickets were caused by forgotten passwords. It is not surprising that large companies have spent more than $1 million to resolve password-related help desk requests. It is a good habit to change passwords regularly, as it helps prevent cyberattacks caused by stolen credentials. Security experts recommend that administrators ensure that users change their passwords regularly and have password expiration policies in place.

UTunnel Secure Access delivers Cloud VPN, ZTNA, and Mesh Networking solutions to ensure secure remote access and smooth network connectivity. ACCESS GATEWAY: Our Cloud VPN as a Service enables quick deployment of Cloud or On-Premise VPN servers. Utilizing OpenVPN and IPSec protocols, it facilitates secure remote connections with policy-based access control, allowing you to easily establish a VPN network for your business. ONE-CLICK ACCESS: The Zero Trust Application Access (ZTAA) solution transforms secure access to internal business applications such as HTTP, HTTPS, SSH, and RDP. Users can access these applications through web browsers without needing client software. MESHCONNECT: This Zero Trust Network Access (ZTNA) and mesh networking solution provides granular access controls to specific business network resources and supports the creation of secure interconnected business networks. SITE-TO-SITE VPN: The Access Gateway solution also allows for the setup of secure IPSec Site-to-Site tunnels. These tunnels can connect UTunnel's VPN servers with other network gateways, firewalls, routers, and unified threat management (UTM) systems.

Cipherise for developers. All you need to create powerful and user-friendly authentication. Your users will have the best experience possible. Multi-Factor Authentication. MFA is simple and highly secure, which is almost invisible to end users. No complex passwords. No more complicated passwords, usernames, or credential sharing Omni Channel. The user experience is consistent regardless of whether it's on a mobile, tablet, laptop, or PC. Hackers are no longer able to access centralized credential Honeypots. Bi-Directional authentication. Before the user authenticates to it, the service authenticates to them. Mobile Native. Mobile Native. Protect your valuable IP and Content. We make it easy for your customers to sign up and access your content from any device.

A comprehensive data security solution that includes ZTNA, 2FA and PAM. It also integrates SQL Firewall, DAM, DAM, PAM and SQL Firewall. This helps businesses prevent data theft and cyber attacks. It also helps them meet compliance and cyber insurance requirements.

OpenVPN Access Server is a self-hosted Zero Trust Network Access (ZTNA) solution you deploy into your own environment — on-prem or your AWS, Azure, or GCP account — so tunnel traffic and configuration never touch a third-party network. Access is enforced by application, not IP or subnet: each user reaches only the app they're entitled to, identified by domain name, with no visibility into anything else. That structurally blocks lateral movement — there's no connectivity path for a breach to exploit. With Access Server Link, deployment is a guided setup (hostname, cloud, region, password) with SSL certificates auto-provisioned and renewed, removing manual cert management as an attack surface. Entitlements tie to hostname, so they survive IP changes and autoscaling without rework. Your instance stays fully under your control, preserving the data ownership and audit posture required for HIPAA, SOC 2, and GDPR — full sovereignty over the control plane, with SaaS-level simplicity. The admin portal replaces SSH-based management: users, certificates, and access policies are configured through a browser, so shell access isn't required, shrinking your attack surface. The Zero Trust App Broker mediates every connection through a placeholder IP scoped to one authorized application — users never learn the real destination, so a compromised credential can't be used to probe or discover other systems. This enforces least privilege by design, not just by policy that can drift or be misconfigured. Client apps span Windows, macOS, iOS, Android, and Linux, so identity- and application-based controls apply consistently across devices. Deployment runs through preconfigured templates on AWS, Azure, and GCP, giving security teams repeatable, auditable rollouts.

Forescout serves as an all-encompassing cybersecurity solution that delivers real-time insights, control, and automation to effectively manage risks associated with various devices and networks. The platform equips organizations with the tools needed to observe and safeguard a wide spectrum of IT, IoT, and operational technology (OT) assets, ensuring they remain well-protected against cyber threats. By implementing Forescout's Zero Trust approach alongside its integrated threat detection features, companies can enforce compliance for devices, manage secure access to networks, and maintain ongoing monitoring to identify vulnerabilities. Tailored for scalability, Forescout’s platform furnishes valuable insights that enable organizations to reduce risks and boost their security stance across multiple sectors, including healthcare, manufacturing, and beyond. The comprehensive nature of Forescout's offerings ensures that businesses are better prepared to navigate the evolving landscape of cyber threats.

Fortinet stands out as a prominent global entity in the realm of cybersecurity, recognized for its all-encompassing and cohesive strategy aimed at protecting digital infrastructures, devices, and applications. Established in the year 2000, the company offers an extensive array of products and services, which encompass firewalls, endpoint security, intrusion prevention systems, and secure access solutions. Central to its offerings is the Fortinet Security Fabric, a holistic platform that effectively melds various security tools to provide enhanced visibility, automation, and real-time intelligence regarding threats across the entire network. With a reputation for reliability among businesses, governmental bodies, and service providers across the globe, Fortinet places a strong emphasis on innovation, scalability, and performance, thereby ensuring a resilient defense against the ever-evolving landscape of cyber threats. Moreover, Fortinet’s commitment to facilitating digital transformation and maintaining business continuity further underscores its role as a pivotal player in the cybersecurity industry.

InstaSafe is redefining the challenge of secure access to modern networks by leveraging Zero Trust principles with its security solutions, that ensure seamless access to cloud applications, SAP applications, on-premise data, IoT devices, and multiple other neoteric use cases. InstaSafe discards traditional VPN based conceptions of a network perimeter, instead moving the perimeter to the individual users and the devices they access. The Zero Trust approach followed by InstaSafe mandates a “never trust, always verify' approach to privileged access, without focusing on network locality.

The FileFlex Enterprise ZTDA platform ensures safe remote access and sharing of data throughout your entire Hybrid-IT environment, safeguarding your most critical asset—corporate data. Utilizing its patented Zero Trust Data Access (ZTDA) architecture, FileFlex Enterprise implements advanced, detailed micro-segmentation at the file and folder level, significantly limiting an intruder's capability to navigate laterally within your organization. This platform verifies and permits every action requiring remote data access while keeping your network infrastructure secure and operating without a VPN. Users can remotely access and share data stored on-premises, including servers, server-attached, network-attached, FTP, and personal computer storage. IT teams retain comprehensive control over permissions for all users and storage locations, enabling management down to the individual file level. Additionally, IT can monitor and oversee all user activities with precision, ensuring optimal security and compliance. This robust oversight not only enhances data safety but also fosters a more efficient operational environment.

NetBird is a cutting-edge open-source platform for Zero Trust Networking, created by engineers specifically for their peers. It offers a streamlined approach to establishing secure private networks by harnessing the powerful WireGuard® protocol. In contrast to conventional VPNs, NetBird facilitates decentralized, low-latency, and high-throughput private networks, all managed through a single console that prioritizes identity-based access control. By integrating effortlessly with your Identity Provider for Single Sign-On (SSO) and Multi-Factor Authentication (MFA), it enables direct, encrypted peer-to-peer connections among devices, servers, and clouds, eliminating central bottlenecks or single points of failure. The lightweight clients allow for easy scalability and enhanced privacy, ensuring that traffic does not traverse management services. NetBird is compatible with numerous integrations, including CrowdStrike, Intune, SentinelOne, pfSense, and others. It is perfectly suited for Zero Trust remote access, multi-cloud connectivity, dynamic posture assessments, comprehensive auditing, and multi-tenant management for Managed Service Providers (MSPs), all accessible from a single, intuitive platform. Furthermore, its focus on security and efficiency makes it an attractive choice for organizations looking to enhance their network infrastructure.

ZTXGate represents a cutting-edge Zero Trust Network Access (ZTNA) solution that merges the intuitive experience of a contemporary SaaS control plane with the benefits of on-premises software, including deployment flexibility, data sovereignty, and isolated blast-radius capabilities. Each client utilizes a unique single-tenant instance to ensure optimal security and performance. The platform facilitates identity federation through OIDC SSO for the administrative portal, featuring a per-provider registry, PKCE implementation, group-to-role mapping, and a local break-glass conversion. It also supports SCIM 2.0 inbound provisioning via a dedicated hardened listener equipped with per-token bearer authentication, CIDR allowlisting, and rate limitations. The system enables cross-protocol identifier linkage to ensure that an OIDC login and a SCIM-provisioned user are recognized as a single identity. Additionally, ZTXGate offers a pluggable biometric step-up solution that allows for push challenges through its own authenticator (ZTXBAS), as well as Okta Verify Push and Duo Push, all governed by a unified policy field. Resource-specific policies determine the backend in use, while API credentials are securely encrypted at rest. Furthermore, the platform incorporates MDM and EDR device posture as a crucial element of its policy framework, supporting integrations with Microsoft Intune, Defender, and SentinelOne Singularity to enhance overall security posture and compliance.

Smallstep is a Device Identity Platform™ designed to close a critical gap in Zero Trust security by authenticating devices, not just users. Using ACME Device Attestation, it creates hardware-bound credentials that prove a device’s authenticity and ownership with cryptographic certainty. These credentials protect access to corporate Wi-Fi, VPNs, SaaS tools, cloud workloads, source code, and sensitive data. Co-developed with Google and standardized at the IETF, ACME DA modernizes legacy approaches like SCEP with stronger guarantees and simpler automation. Smallstep works across macOS, Windows, Linux, iOS, and Android, making it ideal for heterogeneous environments. With deep integrations across enterprise IT and DevOps stacks, it delivers scalable, high-assurance device security without operational complexity.

The way we work has changed. People can now work anywhere and not only from their office. Applications are now hosted in the cloud and not on-premise. The company network perimeter is now distributed across the internet. Traditional, network-centric VPNs for remote access are not only difficult to maintain and outdated, but also expose businesses to security risks. It is expensive and time-consuming to purchase, deploy, and maintain VPN infrastructure. Hackers can expose entire networks if they are unable to secure access at the application level. Twingate allows organizations to quickly implement a zero trust network that is more secure than VPNs. Twingate is a cloud-based service that allows IT teams to quickly set up a software-defined perimeter without having to change infrastructure. It also centrally manages user access to internal apps, no matter if they are in the cloud or on-prem.

Shieldoo, a next-generation private network that allows remote connection from anywhere, was built using the well-known open-source Nebula tool. The Shieldoo secure network is composed of nodes, lighthouses, and an admin centre. The nodes are the user device, the server, the cloud stack, and the LAN acces box. Two nodes can discover each other via a lighthouse, and then connect peer to peer. Shieldoo makes it easy to build complex security infrastructures. The wizard will help you set up your security infrastructure. Administration is handled in the admin centre. You only pay for the users and servers that are accessed in the network each month. The complete feature set is available to you: unlimited admin accounts, MFA, domain of your choice, and unlimited SSO.

Ivanti Connect Secure delivers enterprise-grade remote access and zero trust connectivity through a single unified client, eliminating the need to manage separate VPN and LAN access tools. IT and security teams gain centralized policy enforcement with real-time device and identity verification at every access request, reducing the risk of unauthorized access and lateral movement across the network. Adaptive multi-factor authentication supports biometrics, hardware tokens, FIDO2 passwordless authentication passkeys, time-based one-time passcodes, and integration with leading identity providers including Okta, Azure AD, and Google. Endpoint compliance checks assess device posture before granting access, with automatic quarantine and remediation for non-compliant devices. Deployed on hardware, virtual, or cloud appliances, including VMware, Azure, AWS, and GCP, ICS scales from 250 to 45,000 concurrent users. NIST Federal Information Processing Standards certification and integrated web application firewall protection help ensure organizations meet stringent compliance requirements while maintaining high performance across distributed, hybrid environments.

SonicWall Cloud Edge Secure Access is designed to meet the demands of a business environment that operates anytime and anywhere, accommodating both on-premises and cloud-based needs. It provides a straightforward network-as-a-service solution for both site-to-site and hybrid cloud connections, integrating Zero-Trust and Least Privilege security within a single framework. Given the rise in remote work, organizations are increasingly realizing the necessity of moving beyond conventional perimeter-based security measures to secure their hybrid cloud resources. By leveraging SonicWall’s efficient and economical Zero-Trust and Least Privilege security model, businesses can effectively address the expanding attack surface and prevent the lateral spread of threats, whether internal or external. Collaborating with Perimeter 81, Cloud Edge Secure Access ensures that unauthorized users are kept at bay while allowing trusted personnel restricted access tailored to their needs. This solution simplifies the authentication process for anyone, on any device, from any location, making secure access more accessible than ever. As a result, organizations can enhance their overall security posture while supporting the evolving work landscape.

Utilize Azure ExpressRoute to establish secure private links between Azure data centers and your local infrastructure or colocation setups. Unlike standard internet connections, ExpressRoute pathways do not traverse the public internet, providing enhanced reliability, quicker speeds, and reduced latencies. This approach can lead to considerable cost savings when transferring data between your on-site systems and Azure. Moreover, ExpressRoute enables you to seamlessly connect and expand the compute and storage capabilities of your current data centers. With its high throughput and rapid response times, Azure will integrate seamlessly as an extension of your existing environments, allowing you to leverage the scalability and economic advantages of the public cloud while maintaining optimal network performance. This combination ensures that you can efficiently manage workloads and data transfer without compromising on speed or reliability.

Preventing data loss, malware attacks, and phishing threats can be achieved with a high-performance Zero Trust application access and internet browsing solution. Relying on conventional tools to connect staff to corporate applications often results in granting too much trust, which can lead to significant data vulnerabilities. The complexity of managing the corporate perimeter has increased due to conflicting configurations among your VPNs, firewalls, proxies, and identity providers. Nowadays, interpreting logs and understanding user access to sensitive information has become more challenging than ever. It is crucial that your employees, partners, and customers have access to a network that is not only secure but also fast and dependable for their tasks. By utilizing Cloudflare Zero Trust, traditional security boundaries are replaced with our expansive global edge, enhancing both speed and safety for teams worldwide. This approach ensures that uniform access controls are applied across cloud-based, on-premise, and SaaS applications, promoting a seamless and secure user experience. As the landscape of cybersecurity continues to evolve, adapting to these changes is essential for maintaining robust protection against emerging threats.

Remote Safely provides an additional layer of Zero-Trust security to mitigate residual risks that can be associated with remote work. Remote Safely is a combination of multiple security controls, such as AI-based risk detection, VDI, and SOC workforce capabilities, to provide effective protection against data breaches caused either by low- or high-tech attacks. This includes visual hacking. Remote Safely is a better alternative to the current zero-trust approach. It only allows access to critical data and continuously verifies identity via biometric screening of remote work environments. The solution verifies the identity and detects suspicious events to prevent data being accessed or viewed by anyone other than the person who is located in the camera view area. Remote Safely allows businesses to offer greater flexibility for their workforce. This allows them to allow their teams to concentrate on what they do best, and their data to be secure.

FerrumGate is an Open Source Zero Trust Network Access project (ZTNA). It uses advanced identity management and access management technologies to provide secure access to your network. Multi-factor authentication, continuous monitoring and granular access controls. It can be used for secure remote access, cloud security, Privileged Access Management, Identity and Access Management, Endpoint security, and IOT connectivity.

Intel Trust Authority operates as a zero-trust attestation service designed to guarantee the security and integrity of applications and data in diverse settings, such as various cloud environments, sovereign clouds, edge computing, and on-premises setups. This service conducts independent verification of the trustworthiness of compute assets, which includes infrastructure, data, applications, endpoints, AI/ML workloads, and identities, thereby affirming the validity of Intel Confidential Computing environments like Trusted Execution Environments (TEEs), Graphical Processing Units (GPUs), and Trusted Platform Modules (TPMs). It provides confidence in the authenticity of the operating environment, regardless of how the data center is managed, effectively addressing the essential need for a clear separation between cloud infrastructure providers and those who verify them. By enabling the expansion of workloads across on-premises, edge, multiple cloud, or hybrid deployments, Intel Trust Authority offers a consistent attestation service that is fundamentally rooted in silicon technology. This ensures that organizations can maintain robust security measures as they navigate increasingly complex computing landscapes.

The Hyperport is an integrated solution for secure user access that combines Zero-Trust Network Access (ZTNA), Privileged Access Management (PAM), and Secure Remote Access (SRA) into a single, adaptable framework, facilitating rapid connections for internal personnel, remote workers, vendors, and external partners without sacrificing security. This system upholds the principle of least privilege throughout an organization’s entire infrastructure, encompassing everything from Windows and web applications to industrial control systems, by implementing just-in-time authorization, multi-factor authentication across all security zones, real-time monitoring, session recording, and dynamic entitlement management. Designed to accommodate hybrid, cloud, and on-premises deployments with support for multiple sites, it allows for centralized administration across IT, OT, ICS, and CPS environments; additionally, it provides browser-based access portals (Web, RDP, SSH, VNC), encrypted file transfers, immutable audit logs, micro-segmentation, and stringent policy enforcement to minimize the potential attack surface. Moreover, the platform's robust features ensure that organizations can efficiently manage user access and maintain compliance with security standards, ultimately enhancing overall cybersecurity posture.