Best Software-Defined Perimeter (SDP) Software

If you’ve ever dealt with slow VPNs, or clunky ZTNA agents that degrade app performance, you’re not alone. Many IT teams are stuck balancing security with usability—and often end up sacrificing both. Here is a different approach. The high-performance ZTNA service that is part of a personal SASE solution from Cloudbrink can upgrade or replace traditional VPNs while fixing the performance and complexity that come from other vendors in the ZTNA and SASE space. Built as a software-only service, Cloudbrink delivers sub-20ms latency and 1Gbps+ speeds per user using dynamically deployed FAST edges and a proprietary protocol that recovers packet loss before it impacts the app. Security isn’t bolted on—it’s built in. With mutual TLS 1.3, short-lived certs, and no exposed IPs, Cloudbrink provides real zero trust without making users suffer through poor connections or overloaded POPs. If you’ve been burned by “next-gen” solutions that still feel like 2008, it might be time for something new.

UTunnel provides Cloud VPN, ZTNA, and Mesh Networking solutions for secure remote access and seamless network connectivity. ACCESS GATEWAY: Our Cloud VPN as a Service offers swift deployment of Cloud or On-Premise VPN servers. It utilizes OpenVPN and IPSec protocols, enables policy-based access control, and lets you deploy a Business VPN network effortlessly. ONE-CLICK ACCESS: A Zero Trust Application Access (ZTAA) solution that simplifies secure access to internal business applications. It allows users to securely access them via web browsers without the need for a client application. MESHCONNECT: This Zero Trust Network Access (ZTNA) and mesh networking solution based on WireGuard enables granular access controls to business network resources and easy creation of secure mesh networks. SITE-TO-SITE VPN: The Access Gateway solution lets you easily set up secure Site-to-Site tunnels (IPSec) between UTunnel's VPN servers and hardware network gateways, firewalls & UTM systems.

GoodAccess is a cybersecurity platform (SASE/SSE) that empowers medium-sized enterprises to easily implement Zero Trust Architecture (ZTA) in their infrastructure, regardless of its complexity or scale. By leveraging a Low-Code/No-Code approach, GoodAccess delivers a hardware-free, rapid deployment solution within hours or days, allowing companies to enhance their security without the need for in-house IT experts. Our platform ensures seamless integration with modern SaaS/cloud applications as well as legacy systems, protecting critical assets for remote and hybrid workforces. GoodAccess serves businesses with 50-5000 employees across diverse industries, particularly those adopting multi-cloud and SaaS environments. Start your 14-day full-featured free trial.

As AI-driven vulnerability and exploitation accelerate attack velocity to machine speed, Forescout is a foundational cyber defense layer that allows organizations to segment and isolate compromised systems, block lateral movement, and automate response across IT, OT, IoT, and IoMT environments. The Forescout Vistaro™ platform, powered by agentic AI and enhanced with Vedere Labs threat intelligence, delivers a Universal Zero Trust Network Access (UZTNA) architecture that integrates seamlessly with 180+ security and IT products. With Forescout Vistaro, organizations get comprehensive inventory and classification of both managed and unmanaged assets, continuous exposure management, and real-time protection including dynamic network segmentation and automated threat response.

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. InstaSafe ZTAA relies on continuously assessing the trust and risk associated with every user, and the context of their access request, and simultaneously employs a system of comprehensive authentication before grnating least privilege access. By only making authorised applications accessible to the user, and not exposing the network to these users, ZTAA serves to negate the exploitable attacks surface

CloudConnexa is OpenVPN's cloud-delivered Zero Trust Network Access (ZTNA) platform that also delivers core Security Service Edge (SSE) capabilities, replacing legacy VPN infrastructure with a fully managed, cloud-native service. Signing up provisions a private overlay network spanning 30+ global regions in a full-mesh topology for low-latency, redundant connectivity. Network and Host Connectors attach private networks, servers, and IoT devices, while OpenVPN tunnels (with Data Channel Offload for higher throughput) secure remote-user, site-to-site, and internet access. Identity-based access rules, integrated with SAML, LDAP, and SCIM, ensure users reach only authorized resources. Built-in Cyber Shield adds DNS content filtering, IDS/IPS, device identity verification, and 2FA. Domain-based routing cloaks server IPs for microsegmentation. It's all managed from one cloud dashboard, giving organizations scalable, zero-trust connectivity without running their own VPN servers.

Trustgrid is the SD-WAN for application providers. The Trustgrid platform uniquely addresses the needs of SaaS application providers who rely on remote systems. By combining an SD-WAN 2.0, edge computing, and zero trust remote access into a single platform we allow software providers to manage and support distributed application environments from the cloud to the edge. With the Trustgrid platform you can: • Build cloud to on-premise networks at scale • Manage and support 100s of networks from a single pane of glass • Control on-premise apps and appliances as if they were in the cloud • Run and support Docker containers in any cloud or on-premise • Provide your support teams secure access to edge application environments Simplify connectivity, enhance security, and guarantee network availability with Trustgrid.

Ensure least-privilege user access to specific business resources without granting excessive access to your corporate network, or exposing applications to the Internet. Avoid deploying agents on BYOD or third-party devices and the friction that comes with it. Support access to web apps, SSH, RDP and Git without a client. Analyze how users interact with your business applications to better detect anomalies, flag potential issues, and ensure networking remains aware of changes in security controls. Use key tech integrations to automatically verify and adapt access rights based on changes in context to protect data and always ensure least-privilege access. Make private apps invisible to the Internet, keep users off the network, and deliver a safer connection to SaaS apps.

Least privileged application access with consistent security for any user, anywhere. Transient authentication provides granular, least-privileged access to mission-critical infrastructure. Zentry Trusted Access provides clientless, browser-based, streamlined zero-trust application access for small to medium-sized enterprises. Organizations see gains in security posture and compliance, a reduced attack surface, and greater visibility into users and applications. Zentry Trusted Access is a cloud-native solution that is simple to configure, and even simpler to use. Employees, contractors, and third parties just need an HTML5 browser to securely connect to applications in the cloud and data center, no clients are needed. Leveraging zero trust technologies like multi-factor authentication and single sign-on, only validated users obtain access to applications and resources. All sessions are encrypted end-to-end with TLS, and each is governed by granular policies.

Use Azure ExpressRoute to create private connections between Azure datacenters and infrastructure on your premises or in a colocation environment. ExpressRoute connections don't go over the public internet, and they offer more reliability, faster speeds, and lower latencies than typical internet connections. In some cases, using ExpressRoute connections to transfer data between on-premises systems and Azure can give you significant cost benefits. Use ExpressRoute to both connect and add compute and storage capacity to your existing datacenters. With high throughput and fast latencies, Azure will feel like a natural extension to or between your datacenters, so you enjoy the scale and economics of the public cloud without having to compromise on network performance.

Aruba ESP (Edge Services Platform) is a next-generation, cloud-native architecture that enables you to accelerate digital business transformation through automated network management, Edge-to-cloud security, and predictive AI-powered insights with up to 95% accuracy. Only ESP delivers faster everything, time to remediation, speed of security protection, scaling of users and locations, and operational AIOps on a single, cloud-native architecture. Dynamic segmentation and policy enforcement rules to secure new devices. Cloud-managed orchestration across wired, wireless, and WAN. Ultimate flexibility, in the cloud, on-premises, or consumed as a service. Gain context, visibility, and control over all domains through a cloud-native, uniform console for Wi-Fi, wired, and WAN infrastructure. Aruba’s Unified Infrastructure simplifies and improves IT operations across campus, branch, remote, data center, and IoT networks, all managed and orchestrated in the cloud or on-prem.

The one-of-a-kind PICOS open NOS with tightly coupled control planes gives network operators surgical, non-disruptive control of their enterprise applications, deep and dynamic traffic monitoring, and even attack mitigation, all in real time. There’s no better way to implement zero-trust networking and software-defined perimeters than PICOS. Our flagship open network operating system installs on 1G- to 100G-interface open switches from a broad array of Tier 1 manufacturers. This fully featured license offers the most comprehensive support for enterprise features on the market. It includes the Debian Linux distribution, with an unmodified kernel for maximum DevOps programmability. Enterprise Edition also includes AmpCon, an Ansible-based automation framework that couples Zero-Touch Provisioning (ZTP) with the Open Network Install Environment (ONIE) to simplify installation and operation of open network switches across the enterprise.

Advanced managed detection and response to secure the distributed enterprise. Expert guided security operations for early detection and automated response to mitigate risk across the enterprise. Preemptively detect malicious activity and respond to active threats before the endpoint is compromised. Efficiently discover and remediate critical threats and vulnerabilities across the enterprise. Extensive experience across our team has led us to an important realization too often overlooked: each organization has unique aspects and requirements for its cyber solutions. No team is exactly the same and your threats aren’t either. We developed the Squad Delivery Model to foster collaborative, high touch, tailored services that meet your specific needs and requirements.

NetFoundry is an identity-first Zero Trust workload connectivity platform designed to secure connections between applications, APIs, machines, AI agents, sites, cloud environments, and operational technology systems. Built on the OpenZiti open source platform, it creates private, policy-controlled connections without relying on traditional inbound ports, VPN tunnels, or IP-based trust. Each workload receives a cryptographic identity, and connections are established only after mutual authentication and identity-based policy authorization. NetFoundry supports use cases including AI security, microsegmentation, site-to-site connectivity, API security, OT and IoT connectivity, and embedded Zero Trust for solution providers. Its outbound-only architecture helps reduce attack surface, limit lateral movement, and simplify connectivity across heterogeneous networks with overlapping address spaces.

Symantec Secure Access Cloud is a SaaS solution that enables more secure and granular access management to any corporate resource hosted on-premises or in the cloud. It uses Zero Trust Access principles in delivering point-to-point connectivity without agents or appliances, eliminating network level threats. Secure Access Cloud provides point-to-point connectivity at the application level, cloaking all resources from the end-user devices and the internet. The network-level attack surface is entirely removed, leaving no room for lateral movement and network-based threats. Its simple-to-set, fine-grained and easy-to-manage access and activity policies prevent unauthorized access to the corporate resources by implementing continuous, contextual (user, device and resource-based context) authorization to enterprise applications allowing secured employee, partners and BYOD access.

Security is an arms race. Innovation happens simultaneously on the attack and protects sides of the environment. By authenticating identity and implementing security policy at the earliest possible time, on the first packet of a network session setup, BlackRidge provides deterministic, scalable, and cost-effective cyber defense. BlackRidge Transport Access Control (TAC), using our patented First Packet Authentication™, provides a new level of cyber defense for network and cloud resources. TAC operates pre-session, in real-time, before other security defenses engage. TAC is address and topology independent, supporting NAT and automatically adjusting to changing network topologies. Cyber-attacks are stopped dead in their tracks by preventing unauthorized users and attackers from performing reconnaissance of network and cloud resources, and by denying them the ability to communicate anonymously.

The industry's fastest remote access system that exceeds cybersecurity standards. Remote access is useful only if your team chooses to use it. That means it must be more than a security spec sheet. It must be fast, intuitive, and yes, look good. A person on a company's warehouse tablet selects the system they need to reach. Device and protocol whitelisting are hidden from view. The intense escalation of demand under COVID broke the administrative processes underlying most remote access systems. Reestablish and maintain coherent control of your networks using Dispel, a platform built to condense information to the essentials and automate the task waterfalls that would otherwise bog down changepoint decisions. A vendor requests access through a form by defining their identity, reason for access, access scope, and time frame. The request is logged and automatically sent to an administrator, who can approve or deny the request.

Fortinet FortiGate delivers fast, scalable, and flexible Secure SD-WAN for cloud-first, security-sensitive, and global enterprises. Our security-driven networking approach consolidates SD-WAN, next-generation firewall (NGFW), and advanced routing to deliver superior quality of experience at any scale. Accelerate network and security convergence, and simplify WAN architecture. Orchestrate consistent network and security policies. Achieve operational efficiencies through automation, deep analytics, and self-healing. Fortinet Secure SDWAN (software-defined wide-area network) solution enables enterprises to transform and secure all WAN edges. Leveraging the Security-driven Networking approach that uses one operating system and one centralized management console, enterprises realize superior user experience, enhanced security posture effectiveness with converged networking and security, and achieve operational continuity and efficiency.

Verizon Software Defined Perimeter (SDP) is a Zero Trust approach to networking for remote access, internal networks and cloud applications. The high-performance solution can help defeat network-based attacks from unauthorized users and devices. One of the top concerns of CIOs today is cloud adoption with many enterprises using two or more cloud vendors. This provides great agility, but often involves the hairpinning of data to access the applications. That makes for lower performance and slower access for users. A second concern is that more employees and contractors are working from home. Verizon SDP can help solve these problems, isolating enterprise and cloud applications from unauthorized users and devices while providing direct, fast access to applications for authorized users on authorized devices.

The FIPS 140-2 and Common Criteria EAL4+ certified Certes Enforcement Points (CEPs) are multi-layer encryption appliances that provide data protection and application segmentation. Delivering security products that have been tested and validated against these rigorous standards is critical to helping organizations and government agencies comply with data protection regulations. These CEPs integrate easily into any existing network and operate transparently to the network infrastructure, which ensures all data is encrypted without impacting network performance. The CEPs are interoperable with our key management software, CryptoFlow® Net Creator, and are easy to install, scalable for any size infrastructure, and simple to manage. With dedicated CEP appliances, customers experience high encryption throughput without impacting performance. With ultimate simplicity and flexibility, CEPs are used to support encryption at any network layer, providing security management and protection.