Best Software-Defined Perimeter (SDP) Software for On-Premises of 2025

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.

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.

Big Network connects networks and services securely and easily between people, places and clouds from anywhere. We combine simplicity with mesh-vpn, cloud services and sdwan with one button. Big Network also offers broadband services, a cloud marketplace, and a partner network. Accenture estimates that 83% of businesses will continue to operate with hybrid workforces. Big Network allows users to securely and easily connect networks and services between their offices, homes, workplaces, clouds, and other devices. Private networking can be expensive, complicated, and difficult. There are many legacy technologies available, each driven by a different ecosystem of software and hardware vendors.

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.

Trustgrid is the SD-WAN for software providers. The Trustgrid platform uniquely addresses the needs of SaaS application providers who rely on customer or partner-controlled environments. 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. Simplify connectivity, enhance security, and guarantee network availability with Trustgrid.

Zero trust access to the cloud or data center. Secure, reliable access leads to higher productivity and lower costs. Before granting access to cloud, it ensures compliance. Data protection via lockdown mode and always-on VPN. This is the most widely used SSL VPN for all sizes of organizations and in every industry. One client allows remote and on-site access to reduce management complexity. Directory Services, Identity Services. Before connecting, ensure that all devices meet security requirements. Access to cloud-based and on-premise resources is simple, secure, and easy. On-demand, per application and always-on VPN options protect data-in-motion. Centrally manage policy, track users, devices, security status, and access activity. You don't need to install anything to access web-based apps or virtual desktop products. Access to and protection of data for compliance with industry regulations.

Azure ExpressRoute allows you to create private connections between Azure datacenters, infrastructure on your premises, or in a colocation environment. ExpressRoute connections are not available over the internet. They offer greater reliability, faster speeds and lower latency than traditional internet connections. ExpressRoute connections can be used to transfer data between Azure and on-premises systems in some cases. This can provide significant cost savings. ExpressRoute can be used to connect to and increase storage capacity and compute in your existing datacenters. Azure is a natural extension of your datacenters and offers high throughput and quick latencies. You can enjoy the scale and economics offered by the public cloud without having the network performance to match.

Aruba ESP (Edge Services Platform), a next-generation cloud-native architecture, enables you to accelerate your digital business transformation through automated network management and Edge-to-cloud cybersecurity. It also provides predictive AI-powered insights that can be accessed with up to 95% accuracy. Only ESP delivers faster everything, faster remediation, speedy security protection, scaling users and locations, and operational AIOps all on a single cloud-native architecture. Secure new devices with dynamic segmentation and policy enforcement rules Cloud-managed orchestration over wired, wireless, or WAN. You have the ultimate flexibility to use it in the cloud, on-premises or as a service. A cloud-native, uniform console that manages Wi-Fi, wired and WAN infrastructures gives you visibility and control over all domains. Aruba's Unified Infrastructure streamlines and improves IT operations on campus, branch, remote, and data center levels. All managed and orchestrated in the cloud, or on-prem, it also includes IoT networks.

The cloud-delivered ColorTokens Xtended ZeroTrust Platform protects the inside with unified visibility, microsegmentation and zero-trust network access. It also protects endpoints, workloads, and endpoints with endpoint protection. Visibility across multiclouds and on-premise. Protection of cloud workloads via micro-segment Stop ransomware taking control of your endpoints. You can see all communications between processes, files and users. With built-in vulnerability and threat assessment, you can identify security gaps. Simpler and quicker time-to-compliance for HIPAA, PCI and GDPR. You can easily create ZeroTrust Zones™ and dramatically reduce the attack surface. Dynamic policies that protect cloud workloads. Without the need for cumbersome firewall rules or VLANs/ACLs, you can block lateral threats. By allowing only whitelisted processes, you can lock down any endpoint. Stop communication to C&C servers and block zero-day exploits.

Symantec's Integrated Cyber Defense Platform (ICD) provides endpoint security, identity security, and network security across both on-premises as well as cloud infrastructures. This platform is the best in the business for providing the most comprehensive and effective asset protection. Symantec is the only company to unify security and coordinate it. Functions that work across cloud and on-premises systems. Symantec allows enterprises to embrace the cloud in a way that makes sense for them without having to sacrifice their past investments or rely on critical infrastructure. Symantec is not your only vendor, we know that. We created the Integrated Cyber Defense Exchange (ICDx) to make it easy to integrate third party products and share intelligence across our platform. Symantec is the largest cyber defense vendor and can build solutions to support all infrastructures.

Symantec Secure Access Cloud, a SaaS solution, allows for more secure and granular access to any corporate resource that is hosted on-premises or in cloud. It works without the use of agents or appliances to provide point-to-point connectivity, eliminating network-level threats. Secure Access Cloud provides point to point connectivity at the application layer, hiding all resources from end-user devices as well as the internet. The network-level attack surface has been completely eliminated, leaving no room to lateral movement or network-based threats. Its easy-to-manage, well-defined, and simple-to-set access and activity policies prevent unauthorized use of corporate resources. They also allow for continuous, contextual (user device and resource-based context), authorization to enterprise applications that allows secured access for employees, partners, and BYOD.