# Best Software-Defined Perimeter (SDP) Software for Small Business *By [Lauren Worth](https://research.g2.com/insights/author/lauren-worth)* Products classified in the overall Software-Defined Perimeter (SDP) category are similar in many regards and help companies of all sizes solve their business problems. However, small business features, pricing, setup, and installation differ from businesses of other sizes, which is why we match buyers to the right Small Business Software-Defined Perimeter (SDP) to fit their needs. Compare product ratings based on reviews from enterprise users or connect with one of G2's buying advisors to find the right solutions within the Small Business Software-Defined Perimeter (SDP) category. In addition to qualifying for inclusion in the Software-Defined Perimeter (SDP) Software category, to qualify for inclusion in the Small Business Software-Defined Perimeter (SDP) Software category, a product must have at least 10 reviews left by a reviewer from a small business. ## How Many Software-Defined Perimeter (SDP) Software Products Does G2 Track? **Total Products under this Category:** 49 ### Category Stats (May 2026) - **Average Rating**: 4.49/5 - **New Reviews This Quarter**: 13 - **Buyer Segments**: Mid-Market 56% │ Enterprise 28% │ Small-Business 17% - **Top Trending Product**: Check Point Infinity Platform (+0.088) *Last updated: May 22, 2026* ## How Does G2 Rank Software-Defined Perimeter (SDP) Software Products? **Why You Can Trust G2's Software Rankings:** - 30 Analysts and Data Experts - 1,700+ Authentic Reviews - 49+ Products - Unbiased Rankings G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category. --- **Sponsored** ### OpenVPN CloudConnexa CloudConnexa®, powered by OpenVPN, is the leader in delivering premium, enterprise-grade network security accessible to businesses of all sizes. Easy to set up and simple to deploy, CloudConnexa's cloud-native service provides scalable secure network and resource access no matter where employees work, or corporate resources are based. [Visit website](https://www.g2.com/external_clickthroughs/record?secure%5Bad_program%5D=ppc&secure%5Bad_slot%5D=category_product_list&secure%5Bcategory_id%5D=2339&secure%5Bdisplayable_resource_id%5D=2339&secure%5Bdisplayable_resource_type%5D=Category&secure%5Bmedium%5D=sponsored&secure%5Bplacement_reason%5D=page_category&secure%5Bplacement_resource_ids%5D%5B%5D=2339&secure%5Bprioritized%5D=false&secure%5Bproduct_id%5D=23475&secure%5Bresource_id%5D=2339&secure%5Bresource_type%5D=Category&secure%5Bsource_type%5D=category_page&secure%5Bsource_url%5D=https%3A%2F%2Fwww.g2.com%2Fcategories%2Fsoftware-defined-perimeter-sdp%2Fsmall-business&secure%5Btoken%5D=ef0f7d472b82c2aebd182f70409b539bd8b8d1e682c43ce703eda2afde34ef42&secure%5Burl%5D=https%3A%2F%2Fopenvpn.net%2Fcloud-vpn%2Fpricing%2F%3Futm_source%3Dg2%26utm_medium%3Dpaid&secure%5Burl_type%5D=free_trial) --- ## What Are the Top-Rated Software-Defined Perimeter (SDP) Software Products in 2026? ### 1. [GoodAccess](https://www.g2.com/products/goodaccess/reviews) 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. What does GoodAccess do? GoodAccess protects the customer’s infrastructure under one zero-trust umbrella, regardless of how complex, heterogeneous, or widespread it is. It is a good fit for companies supporting full-remote or hybrid modes of work using both company-issued and employees’ own devices. The low-code/no-code, cloud-based SASE platform allows medium-sized businesses to create and manage zero trust architecture easily. In today’s cybersecurity landscape, this is an essential part of any medium-sized organization’s security, and a highly effective enabler of regulatory compliance. The GoodAccess platform combines several latest technologies to tackle the most pressing cybersecurity challenges of today. ✅ Remote access and BYOD—Device security enforcement with device inventory and posture checks. ✅ Multi-factor authentication (MFA)---Unified MFA solution for all critical systems, including legacy applications. ✅ Identity-based access control (IAM/FwaaS)---Zero-Trust Architecture enabling control of all access by identity (SSO/SCIM). ✅ Network encryption and segmentation—Segmentation at maximum granularity radically reduces the attack surface. ✅ Full control and visibility—Security logs and reports from across the entire organization with SIEM integration. What makes GoodAccess unique? GoodAccess stands out by its usability-first design. It is an all-SaaS, zero-hardware platform that fits any infrastructure to deliver network-based Zero-Trust Architecture (SDP) without the need for an IT expert on staff. Our key uniquenesses include: ✅ Simplicity—Low-code/no-code/no-hardware platform for medium-sized organizations. ✅ Market-leading deployment time—GoodAccess takes hours to days to deploy. ✅ Infrastructure-agnostic—Deployable over any existing infrastructure. ✅ Easy management—No certified IT experts needed. ✅ Zero Trust on network layer—Allows for simple integration of legacy applications. ✅ Based in the EU—Ideal cybersecurity provider for NIS2 compliance. Interested in giving GoodAccess a shot? Book a Free Demo: https://calendar.goodaccess.com/meetings/eva-hisemova Start your Free Trial: https://app.goodaccess.com/free-trial/ **Average Rating:** 4.7/5.0 **Total Reviews:** 164 **How Do G2 Users Rate GoodAccess?** - **Ease of Use:** 9.5/10 (Category avg: 9.2/10) - **Quality of Support:** 9.3/10 (Category avg: 9.0/10) - **Has the product been a good partner in doing business?:** 9.4/10 (Category avg: 8.8/10) - **Network Segmentation:** 9.3/10 (Category avg: 9.1/10) **Who Is the Company Behind GoodAccess?** - **Seller:** [Goodaccess](https://www.g2.com/sellers/goodaccess) - **Company Website:** https://www.goodaccess.com/ - **Year Founded:** 2009 - **HQ Location:** Usti nad Labem, Czech Republic, Europe - **LinkedIn® Page:** https://www.linkedin.com/company/30700911/ (23 employees on LinkedIn®) **Who Uses This Product?** - **Who Uses This:** CTO, CEO - **Top Industries:** Information Technology and Services, Computer Software - **Company Size:** 76% Small-Business, 24% Mid-Market #### What Are GoodAccess's Pros and Cons? **Pros:** - Ease of Use (79 reviews) - VPN Services (47 reviews) - Reliability (46 reviews) - Customer Support (41 reviews) - Easy Setup (34 reviews) **Cons:** - Expensive (23 reviews) - Connection Issues (16 reviews) - Access Issues (8 reviews) - Limited Location Options (8 reviews) - Connectivity Issues (7 reviews) ### 2. [Check Point Infinity Platform](https://www.g2.com/products/check-point-infinity-platform/reviews) Check Point Infinity is the only fully consolidated cyber security architecture that provides unprecedented protection against Gen V mega-cyber attacks as well as future cyber threats across all networks, endpoint, cloud and mobile. The architecture is designed to resolve the complexities of growing connectivity and inefficient security. **Average Rating:** 4.6/5.0 **Total Reviews:** 109 **How Do G2 Users Rate Check Point Infinity Platform?** - **Ease of Use:** 9.1/10 (Category avg: 9.2/10) - **Quality of Support:** 8.8/10 (Category avg: 9.0/10) - **Has the product been a good partner in doing business?:** 8.8/10 (Category avg: 8.8/10) - **Network Segmentation:** 10.0/10 (Category avg: 9.1/10) **Who Is the Company Behind Check Point Infinity Platform?** - **Seller:** [Check Point Software Technologies](https://www.g2.com/sellers/check-point-software-technologies) - **Year Founded:** 1993 - **HQ Location:** Redwood City, CA - **Twitter:** @CheckPointSW (71,000 Twitter followers) - **LinkedIn® Page:** https://www.linkedin.com/company/check-point-software-technologies/ (8,356 employees on LinkedIn®) - **Ownership:** NASDAQ:CHKP **Who Uses This Product?** - **Top Industries:** Computer & Network Security, Information Technology and Services - **Company Size:** 44% Enterprise, 37% Mid-Market #### What Are Check Point Infinity Platform's Pros and Cons? **Pros:** - Centralized Management (12 reviews) - Security (11 reviews) - Easy Management (10 reviews) - Features (9 reviews) - Ease of Use (8 reviews) **Cons:** - Learning Curve (10 reviews) - Complexity (6 reviews) - Delays (4 reviews) - Difficult Configuration (4 reviews) - Expensive (4 reviews) ### 3. [Check Point SASE](https://www.g2.com/products/check-point-sase/reviews) The internet is the new corporate network, leading organizations to transition to their network security to Secure Access Service Edge (SASE). However, current solutions break the user experience with slow connections and complex management. Check Point SASE is a game-changing solution that delivers 10x faster internet security, SaaS Security, and full mesh Zero Trust Access and optimized SD-WAN performance—all with an emphasis on streamlined management. Combining innovative on-device and cloud-delivered network protections, Check Point SASE offers a local browsing experience with tighter security and privacy, and an identity-centric zero trust access policy that accommodates everyone: employees, BYOD and third parties. Its SD-WAN solution unifies industry-leading threat prevention with optimized connectivity, automated steering for over 10,000 applications and seamless link failover for uninterrupted web conferencing. Using Check Point SASE, business can build a secure corporate network over a private global backbone in less than an hour. The service is managed from a unified console and is backed by an award-winning global support team that has you covered 24/7. **Average Rating:** 4.5/5.0 **Total Reviews:** 214 **How Do G2 Users Rate Check Point SASE?** - **Ease of Use:** 9.0/10 (Category avg: 9.2/10) - **Quality of Support:** 8.9/10 (Category avg: 9.0/10) - **Has the product been a good partner in doing business?:** 8.8/10 (Category avg: 8.8/10) - **Network Segmentation:** 8.8/10 (Category avg: 9.1/10) **Who Is the Company Behind Check Point SASE?** - **Seller:** [Check Point Software Technologies](https://www.g2.com/sellers/check-point-software-technologies) - **Company Website:** https://www.checkpoint.com/ - **Year Founded:** 1993 - **HQ Location:** Redwood City, CA - **Twitter:** @CheckPointSW (71,000 Twitter followers) - **LinkedIn® Page:** https://www.linkedin.com/company/check-point-software-technologies/ (8,356 employees on LinkedIn®) **Who Uses This Product?** - **Top Industries:** Information Technology and Services, Computer & Network Security - **Company Size:** 47% Mid-Market, 35% Small-Business #### What Are Check Point SASE's Pros and Cons? **Pros:** - Security (46 reviews) - Ease of Use (39 reviews) - Secure Access (34 reviews) - Protection (26 reviews) - Reliability (25 reviews) **Cons:** - Complex Implementation (28 reviews) - Complex Configuration (24 reviews) - Complex Setup (22 reviews) - Expensive (17 reviews) - Learning Curve (17 reviews) ### 4. [OpenVPN CloudConnexa](https://www.g2.com/products/openvpn-cloudconnexa/reviews) CloudConnexa®, powered by OpenVPN, is the leader in delivering premium, enterprise-grade network security accessible to businesses of all sizes. Easy to set up and simple to deploy, CloudConnexa's cloud-native service provides scalable secure network and resource access no matter where employees work, or corporate resources are based. **Average Rating:** 4.6/5.0 **Total Reviews:** 123 **How Do G2 Users Rate OpenVPN CloudConnexa?** - **Ease of Use:** 9.1/10 (Category avg: 9.2/10) - **Quality of Support:** 8.9/10 (Category avg: 9.0/10) - **Has the product been a good partner in doing business?:** 9.2/10 (Category avg: 8.8/10) - **Network Segmentation:** 9.7/10 (Category avg: 9.1/10) **Who Is the Company Behind OpenVPN CloudConnexa?** - **Seller:** [OpenVPN](https://www.g2.com/sellers/openvpn) - **Company Website:** https://www.openvpn.net - **Year Founded:** 2002 - **HQ Location:** Pleasanton, CA - **Twitter:** @OpenVPN (20,214 Twitter followers) - **LinkedIn® Page:** https://www.linkedin.com/company/15353748/ (175 employees on LinkedIn®) **Who Uses This Product?** - **Who Uses This:** CTO - **Top Industries:** Computer Software, Information Technology and Services - **Company Size:** 47% Mid-Market, 46% Small-Business #### What Are OpenVPN CloudConnexa's Pros and Cons? **Pros:** - Customer Support (14 reviews) - Ease of Use (13 reviews) - Security (12 reviews) - Features (11 reviews) - Secure Access (11 reviews) **Cons:** - Expensive (8 reviews) - Connection Issues (6 reviews) - Complex Configuration (5 reviews) - Difficult Learning Curve (5 reviews) - Connectivity Issues (4 reviews) ## What Is Software-Defined Perimeter (SDP) Software? [Network Security Software](https://www.g2.com/categories/network-security) ## What Software Categories Are Similar to Software-Defined Perimeter (SDP) Software? - [Business VPN Software](https://www.g2.com/categories/business-vpn) - [Zero Trust Networking Software](https://www.g2.com/categories/zero-trust-networking) - [Cloud Access Security Broker (CASB) Software](https://www.g2.com/categories/cloud-access-security-broker-casb) - [Zero Trust Platforms](https://www.g2.com/categories/zero-trust-platforms) --- ## How Do You Choose the Right Software-Defined Perimeter (SDP) Software? ### What You Should Know About Software-Defined Perimeter (SDP) Software ### **What is Software-Defined Perimeter (SDP) Software?** A software-defined perimeter (SDP) software helps create a blanket of security around a company's assets by applying a security boundary at the network layer. SDP helps secure network perimeter, services, routers, applications, and systems in hybrid cloud, multi-cloud, and public cloud environments by applying virtual controls on software instead of hardware. SDP works on the least privilege principle. When a user tries to enter a company’s network, the user and device are authenticated, irrespective of their location. Once authenticated, they are not allowed access to the entire network but only to those routers, services, or SaaS applications they need and are approved to access. SDP provides granular application-level segmentation instead of more complex network segmentation. The cloud security alliance first introduced SDP. Cloud security alliance is a not-for-profit organization that promotes best practices for security in the cloud.  SDP architecture consists of a receiving host, an initiating host, and a controller. Initiating host communicates with the controller to provide information on devices looking to connect with the network. Using an identification system, the SDP controller validates device and user identity based on pre-configured rules. Once it approves the device and user, it passes the approval to the SDP gateway. Once approved, it opens the virtual door for authorized users. The accepting host connects the devices to approved applications. ### What does SDP stand for? SDP stands for software-defined perimeter, a security solution that creates a perimeter around a company's IT assets. ### What are the Common Features of Software-Defined Perimeter (SDP) Software? The following are some core features of the software-defined perimeter solutions: **Application-level access** : SDP allows access only to applications approved for a user and device, unlike virtual private network (VPN) software that provides remote access to the whole network once approved. So even if an intruder enters the system, their access is minimal, thus reducing the attack surface exposure and data breaches. **Granular access control:** Once validated, the software provides a separate secure connection to each user.  **Infrastructure agnostic** : Software-defined perimeter is agnostic of infrastructure since it is software defined and not hardware defined. So they can be deployed anywhere—on-premises, private, or public cloud environments. **Location agnostic** : Devices and remote users do not have to be in the physical perimeter to get a secure connection through SDP. This feature is extremely useful in the remote work scenario. ### What are the Benefits of Software-Defined Perimeter (SDP) Software? SDP provides a security blanket around the system infrastructure, shrouding it from unregulated external access. **Internet security:** Software-defined perimeter provides a security cover around the software perimeter. This helps eliminate security risks when external users or devices connect to the network. **Multi-cloud security:** Today, companies usually have multiple cloud environments from different vendors. SDP helps secure entry to all of them through one solution. **Zero trust network security access (ZTNA) across devices:** SDP provides zero trust network security access (ZTNA) for each device and user, irrespective of location.  **Restrict broad network access** : Unlike VPN, SDP restricts access to broader networks. This way, even if a segment is compromised, other parts of the network are safe.  **Support a wide variety of devices:** SDP supports a wide range of devices such as laptops, desktops, mobiles, and even Internet of Things (IoT) devices. This wide range provides good security coverage to the network. ### Who Uses Software-Defined Perimeter (SDP) Software? **Network administrators:** SDP helps network admins ensure malicious devices and unauthorized users do not enter the system. **IT teams:** SDP software helps IT administrators give a specific remote user access to third parties irrespective of their devices and locations. ### What are the Alternatives to Software-Defined Perimeter (SDP) Software? Alternative security solutions to SDP solutions include: [Virtual private network (VPN)](https://www.g2.com/categories/virtual-private-network-vpn): Virtual private networks or VPNs provide company employees with secure access to the network. They create a barrier to the network to prevent hackers, malware, and unauthorized users from entering the network perimeter. But SDP is more powerful as it provides privileged access to very specific SaaS applications, unlike VPN. [Zero trust networking software](https://www.g2.com/categories/zero-trust-networking): This software follows the zero trust security approach where a user, internal or external, is considered a threat until they are thoroughly verified. Zero trust network access (ZTNA) software provides privileged access control to the network connections.  #### Software Related to Software-Defined Perimeter (SDP) Software Related solutions that can be used together with SDP include: [Multi-factor authentication (MFA)](https://www.g2.com/categories/multi-factor-authentication-mfa): This software helps authenticate users in two or more ways to ensure that only authorized users and devices are logging on to the system. IT teams use push notifications, tokens, and one-time passwords ( OTPs) to authenticate users. [Firewall software](https://www.g2.com/categories/firewall-software) **:** This software helps create a barrier between the network and the internet to prevent hackers and unauthorized users from entering the corporate network. It validates access based on pre-configured security policies to decide which remote users should be let into the network. ### Challenges With Software-Defined Perimeter (SDP) Software Software solutions can come with their own set of challenges.  **Device compatibility:** Although vendors generally ensure maximum compatibility, the software might not be able to connect some of the devices to the network.  **Network and app reconfiguration:** When SDP is deployed, all network connections and application settings must be reconfigured, causing disruptions during deployment. **SDP Controller uptime:** One of the biggest challenges of SDP is that if the controller is down, users and devices cannot be connected to the network. ### How to Buy Software-Defined Perimeter (SDP) Software? #### Requirements Gathering (RFI/RFP) For Software-Defined Perimeter (SDP) Software One important thing to consider while buying an SDP solution is the software’s ability to integrate with all devices. Buyers should be careful about the availability of the SDP controller and time for implementation, as implementation requires reconfiguration.  It is advantageous if the vendor offers a free trial so that the buyer can evaluate the product before making a long-term investment. #### Compare Software-Defined Perimeter Software (SDP) Products **Create a long list** Buyers need to identify features that they need from their software-defined perimeter tools and start with a large pool of SDP vendors. Buyers must then evaluate the pros and cons of each product. **Create a short list** Short lists help cross-reference the results of initial SDP vendor evaluations with other buyer reviews on third-party review sites such as g2.com, which will help the buyer narrow in on a three to five-product list. From there, buyers can compare pricing and features to determine the best fit. **Conduct demos** Companies should demo all of the SDP products on their short list. During demos, buyers should ask specific questions about the functionalities they care about most; for example, one might ask for a demo of how the tool would behave when it detects a policy change. #### Selection of Software-Defined Perimeter (SDP) Software **Choose a selection team** Regardless of a company’s size, involving the most relevant personnel is crucial during the software selection process. The team should include relevant company stakeholders who can use the security solution, scrutinize it, and check whether it will meet the organization’s requirements. The individuals responsible for the day-to-day use of SDP software must be a part of the selection team. IT admins, security teams, and decision makers could be the primary personas included in the group. **Negotiation** To get the best price, buyers looking to trim costs should try to negotiate the specific functions that matter to them. More often than not, the price and specifications mentioned on the vendor’s pricing page can be negotiated. Negotiation on SDP software implementation, support, and other professional services are also crucial. Buyers should ensure they receive adequate support to get the product up and running. The cost of SDP software typically depends on the number of users per month. Some even offer free trial periods to start with.  **Final decision** Before deciding to purchase the software, testing it for a short period is advisable. The day-to-day users of the software are the best individuals to perform this test. They can use and analyze the software product's capabilities and offer valuable feedback. In most cases, software service providers offer a short-term product trial. If the selection team is satisfied with what the software offers, buyers can proceed with the purchase or contracting process.