SASE Providers Compared: Zscaler, Palo Alto, Netskope and Cato
Trusted Advisor for Sourcing IT & Telecommunications
Why Your SASE Platform Choice Determines Your Security and Network Strategy
Four platforms dominate the market, the right choice depends on your architecture
SASE determines how your sites, users and cloud services are securely connected. Anyone who picks a platform without a neutral view of their own IT security commits to an architecture model for years. The four market leaders pursue very different approaches.
The key points:
- In the Gartner Magic Quadrant for SASE Platforms 2025, Palo Alto Networks, Netskope, Cato Networks and Fortinet are named Leaders, while Zscaler and Cloudflare are Visionaries.
- The central decision is single-vendor SASE versus SSE plus a separate SD-WAN solution. Both paths have clear strengths and limits.
- Zscaler and Netskope come from a security and proxy background, Palo Alto and Cato from a networking background with native SD-WAN.
- There is no single best provider. There is only the best one for your footprint, your existing systems and your security model.
The solution:
Align the SASE selection with your own architecture rather than with the loudest marketing. Compare vendor-neutrally, prioritize requirements, then decide.
What this article covers:
What sets SASE apart from SSE, how Zscaler, Palo Alto, Netskope and Cato position themselves, which architecture suits which organization, and how SAVECALL supports the selection on a vendor-neutral basis.
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What is SASE and how does it differ from SSE?
SASE (Secure Access Service Edge) bundles network and security functions such as SD-WAN, ZTNA, SWG, CASB and FWaaS into a cloud-based platform. Single-vendor SASE delivers every component from one source. SSE providers (Security Service Edge) cover only the security part and are combined with a separate SD-WAN solution. So the difference is not in the security itself, but in whether the network is part of the same platform.
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The Leading SASE Providers at a Glance
In 2025 Gartner reorganized the market and merged the previously separate quadrants for single-vendor SASE and SSE into one Magic Quadrant for SASE Platforms. Four providers shape the top.
Palo Alto Networks (Prisma SASE) is the only provider named a Leader in all three relevant Gartner quadrants. Prisma Access combines SSE and SD-WAN on one platform and is seen as technically very broad, but also as one of the pricier offerings.
Netskope has been a Leader for years and comes from the data security and CASB space. The platform scores on deep inline inspection and data protection, with SD-WAN added later.
Cato Networks was built as a cloud-native network and is seen as a strong candidate for the midmarket and as an MPLS replacement. Its own global backbone is a central selling point.
Zscaler is the pioneer of the proxy and SSE approach with very large PoP coverage and debuted in 2025 as a Visionary in the new SASE quadrant. SD-WAN is not its historical core competency.
Single-Vendor SASE or SSE plus SD-WAN: Two Architectural Approaches
The architecture question comes before the vendor question
Single-vendor SASE means network and security come from one vendor on one platform. SSE plus SD-WAN deliberately splits these two layers across two specialized providers.
Single-vendor SASE plays to its strengths when it comes to:
- unified management across network and security
- consistent policy enforcement without integration gaps
- a single point of contact for support and SLA
- greenfield scenarios without deep ties to existing systems
SSE plus SD-WAN pays off when a strong SD-WAN solution is already in place or when maximum freedom of choice per layer is wanted.
Comparison Matrix: ZTNA, SD-WAN, PoP Coverage and Pricing Model
The following matrix summarizes the structural differences. It does not replace an individual assessment, but shows which approach each provider typically follows.
| Criterion | Zscaler | Palo Alto (Prisma) | Netskope | Cato Networks |
|---|---|---|---|---|
| Core approach | SSE / Proxy | Single-vendor SASE | SSE / Data Security | Single-vendor SASE |
| Native SD-WAN | added on | yes (Prisma SD-WAN) | added on | yes, cloud-native |
| ZTNA depth | very high | very high | high | high |
| PoP coverage | very large | large | large | own backbone |
| Strength for midmarket | medium | medium | medium | high |
| Price level | medium to high | tends to be high | medium | medium |
Providers rarely publish concrete prices. They depend on the number of users, modules, sites and contract term. This is exactly where a neutral comparison pays off, backed by a sound Zero Trust strategy as the foundation.
Which SASE Provider Fits Which Organization?
1
Large enterprise with a complex security landscape
If you need maximum feature depth across network and security, Palo Alto Prisma SASE or Zscaler offer the broadest coverage. Both assume deep ZTNA concepts and granular policies, but they also require a corresponding level of operational maturity.
2
Midmarket with distributed sites
For midmarket companies that want to replace MPLS and consolidate network plus security, Cato Networks is seen as especially pragmatic. The cloud-native backbone and a simpler operating model lower the barrier to entry compared with the large platform stacks.
3
Organization with high data protection requirements
Where data classification, CASB and inline inspection take center stage, such as in regulated industries, Netskope plays to its data security roots. Here SD-WAN can be added selectively, rather than bought as a mandatory component.
4
Protecting an existing SD-WAN landscape
If a capable SD-WAN is already in place, an SSE provider such as Zscaler or Netskope often makes more sense than a full platform switch. This preserves the network investment while modernizing security.
Adoption and Migration: from VPN to SASE
In many cases SASE replaces the classic VPN. Instead of letting every user into the entire corporate network, ZTNA grants access only to the single application that is needed. Migration rarely happens as a big bang, but in phases: first remote access, then site connectivity, then full policy consolidation. Depending on size, a few weeks to several months is realistic. The effort lies less in the technology than in the clean definition of roles, applications and policies.
How SAVECALL orchestrates the SASE selection
SAVECALL is not a SASE vendor, but your independent sourcing and advisory partner for network and security.
On a vendor-neutral basis, SAVECALL compares the leading platforms against your real requirements rather than against data sheets. The scope of services includes:
- SASE selection and architecture consulting vendor-neutral comparison of single-vendor and SSE approaches
- Zero Trust design as the basis for ZTNA-based access instead of open VPN tunnels
- SD-WAN integration aligning the network layer with the chosen SASE or SSE platform
- XDR integration connecting SASE telemetry with cross-domain threat detection
- Procurement pool bundled terms and contract negotiation across multiple providers
Conclusion: The Right SASE Choice Is an Architecture Decision
Palo Alto, Netskope, Cato and Zscaler are all strong platforms. The decisive question is not “Who is the best?” but “Which architecture fits our footprint, our existing systems and our security model?”
The choice between single-vendor SASE and SSE plus SD-WAN matters more than the brand. It defines the operating model, the cost structure and future flexibility.
Companies planning their SASE strategy should first clarify requirements and architecture before committing to a provider.
How SAVECALL supports you
SAVECALL helps you prioritize requirements, compare the leading SASE platforms on a vendor-neutral basis and plan the rollout, from the architecture decision to contract negotiation, cost-optimized and with clear accountability.
Written by
Frank Frommknecht
Key Account Consultant, SAVECALL
Has been guiding companies for over 20 years in selecting and optimizing their connectivity solutions. His focus: making complex telecommunications understandable from the customer’s perspective and strategically finding the right solution.
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SASE and SSE differ in whether the network is part of the platform. SASE (Secure Access Service Edge) combines network and security functions, including SD-WAN, in a cloud-based solution. SSE (Security Service Edge) covers only the security part with ZTNA, SWG and CASB, without SD-WAN. Anyone who chooses SSE combines it with a separate SD-WAN solution. SASE is therefore the broader approach, SSE the specialized security core. Which path fits depends on the existing network landscape.
For the midmarket, Cato Networks is often seen as the most pragmatic choice. The platform was built cloud-native, brings its own global backbone and is especially suitable as an MPLS replacement for distributed sites. Its operating model is simpler than the large platform stacks from Palo Alto or Zscaler. However, the best provider cannot be named in general terms. What matters is the site structure, existing systems, security requirements and budget. A vendor-neutral comparison based on the concrete requirements leads to the right choice more reliably than any blanket recommendation.
Whether you need a separate SD-WAN solution depends on the chosen approach. With single-vendor SASE such as Palo Alto Prisma or Cato, SD-WAN is already included in the platform. With an SSE provider such as Zscaler or Netskope, you cover only the security and combine it with a standalone SD-WAN solution. Anyone who already runs a capable SD-WAN is often better off with the SSE route and protects the existing investment. For a fresh build, there is a strong case for the integrated single-vendor variant.
The cost of a SASE platform cannot be quantified in general terms, since providers rarely publish list prices. The price depends on the number of users, the modules booked, the number of sites and the contract term. According to Gartner, Palo Alto tends to be more expensive, while Cato and Netskope often sit in the middle range. Licensing costs are only one part. On top come rollout, operation and the possible replacement of legacy systems. A neutral comparison with bundled contract negotiation lowers the total cost more noticeably than looking at the pure license price.
Yes, in most cases SASE replaces the classic VPN. Instead of letting users into the entire corporate network, the ZTNA principle grants access only to the single application that is needed. This significantly reduces the attack surface and makes access verifiable based on context. The switch usually happens step by step, starting with remote access as the first use case. A direct one-to-one swap is rarely sensible. Instead, roles, applications and policies are cleanly redefined, which is what creates the real added value over the old VPN.
A SASE rollout takes anywhere from a few weeks to several months, depending on company size. It rarely runs as a big bang, but in phases: first remote access, then site connectivity, then full policy consolidation. The biggest effort lies not in the technology, but in the clean definition of roles, applications and access rules. Good preparation shortens the rollout considerably. Anyone who clarifies requirements and architecture up front avoids expensive rework and can steer the migration in a controlled way across defined milestones.
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