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VMware NSX vs Zscaler Internet Access comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

ROI

Sentiment score
6.8
VMware NSX enhances infrastructure efficiency, CAPEX savings, cybersecurity, and ROI, but initial costs and security effectiveness have mixed reviews.
Sentiment score
7.5
Zscaler Internet Access offers cost and complexity reduction, improved security, and quick ROI, especially for SMBs, despite regional challenges.
The managed service aspect of Zscaler Internet Access has allowed for reduced staffing costs, resulting in a saving of approximately 20-25% compared to prior expenses.
 

Customer Service

Sentiment score
6.6
VMware NSX customer service is praised for efficiency and expertise, but improvements in accessibility and responsiveness are desired.
Sentiment score
7.1
Zscaler Internet Access support is strong and responsive, though some users seek quicker resolutions and better online resources.
They were always helpful.
Our technicians have a good support experience from the company.
The technical support from VMware NSX deserves a rating of seven out of ten.
The technical support for Zscaler Internet Access is rated around seven out of ten due to some response time issues and the engagement model.
I find customer support to be quite adequate
 

Scalability Issues

Sentiment score
7.7
VMware NSX is praised for its scalability, robust performance, and efficient network integration, despite some complexity in scaling.
Sentiment score
7.9
Zscaler Internet Access is highly scalable, cloud-based, and supports large user volumes with positive feedback on integration and performance.
There is a high level of satisfaction with its ability to scale.
Zscaler Internet Access is scalable and has points of presence across the globe to ensure low latency and reliable connections.
I find Zscaler Internet Access to be highly scalable, which was one of the reasons for choosing it.
 

Stability Issues

Sentiment score
8.1
VMware NSX is highly stable, with strong performance, scalability, and frequent updates addressing most bugs and integration concerns.
Sentiment score
7.7
Zscaler Internet Access offers stable performance globally, though regions like China and South Africa occasionally face latency challenges.
For stability, I would rate VMware NSX as a nine out of ten.
Zscaler Internet Access is stable and capable of building resilient architectures.
Zscaler Internet Access is very stable, and I would rate its stability as nine out of ten.
 

Room For Improvement

VMware NSX faces challenges in costs, complexity, and user satisfaction, needing enhancements in automation, scalability, and security features.
Zscaler Internet Access needs better integration, user-friendly features, improved support, and competitive pricing to enhance user experience.
The pricing for the product is another area for improvement as I'm not satisfied nowadays.
The initial configuration and integration within our existing environment were not easy.
The licensing model is expensive and could be more flexible, especially after Broadcom bought VMware.
The response time and engagement model for technical support could be improved to handle complex outages more efficiently.
One feature I am missing is the ability to connect automatically to internal monitoring systems.
 

Setup Cost

VMware NSX is viewed as costly, with complex licensing and high initial costs, particularly impacting smaller organizations.
Zscaler Internet Access is seen as costly but premium compared to traditional solutions, offering unmatched services and global coverage.
The cost of VMware NSX is considered high.
VMware NSX is a little higher in price compared to the competition.
There is room for improvement in terms of pricing.
Zscaler Internet Access is recognized as an expensive solution.
Zscaler Internet Access is less expensive than competitors like Palo Alto, offering a premium service justified by security enhancements and cost-effective scalability.
 

Valuable Features

VMware NSX offers enhanced security, seamless management, and flexibility with automation, scalability, and integration for cloud and on-premises solutions.
Zscaler Internet Access delivers comprehensive cloud-native security with threat protection, ease of use, and centralized management for remote users.
Micro-segmentation enhances security and provides more secure data in your data center.
It's robust, stable, and easy to use.
The micro-segmentation feature is beneficial for adhering to strict security regulations from our security department.
The most valuable feature for me is the ability to see how my network and traffic looks with modules like analytics and insights.
Some of the most valuable features of Zscaler Internet Access include secure web gateways, URL filtering, data loss prevention, anti-malware defense, file extension blocking, and a comprehensive categorization system.
 

Categories and Ranking

VMware NSX
Average Rating
8.0
Reviews Sentiment
6.8
Number of Reviews
105
Ranking in other categories
Network Virtualization (2nd), Cloud and Data Center Security (2nd), Network Traffic Analysis (NTA) (8th), Network Detection and Response (NDR) (7th), Network Automation (5th), Microsegmentation Software (1st)
Zscaler Internet Access
Average Rating
8.2
Reviews Sentiment
7.0
Number of Reviews
53
Ranking in other categories
Secure Web Gateways (SWG) (2nd), Internet Security (2nd)
 

Mindshare comparison

While both are Enterprise Networking solutions, they serve different purposes. VMware NSX is designed for Network Virtualization and holds a mindshare of 44.9%, down 45.9% compared to last year.
Zscaler Internet Access, on the other hand, focuses on Secure Web Gateways (SWG), holds 14.8% mindshare, down 17.0% since last year.
Network Virtualization
Secure Web Gateways (SWG)
 

Featured Reviews

MagdyRaafat - PeerSpot reviewer
Enhanced security and streamlined management drive efficient connectivity
Open source is a standard solution where you take a gray box or white box and put the software from your end. You can do programming with Ansible and make the network work in the software-defined mode, providing automation and management capabilities. I am currently working with VMware. It integrates easily with everything and can work with any system. When discussing micro-segmentation, it enhances security, providing more secure data in your data center while allowing for extra layers of security outside your data center. If you have an ACI, there is communication between locations, keeping your data secure in your data center and throughout the path it takes, such as to SD-WAN or the cloud. I work with cloud solutions including AWS, Azure, GCP, and private cloud. My overall rating for VMware NSX is 8.5 out of 10.
AshwaniTyagi - PeerSpot reviewer
Offers good reliability and availability to users
Sometimes, cost is one component that customers complain about, especially if they compare it with some of its competitors. Zscaler's pricing seems to be a bit on the higher side. I think the pricing model is also something that the tool can probably look into to optimize or improve for the customer so that it can be a competitive tool commercially. The solution's technical support needs to be improved, especially by offering a better support structure for different geographical areas.
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Top Industries

By visitors reading reviews
Computer Software Company
15%
Financial Services Firm
13%
Manufacturing Company
9%
Government
9%
Computer Software Company
15%
Manufacturing Company
11%
Financial Services Firm
10%
Educational Organization
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What are the biggest differences between Cisco ACI and VMware NSX?
There are some very major differences between both the Products and to name a few. -Cisco ACI have physical network gear (9K Switches) where the Code runs in ACI Policy Mode & the UCS server wh...
What are the biggest differences between Cisco ACI and VMware NSX?
Once you know your way around the Cisco ecosystem, using Cisco ACI is not so difficult. It is a global product, so when you change one interface, changes are automatically reflected on every switch...
What do you like most about VMware NSX?
The product has valuable features for security and network extension.
Which is the better security solution - Cisco Umbrella or Zscaler?
Cisco Umbrella and Zscaler Internet Access are two broad-spectrum Internet security solutions that I have tried. Zscaler Internet Access is a good option for carrying out multiple security functi...
Which is better, Zscaler internet access or Netsckope CASB?
We researched Netskope but ultimately chose Zscaler. Netskope is a cloud access security broker that helps identify and manage cloud applications, protecting your sensitive data from exfiltration....
 

Also Known As

VMware Nicira, Lastline Defender
ZIA
 

Overview

 

Sample Customers

City of Avondale, Lumeta, Kroll Ontrack, Heartland Payment Systems, Baystate Heallth, Exostar, Tribune Media, iGATE, NTT Communications, Synergent, California Natural Resources Agency, Bloomington Public Schools, Columbia Sportswear, Join Experience S.A, Schuberg Philis
Ulster-Greene ARC, BanRegio, HDFC, Ralcorp Holdings Inc., British American Tobacco, Med America Billing Services Inc., Lanco Group, Aquafil, Telefonica, Swisscom, Brigade Group
Find out what your peers are saying about Cisco, VMware, Array Networks and others in Network Virtualization. Updated: June 2025.
861,524 professionals have used our research since 2012.