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Zscaler

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Zscalar is a cloud security platform that provides protection against cyber attacks, data breaches and data losses.

Perimeter Security And Firewalls
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Market Share of Zscaler

Current Customer(s)

3211

Market Share (Est.)

5.86%

Ranking

#5

Top Competitors and Alternatives of Zscaler

The top three of Zscaler’s competitors in the Perimeter Security And Firewalls category are SiteLock with 21.63%, Cisco ASA with 17.24%, Fortinet FortiGate with 13.39% market share.

TechnologyDomainsMarket Share (Est.)Versus page
SiteLock1185721.63%Zscaler vs SiteLock
Cisco ASA945017.24%Zscaler vs Cisco ASA
Fortinet FortiGate734413.39%Zscaler vs Fortinet FortiGate
Palo Alto Next-Generation Firewall36946.74%Zscaler vs Palo Alto Next-Generation Firewall
Fortinet FortiGate Secure Web Gateway30195.51%Zscaler vs Fortinet FortiGate Secure Web Gateway
pfSense23104.21%Zscaler vs pfSense
AWS WAF20683.77%Zscaler vs AWS WAF
Palo Alto PAN-OS20283.70%Zscaler vs Palo Alto PAN-OS
WatchGuard Firewall16703.05%Zscaler vs WatchGuard Firewall
Cyberoam14372.62%Zscaler vs Cyberoam
Palo Alto Panorama7581.38%Zscaler vs Palo Alto Panorama
Sophos XG Firewall7191.31%Zscaler vs Sophos XG Firewall
Huawei Firewall5200.95%Zscaler vs Huawei Firewall
FireMon4300.78%Zscaler vs FireMon
FortiGate NGFW4220.77%Zscaler vs FortiGate NGFW
Barracuda Spam Firewall4200.77%Zscaler vs Barracuda Spam Firewall
Incapsula4040.74%Zscaler vs Incapsula
SonicWall Next Generation Firewall2700.49%Zscaler vs SonicWall Next Generation Firewall
Fortinet FortiClient2420.44%Zscaler vs Fortinet FortiClient
iboss1860.34%Zscaler vs iboss
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Popular Comparisons

Top Competitors and Alternatives of Zscaler

The top three of Zscaler’s competitors in the Perimeter Security And Firewalls category are SiteLock with 21.63%, Cisco ASA with 17.24%, Fortinet FortiGate with 13.39% market share.

Zscaler vs SiteLock

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Zscaler vs Cisco ASA

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Zscaler vs Fortinet FortiGate

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Zscaler vs Palo Alto Next-Generation Firewall

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Zscaler vs Fortinet FortiGate Secure Web Gateway

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Zscaler vs pfSense

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Zscaler vs AWS WAF

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Zscaler vs Palo Alto PAN-OS

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Customers of Zscaler

Around the world in 2025, over 3211 companies have started using Zscaler as Perimeter Security And Firewalls tool.

CustomersEmployee RangeCityRegionCountrySocial Links
HDFC Bank Ltd10,000+MumbaiMaharashtraIndia
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Gale Healthcare10,000+TampaFloridaUnited States
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GE Vernova10,000+NewtonMassachusettsUnited States
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Unum10,000+ChattanoogaTennesseeUnited States
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BNP PARIBAS10,000+MilanLombardyItaly
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CEMEX10,000+San Pedro Garza GarciaNuevo LeonMexico
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CEMEX10,000+MonterreyNuevo LeonMexico
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City Of Seattle10,000+SeattleWashingtonUnited States
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Baker McKenzie10,000+ChicagoIllinoisUnited States
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Cemex INC10,000+San FranciscoCaliforniaUnited States
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Zscaler Customers by Products and Services

The top three products and services offering customers that use Zscaler for Perimeter Security And Firewalls are Cybersecurity (90), Cloud Services (84), Managed Services (78).

Customers

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Zscaler Customers by Employee Size

The majority of Zscaler's customers for the perimeter-security-and-firewalls category fall in the company size of 10,000+ employees (670 companies), 0 - 9 employees (572 companies), 100 - 249 employees (416 companies).

Employee Size

Zscaler Customers by Geography

The top three geographies of Zscaler for perimeter-security-and-firewalls are the United States with 1503(57.85%), United Kingdom with 297(11.43%), France with 152(5.85%) customers respectively.

Customers

Employees of Zscaler

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Also see other Products/Services by Zscaler in:

Data Security And DLP
Mobile App Security
Network Security
Perimeter Security And Firewalls

FAQ

Find answers to the most often asked questions by users.

Who are the top Zscaler competitors?

Zscaler’s Top competitors in the perimeter-security-and-firewalls category are SiteLock, Cisco ASA, Fortinet FortiGate. You can view a full list of Zscaler competitors here. 6sense uses advanced data mining and AI algorithms to track customers and competitors of Zscaler and 40,000 other technologies on the internet. You can also compare Zscaler and its feature with top competitors here : Zscaler vs SiteLock Zscaler vs Cisco ASA Zscaler vs Fortinet FortiGate.

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What is Zscaler customer distribution based on company size?

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What is Zscaler market share in the perimeter-security-and-firewalls?

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What are the top countries that use Zscaler?

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What are the top industries that use Zscaler?

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