Hollsteen

Compare · Cybersecurity

Cloudflare vs Zscaler

Cloudflare vs Zscaler: which one is bigger, grows faster and keeps more of each dollar of revenue?

Zscaler earns 1.5× Cloudflare’s revenue

CloudflareZscalerRevenue growth (1 year)29.8%25.4%Revenue growth (3-year CAGR)30.5%27.5%Gross margin74.5%76.8%Operating margin−9.6%−4.0%Net margin−4.7%−1.9%FCF margin13.3%25.4%R&D as % of revenue23.6%26.9%Stock-based compensation as % of revenue20.8%24.5%
Side by side: all values with filing links
MetricCloudflare FY2025Zscaler FY2026
Revenue$2.2B10-K · Feb 26, 2026$3.4B10-K · Sep 3, 2026
Revenue growth (1 year)29.8% derived10-K · Feb 26, 202625.4% derived10-K · Sep 3, 2026
Revenue growth (3-year CAGR)30.5% derived10-K · Feb 26, 202627.5% derived10-K · Sep 3, 2026
Gross margin74.5% derived10-K · Feb 26, 202676.8% derived10-K · Sep 3, 2026
Operating margin−9.6% derived10-K · Feb 26, 2026−4.0% derived10-K · Sep 3, 2026
Net margin−4.7% derived10-K · Feb 26, 2026−1.9% derived10-K · Sep 3, 2026
Free cash flow$287M derived10-K · Feb 26, 2026$852M derived10-K · Sep 3, 2026
FCF margin13.3% derived10-K · Feb 26, 202625.4% derived10-K · Sep 3, 2026
R&D as % of revenue23.6% derived10-K · Feb 26, 202626.9% derived10-K · Sep 3, 2026
Stock-based compensation as % of revenue20.8% derived10-K · Feb 26, 202624.5% derived10-K · Sep 3, 2026

Definitions: Revenue = Total revenue; Revenue growth (1 year) = Revenue FYt ÷ revenue FYt−1 − 1; Revenue growth (3-year CAGR) = (Revenue FYt ÷ revenue FYt−3)^(1/3) − 1; Gross margin = Gross profit ÷ revenue; Operating margin = Operating income ÷ revenue; Net margin = Net income ÷ revenue; Free cash flow = Operating cash flow − capital expenditures (one formula for all companies); FCF margin = Free cash flow ÷ revenue; R&D as % of revenue = Research and development expense ÷ revenue; Stock-based compensation as % of revenue = Stock-based compensation ÷ revenue.

More on each company

Cloudflare

Zscaler

More cybersecurity comparisons: CrowdStrike vs Fortinet · CrowdStrike vs Cloudflare · CrowdStrike vs Okta · CrowdStrike vs Palo Alto Networks · CrowdStrike vs Zscaler · Fortinet vs Cloudflare · Fortinet vs Okta · Fortinet vs Palo Alto Networks