web-analytics
(5)
Ahrefs
Ahrefs built one of the web’s busiest crawlers to answer a marketer’s oldest question: why does that page outrank mine? Now the bootstrapped company is teaching the same data engine to map a stranger terrain - what brands appear when people ask AI for an answer.
Similarweb
Similarweb built a business by measuring what companies cannot see in their own analytics: everyone else. Now it is turning that outside-in view of the internet into fuel for marketers, investors, retailers and AI agents.
Contentsquare
The Paris company that watches a billion clicks a day so brands can finally see what their customers were trying to do - and where the website got in the way.
Siteimprove
Siteimprove is a Danish-founded SaaS company that helps organizations build accessible, high-performing, and compliant digital experiences. Its platform unifies digital accessibility, web analytics, SEO/AEO, content quality, and governance into a single suite, increasingly powered by the Siteimprove.ai agentic content intelligence engine. Used by thousands of enterprises, governments, universities, and healthcare and financial institutions worldwide, Siteimprove turns sprawling, hard-to-audit websites into measurable, standards-compliant assets.
PostHog
PostHog is an all-in-one, open-source developer platform that bundles product analytics, web analytics, session replay, feature flags, A/B testing, experiments, surveys, error tracking, a customer data platform, and a data warehouse into a single stack engineers can self-host or run in the cloud. Founded in 2020 by James Hawkins and Tim Glaser through Y Combinator, it lets product engineers track usage, ship features, and keep customer data in one place rather than stitching together a dozen SaaS tools. The company reached unicorn status in 2025 with a $75M Series E at a $1.4B valuation.