We believe every website should adapt to its visitors.
Not just the websites of companies with data science teams, enterprise budgets, and six-month implementation timelines. Every website. Including yours. We built Mister Chameleon to make that possible - privacy-first, CMS-driven, and usable by a marketing team without a single line of custom code.
The platform in numbers
Personalised sessions delivered
Customer sites running personalisation
Countries where customers are based
Total pipeline latency
Built by people who felt the problem first.
We spent years building and marketing B2B SaaS products. Every time we tried to personalise our websites, it meant a developer sprint, a third-party cookie setup that felt legally precarious, and a six-month wait before we could measure anything. The tools that existed were either too complex, too expensive, or too dependent on data we couldn't legally use in Europe. We convinced ourselves the hard part was the logic - the rules engine, the signal collection, the variant matching. It wasn't. The hard part was making all of that accessible to the marketing team without requiring a developer for every change. Mister Chameleon is the platform we wished had existed. Privacy-first by architecture, not by checkbox. Operable by marketing, not owned by engineering. And fast enough to make a real difference to visitors who aren't going to wait.
What we believe
Privacy is not a compromise
Every architectural decision starts with: can we do this without cookies or third-party data? The answer is almost always yes. GDPR compliance is built into the design, not bolted on at the end.
Marketing teams should own personalisation
If activating a variant requires a developer sprint, the tool has failed. Every feature in Mister Chameleon is designed to be created, configured, and adjusted by a marketing team - independently.
Transparency builds trust
We publish our pricing, our uptime, our data processing details, and our roadmap. We don't have dark patterns, misleading trials, or hidden usage caps. What you see is what you pay for.
Small teams deserve serious tools
The conversion advantages of personalisation should not be limited to companies with data science budgets. Our Starter plan is €99/month and includes the full decision engine - not a stripped-down version of it.
Your data stays with you
Visitor behavioural data is stored in your own Supabase database, in your chosen region. We are a data processor, not a data hoarder. You can export or delete everything at any time.
The best personalisation is invisible
Visitors shouldn't feel targeted. They should simply feel like the website understands them. Great adaptive personalisation is the implementation nobody notices - because it just feels right.
A decision engine that runs at the edge.
Most personalisation tools work by injecting content after the page loads - which causes layout flicker, slows the perceived experience, and is trivially easy for visitors to notice. We took a different approach. The Mister Chameleon decision engine runs at the edge, before a single byte of HTML is sent to the visitor. Signal collection, company enrichment, intent scoring, and variant selection all happen in under 50 milliseconds - before the page renders. The visitor sees the personalised version on the first load, with no flicker and no delay. That architectural choice changes everything. It means personalisation is invisible. It means it doesn't hurt performance. And it means the engine can use a much richer set of signals than a client-side script ever could.
200+ sites. 12 million sessions. Still growing.
Two years after writing the first line of code, Mister Chameleon runs personalisation for over 200 websites across 18 countries. We have delivered more than 12 million personalised sessions. We are profitable, independent, and have not taken outside funding. Our customers include B2B SaaS teams using intent scoring to prioritise high-fit visitors, recruitment platforms personalising for employers and candidates in the same session, and digital agencies running white-label personalisation services for their clients. We are a small team and we intend to stay that way for as long as it makes us better. Every new person we hire raises the bar - they don't lower it.
What our customers say about us
Mister Chameleon gave us the conversion lift we were chasing for two years - with a fraction of the effort. Setup took an afternoon. Results showed up in the first week.
Sanne T.
Head of Growth · GrowlyticsWe were sceptical about personalisation because of GDPR. Mister Chameleon is the first tool we have found that actually handles this properly - privacy-first, not privacy-washed. Our legal team signed off without a single back-and-forth.
Lars K.
CTO · JobBridgeRunning personalisation for 12 clients from one white-label dashboard has changed our service model completely. It is now a core revenue stream for the agency - and the margin is excellent.
Mila D.
Founder · Frontline Agency
Privacy-first is an architecture decision, not a marketing claim.
We made a deliberate choice early on: build the entire platform without relying on third-party cookies, third-party data brokers, or data that requires explicit consent to collect. That constraint made certain things harder to build. It also made the product genuinely better. IP-to-company enrichment runs server-side and returns only organisational metadata - no personal data is involved. Behavioural tracking is first-party, stored in your database, under your control. The decision engine runs at the edge using only the signals available in the request context and your own stored data. We are a data processor under GDPR. Your visitors' data is yours. We cannot access it, sell it, or use it for any purpose outside serving your personalisation. This is written into our DPA and it is auditable.
Based in Amsterdam. Working across Europe.
Our office is on the Keizersgracht in Amsterdam. When the team is in town we use it for planning sessions, onboarding, and the occasional long Friday. Most days you will find us on Slack, in a Notion doc, or in a 30-minute video call that ends on time. The team is spread across the Netherlands, Belgium, Germany, and Portugal. We meet in Amsterdam three or four times a year for the things that genuinely need a whiteboard.
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