Built by a founder who codes, thinks in data, and obsesses over results
Fento isn't a traditional agency. It's what happens when a technical founder with AI expertise decides that most marketing agencies are doing it wrong.
Johannes Gensheimer
Founder & Growth Engineer
I started my career building AI systems at scale — serving millions of users as a technical lead in digital marketing for one of Germany's largest automakers. I've published research with Harvard, Caltech, and NASA JPL. I co-founded a VC-backed AI startup.
Through all of this, I kept seeing the same problem: companies spend fortunes on marketing agencies that deliver dashboards full of vanity metrics but zero actual new clients. Agencies that use 12 different SaaS tools, none of which talk to each other. Agencies that wait to be told what to do.
So I built Fento. I wrote the code for our platform myself. Every tool, every tracker, every analysis — built specifically to do one thing: generate inbound leads. Not impressions. Not clicks. Actual business inquiries from people who want to buy.
The result: my clients get the output of an entire growth team from one partner. Faster execution, better data, and someone who actually understands the technology behind AI search, SEO, and conversion.
Three things that make Fento different
Own technology
I built the tools myself. No SaaS subscriptions, no third-party dependencies. Our platform was designed for one purpose: winning you clients. This means faster insights, better data quality, and capabilities that off-the-shelf tools simply don't have.
Strategic partner
I don't wait for task lists. I think strategically, identify opportunities proactively, and take ownership of outcomes. When you work with me, you get a partner who's as invested in your growth as you are.
Results, not reports
I don't send you monthly PDFs with traffic charts. I send you qualified leads. Everything I do is measured against one metric: did it generate business? If it didn't, we change course immediately.
Background
VC-Backed Founder
Co-founded an AI startup backed by one of the world's largest early-stage VC firms. Built and scaled technology products from zero.
Technical Lead, Digital Marketing at Scale
Led AI-powered digital marketing projects reaching millions of users for a major German automaker.
Research & Science
International publications and collaborations with Harvard, Caltech, NASA JPL, Max Planck Institute, and TU Munich.
Engineer who codes
Built the entire Fento platform myself. I understand technology at a level most agency founders never will — and that translates directly into better results.