Janis Rozenblats
Entrepreneur, founder, and product leader. I build companies, frameworks, and products — then write about what actually works when scaling teams.
Background
I've been building and scaling companies for 20 years across 8 countries. At 19, I started my first web agency in Denmark. Then I founded Mailigen — an email marketing platform I grew from 4 people in a 12sqm office to a team of 40 and a few million in annual revenue.
Mailigen was acquired by Pipedrive in 2020. I spent 4 years there as VP of Product through a Vista Private Equity acquisition — learning what happens when a startup operating system meets institutional scale.
Then I joined Aerones — a wind turbine maintenance robotics company growing past 400 people. I led product and services, drove AI transformation, and built frameworks that held up under real operational pressure. Product leadership changes when the thing you ship climbs a wind turbine — every bug has a physical cost.
Today I operate under Principal House — my venture umbrella. I build products, advise teams, and take on the right leadership work when it fits. What I write here comes from all of it.
Why This Site
Scaling from 10 to 100 people is where most founders break — and scaling past that breaks them again differently. Not because they lack talent or vision, but because the operating system that got them to 10 doesn't work at 40.
I write about what I've learned — the hard way — about team health, leadership operating systems, and reading the signals that tell you what your team won't say out loud.
No theory. No frameworks-for-frameworks-sake. Just what actually worked when the stakes were real.
Connect
LinkedIn — I'm most active here.