About

Don Mateo

Founder, Underboss Media. Europe.

I've been building companies most of my life. Some worked. Some of the early ones didn't. Every one of them taught me the same thing - the product was never what killed it.

What kills most startups is that nobody finds them. Founder builds something good, raises money, hires an agency, burns through a quarter and six figures, and ends up with a content calendar and a Slack channel where someone sends weekly reports nobody opens.

I figured out organic growth by building companies that needed it with my background in Sales Marketing and Psyhology. Just products that had to grow and a refusal to depend on paid channels to do it.

Mailly.io, Dxstinity, Notorious Festival - those are where we built the system. Our own companies, our own money. Everything we deploy on clients was tested there first.

I started Underboss because I kept running into founders who had better products than I did but couldn't crack the growth side. That bothered me. Still does.

How it works is simple. My team sits inside your company, builds the growth system, and everything gets tied back to pipeline. If the numbers don't move, we haven't done our job. There's no version of this where we send you a report and call it progress.

I built the team the same way I built the companies. People who've done the work, not people who've read about it. Small on purpose. Senior by default.

If that's what you've been looking for, reach out. The conversation is free and stays between us.

- Don Mateo

Don Mateo, Founder of Underboss Media

Our best proof is the clients we'll never name.