Custom
software
for
everyday work
We start with how work really happens, then build software for what slows people down. AI agents get a seat only where they help.
What we do
Your work first.
Then the software.
A lot of working time goes into chasing information and keeping documents in step. That is our starting point, and we are still testing it. Tre Zero Quattro builds custom software for those parts of everyday work, made to fit the way your company already runs.

Map the work first
We look at how a company really runs before deciding what to build.
Plain rules, then AI
Rules that can be written down stay rules. AI handles the reading and drafting.
People keep the last word
In our demo, nothing goes out until a person approves it.
Demo · fictional data
Watch an agent work
An email asks for 20 stewards. The agent prepares everything. You approve.
About 40 seconds
It opens on the desktop at the top of the page.
It opens at the top of the page.
Scripted demo with an invented company and invented data. Not live AI.
We build alongside
a real company
ATS (Around The Show) has worked in security and ticketing for live events since 2000. We build and test our software with them. Right now we are mapping how live events really run, before deciding what to build. It is a slow start, on purpose.

Start with one company
Right now that means ATS, starting from how their work runs day to day.
Ship small things often
That is our aim, so a wrong guess stays small.
Learn from real use
We want to see how people actually use it, then fix what does not work.
A small team
in Rome
Two founders, no switchboard. Book a call and you talk to one of us.

Mattia Marsili
CEO & Founder
Leads the company. Calls with him are in Italian.
LinkedIn
Ben Shafer
COO & Co-founder
Co-leads the company. Calls with him are in English.
LinkedIn
Careers
No open roles.
Open door.
No open roles right now, but we read every application. If you want to build software for real companies, write to hello@trezeroquattro.com. Tell us who you are and what you would like to work on.
A few lines about you, and your CV if you like.
This week at 304
From the sticky note on the desktopFrom our weekly sticky note
- The new website is live. You are looking at it.
- New look on our LinkedIn page too.
- Contract and release templates redone.
- Still mapping how live events really run, before deciding what to build.