Enso OS is software, built by someone who's tested 25,000 devices by hand.
There's no warehouse behind this. Enso OS reads a device's real condition directly from the hardware and turns it into a standardized verification file, wherever the device already is. What makes it worth trusting isn't a facility, it's three years of doing this work manually first.
Three regulatory tailwinds converging in 24 months.
Every electronics SKU sold in the EU will need a Digital Product Passport. Enterprises need a software issuer, and they need it now.
Scope 3 emissions are now auditable. Refurb savings only turn into deductible carbon if you can actually prove them.
The EU's right-to-repair directive penalizes throw-away inventory. A standardized validation pass keeps salvageable devices in the market instead of the landfill.
Why software scales and a warehouse doesn't.
Enso OS is diagnostic software, not a service we operate ourselves. It runs on whatever bench already exists, a refurbisher's, a marketplace partner's, even a buyer's laptop after delivery. We don't do repairs; we verify.
No warehouse to build means no capital-intensive facility standing between us and the next partner. Scaling means onboarding a new bench, not constructing a new site. See the roadmap →
Santo Tirso is where the software gets built and tested, not a facility devices are shipped to. The roadmap is what turns that into a real business, one pilot at a time.
What we actually check, and why it's hard.
We read hardware identifiers straight from the controller and compare them against what the operating system reports. When the two disagree, a swapped logic board, a mismatched battery, a unit sold as new that isn't, the device gets flagged. Getting this working reliably across device types, especially locked-down platforms like iOS, is real engineering, not a weekend script.
Each verified device logs whether it stayed in circulation instead of getting shredded, feeding into the kind of CO₂-avoided reporting the EU's CSRD rules are starting to ask companies for.
What you get with Enso OS, versus the alternatives.
| Capability | Enso OS | Manual inspection | Generic diagnostics SaaS |
|---|---|---|---|
| Automated hardware-layer checks | yes | by hand | software only |
| Hardware-level anti-spoofing checks | yes | no | no |
| Carbon ledger (CSRD-ready) | yes | no | no |
| Consistent pass/fail standard | yes | operator-dependent | yes |
| Time per device | ~minutes | operator-dependent | ~minutes |
A mission born on the assembly line.

Built from Porto, a hyper-connected city I'd recommend to anyone visiting Portugal, and shaped a little by the quiet precision of Siza Vieira's concrete-and-Atlantic architecture just up the coast at Leça da Palmeira.
I am Rúben, a 21-year-old computer science student at University of the People, and electronics have been part of my life for a long time now.
Before founding Enso OS, I spent three years on the front lines of hardware refurbishment. Not reading about it, doing it: operating SMD remelting furnaces, micro-soldering by hand, running the same diagnostic checks on device after device, roughly forty a day. That works out to somewhere around twenty five thousand devices by the time I started building this company.
That's where I saw the real problem up close: premium, reliable technology doesn't reach everyone because the cost of entry is too high, while millions of perfectly usable devices get thrown out, not because they're broken, but because nobody in the second-hand market could prove they weren't.
So Enso OS takes everything I learned at that bench and puts it into software, so every device gets proven to actually work the way it's claimed to, without needing another three years and twenty five thousand devices to get there.
- Computer Science · UoPeople
- Electronics, Automation & Computers (IV) · Tomaz Pelayo
- SMD remelting & micro-soldering
- IT refurbishment engineering
- Mobile device diagnostics
Straight answers, not pitch-deck answers.
Let's build the trust layer.
Enso OS is in active development, preparing for pilot partners and EU grant applications. If you want to talk about where this is headed, reach out.