Santo Tirso is the Enso HUB. Enso OS is how we'll license the playbook later.
Today, every device runs through the Enso HUB — a standardized validation pipeline we operate ourselves. Tomorrow, Enso OS will package that same pipeline as software so trusted partners can run their own certified nodes. Same playbook, low overhead per node.

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 — now.
Scope 3 emissions are now auditable. Refurb savings turn into deductible carbon — if you can prove them.
EU R2R directive penalizes throw-away inventory. A standardized validation pass keeps salvageable devices in market — and out of landfill.
One HUB now. A licensable OS later.
Enso HUB is the validation pipeline we operate in Santo Tirso today — a standardized, automated process that every device runs through before it leaves with a Digital Product Passport. We don't do repairs; we validate.
Enso OS is the future product: the same playbook, packaged as software for trusted partner nodes. It's on our roadmap, not on sale yet. Read the Enso OS preview →
Santo Tirso stays our hub for hands-on validation and edge-case audits, while the OS roadmap is what unlocks the 80%+ gross margin in later phases.
Modeled on a tier-2 European refurbisher running 8k devices/month. Founder to confirm at term sheet.
Iberia first. Then Europe.
- 20251Iberia10 nodes€180k ARRTier-2 refurbishers
- 20262DACH60 nodes€1.1M ARRCarrier trade-in programs
- 20273EU-27240 nodes€4.3M ARRRetail chains · DPP launch
- 20284UK + Nordics500 nodes€9M ARRMarketplace integrations
Targets · founder to confirm at term sheet
What we do differently.
We read hardware identifiers straight from the controller and compare them against what the operating system reports. When the two disagree — swapped logic boards, mismatched batteries, units sold as new that aren't — the device is flagged before it leaves the bench.
Every device passing through the HUB logs the materials kept in circulation and the CO₂ avoided, then issues a CSRD-ready certificate the customer can drop straight into their ESG reporting.
What you get with Enso HUB — vs. the alternatives.
| Capability | Enso HUB | Manual inspection | Generic diagnostics SaaS |
|---|---|---|---|
| Automated hardware-layer checks | yes | by hand | software only |
| Escrow on every transaction | 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 recommend to anyone visiting Portugal — and shaped 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 my entire life has revolved around electronics.
Before founding Enso Systems, I worked on the front lines of hardware manufacturing and refurbishment — operating complex SMD remelting furnaces, performing high-precision micro-soldering on production lines, and executing deep diagnostic audits on hundreds of devices across multiple Portuguese hardware operators.
During my years at the workbench, I realized a major problem: premium, high-performance technology does not reach everyone. The cost of entry is simply too high, yet millions of perfectly salvageable devices are discarded as waste because of a massive trust deficit in the second-hand market.
My mission is to change that. By combining hands-on hardware engineering with automated cloud forensics, we ensure every single device performs exactly like new — making top-tier technology accessible, transparent, and affordable for everyone.
- Computer Science — UoPeople
- Electronics, Automation & Computers (IV) — Tomaz Pelayo
- SMD remelting & micro-soldering
- IT refurbishment engineering
- Mobile device diagnostics
The questions every term sheet asks.
Let's build the trust layer.
We are currently demonstrating Enso OS to key venture partners and EU grant administrators. Let's talk about how we can deploy our software framework across your supply chain.