A trust layer between every buyer and seller of used electronics.
Refurbished phones, laptops and tablets are the fastest growing part of European e-commerce, and the least trusted. Enso OS fixes that with a simple rule: don't trust a listing until the hardware itself has been checked and actually matches what's advertised.
The refurb market is built on trust nobody verifies.
Every marketplace tries to solve this alone — with seller reputation systems, AI photo checks, and warranty insurance. None of them actually check the hardware. That's why fraud keeps climbing as volume grows.
"A-grade", "like new", "excellent" — every platform uses its own scale, and most of it is filled out by hand. Buyers regularly get a device that doesn't match what was listed.
Liquid corrosion, reballed CPUs, jump-wired traces, swapped Face ID modules — none of it shows up in a photo or a 2-minute software test.
Blacklisted, region-locked, or carrier-blocked devices are resold across borders every day. The buyer finds out at activation.
Buyers and sellers argue for weeks over who's at fault, because nobody has real data on the device's actual condition. Platforms eat the cost or lose the customer.
Keep European electronics in European hands — for longer.
Every device that fails the second-hand market becomes e-waste, or worse, gets shipped out of the EU to be stripped for parts. Enso OS exists to break that cycle. By making the refurbished market verifiably trustworthy, we extend the working life of millions of devices, recover value for European sellers, and keep critical hardware inside the bloc.
Each verified device gets a Digital Product Passport with full repair, ownership and component history, so its next sale is faster, fairer, and traceable.
Built and maintained from Santo Tirso, Portugal. No US or Chinese cloud dependency in the validation chain. Aligned with EU DPP 2027 and Right to Repair.
Our diagnostic software checks at a microsoldering-grade level, the same things a skilled technician would look for, not a five-minute checkbox app. It catches what a photo never could.
One integration. Every listing, verifiably real.
Whether you run a C2C marketplace, a B2B refurb auction, a buy-back program or a circular retail brand — Enso OS plugs in as your verification layer. You keep the customer relationship, the payments, and the shipping. We handle the part that scares everyone: proving the hardware is what it's claimed to be.
One API call, or a hosted checkout option. The seller runs our diagnostic on their own device before it ships. No platform rebuild required.
IMEI clearance, board-level inspection, battery health, component authenticity — typically done in minutes from the seller's own bench.
On pass, we issue a Digital Product Passport the seller can attach to the listing. On fail, the seller gets a full report showing exactly what's wrong. What happens next — refund, relist, or repair — is up to your platform.
The trust infrastructure you'd never build alone.
Building hardware-level diagnostics and a DPP-issuing pipeline across the EU is a multi-year project on its own. Enso OS gives you all of it as a service, priced per validation, with no minimums during pilot.
Talk to integrations- Fewer returns, fewer support tickets
- Higher buyer trust → higher conversion and AOV
- EU DPP 2027 compliance handled for you
- One consistent report standard across every seller on your platform
- White-labelable: your brand stays on the receipt
Both sides get the real picture.
- An independent report you can attach to future listings.
- Higher sale prices: honest devices finally stand out from the noise.
- A documented result instead of a grading guess buyers have to take on faith.
- A signed Digital Product Passport that follows the device for life.
- Confidence that what you bought wasn't stolen, blacklisted, or board-damaged.
- Proof the listing matches the actual device, not just the seller's word for it.
Ready to make your marketplace verifiably trustworthy?
We are onboarding pilot partners across the EU through 2026. If you operate a refurb marketplace, a buy-back program, or a circular retail brand — let's run a validation cohort together.