Your whole business, in one system. Yours.
Orders in one program, the fleet in a spreadsheet, bookings on Viber, customers on somebody’s phone. It works, until it doesn’t.
We build custom platforms that put the entire operation on one screen: rules written around how you work, your code, your data. Not whatever a ready-made plugin does: whatever your business needs.
The rentacrate.gr platform, in production
From Excel to blockchain, in one year
The story of rentacrate.gr
Rent a Crate rents out reusable moving crates. When its operation stopped fitting into off-the-shelf tools, we built it a system of its own. Within a year, the e-shop became an operations platform, and the platform gained something no other Greek service has: a public registry anchored to a blockchain.
Rental e-shop
An online store with per-area coverage checks and end-to-end online ordering.
Operations platform
Orders, fleet, coverage areas, franchise: the entire business in one custom system, built to fit.
Chained registry
Every movement of every crate is cryptographically sealed and anchored to the public Sui blockchain. A first for a Greek service.
sha 3c0baf5d…6ce9prev 3c0baf5d…6ce9sha 113f7ee1…e872sha d94b15bd…d765tx EErXaKjw…Bn6whead d94b15bd…d765
Don’t take our word for it. Check it.
Scan the QR with your phone: it opens the public passport of crate RC-FEERZ4E, with its cycles and its full movement registry. Real records, publicly verifiable by anyone, with no account and no permission needed.
What a platform can run
Systems built around your business
Operations systems
Orders, fleet, bookings, coverage areas, franchise: the daily operation on one screen, with rules written for you.
Customer portals
Your customer serves themselves: accounts, history, renewals, self-service, without phone calls and email.
Payments and invoicing
Cards, subscriptions, automatic invoicing: the till runs on its own, legally and around the clock.
Integrations
ERP, couriers, third-party APIs, automations: the platform talks to what you already use instead of forcing it out.
Verifiable registries
Cryptographically chained records anchored to a public blockchain: data that is proven, not merely declared.
Admin and reporting
An admin environment made for your own team, with the numbers you need and none of the noise you don’t.
When the product is the platform itself
SendBig: ours, in production
Our customers upload files of up to 10GB to SendBig, get a link, and the recipient downloads from a bilingual download page. That simple up front. Behind it, an entire system: accounts, link expiry, limits, an admin environment.
SendBig was designed, built and is operated by us, as our own product, exclusively for Sensis Media customers. It is our writing sample on a platform with product-grade demands, and a perk every customer of ours gets, for free.
World-class infrastructure
Security, privacy and files up to 10GB
Behind every platform we build there is architecture you never see, but it protects you. Files on SendBig live in private cloud storage on world-class infrastructure, travel encrypted straight from your browser, and nobody touches them without a signed permission that expires in seconds. Absolute privacy: not as a promise, as architecture.
upload 128MB partsup to 10GB per fileauth · tokens · limitssig AWS4-HMAC-SHA256private bucketzero public URLs302 → signed URLexpires in 300sOur own cryptographic signing
Every transfer is sealed with a cryptographic signature we implemented ourselves, with no third-party SDKs: code we know line by line, verified against the international standards.
Absolute privacy
No file has a public address. Links expire, permissions are stored only encrypted, and every download is logged. Your material is seen only by the people you choose, for as long as you choose.
Straight from the cloud
Files are served directly from enterprise cloud infrastructure with global reach: speed and reliability that do not depend on a single machine, for files up to 10GB.
How it works for you
Three steps, in writing, no surprises
SCOPING AND A WRITTEN PROPOSAL
You describe how your business works today and where it hurts. We reply within one working day with a written proposal: what gets built, in which phases, at what cost.
PHASES WITH DELIVERABLES
The platform is built in phases you see and test. Every phase delivers something that works, not promises for the end.
HANDOVER AND MAINTENANCE
Your code, documentation, 100/100 PageSpeed wherever there is a public page, and agreed maintenance so the system grows with you.
We sell what we use: the checkout, the domains and the customer account on this very site run on our own platform, built the same way.
BEFORE YOU ASK
HOW MUCH DOES A CUSTOM PLATFORM COST?
As much as the system you need: there is no price list for something built to measure. That is why we answer with a written proposal within one working day, costed per phase, before you commit to anything.
HOW FAST IS IT DELIVERED?
The first working phase usually in weeks, not months. The full timeline goes into the proposal, in writing, per phase.
WHAT IS IT BUILT ON AND WHO KEEPS THE CODE?
Open, proven technologies, with no lock-in to third-party platforms. The code and the data are yours, documented so another team could carry on.
I ALREADY HAVE A SITE OR E-SHOP. DO WE START FROM SCRATCH?
Not necessarily. rentacrate.gr started as an e-shop and evolved into a platform over three generations. We build on what stands and replace what holds you back.
WHEN DOES BLOCKCHAIN MAKE SENSE?
When you need data that can be proven to third parties: traceability, registries, certifications. If you don’t need it, we won’t propose it: it is a tool, not an ad.
DO YOU WORK WITH AGENCIES?
Yes, white-label and under NDA: the platform ships under your brand. See the agencies page.
Got an operation that doesn’t fit in a plugin?
Describe how your business works today and where it hurts. We reply within one working day, with a written proposal and implementation phases.