Software and digital solutions, built to last.
SustainCore is an independent software and solutions house in Athens. We design and develop SaaS platforms, web applications, and business websites, engineered with clarity, precision, and long-term thinking.
Products
Software we own,not just ship.
Practice Management
LawDesk
Practice management software for Greek law firms. Cases, deadlines, billing, and documents all live in one calm, reliable place.
ESG Reporting
CoreIQ
ESG and CSRD reporting platform for companies navigating the new wave of sustainability compliance.
What we do, end to end.
Fast, accessible websites built for performance and clarity, from marketing sites to complex content-driven platforms.
- Astro
- Next.js
- Tailwind
Custom web applications and SaaS platforms taken from first concept to a production launch you can rely on.
- SaaS
- APIs
- Databases
Strategy, architecture, and technical direction. We help teams make decisions that hold up over years, not sprints.
- Architecture
- Audits
- Roadmaps
Selected projects
Kepesoglou Law
Corporate website for a Greek law firm. Clean, authoritative, and built to establish trust from the first scroll.
Paraskevi Politaki
Website for an Athens practice that appears before every Greek court. Dark and authoritative, built around one clear call to book a consultation.
Dr. Efi Sarakinou
Site for an aesthetic and reconstructive plastic surgeon, where photography carries the work and the copy stays quiet and precise.
Petique
Pet shop and grooming salon in Argyroupoli. Warm and playful, with every path pointed at booking an appointment.
How we work
A deliberate, transparent path from first conversation to a product that runs, and keeps running.
- 01
Discovery
We learn the problem, the constraints, and the people who'll use what we build.
- 02
Design
Structure first: information architecture, flows, and interface decisions that hold up.
- 03
Build
Clean, typed, tested code. Shipped in increments, not a single drop at the end.
- 04
Launch
Deployed, monitored, and handed over with documentation. Not abandoned.
Writing
Notes on building software that lasts.
Rewrite or keep patching
Every team that has lived with a system long enough eventually wants to throw it away. The wish is usually genuine and the reasoning is usually wrong, so it helps to know which signals actually distinguish the two cases.
Reading a software proposal
Three quotes arrive and the instinct is to line up the numbers. The numbers are the least informative thing on the page. What a proposal actually reveals is how the people who wrote it think — and that is what you are buying.
Choosing a stack that lasts
Technology choices are usually argued as though the question were which one is best. For anything meant to run for years, that is not the question — and the better one has almost nothing to do with the technology.
Studio
SustainCore is an independent software and solutions house working across software, sustainability, and professional services, building tools that solve real problems for real businesses.
0
Products live
0
Client projects completed
2026
Founded
GR
Based in Greece
FAQ
Questions, answered plainly.
What does SustainCore do?
SustainCore is an independent software and solutions house based in Athens, Greece. We design and build SaaS platforms, web applications, and business websites for clients, and we develop our own software products: LawDesk, practice management software for Greek law firms, and CoreIQ, a sustainability reporting platform currently in development.
Where is SustainCore based, and what languages do you work in?
SustainCore is based in Athens, Greece, and works in both Greek and English. The company was founded in 2026 and has completed seven client projects alongside its own two products.
What is LawDesk?
LawDesk is practice management software for Greek law firms, built and run by SustainCore. It holds cases, procedural deadlines, billing, and documents in one place, so a case is a single record rather than a folder, a calendar entry, and a spreadsheet that disagree with each other. It is live at lawdesk.gr.
What is CoreIQ, and when will it be available?
CoreIQ is a sustainability reporting platform in development at SustainCore, for companies that currently assemble those figures by hand from systems that were never set up for reporting. There is no launch date yet; the CoreIQ page takes an email and we write once, when it is ready.
What services does SustainCore offer?
SustainCore offers three services. Web development: fast, accessible websites, from marketing sites to content-driven platforms. App development: custom web applications and SaaS platforms taken from first concept to production launch. Digital consulting: strategy, architecture, audits, and technical direction.
Which technologies does SustainCore build with?
We build mainly with Astro, Next.js, and Tailwind CSS on the front end, over SaaS architectures, APIs, and relational databases. Code is typed and tested, and shipped in increments rather than as a single drop at the end.
How does a project with SustainCore work?
A project runs in four stages. Discovery: we learn the problem, the constraints, and the people who will use what we build. Design: information architecture, flows, and interface decisions. Build: clean, typed, tested code, shipped in increments. Launch: deployed, monitored, and handed over with documentation.
How do I get in touch, and how quickly do you reply?
Write to info@sustaincore.gr or use the contact form on this site. We reply within two working days. The site sets no cookies and runs no analytics, so the form is the only thing on it that collects anything at all.
Have a projectin mind?
Location
Greece
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