Taking on new projects
6x7 is a software studio in Copenhagen and Athens. We design, build and run AI assistants, business systems and SaaS products for growing companies, and you work directly with the person who builds them.
Built with
40+
apps and products live in production
8
ERP modules shipped for one client
1
senior point of contact, start to finish
100%
of the code and accounts owned by you
Services
Six things we do well, all shipped to production and kept running.
Assistants that answer from your own documents, talk to customers, and carry out real actions inside your software. Grounded in your data, never guessing, with a person in the loop where it matters.
The system that replaces the spreadsheets: finance, ordering, procurement, HR and daily bookkeeping, with access rules per role.
Product design, build, sign-in, billing, hosting and launch. A live link from week one.
Pipelines that collect and clean data, dashboards people actually read, and machine learning where it earns its keep.
Fast, multilingual websites and installable web apps, from a taverna's menu to a tourism guide.
Hands-on sessions that teach your team to build and work with AI agents safely, on your own use cases.
Case studies
Two client platforms and one of our own products.
Client project · Venture capital
Venture investors were sourcing deals by hand, across company registries, spreadsheets and word of mouth.
Client project · Business software
Small companies need finance, purchasing, HR and reporting in one place, without an enterprise system's price and setup time.
Our product · Productivity
Teams lose decisions in meetings, and the answer to the question just asked usually sits in last week's notes.
Our products
Every client project benefits from what we learn running these in production.
Page AssistantA talking assistant that runs real actions in any web app.
DaybookShared daily takings, expenses and profit for small shops.
RiffscribeAny song to sheet music, tabs and a backing track.
Samos CompanionFour-language visitor guide for a tourism business.
ChatFixLearn English from the mistakes in your own chats.
Journal FindA ranked journal shortlist from a paper abstract.
ShipyardOpen-source plugin and course for building apps with AI.
SparksEvery idea for every project, in one notebook.How we work
You describe the problem. You get an honest answer on whether software is the fix, and a rough cost.
Usually within one to two weeks: a working version with your real data, at a fixed price.
A live link from the first week and a demo every week. Progress you can click, not status reports.
Hosting, monitoring, backups and fixes. Or a clean, documented handover to your own team.
Why 6x7
No account managers or handoffs. The person on your call designs and writes your software.
We build with AI coding agents under close senior review. A small team ships what used to take a large one.
Code, hosting and every account are in your name. Standard tools, tested and documented.
“Most companies don't need a big agency. They need someone who understands the problem, builds the right thing quickly, and stays to keep it running.”
Filippos Ktistakis
Founder and CEO
Physicist by training, with an MSc in Computational Physics from the University of Copenhagen and years in machine learning and data analysis. Since then he has shipped more than 40 products, from AI copilots to a full ERP.
FAQ
Something else? Ask us directly.
You do. The repository, hosting and every service account are in your name from the start. Nothing is locked to 6x7.
Everything is documented and tested, on standard tools (Next.js, Python, Postgres, Vercel). Another developer can pick it up without us.
It depends on scope. After the first call you get a fixed price for the prototype and a clear estimate for the rest, before you commit to anything.
We take on a few client projects at a time, so each gets real attention. Most projects start within two weeks of the first call.
Yes. Most work happens remotely, in English. Greek is native, and Danish is a work in progress.
Start a project
A few sentences are enough. You get a reply within one working day, with either a time for a call or an honest “this isn't for us”.