Custom AI software for your operations — at a fixed price
Onterion is an operational software studio for small and mid-sized businesses. We build custom AI software, process automation and operational web applications around the way your team actually works — with a binding fixed-price proposal instead of open-ended day rates.
- Fixed price, no billing surprises
- GDPR-native, EU data residency
- 100 % custom-built
Services
What we build for you
Six building blocks, one goal: your daily operations run on software that fits your workflows — not the other way around.
Custom AI software
Tailor-made AI tools and AI-powered applications — from the first idea to productive daily use, cleanly integrated into your existing workflows.
Explore custom AI software →Process automation
Recurring workflows run themselves: triaging inbound email, preparing quotes, generating reports — your team wins back hours every single week.
More on automation →Operational web applications
When spreadsheets hit their limits: custom business software, from internal tools to complete operational applications — your processes, mapped properly.
More on web apps →Workforce scheduling
Shift and staff scheduling software built to your rules: schedule suggestions, automatic backfilling when someone calls in sick, shift swaps for the team.
More on scheduling →Document AI
Invoices, delivery notes and contracts are read, validated and handed off to your systems automatically — instead of being typed in by hand.
More on document AI →Dashboards & integrations
Staffing levels, open cases, critical KPIs — live at a glance, fed by clean interfaces to your ERP, time tracking and industry software.
Discuss your stack →Custom AI software — with a binding fixed price
How the process works, what drives cost, and what to bring to a first call: explained compactly on one page.
The AI advantage
Many manual steps become one flow
What your team works through step by step today, a custom AI system handles in the background — your people only step in for the exceptions.
By hand Today
Example: document intake → posting, every step manual
Five manual steps per documentties up your team
With Onterion AI Automated
The same workflow — the AI takes over the routine
One review glance for exceptionsthe rest runs on its own
Schematic view of a typical workflow — we'll pinpoint the process with the biggest leverage for you in a free intro call.
How we work
Four steps to a running system
No months of concept theatre: you know the price before the project starts — and you see working software early.
Discovery
We analyse your workflows, data and systems — and identify the use case with the greatest leverage for your operations.
Fixed-price proposal
You receive a binding proposal with a clear scope, timeline and price. No open-ended day rates, no surprises.
Build
We develop in short iterations with working software at every stage — you see progress, not slide decks.
Operate
Go-live, training, monitoring: your system runs reliably day to day and grows with your business.
Industries & use cases
Where AI delivers for operations today
Concrete, practical applications — honestly assessed, without the hype:
Why Onterion
Engineered in Germany. Built for operations.
Engineered in Germany
Based in Essen, working with clients across Europe and beyond. Founder Serkan Parlak is personally your point of contact — from the first call through daily operations.
EU data residency
On request, your systems run entirely on German or EU infrastructure — your data stays exactly where you want it to be.
GDPR-native
Privacy is an architectural principle here, not an afterthought: data processing agreements, data minimisation, auditable processing — with the EU AI Act in view.
Fixed-price principle
A binding proposal before the project starts: scope, timeline and price are locked in. You carry no open-ended day-rate risk.
Onterion · Essen, Germany · More about us →
Frequently asked questions
Clear answers
How much does custom AI software cost?
Every project receives a binding fixed-price proposal after a short discovery phase, with a clearly defined scope and timeline. You know the full cost before the project starts — no open-ended day rates. The typical process and the factors that drive cost are explained on our custom AI software page.
How does a project with Onterion work?
In four steps: discovery (understanding your workflows, data and systems), a binding fixed-price proposal, the build phase in short iterations with working software at every stage, and finally operations — go-live, training and monitoring.
Can we use AI in a GDPR-compliant way?
Yes. We design for privacy from day one: data processing agreements, data minimisation and auditable processing. On request, your systems run entirely on German or EU infrastructure, so your data never leaves the jurisdiction you choose.
Who is custom AI software worth it for?
For small and mid-sized businesses where recurring workflows eat up hours — typically teams of 20 to 250 people. If spreadsheets, shared inboxes and disconnected point solutions are slowing down daily operations, a system built around your actual process pays for itself quickly.
How quickly is a first version ready to use?
Depending on scope, we often deliver a first production-ready version within a few weeks. The binding timeline is part of your fixed-price proposal — and you see working software early instead of month-long concept phases.
Can you integrate with our existing systems?
Yes. We connect ERP systems, time tracking, email and industry-specific software through clean interfaces, so data is never maintained twice and your team keeps working in the tools they know.
Do you work with international clients?
Yes. We are based in Essen, Germany, and work with English-speaking clients across Europe and beyond. Projects run remote-first with clear written communication; our German-language site is at onterion-ai.de.
Let's talk about your process
In a free intro call, we'll pinpoint where AI and automation deliver the biggest leverage in your operations — and whether a fixed-price project is the right fit. No obligation, no jargon.