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OnChain Systems UG (haftungsbeschränkt)

Teckstr. 60, 73207 Plochingen

+49 176 47722530

info@onchain-systems.com

© 2026 OnChain Systems

Industries

  • Service & maintenance companies
  • Property management
  • Law & tax firms
  • Custom machinery & contract manufacturing
  • Engineering & planning practices
  • Custom project

More

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OnChain Systems
Solutions
Industries
BlogAboutContact

Service & maintenance companies

Job · Callout · Inspection report

Property management

Building · Owner · Meeting · Statement

Law & tax firms

Matter · Deadline · Document · File

Custom machinery & contract manufacturing

Enquiry · Costing · Service job · Documentation

Engineering & planning practices

Project · Tender · Deadline · Variation

Custom project

Your routine · Your words · Your programs

All industries at a glance

AI Agents & Automation

Autonomous agents & automated workflows

Offline LLMs

GDPR-compliant AI without the cloud

AI Assistants

Knowledge assistants & service bots (internal & external)

Document Intelligence

Extraction & processing

Solutions in Detail
Service & maintenance companiesJob · Callout · Inspection report
Property managementBuilding · Owner · Meeting · Statement
Law & tax firmsMatter · Deadline · Document · File
Custom machinery & contract manufacturingEnquiry · Costing · Service job · Documentation
Engineering & planning practicesProject · Tender · Deadline · Variation
Custom projectYour routine · Your words · Your programs
All industries at a glance →
AI Agents & AutomationAutonomous agents & automated workflows
Offline LLMsGDPR-compliant AI without the cloud
AI AssistantsKnowledge assistants & service bots (internal & external)
Document IntelligenceExtraction & processing
Solutions in Detail →
Service & maintenance companiesJob · Callout · Inspection report
Property managementBuilding · Owner · Meeting · Statement
Law & tax firmsMatter · Deadline · Document · File
Custom machinery & contract manufacturingEnquiry · Costing · Service job · Documentation
Engineering & planning practicesProject · Tender · Deadline · Variation
Custom projectYour routine · Your words · Your programs
All industries at a glance →
AI Agents & AutomationAutonomous agents & automated workflows
Offline LLMsGDPR-compliant AI without the cloud
AI AssistantsKnowledge assistants & service bots (internal & external)
Document IntelligenceExtraction & processing
Solutions in Detail →
BlogAboutContact

Workflows that run by themselves

AI automation for
service companies, property managers, law firms and more

Enquiries, quotes, appointments and documentation run across several systems in your organisation, and between every handover sits a person. We rebuild those workflows so they run by themselves, one at a time and fitted to what already runs at your place.

Equally for custom machinery and contract manufacturing, for engineering and planning practices, and for businesses whose workflow is on none of these pages. See all industries

Intelligent Automation

AI agents handle recurring tasks, automated, around the clock.

Tailored, not off the shelf

Every solution is built for your use case. No toolkit, no features nobody ever opens.

Your Data Stays In-House

Self-hosted language models where your profession or your clients require it.

Request a free checkHow we work

Who we work for

Where does it hurt in your office?

We automate back-office workflows. The technology is similar everywhere; the workflows worth automating are not. So we build every solution specifically for the business that uses it. Pick your industry and see exactly what we take over there.

Service & maintenance companies

Job · Callout · Inspection report

  • Enquiries become jobs
  • Maintenance dates announce themselves
  • Inspection report and invoice from the callout
What we automate here

Property management

Building · Owner · Meeting · Statement

  • Post lands at the right building
  • A damage report becomes a contractor job
  • Meeting, minutes, resolution register
What we automate here

Law & tax firms

Matter · Deadline · Document · File

  • Incoming post filed to the matter
  • Deadlines with an owner and an early date
  • Engagement papers pre-filled, file kept
What we automate here

Custom machinery & contract manufacturing

Enquiry · Costing · Service job · Documentation

  • An enquiry becomes line items with dates
  • A costing sheet that starts filled
  • Service job, spare part, documentation
What we automate here

Engineering & planning practices

Project · Tender · Deadline · Variation

  • Tender package read down to key points
  • Fee proposal prepared under HOAI
  • Deadlines and variations in time
What we automate here

Custom project

Your routine · Your words · Your programs

  • Workflows outside the five industries
  • Built around the programs you have
  • The check first, then the scope
What we automate here
Request a free checkAll industries at a glance

From the workshop

Five industries, five finished applications

Every solution is built for the business that uses it. Nobody has to take that on trust: each industry shows one screen from the finished application here, and its industry page shows all of them. All five run; none of them is a mock-up.

/dashboard
ServiceCRM
/
Verwalter-Cockpit
/
Kanzlei-Cockpit
/
Werk-Cockpit
/
Planungs-Cockpit

ServiceCRM. Built for an inspection and maintenance business with twelve field engineers. 32,000 addresses imported, four programs connected, none of them replaced.

See every screen
Request a demo

We set you up with access to the demo installation, showing the workflows of your industry.

The screens show a demo installation with invented companies, people and devices.

In short

What holds for every application we build

Whatever the industry and whatever the workflow, and whatever the size of the first step.

  • In the browser and on the phone

    Nothing to install, no rollout on every machine. At the desk, from home and on the road on a phone like an app: reply straight from the site.

  • Nothing gets replaced

    Connected to all your programs: DATEV, Lexware, ERP, document store. They stay where they are. We sit in front of them and connect, instead of replacing.

  • Two-factor sign-in

    Access does not hang on a password alone. A second factor for every account, including access from the phone.

  • Roles and audit trail

    Who may see and change what is set per role. Every access is logged, and that log is the evidence when someone asks.

  • GDPR and professional secrecy

    Data processing agreement, documented access, verifiable deletion. Where § 203 of the German Criminal Code applies, client data does not leave the building, or only pseudonymised and after visible approval.

  • Every entry verifiable

    Next to every value read out sits its place in the original, next to every deadline the calculation. Check instead of trust.

  • No per-user cost

    149 € a month, however many people work with it. No licences per head, no minimum term.

  • Fixed price up front

    A tightly cut first workflow costs a fixed 5,900 €. What yours costs comes out of the free check, before anything is ordered.

What We Deliver

A.I. Solutions

AI agents, assistants and intelligent automation, every solution tailored to your use case, from the first idea to stable operation.

AI Agents & Automation

Autonomous AI agents and automated workflows, with clear roles, security concept and integration into CRM, ERP & APIs.

Offline LLMs

Self-hosted, GDPR-compliant AI language models in your infrastructure, without sending data to external cloud services.

AI Assistants

Internal knowledge assistants (RAG) and external chat & voice bots, evidence-backed answers and real actions, connected to your systems.

Document Intelligence

Automatic extraction, classification and processing of invoices, contracts and forms, straight into your systems.

Not Just Technology: Real Business Advantages

Concrete AI Advantages for Your Business

Artificial intelligence solves concrete problems: cut effort, react faster, make knowledge usable. All in measurable results for your business.

Less Manual Effort

AI agents and automated workflows handle recurring tasks, from data entry to reporting, around the clock and without media breaks.

24/7 without pauseFewer errorsFaster turnaround

Answers Around the Clock

Internal knowledge assistants and external service bots answer questions in natural language, evidence-backed from your data and connected to your systems.

Instant answersEvidence-backed (RAG)Relieves your team

Process Documents Automatically

AI reads invoices, contracts and forms, extracts the relevant data, classifies it and hands it straight to CRM, ERP or DMS.

No manual typingOCR & layout understandingStraight into your systems
%

Better Decisions From Data

AI evaluates large volumes of data, detects patterns and delivers understandable, up-to-date decision bases instead of time-consuming manual reports.

Up-to-date dataPattern & anomaly detectionUnderstandable reports

Full Data Sovereignty

Self-hosted language models run in your infrastructure, modern AI performance without sensitive data ever leaving your house.

Data stays in-houseNo cloud dependencyGDPR-compliant

Scale Without Extra Effort

Automated processes and assistants grow with your business, more volume at consistent quality, without proportionally more staff.

More volumeConsistent qualityPredictable costs

Before you ask

What we get asked most

01

What does it cost?

A tightly cut first workflow costs a fixed €5,900. Larger workflows run between €8,000 and €19,000, depending on how many channels and applications they pass through. Running it afterwards costs €149 a month, regardless of how many people use it. No licence fees, no per-user cost, no minimum term. What your workflow costs follows from the free check.

02

And if we do not want it any more later?

Then you stop. There is no minimum term and no licence that keeps running. What we build sits on your own server, and the workflow carries on without us as it did before, only by hand. We build nothing you would have to dig yourself back out of.

03

Do we have to replace our applications?

No. We do not replace anything, we connect it. Your accounting, your trade software and your filing stay where they are and stay authoritative for their data. We sit in between and pull what is needed through the interfaces that already exist. Where there are none, we work from the files your applications put out anyway.

04

How long until something is running?

The first workflow goes live four to six weeks after you give the go-ahead. Six rather than four when your applications have no interface and we work from the files they put out anyway. Before that comes the free check, which takes 45 minutes.

05

Our software does AI now. So why you?

Sometimes for nothing at all, and then we say so. A bundled module is often enough for suggested wording and for searching. It is rarely enough when things have to be matched across several applications, when a deadline has to be calculated rather than read off, or when it has to be traceable why something was decided the way it was. Every industry page sets out the trade-off in detail.

06

Where do the models run, and who sees our data?

Where your profession or your clients require it, the language model runs entirely in your house, on your own machine or server. Then no request leaves your network. Where that is not necessary, we state plainly what goes where, before anything is built.

07

What happens if the automation fails?

Then the workflow carries on as before, only by hand. We build nothing whose failure stops your business, and nothing that cannot be switched off again.

Ready for the Next Step?

Let's Get
Started Together

Briefly describe what you have in mind. We come back with a proposal for your case: technical implementation and next steps.

Get in Touch