Software Development AI Agents AI Consulting

Custom Software, Integrations and AI Agents from Vienna

In Every Particle — Understanding and Connecting Technology. For over 10 years we have built custom software for companies in Austria, Germany and Switzerland, connected their ERP with the rest of their systems and introduced AI agents — GDPR-compliant, on your infrastructure, without dependency on US cloud services.

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Services

Our Services — Custom Software, AI Agents and System Integration for the DACH Region

We guide companies across Germany, Austria, and Switzerland through every stage of digital transformation — from digitalization strategy and tailored software development to data-sovereign AI deployment and long-term operations. Six core areas, refined over a decade: digital transformation consulting, complex system integrations, FinTech software development, digital healthcare, intelligent building automation, and custom AI solutions built on your own business data.

Digital Consulting

WIENtech delivers end-to-end digital transformation consulting for B2B companies in the DACH region, from business process analysis and strategy to legacy replacement, workflow automation, and cloud migration.

For SMEs, we also secure funding through programmes such as KMU.DIGITAL in Austria, go-digital in Germany, and cantonal initiatives in Switzerland.

  • Digitalization strategy and transformation roadmaps
  • Legacy replacement, cloud migration, and IT modernisation
  • Process automation with AI and workflow optimisation
  • Data governance and enterprise data management
  • Change management for B2B organisations
  • SME digitalization funding advisory

System Integration

We connect ERP, CRM, and industry-specific systems into a unified data landscape so information flows automatically instead of being re-entered manually.

For manufacturers, we connect machines and sensors to business systems so production data reaches the people who make decisions.

  • SAP integration, ERP interfaces, and custom APIs
  • Connect ERP, CRM, warehouse, and industry software
  • Data consolidation from multiple sources
  • Industry 4.0 connectivity for machines and sensors
  • Legacy integration, migration, and automated data flows
  • Real-time data access across departments

FinTech Software

We build secure, scalable FinTech software that is BaFin-compliant and FINMA-compliant, PSD2-ready, and deeply integrated with existing banking and payment infrastructure.

From startups to established financial institutions, we deliver the custom software behind payment platforms, lending products, and eMobility billing systems.

  • BaFin-compliant and FINMA-compliant software development
  • Digital payment solutions and payment processing integration
  • eMobility billing systems and Charging-as-a-Service platforms
  • Loan management software and digital loan origination platforms
  • Treasury management and pay-per-use platform development
  • PSD2-compliant integrations and open banking connections
  • SaaS platform development for FinTech companies

Healthcare Software

We develop MDR-compliant and GDPR-compliant eHealth solutions that integrate with hospital systems and connect to the German Telematikinfrastruktur.

From DiGA development and telemedicine platforms to AI-powered medical documentation, every solution is built for DACH healthcare approval requirements.

  • MDR-compliant software development and ISO 13485 processes
  • DiGA development and prescription app engineering
  • Telemedicine platforms and white-label video consultation
  • Hospital integration and secure clinical data exchange
  • Digital patient record integration and TI connectivity
  • AI-powered medical documentation and reporting
  • Health app development for DACH standards

Building Automation

The revised EPBD mandates zero emission building compliance for new public buildings from 2028 and all new buildings from 2030, making intelligent building automation a core software requirement.

Our building control systems work reliably even without internet, while European cloud infrastructure delivers analytics, ESG reporting, and portfolio management.

  • Offline-capable and secure building automation
  • Z-Wave Long Range, Zigbee and LoRaWAN — manufacturer-independent radio standards for new builds and retrofits
  • LoRaWAN sensor networks for large portfolios, Matter for full device compatibility
  • Retrofit integration for existing building equipment
  • EPBD-compliant software and automated ESG reporting
  • Energy monitoring across entire portfolios
  • European hosting and data sovereignty

AI Agents for Business

We develop AI solutions that run exclusively on your own business data, with no external cloud dependency and no data sent to third-party providers.

The result is complete data sovereignty and faster, data-driven decision-making across contracts, customer data, financial information, and internal knowledge.

  • AI software that works on your own business data
  • Autonomous AI agents across internal documents and systems
  • Open-source AI on your infrastructure or in Europe
  • No data transfer to external AI providers
  • No vendor lock-in and no US cloud dependency
  • Data-driven decision support across enterprise knowledge
  • Integration with ERP, CRM, DMS, and data warehouses

Next Step

Recognize your challenge in one of these six service areas? In 30 minutes we clarify the cost range and the next step.

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FAQ

What CEOs and COOs Ask Us First

How much does an hour of software development cost?
The hourly rate for software development depends on seniority, technology and contract type — but what drives your budget is not the hour, it is the total effort for a clearly scoped result. After the requirements analysis WIENtech gives you a binding cost range per project phase. In the free 30-minute consultation you already receive a first order of magnitude.
How much does it cost to have software developed?
The cost of custom software comes from three factors: the number of processes covered, integrations with existing systems (ERP, CRM, inventory) and regulatory requirements (GDPR, BaFin, MDR). WIENtech delivers an MVP in 3–4 months and complex solutions with system integration and data migration in 6–18 months — the cost range derived from that is binding before the project starts.
How much does an AI agent cost?
The cost of an AI agent depends on the connected data sources, the degree of automation and where it runs — on your infrastructure or in a European data centre, without ongoing licence fees to US providers. WIENtech starts with a use-case analysis and a pilot that runs in your daily business within weeks, so you see the value before investing in scale.
How much does AI consulting cost?
AI consulting at WIENtech starts with a free 30-minute consultation, followed by a fixed-scope use-case analysis that identifies which processes in your company pay off first. You pay for results — prioritised use cases, a data-protection assessment, an implementation plan — not for slide decks. Consulting and implementation come from one team in Vienna.
Which AI agent providers are there?
AI agent providers fall into three groups: US cloud platforms such as OpenAI, Microsoft Copilot or Google, ERP and CRM vendors with built-in agents, and specialised development partners like WIENtech that build AI agents on open-source models, individually on your data and your infrastructure. For confidential business data and regulated industries the third group is the only one where not a single byte leaves your company.
Which AI technologies are GDPR-compliant for companies?
GDPR-compliant AI systems are those where personal data never leaves your controlled environment and no provider trains on your data — in practice open-source models on your own infrastructure or in European data centres. Cloud services such as ChatGPT or Copilot usually require enterprise contracts, a data-protection impact assessment and a review of data transfers. WIENtech builds AI agents so that these questions do not arise in the first place.
What is the difference between an AI agent and Agentic AI?
An AI agent is a single program that plans on its own, retrieves information from your systems, checks results and completes a task step by step; Agentic AI is the umbrella term for systems in which several such agents work together. What matters for your company: the agents work on your data, in your environment, with traceable results.
Custom software vs. standard software — which is better for my company?
Custom software pays off when your business processes are too complex or industry-specific for standard software — replacing legacy systems, connecting siloed systems, compliance requirements (BaFin, MDR, GDPR) or manual processes you want to digitise. Standard software remains the right choice where your processes match the standard. WIENtech tells you honestly in the first consultation which path fits.
What funding is available for digitalisation in SMEs?
For digitalisation and AI in mid-sized companies there is KMU.DIGITAL in Austria, go-digital and the Digitalbonus in Germany, and cantonal digitalisation programmes in Switzerland. WIENtech checks in the first consultation which programme fits your project and supports the application — funding noticeably lowers the investment threshold for custom software and AI agents.

Digital Europe

Technology for Europe's digital sovereignty

WIENtech is a European company based in Vienna — and we stand behind the EU's goal of developing innovation and business software in Europe: for European companies, municipalities, public administration and civil-society organisations, built on digital sovereignty. The Digital Europe Programme, the Commission's June 2026 technological sovereignty package with the Cloud and AI Development Act and the EU Open Source Strategy, and EU Inc. as a single European company form set the framework. For more than ten years we have filled it across the DACH region with software designed, developed and operated in Europe — from zero emission buildings and connected patient care to Industry 4.0 and AI agents on your own data, without dependency on non-European cloud providers.

EU Inc. and Digital Business Models in Europe

With EU Inc. — the "28th regime" proposed by the European Commission on 18 March 2026 — founders are meant to register a European company within 48 hours for no more than EUR 100 and operate across all 27 member states under one legal framework. The Commission is asking Parliament and Council to agree by the end of 2026. Digital business models built on this need software that is European from the start: GDPR-compliant, open to integration and free of single-vendor lock-in.

AI Agents for European Enterprises — GDPR-Compliant AI Without US Cloud Dependency

The EU AI Act, GDPR, and sector-specific regulations create a clear imperative: European enterprises need AI under European data sovereignty. Our custom AI software runs on open-source models deployed on your infrastructure or in GDPR-compliant European data centres, with no US cloud dependency and no vendor lock-in.

KMU.DIGITAL — SME Digitalization and Mittelstand Digital Solutions

SME digitalization is a decisive lever for Mittelstand competitiveness. KMU.DIGITAL in Austria, go-digital in Germany, and cantonal programmes in Switzerland make digital funding accessible from strategy through implementation, including data-sovereign AI deployments.

BUILD UP — Software for the European Sustainable Building Community

The BUILD UP initiative of the European Commission drives building sector digitalisation: renovation passports, EPBD data infrastructure, and heat pump integration into intelligent building automation. All require capable software for building energy data capture, decentralised energy control, and audit-proof ESG reporting.

Industry 4.0 — Smart Manufacturing Solutions for the DACH Region

Our Industry 4.0 solutions connect machine and sensor data with the business systems where decisions are made. From predictive maintenance to real-time production monitoring, we build integration software that turns machine data into actionable intelligence.

Zero Emission Buildings and the EPBD Directive — Software for Europe's Building Transformation

The revised EPBD (EU 2024/1275) sets binding milestones: member state transposition by May 2026, zero emission building standard for all new public buildings from January 2028, and all new buildings from January 2030. Existing buildings face binding renovation targets, while whole-life carbon assessment becomes mandatory for new construction from 2030.

  • Z-Wave Long Range, Zigbee and LoRaWAN for real-time capture and control across building portfolios
  • Offline-capable building control with GDPR-compliant cloud connectivity
  • Automated ESG and WLC reporting systems for low-carbon buildings

Digital Health — Software for Connected Patient Care

European healthcare digitises under the strictest regulatory conditions — MDR, GDPR, and Germany's Telematikinfrastruktur. We build eHealth solutions that integrate with hospital systems and secure data exchange between clinical systems, from DiGA-compliant health applications to telemedicine platforms.

Ready to start your Digital Europe project? Let's talk

About

About WIENtech — Your Partner for Custom Software Development and AI Agents in Vienna and the DACH Region

WIENtech is a software company and AI consultancy in Vienna with over ten years of experience delivering custom software development and enterprise AI solutions across Germany, Austria, and Switzerland. We manage the full software development life cycle — from requirements analysis and digitalization strategy through agile development to deployment and continuous improvement. Our data-sovereign AI capability extends this into autonomous AI agents that operate exclusively on your business data — no dependency on external providers. End-to-end software development from a single source: fewer vendor interfaces, faster time-to-market, and one technology partner who owns your project from first concept through live operations.

Core Competencies

  • Full-cycle software development — concept to go-live, maintenance, and continuous evolution
  • System integration — connect your ERP, CRM and legacy systems
  • FinTech and regulatory compliance — BaFin, FINMA, PSD2, GDPR-compliant platforms
  • Digital healthcare — MDR-compliant software, telemedicine, DiGA development
  • Smart home and building automation — Z-Wave Long Range, Zigbee, LoRaWAN, works offline, manufacturer-independent
  • AI agents for business — GDPR-compliant on your own data, open-source models, no external data sharing
  • Deep DACH market knowledge — regulation, SME digital funding, Mittelstand business culture

Technology Partner

Looking for an experienced partner for custom software or AI agents in the DACH region?

Let's talk — from strategy and implementation through live operations.

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Case Studies

References — Custom Software Development Projects Across the DACH Region

Four projects. Four industries. One methodology: full-cycle custom software development with deep domain expertise. From FinTech platform development and BaFin-relevant compliance to an application that works without internet for Deutsche Bahn AG and a central operational intelligence layer for omnichannel commerce.

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Petar Stanchev
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 IT consultant
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Custom Software, AI Agents or System Integration — Let's Talk About Your Project

Custom software development, system integration, AI for business, or digital transformation — whatever your challenge, we are ready. Schedule a free 30-minute consultation and we will discuss how WIENtech delivers for your organisation.

Contact Details
petar.stanchev@wientech.at +43 664 9144147 WhatsApp
Theresianumgasse 7/2/7
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