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AI agencies in Leipzig compared
Between pilot project and production, most AI initiatives fail. This overview shows AI agencies and AI consultancies in Germany that bring language models, automation, and machine learning into real systems. Comparison criteria: models used, hosting, compliance proof, and minimum budget.
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Guide
Consulting and implementation are two different things
AI consulting assesses whether and where artificial intelligence actually creates value in your company: which use cases make sense, what the data situation looks like, what effort is realistic, and who will operate the result afterward. An AI agency then builds the solution (language model integration, knowledge assistants, document processing, forecasting models, image recognition) and keeps it running. Many providers do both, which is practical, as long as the consulting isn't just a pretext for the development contract.
The categories on this page deliberately separate the disciplines: strategy and consulting, LLM integration, AI agents and automation, RAG systems, machine learning, computer vision, and EU AI Act compliance.
Five things that decide success or failure at mid-sized companies
Model independence comes first. Reputable agencies work with several providers (Claude, GPT, Gemini, Mistral, and also open-weight models) and choose based on the task, cost, and data protection. An agency that only knows one model will happily sell it to you for every task. Profiles show which models and frameworks an agency actually works with.
Next comes data protection: where is your data processed? EU hosting, a data processing agreement (DPA), and assurance that your data isn't used for training should be settled before the project starts. The "EU hosting" proof on techagenturen.de is verified and filterable.
The EU AI Act has been relevant since 2025 and tiers obligations by risk class. An agency that can classify your use case itself and supplies the necessary documentation saves you a fair amount of effort later. The "EU AI Act readiness" proof marks this documented competence.
Fourth: evaluation instead of demo. A pilot without metrics is, at best, a well-rehearsed video. Ask for figures: answer quality on your own data, error rates, cost per query.
And finally, operations afterward. Models change, prompts age, costs fluctuate with volume. Clarify before the project starts who takes over monitoring, updates, and cost control after go-live. This point tends to get overlooked in proposals.
Budget for AI projects
AI agencies charge similarly to classic software agencies, usually between €120 and €200 per hour, with ML specialists toward the upper end. A strategy workshop with use case assessment costs €4,000 to €15,000. A pilot, say a knowledge assistant on your own documents, costs €15,000 to €50,000 and takes six to twelve weeks. A production integration with operations, monitoring, and compliance documentation runs €50,000 to €200,000. Custom ML models for forecasting or image recognition start at €60,000, heavily dependent on the data situation.
On top come ongoing model costs: for language models, depending on volume, anywhere from a few hundred to several thousand euros a month. A good agency works through this math before the project, not after.
What companies actually use AI for today
Knowledge assistants over internal documents, automated processing of emails, invoices, or applications, chat and voice assistants in customer service, forecasting demand, failures, or payment behavior, quality inspection with image recognition in production, and increasingly AI agents that independently carry out multi-step processes in existing systems.
Ranking, score, request
The ranking follows the score, built from ratings, verified proof, verification, completeness, and activity, never a paid plan. In the search tool, filter by models like Claude or OpenAI, by frameworks like LangChain, by EU hosting, or by EU AI Act readiness. Or describe your project in a request and receive quotes from up to three matching agencies.
Frequently asked questions
AI agencies: questions and answers
What does an AI agency cost?
€120 to €200 per hour is common in Germany. A strategy workshop costs €4,000 to €15,000, an LLM pilot €15,000 to €50,000, a production integration with operations €50,000 to €200,000. Work out the ongoing model costs in advance, they come on top of the project budget.
What's the difference between AI consulting and an AI agency?
Consulting assesses use cases, data situation, risk, and operating model before any development happens. The agency then builds and operates the solution. Many providers offer both. Make sure the consulting stays open-ended and isn't just preparing the ground for its own development work.
Can AI use be GDPR-compliant at all?
Yes, if data processing, hosting, and the data processing agreement are properly arranged: EU hosting or on-premise operation, a DPA with the model provider, no use of your data for training, data minimization in prompts. Agencies with the verified "EU hosting" proof demonstrably meet the hosting requirement.
What does the EU AI Act mean for my project specifically?
It tiers AI systems by risk and requires documentation, transparency, and human oversight depending on the class. Most mid-sized company applications fall into low risk classes but still need a classification and some basic obligations. Agencies with "EU AI Act readiness" deliver this classification directly.
Claude, GPT, or an open-source model – what fits my case?
It depends on the task, data protection, and cost. Claude and GPT deliver the highest quality on demanding language tasks, open-weight models like Mistral or Llama can run on your own infrastructure when data can't leave the building, and for high volumes with simple tasks, smaller models are often the more economical choice. A model-independent agency makes this decision based on an evaluation on your data, not out of preference.