AI for law firms. Client data stays with you.
Contract analysis, research and pleading drafts with leading AI models from several providers, while client data is stored in data centres in Switzerland, AI processing runs in the EU or Switzerland and nothing flows into model training.
Why law firms hesitate over AI.
The concerns are legitimate, and they can be addressed technically.
Professional secrecy
Legal professional privilege sets narrow limits on disclosing client confidences: § 203 of the German Criminal Code and § 43a BRAO in Germany, § 9 RAO in Austria, Art. 321 of the Swiss Criminal Code. Public AI tools that train on user data are out of the question.
Shadow IT
Staff are already using private AI accounts, with no control over which client data leaves the firm.
Pressure on efficiency
Clients expect faster answers at predictable cost; firms that don't speed up routine work lose margin.
What law firms get done with Custodos.
Six tasks from daily practice, plus everything every company has to do: correspondence, minutes and research.
01Contract review
Identify clauses, flag deviations from your own standard, summarise risks, as a first pass for your lawyers to review.
02Knowledge research
Query internal opinions, precedents and briefing notes: answers rest on the firm's own knowledge base.
03Pleading drafts
First drafts for submissions, statements and client correspondence, in the firm's structure and tone.
04Due diligence
Work through large document sets, prioritise anomalies and prepare findings lists for the deal team.
05Case file summaries
Condense thick case files to the essentials, for handovers, partner briefings or the next client meeting.
06Legal translation
Move contracts and correspondence between German, French, Italian and English, without a separate translation tool.
- Designed for duties of confidentialityDesigned for professions bound by statutory secrecy: § 203 of the German Criminal Code, § 9 RAO in Austria, Art. 321 of the Swiss Criminal Code. The assessment in each individual case remains with the firm.
- FoundationDesigned for the GDPR and the revFADP: your data is stored in Switzerland, AI processing runs in the EU or in Switzerland, as you choose. Inputs and documents are never used to train AI models.
- DPA & activity logA data processing agreement is included; admin actions are recorded in the activity log, without the content of requests.
Custodos provides the technical preconditions for handling your data confidentially. The legal assessment in each individual case remains with your organisation.
How your firm gets started.
- 01
Set up the workspace
Define roles and permissions, connect SSO, without a drawn-out IT project.
- 02
Add your knowledge
Add precedents, briefing notes and templates as the basis for firm agents.
- 03
Onboard the team
Start with proven prompts, from the secretariat to the partners.