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AINew: 5-layer quality architecture for cited answers
Subsum•ioLEGAL INTELLIGENCE
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Subsum•ioLEGAL INTELLIGENCE

AI legal software that never forgets — the firm brain for lawyers in Europe.

Your data, your keys. Self-hosted on your hardware or our EU cloud with DPA — GDPR-ready, end-to-end encrypted, zero training on your data.

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  • For Law Firms
  • For Solo Lawyers
  • For In-House
  • For Mid-Sized Firms
  • For Tax Advisors

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© 2026 Subsumio · AI legal software & legal intelligence for law firms

EU cloud or self-hosted · GDPR-ready · AVV included · § 203 StGB compliant

For established law firms

Your firm's knowledge,
finally answerable.

Subsumio turns decades of matters, briefs and deadlines into one queryable brain your whole team can ask — every answer cited, confidentiality by architecture.

What keeps managing partners up at night

Knowledge silos

Each lawyer's case knowledge lives in their head and their inbox. When someone leaves, years of context walk out the door.

Deadline risk

Statutory deadlines calculated by hand or spreadsheets. One missed Notfrist and the malpractice claim is real.

US clouds are a non-starter

Client files in a US-hosted AI tool? Your duty of confidentiality says no — and so do your clients.

Built for firm-wide impact

Shared institutional memory

Every matter, brief, email and deadline indexed and queryable — by every lawyer in the firm. New associates get up to speed in minutes, not months.

Deadline control (ZPO & BGB)

Statutory and appeal deadlines computed with correct month arithmetic and weekend roll-forward — with the governing statute cited.

Conflict check (§ 43a BRAO / § 10 RAO / BGFA)

Every new client or opposing party screened server-side against the entire case base before the mandate is accepted. Covers § 43a BRAO (DE), § 10 RAO (AT) and BGFA (CH).

Matter-level isolation

Scoped access per matter and per user — fuzz-tested, zero leaks between cases or teams.

WhatsApp matter copilot

Lawyers book time, file documents, send voice notes from their phone. Everything lands in the right matter.

Time, expenses, invoices & DATEV

Book minutes by lawyer/activity, create invoices from open work, export DATEV-ready accounting files.

Your server, your jurisdiction

Self-host on firm hardware or choose EU cloud with DPA. Client data never leaves your control.

Every claim, sourced

Answers cite the exact pages they come from. Verify in one click before anything goes into a brief.

Engine-grade retrieval, not a chat wrapper

The retrieval core benchmarks at 99.8% Recall@8 on LongMemEval (500 questions) with hybrid search and a knowledge graph — running on infrastructure your IT governs end to end.

Questions, answered

A pilot with one closed matter takes under an hour. Full firm rollout typically takes a week — your team indexes existing matters at their own pace.

Yes. The full engine self-hosts on firm hardware with local storage. Enterprise plans support on-prem with your own LLM gateway.

Self-hosted means data never leaves your infrastructure. Hosted plans come with EU hosting and a DPA. We speak your data protection officer's language.

Harvey is excellent — and runs on someone else's cloud and model. Subsumio gives you the same calibre of synthesis on infrastructure YOU control, with a WhatsApp copilot your lawyers use daily.

Not quite the right fit?

See the solution

For Solo LawyersFor In-HouseFor Mid-Sized Firms

Start with one closed matter as a pilot.

No client data needs to leave your building. Three minutes to first answer.

Subsumio for Law Firms — AI legal software with citations — Subsumio