Product

The law firm's brain,
in one system.

Matters, deadlines, time, expenses, invoices and the WhatsApp copilot — all on your infrastructure, every answer cited.

The winning USP

Subsumio Copilot — right inside WhatsApp

Book time, file documents, query matters — from your phone, no app switch, no training. The copilot understands the matter and files everything for confirmation in the brain.

Time & expenses in seconds

"Time 0.5h matter Müller, call" → captured, linked to the matter, one tap to confirm.

Receipt photo → right matter

A document or photo with the case reference in the caption lands in the vault, audit-ready.

Voice note on the go

Dictate after the hearing — transcribed and attached to the matter before you're back at the office.

Subsumio Copilot

online

Time 0.5h matter Müller, opposing-counsel call
✓ Time entry 0.5 h · matter Müller · call Confirm?ConfirmEdit
Ask: where do the opposing party's statements contradict? Opposing_Brief.pdf
3 contradictions found — with sources (p. 14, B7, protocol K.). Answer filed in the matter.

Workflow view

Subsumio
Matter memory with procedural discipline

Meetings, emails, PDFs and tasks flow into a permission-aware brain. Subsumio links the context, keeps the source trail visible, and routes the next action to the right workspace.

01Capture
02Connect
03Answer
Subsumio workspace
What changed since the last meeting?
Board notes
Email thread
Signed PDF
Context graph
Matter
Person
Doc
Risk
Task

3 material changes found. Two are low risk, one needs review before the next deadline.

Permission-awareRouted to workspace

subsumio.attachAskCited

subsumio.attachAskCitedSub

subsumio — dashboard
live
All capabilities

Everything a firm needs — in one brain

Self-hosted or EU cloud. Every answer cited. Every feature on your own infrastructure.

Deadline control (ZPO & BGB)

Computes statutory and appeal deadlines with correct month arithmetic (§ 188 BGB) and weekend roll-forward (§ 222 ZPO) — with the governing statute cited. A daily email digest flags overdue and critical deadlines.

WhatsApp matter copilot

Lawyers can send time entries, notes, tasks, deadlines, expenses, questions, PDFs, photos and voice notes from their phone. Subsumio stores them in the brain and links media to the right matter when the caption contains the case reference.

Document vault with durable storage

Matter documents, WhatsApp media and uploaded evidence are kept in the vault with hash, source, size and storage metadata — local for self-hosting, Vercel Blob/S3-style cloud storage for hosted plans.

beA integration

German electronic legal mail (beA XML export) lands straight in the case file: sender, case reference and attachments captured and searchable — no copy-paste.

Conflict check (§ 43a BRAO)

Screens every new client or opposing party server-side against the entire case base and flags conflicts of interest before the mandate is accepted.

Time, expenses, invoices & DATEV

Book minutes by lawyer/activity, capture billable expenses, create invoices from open work, mark billed entries and export a DATEV-ready accounting file.

Case law DE & AT

Live search across openlegaldata/BGH (DE) and RIS-OGD (AT) — relevant judgements land in the brain, citable, in one click.

Your server, your jurisdiction

Self-host the full engine on firm hardware with local storage, or choose EU-hosted cloud with DPA and durable object storage. Client data never leaves your control.

Offline-first daily work

Cases, contacts, deadlines, invoices, vault, contracts and research keep local caches and queue changes until the cloud brain is reachable again.

Contradiction detection

The Dream Cycle surfaces conflicting statements across briefs, exhibits and protocols — with citations.

Every claim, sourced

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

Matter-level isolation

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

Start with one matter.

Run one closed matter as a pilot — no client data needs to leave your building.

Sigmabrain — the brain your firm never had