Cerulean
London, United Kingdom
What it is
Cerulean is a web-based bundle, hearing and evidence platform for high-value litigation and arbitration. Cerulean Systems Ltd says it is in private preview for selected chambers and tribunals. Its three-zone workspace is designed for hearing days and bundles containing tens of thousands of documents. Users can ask plain-English questions about a matter bundle and receive answers grounded in paragraphs, with citations linking to source passages. Presentation mode sends pages, paragraphs or excerpts to a tribunal with one keystroke. Live transcripts are threaded into the bundle, and reading itineraries can stay private to counsel or be shared in the common record. The platform supports exhibit management and evidence annotation, and lists Microsoft Word, SharePoint and NetDocuments integrations provisioned per matter. Each matter is isolated in its own tenant; Cerulean says client documents and answers are not used for training. Hosting is in UK data centres, with region-locking available on request. Security listings include SAML SSO, enforced MFA, matter-scoped roles, IP allow-listing, audit logging and verified erasure.
For and against
For
- Paragraph-grounded answers include source citations
- Presentation mode sends excerpts to tribunals
- Live transcripts connect to matter bundles
- Integrates with Word, SharePoint and NetDocuments
- Matter isolation and UK hosting options
Against
- Currently in private preview
- Pricing is available on request
- Web platform only
- Connectors are provisioned per matter
The verdict
Cerulean brings bundle reading, cited AI retrieval, transcript threading and tribunal presentation into one web platform. Its private-preview status and request-based pricing are important considerations for prospective users.
Who it suits
Cerulean is aimed at counsel and tribunals handling high-value litigation and arbitration. It may suit teams working with large bundles, transcripts and formal evidence presentation.
On the record
- Access controls
- Security controls include SAML single sign-on, enforced multi-factor authentication, matter-scoped roles and IP allow-listing.ceruleansystems.com · read 8 Oct 2026
- AI data handling
- Cerulean says client documents are never used to train models and answers are never retained for training.ceruleansystems.com · read 8 Oct 2026
- AI retrieval
- Users can ask questions in plain English and receive paragraph-grounded answers with citations linking to source passages.ceruleansystems.com · read 8 Oct 2026
- AI search
- Users can ask questions about a matter bundle in plain English and receive paragraph-grounded answers with citations linking to source passages.ceruleansystems.com · read 8 Oct 2026
- Audit and erasure
- Actions are logged with cryptographic integrity, and the page describes verified erasure across live stores, caches and derived indexes.ceruleansystems.com · read 8 Oct 2026
- Availability
- The site says Cerulean is in private preview for selected chambers and tribunals.ceruleansystems.com · read 8 Oct 2026
- Certifications
- The security page lists SOC 2 Type II as maintained, ISO 27001 and ISO 42001 as certified, and UK and EU GDPR compliance.ceruleansystems.com · read 8 Oct 2026
- Company
- The maker is Cerulean Systems Ltd, registered in England and Wales, with an address at 15 Essex Street, London WC2R 3AA.ceruleansystems.com · read 8 Oct 2026
- Data hosting
- Cerulean says it is hosted in UK data centres and can be region-locked on request.ceruleansystems.com · read 8 Oct 2026
- Document review
- Its three-zone reading workspace is built for hearing days and bundles containing tens of thousands of documents.ceruleansystems.com · read 8 Oct 2026
- Evidence presentation
- Presentation mode lets users push pages, paragraphs or excerpts to the tribunal in a single keystroke.ceruleansystems.com · read 8 Oct 2026
- Founders
- The site identifies Peter Brogden and Simon Hughes KC as Cerulean co-founders and practising lawyers.ceruleansystems.com · read 8 Oct 2026
- Integrations
- The site lists Microsoft Word, SharePoint and NetDocuments integrations, with connectors provisioned per matter.ceruleansystems.com · read 8 Oct 2026
- Product
- Cerulean describes itself as an AI-native bundle, hearing and evidence platform for high-value litigation and arbitration.ceruleansystems.com · read 8 Oct 2026
- Security
- Each matter is isolated in its own tenant, and client documents are not used to train models.ceruleansystems.com · read 8 Oct 2026
- Support
- The security page says customers have a named security contact and can direct questions to the founding team.ceruleansystems.com · read 8 Oct 2026
- Transcripts and itineraries
- Live transcripts are threaded into the bundle, and reading itineraries can stay private to counsel or be shared in the tribunal's common record.ceruleansystems.com · read 8 Oct 2026
- Who it is for
- The site describes the product as built for counsel and tribunals handling high-value litigation and arbitration.ceruleansystems.com · read 8 Oct 2026
