Onna is a cloud-native data collection and archiving platform focused on the ‘left side’ of the EDRM — identifying, defensibly collecting, and preserving data from modern collaboration platforms. Connects to 29+ cloud sources including Slack, Zoom, Google Workspace, Microsoft 365, Confluence, Jira, Salesforce, and ChatGPT. Originally founded in Barcelona, raised $50M+ from Atomico, Dawn Capital, Dropbox, and Slack Fund. Acquired by Reveal (K1 Investment Management portfolio) in May 2024, joining Logikcull (self-service eDiscovery), Brainspace (analytics), and Trial Director in Reveal’s product suite. EDRM’s 2024 M&A Highlights described the acquisition as a ‘standout deal.’ Product continues operating under the Onna brand. Core value proposition: defensible, targeted collection from cloud collaboration tools that legacy eDiscovery platforms struggle to reach — particularly Slack, where native JSON exports are unsearchable and miss modern data types (Canvas, Clips, Huddle recordings, emoji reactions). Official Slack Discovery API partner. BENlabs case study demonstrates $1.9M in avoided eDiscovery costs through proactive Slack archiving. HackerOne uses Onna to give IT and legal teams unified access to enterprise data. Enterprise-tier pricing (~$180K/year median per Vendr) — this is not a tool for small firms or solos. Within the Reveal portfolio, Logikcull serves the self-service/smaller team market while Onna targets enterprise corporate legal departments. Kelly Griswold serves as Chief Strategy Officer. Reddit sentiment from r/ediscovery practitioners is positive for collection capabilities, though post-acquisition threads show concern about Reveal’s integration strategy and reported layoffs.
Capabilities
Spans 6 product areas: Electronic Discovery, Legal Holds, Information , Governance, Compliance and Risk Management, Knowledge Management.
Workflow Coverage
Based on published feature listings, this tool maps to 3 workflow areas:
- Research & Analysis — Early Case Assessment
- Document Review & Management
- Filing & Compliance
Workflow mappings derived from published feature lists. Not independently verified.
What We Haven’t Verified
This page was assembled from publicly available information. Feature claims and workflow mappings are based on what the vendor and third-party listings publish — not hands-on testing or practitioner feedback.
Workflows
Based on practitioner evidence, Onna Ediscovery is used in these workflows:
What practitioners struggle with
Real frustrations from legal professionals — the problems Onna Ediscovery addresses (or should address). Sourced from practitioner reviews, Reddit threads, and case studies.
Documents scattered across email, shared drives, attorney desktops, and filing cabinets — paralegal can't find the key document when it's needed for court or a deposition
eDiscovery costs are insane — traditional vendors charge per-GB processing fees that can hit $100K+ for a single matter, making it economically impossible for small-to-mid firms to run proper discovery
Legal hold notices go out by email, half the custodians ignore them, nobody tracks acknowledgment — six months later a key custodian deleted relevant Slack messages and now there's a spoliation fight
When my litigation team receives 100,000 documents in discovery and the partner wants an early case assessment by Friday, I need to understand the key facts, players, and timeline before we've even started formal review — but right now the only option is throwing associate hours at it and hoping we surface the right documents
Company gets hit with a litigation hold and half the relevant data is in Slack threads, Zoom recordings, and Google Drive comments — the IT team exports Slack's native JSON dump and hands 4 million messages to legal, who can't search it, can't filter it, and has no way to identify which channels are relevant without reading every single thread
Where it fits in your workflow
Before Onna Ediscovery
Litigation hold triggered by legal department or outside counsel → IT/legal ops identifies custodians and relevant data sources (Slack, Zoom, Google Workspace, Microsoft 365, Jira, Salesforce) → Onna connects to these platforms via APIs (including official Slack Discovery API) and begins defensible collection/preservation.
After Onna Ediscovery
Collected data from Onna → culled and filtered using Onna's ECA tools → exported in review-ready format to Relativity, Reveal's review platform, or other review tools. Post-review production uses standard EDRM export formats. Within Reveal ecosystem: Onna (collection) → Reveal/Logikcull (review) is the intended workflow.
Integrations & hand-offs
Legal/outside counsel → IT/legal ops for hold implementation and collection (Onna). Onna → review platform (Relativity, Reveal, Logikcull) for document review. Onna → litigation team for ECA results. Onna primarily operated by IT/legal ops teams, not attorneys directly — attorneys consume the downstream output. Enterprise Success Lead (Allison Keane, Onna) acts as trusted advisor for implementation planning.
Also used by similar teams
Community Data
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