OnBox Law provides on-premise legal intelligence for law firms, running on the computers they already own. Its central promise is data sovereignty: documents, emails, recordings and AI processing remain on the firm’s hardware rather than being sent to a cloud service or third-party AI vendor. Firms control any connections the system makes, along with recording retention and deletion.

The platform combines several legal-work tools. Its AI assistant, David, helps organize matter files, build case timelines, sort correspondence, summarize meetings and identify next steps. It can also draft court-ready filings, interrogatories and answers using a firm’s own case records and precedent, with formatting suited to the relevant court. For discovery and production, OnBox Law identifies potentially privileged or sensitive passages, supports redaction, and generates and maintains privilege logs for attorney review.

OnBox installs on a firm’s existing machines, with no new hardware required. The company offers demonstrations and describes its pricing as a flat monthly rate per attorney seat, with all features included and no token-based tiers.