Sandstone focuses on the needs of in-house legal departments at small and mid-sized businesses, offering a platform that aggregates work from intake channels like Slack, email, and Jira and uses AI to route and triage requests. Users can build custom workflows on the platform to execute tasks such as drafting, reviewing, and providing legal analysis. The company's approach emphasizes relationship management and workflow automation tailored to the specific demands of in-house legal work rather than general legal reasoning systems. Sandstone positions itself as a vertical, specialized AI provider for legal teams and faces competition from both legal-focused startups and larger AI labs expanding into legal tools. The company recently raised a $10 million seed round in January and followed with a $30 million Series A led by Lightspeed Venture Partners, bringing disclosed funding to $40 million.

Total raised

$40M

Funding rounds

2

Latest round

Series A

Latest activity

Jun 2026