Sandstone, a startup focused on AI tools for corporate legal departments, announced a $30 million Series A funding round in June 2026. The round was led by Lightspeed Venture Partners, with participation from existing investors including Sequoia, Mantis VC, SV Angel, Operator Partners, Kearny Jackson, Daybreak Ventures, Litquidity Ventures, and others.
The raise comes just six months after a $10 million seed round in January 2026, which was led by Sequoia. Sandstone’s initial target customers are legal departments at small and mid-sized businesses.
Rather than building legal reasoning tools aimed at private law firms — the focus of competitors like Harvey and Legora — Sandstone is targeting the workflow and operational challenges specific to in-house legal teams. Co-founder and COO Jarryd Strydom described the problem the platform addresses: “They open up their laptop in the morning, they see all the work that’s come in through different intake channels, whether that’s Slack messages, emails, Jira. AI helps them route and triage that work appropriately, and then they can build custom workflows on top of our platform to actually execute work, whether that’s drafting, reviewing, or providing legal analysis.”
The platform centers on relationship management and workflow automation tuned to in-house legal work, rather than legal reasoning systems. Strydom cited Lightspeed’s thesis on the approach: “They really believe in highly specialized vertical AI, because it takes a granular understanding of workflows to really nail down how AI can help.”
Sandstone will face competition not only from other startups but also from major AI labs moving into the legal space. Anthropic has been expanding its Claude for Legal offering, adding tools for case law searches and deposition prep as recently as May 2026, which may present a challenge as Sandstone scales.
Source: TechCrunch