Sandstone raises $30M to automate in-house legal workflows

On Tuesday, Sandstone announced it has raised $30 million in Series A funding—the first significant round of venture capital financing for a startup. The round was led by Lightspeed Venture Partners, with participation from existing investors including Mantis VC, SV Angel, Operator Partners, Kearny Jackson, Daybreak Ventures, and Litquidity Ventures. Unlike many artificial intelligence startups in the legal sector that build tools for private practice law firms, Sandstone is focusing its product on the in-house legal departments within small and mid-sized businesses. This distinction is central to Sandstone’s strategy, as it targets the specific operational challenges faced by internal corporate legal teams rather than external law firms.

The funding round comes just six months after Sandstone raised a $10 million seed round—an early-stage investment—in January, which was led by Sequoia. The startup’s progression highlights a shift in product strategy compared to other legal AI companies. Instead of focusing on legal reasoning, Sandstone’s platform is designed for relationship management and workflow automation. This allows the company to address the daily administrative and organizational tasks that occupy in-house legal teams.

According to Jarryd Strydom, Sandstone’s co-founder and chief operating officer, the software helps in-house teams manage their daily intake. “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,” Strydom said. He explained that AI then helps route and triage that work appropriately, allowing users to build custom workflows on top of the platform to execute tasks such as drafting, reviewing, or providing legal analysis.

This workflow-centric approach contrasts with competitors like Harvey and Legora, which have raised eight-figure funding rounds to focus on legal reasoning systems. Strydom noted that Lightspeed Venture Partners backed Sandstone due to a belief in highly specialized vertical AI—artificial intelligence specialized for a specific industry or workflow—because nailing down how AI can help requires a granular understanding of those workflows. Sandstone also faces competition from other AI developers entering the legal sector. In May, Anthropic expanded its Claude for Legal offering by adding new tools for case law searches and deposition preparation.

Why it matters

Sandstone is targeting an overlooked segment of the legal market—in-house legal teams—by focusing on workflow automation and relationship management rather than the legal reasoning systems prioritized by competitors like Harvey and Legora.