S
Sandstone
AI · New York City, United States · Founded 2025
AI-native operating system for in-house legal teams MoreLess
Sandstone provides an AI-native operating system designed to convert institutional knowledge into agentic workflows for in-house legal teams. The company was co-founded by CEO Nick Fleisher, a former corporate legal consultant at McKinsey where he led the legal technology practice, and Jarryd Strydom, a lawyer with in-house counsel experience. The idea for the company originated from the founders' shared frustration with the inefficiencies faced by in-house legal departments, such as scattered information and repetitive tasks.
The platform serves as a centralized intelligence layer that integrates with existing business systems like Slack, Salesforce, and email to automate legal request intake, triage, and workflows. It employs AI agents that continuously learn from every interaction to build dynamic playbooks, allowing legal teams to manage and execute tasks from intake to completion. Key features include automated document management, intelligent contract review, and workflow optimization tools that help legal departments focus on higher-value strategic work. The system is designed to create 'context-in-motion' by connecting each workflow to its underlying business context, ensuring expertise is shared and applied consistently.
Sandstone caters to legal departments in companies ranging from fast-growing startups to global F500 enterprises across various industries, including software, finance, and manufacturing. The company's business model is based on providing this technology to streamline operations and reduce the administrative burden on legal professionals. In January 2026, the company announced a $10 million Seed funding round led by Sequoia Capital, with participation from numerous general counsels and legal sector experts, signaling strong investor confidence in its approach to solving long-standing issues in the legal tech space.
Keywords: legal tech, AI-native workflow, in-house legal teams, institutional knowledge management, agentic workflows, legal operations automation, contract review, legal AI agents, workflow optimization, centralized intelligence, legal playbooks, legal tech funding, Sequoia Capital, Nick Fleisher, Jarryd Strydom, legal request intake, document drafting automation, business context integration, legal tech platform, enterprise legal services
Company overview
Sandstone company information
The essential company record, classifications and operating signals in one place.
- Status
- Operational
- Founded
- 2025
- Headquarters
- New York City, United States
- Employees
- 43
- Open positions
- None listed
- Dealroom signal
- 85.5
Valuation & funding
Sandstone funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| SERIES A✓Equity / VC | Jun 2026 | $30M | $120M | SV Angel · Sequoia · Kearny Jackson · MANTIS | ↗ |
| SEED✓Equity / VC | Jan 2026 | $10M | $40M | SV Angel · Frederic Kerrest · MANTIS · The Chainsmokers | ↗ |
Financials
Workforce over time
Available workforce history. Financial fields without reported data are omitted.
| Year | Employees |
|---|---|
| 2026 | 43 |
Growth signals
Sandstone website traffic
Latest recorded traffic for Sandstone is 12K monthly website visits, up 9.1% over the last three months.
Comparisons
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Talent graph
Sandstone's talent
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Global footprint
Where Sandstone has talent and traffic
team presence
In the news
Latest news about Sandstone
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Market sentiment
What the market is saying about Sandstone
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