Legal Assistant · Reviewed June 26, 2026

Sandstone

Sandstone is an AI legal-operations platform that unifies a legal team’s documents, relationships, and workflows.

Pricing
Paid
Rating
4.82/ 5 · 85 reviews
Last reviewed
June 26, 2026
Channels
Sandstone product interface dashboard screenshot homepage view
01

Overview

Sandstone: AI for In-House Legal Teams

Sandstone is an AI platform for in-house legal departments that unifies the documents, counterparties, decisions, and institutional knowledge a legal team accumulates, then layers AI workflows on top. It handles intake and triage of legal requests across the systems a company already uses, runs agentic drafting and redlining, and maps the relationships and context behind each matter — so the legal team spends less time routing and searching.

It is positioned as legal relationship management: a system of record for how a legal department works, not just a contract repository.

Key Features

  • Unified repository of documents, companies, and decisions
  • AI intake and triage of legal requests across systems
  • Agentic redlining, drafting, and contract workflows
  • Counterparty context and relationship mapping
  • Cycle-time and capacity reporting
  • Integrations with Slack, Salesforce, ServiceNow, and Jira

Ideal Use Case

Sandstone fits in-house legal teams that field a high volume of requests and want to reduce manual intake, drafting, and knowledge-hunting. It suits general counsel and legal-operations leaders who need visibility into capacity and consistency across the department.

How Sandstone differentiates

Sandstone frames itself around legal relationship management — connecting documents, people, and decisions — rather than a single point tool for contracts. It connects to 50+ business systems for intake and is backed by a Series A led by Lightspeed.

FAQ

What is Sandstone? An AI legal-operations platform that unifies an in-house legal team's documents, relationships, and workflows.

Who is it for? In-house legal departments and legal-operations teams.

What can it automate? Intake and triage of requests plus agentic drafting and redlining.

Who backs Sandstone? A Series A led by Lightspeed Venture Partners.

tl;dr

Sandstone is an AI legal-operations platform that unifies documents, relationships, and workflows for in-house legal teams, backed by a Series A led by Lightspeed.

02

Why Use Sandstone

Rating
4.82
Across 85 verified reviews
Saved
240
By ToolDirectory readers
Pricing
Inquire
Paid · publisher-listed
Listed
Since 2026
Continuously re-reviewed by editors
Category
Legal Assistant
Primary listing
Verified by editors during the most recent review · ToolDirectory.AI
03

FAQ

Q.
A.
What is Sandstone?
An AI legal-operations platform that unifies an in-house legal team's documents, relationships, and workflows.
Q.
A.
Who is it for?
In-house legal departments and legal-operations teams.
Q.
A.
What can it automate?
Intake and triage of requests plus agentic drafting and redlining.
Q.
A.
Who backs Sandstone?
A Series A led by Lightspeed Venture Partners.
Sandstone product interface dashboard screenshot homepage view
04

User Reviews

4.82
Out of 5 · 85 ratings
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