# Westlaw

> Publicly sourced profile assembled by Optimly, in the Optimly AI Brand Index. Last refreshed 2026-10-04.

- **Business Profile:** https://optimly.ai/brand/westlaw
- **Dataset:** https://optimly.ai/brand/westlaw.json
- **Markdown:** https://optimly.ai/brand/westlaw/llms.txt
- **Official website:** https://westlaw.com
- **Slug:** westlaw
- **Categories:** ai-machine-learning, legal-technology

## Overview

- **Tagline:** The West Key Number System and a century of proprietary legal annotations that competitors cannot legally replicate.
Source: Brand's website (https://westlaw.com) · 2026-10-04

- **Description:** Westlaw is a premier online legal research service for lawyers and legal professionals. It provides access to a vast proprietary database of case law, statutes, administrative codes, and legal treatises, often enhanced by the West Key Number System. owned and operated by Thomson Reuters.
Source: Brand's website (https://westlaw.com) · 2026-10-04

## Offerings

- **Core capabilities:**
  - Legal research database
  - Westlaw Precision
  - AI-Assisted Research
  - KeyCite citation service.
Source: Brand's website (https://westlaw.com) · 2026-10-04

- **Pricing:** Enterprise/Custom
Source: Brand's website (https://westlaw.com) · 2026-10-04

## Audience

- **Target industry:** Law firms, corporate legal departments, government agencies, law schools.
Source: Brand's website (https://westlaw.com) · 2026-10-04

## Landscape

- **Competitors:**
  - LexisNexis
  - vLex (Fastcase)
  - Bloomberg Law
Source: Brand's website (https://westlaw.com) · 2026-10-04

Page last updated 2026-10-17.