Westlaw
Legal research platform with case law, statutes and AI-assisted research
What is Westlaw?
Westlaw is Thomson Reuters' online legal research service providing case law, statutes, regulations, secondary sources and editorial enhancements such as KeyCite citation checking. Westlaw's AI-assisted research features answer research questions in natural language with links to authority. It is primarily focused on US and other common-law jurisdictions. It is used by law firms, corporate legal departments, courts and government.
Key facts
- Starting price
- Price not listed
- Pricing model
- Subscription
- Active users
- —
- Customers
- —
- Vendor employees
- 24,000
- Launched
- 1975
- Deployment
- Cloud (SaaS)
- Platforms
- Web
Strengths & considerations
Strengths
- Extensive library of case law, statutes and secondary sources
- Editorial tools such as citators aid legal validation
- AI-assisted research features
Considerations
- Subscription can be expensive for small firms
- Content outside the plan may incur extra charges
- Breadth of features takes time to master
- No free plan or free trial
Editorial summary based on public information; not a user review.
Industries & use cases
Industries served
Professional services
Government & public sector
Banking & capital markets
Technology, media & telecom
Cross-industry
Typical use cases
- AI-assisted legal research and document review
- Global indirect and direct tax compliance
- Regulatory change monitoring for compliance teams
Typical Deloitte services
- Tax technology implementation and integration
- Legal operations and AI adoption
- Regulatory compliance process automation
Editorial profile based on public information.
Features
✓AI features· Automation
✓Mobile app· Platform
✓Single sign-on (SSO)· Security
User reviews
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