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Legal research

Westlaw for large law firms Explore the Thomson Reuters Westlaw or Westlaw Edge plans that meet your firm's needs and budget

See our plans for large and medium law firms

Thomson Reuters Westlaw is the industry's premier online legal research service, recognized by legal professionals year after year. Learn more about how Westlaw can help your firm work smarter, more efficiently, and with total confidence.

Premier Plus plan

Our most popular and inclusive Thomson Reuters Westlaw plan. Premier+ is optimized to meet your individual needs, and includes comprehensive litigation materials and best-in-class transactional resources for litigators handling complex matters. Remove the clutter and experience more comprehensive and focused research.

Premier Plus Edge

Premier+ Edge elevates your research so you can work, think, and deliver faster. In addition to the comprehensive litigation and transactional materials provided by Premier+, you will have access to Litigation Analytics, and WestSearch Plus – only available on Westlaw Edge. Be Sure. Be Strategic. Be Responsive.

Premier Plus plan content

Administrative Decisions and Guidance
Alert Management*
Arbitration materials
Business law materials
Case Evaluator
Company Investigator
Court Wire*
Deadline Assistant
Expert Materials
Intellectual property materials
International materials
Jury verdicts and settlements

Legislative history
Matter Benchmark Reports
Native American law
PeopleMap Premier
Proposed and adopted regulations
Proposed and enacted legislation
Secondary sources
Statutes and court rules
Trial court documents
Trial court orders
Trial Transcripts and Oral Arguments
West Key Number System
Westlaw Form Builder
Westlaw Practitioner Insights*
West Report Images

* Dockets: Does not include Tracks or PDFs; Court Wire: Includes up to 500 alerts; Alert Management Center: Includes up to 10,000 alerts.

Expand your capabilities

Add greater depth to your plan with any or all of the featured content modules

Business Law Materials

Access the latest precedent examples, M&A deals, and one of the largest collections of private placements, offering memorandum, and sections searchable filings.

International Materials

Unlock a vast global library of the world's best legal news and business information, Caselaw, legislation, directories, and more.

PeopleMap Premier

Access all available current and historical information about a person, including assets, adverse information, business and employment relationships, and much more.

Company Investigator

Eliminate hours of research with business profiles, including general corporate information, subsidiary data, legal disputes, and more.

Alert Management Center

Keep your legal organization aware of new developments and changes in the law in a timely and efficient manner.

Intellectual Property Materials

Feel confident with premier Westlaw IP content, along with cases, court documents and filings, and much more.

Westlaw is preferred 2-1 over Lexis Advance®


See how Westlaw works 

Experienced attorney-editors get to work the moment a court opinion is issued or a law is passed to help ensure you don't miss anything.

Ready to try Westlaw?

See what a difference Thomson Reuters Westlaw can make in your firm