Thomson Reuters provides professional information and software to legal, tax, accounting and compliance professionals, including Westlaw legal research and various tax preparation and compliance software products. Its content and software are deeply embedded in how lawyers, accountants and compliance professionals do their daily work, since legal research and tax filing require authoritative, regularly updated content that's costly for a new entrant to replicate. The company has increasingly emphasized software and workflow tools alongside its traditional information and research content, building products that integrate directly into how professionals manage their work rather than just providing reference material. Thomson Reuters' revenue is largely subscription-based, giving it a fairly predictable, recurring revenue stream tied to the ongoing information and software needs of legal, tax and compliance professionals rather than one-time content purchases.