RIA is the premier provider of advanced research, practice materials, and compliance tools for tax, accounting and corporate finance professionals. For more than 65 years, RIA has delivered accurate, insightful and accessible research and productivity-enhancing solutions, through innovative technology and the expertise of leading industry authors. Headquartered in New York City with offices throughout the U.S., RIA is a business unit of The Thomson Corporation, and was formed with the joining of Research Institute of America (now known as RIA), Computer Language Research (CLR) and Warren, Gorham & Lamont (WG&L).

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RIA features titles by Warren, Gorham & Lamont (WG&L), one of the nation's most respected providers of analytical and legal taxation information. WG&L treatises, written by such expert legal interpreters as Boris I. Bittker, James S. Eustice and Lawrence Lokken, are frequently cited in federal, state and Supreme Court decisions.

Fiducial members can take advantage of the discounts and services provided through RIA and Fiducial.