The Institute for Justice (IJ) is a non-profit libertarian public interest law firm in the United States. It has litigated five cases considered by the United States Supreme Court dealing with topics that included eminent domain, interstate commerce, public financing for elections, school vouchers, and tax credits for private school tuition. The organization was founded in 1991. As of June 2016, it employed a staff of 95 (including 39 attorneys) in Arlington, Virginia and five regional offices across the United States. Its 2016 budget is $20 million.