What Is the AAU?
The Association of American Universities (AAU) is a consortium of leading North American research universities, founded in 1900. It currently comprises 71 members — 68 in the United States and 3 in Canada. The AAU was established to standardise graduate education and facilitate cooperation among the continent's most productive research institutions. Today it serves primarily as an advocacy organisation representing its members' interests in federal research policy and a quality signal for institutional prestige.
Unlike formal accreditation bodies, the AAU does not evaluate or certify academic programs. Instead, it functions as a peer-selected club: existing members vote on whether to invite new institutions, and the bar for admission is high. This self-selection mechanism means that AAU membership has become one of the most significant markers of research university status in North America, with institutions actively seeking membership as a validation of their research enterprise.
The AAU is distinct from — but overlapping with — other elite groupings. About half of the Ivy League's eight members are also AAU members. Many of America's great public Research University flagships — Michigan, Berkeley, UCLA, Wisconsin, Texas, Washington — are also members. This mixed public-private composition makes the AAU a broader and arguably more representative index of American research excellence than the Ivy League alone.
Membership Criteria
The AAU does not publish a single checklist for membership eligibility, but the criteria have evolved over time and the organisation has articulated the qualities it looks for. Members are evaluated on measures including: total research and development expenditure, the number of faculty receiving major awards and honours from recognised scholarly bodies, the number of National Academy members among faculty, doctoral degree production across disciplines, and citation impact of published research.
In practice, AAU membership correlates very strongly with research expenditure. In fiscal year 2023, most AAU members spent over $500 million on research annually, and the largest — Johns Hopkins, UCLA, Stanford, Michigan — exceeded $2–3 billion each. These expenditures fund everything from laboratory equipment and doctoral stipends to research staff and clinical trial infrastructure.
New members are rarely admitted — the AAU has grown from its original 14 members to 71 over 125 years, an average of fewer than one new member per year. The most recent additions (Nebraska in 2011, being the last admitted before a burst of invitations in 2022–2024) reflect the conservatism of the process. When institutions are invited, the decision follows years of internal monitoring of candidate institutions' research metrics.
The 71 Members
The AAU's membership spans both public and private institutions and all major regions of North America. The private members include all eight Ivy League universities plus MIT, Stanford, Chicago, Caltech, Duke, Johns Hopkins, Carnegie Mellon, Emory, and Vanderbilt, among others. The public members include the flagship campuses of most large state systems: the University of California campuses (Berkeley, Los Angeles, San Diego, Santa Barbara, Davis, Irvine), the University of Michigan, University of Wisconsin-Madison, University of Illinois Urbana-Champaign, University of Texas at Austin, University of Washington, and many others.
The three Canadian members — University of Toronto, University of British Columbia, and McGill University — are among Canada's most research-intensive institutions, and their inclusion reflects the AAU's founding in a continental rather than purely national frame. Canadian universities operate under different funding mechanisms and academic traditions but meet the same research excellence criteria as their American peers.
The AAU lost one member involuntarily: the University of Nebraska-Lincoln was asked to leave in 2011 following a review that found its research metrics no longer met membership standards — an extremely rare and significant action that illustrated the seriousness with which the AAU treats its criteria.
Impact on Funding
AAU membership carries real financial implications. Federal research funding agencies — the National Institutes of Health (NIH), the National Science Foundation (NSF), the Department of Defense, the Department of Energy — do not formally prefer AAU members in grant competitions. However, the correlations are strong: AAU institutions capture a very large proportion of major federal research grants, partly because their size and infrastructure make them competitive applicants, and partly because AAU membership signals the track record that review committees weigh when evaluating institutional capacity.
The AAU also directly lobbies Congress on research appropriations. During federal budget negotiations, the AAU coordinates member institution advocacy for increased NIH, NSF, and DOE research budgets, arguing that university research drives innovation, job creation, and national competitiveness. This lobbying is the organisation's most important concrete function; a well-organised consortium of 71 institutions employing hundreds of thousands of researchers has significant political weight.
Beyond federal grants, AAU membership affects philanthropic fundraising. Major donors — individuals and foundations — often use AAU membership as a screening criterion when identifying gift recipients. The signal quality of the brand means that AAU institutions enjoy advantages in the private philanthropic market as well as the public funding market.
Losing Membership
The possibility of being asked to leave the AAU distinguishes it from most honorary academic designations, which once conferred are permanent. The AAU has a formal review process for members whose research metrics decline significantly relative to peers. Beyond the Nebraska case (discussed above), several institutions have voluntarily withdrawn. Syracuse University resigned in 2011, and the University of Nebraska case involved a formal request to leave.
The threat of removal creates an incentive for members to maintain and grow their research enterprise, which critics argue can distort institutional priorities toward research metrics at the expense of undergraduate teaching, community engagement, or other missions. Defenders note that research excellence requires long-term institutional commitment that can easily erode without accountability mechanisms.
For institutions outside the AAU seeking membership, the pathway is patient and indirect: build research expenditure, hire high-profile faculty, cultivate doctoral programs, and wait for the AAU's monitoring process to identify improvement. Georgia Tech, UC Santa Cruz, and several other strong research universities have been discussed in connection with potential membership for years. The AAU's deliberate pace of expansion means that such institutions may wait decades even when their metrics are impressive.
AAU vs Ivy League
The relationship between the AAU and the Ivy League is a source of frequent confusion. The Ivy League is an athletic conference of eight private Northeastern universities. The AAU is a research consortium of 71 North American universities, public and private, geographically diverse. All eight Ivies are AAU members, but the AAU is vastly larger and more diverse in every other respect.
Crucially, several of America's most intellectually distinguished institutions are AAU members but not Ivy League: MIT consistently ranks among the world's top 2–3 universities and would dwarf most Ivies in research output and engineering prestige. Stanford, Caltech, the University of Chicago, and Johns Hopkins similarly represent research excellence that matches or exceeds most Ivy League members in their specialties.
For students and families trying to identify America's leading research universities, the AAU provides a more comprehensive and institutionally diverse guide than the Ivy League alone. The 71 AAU institutions represent the full breadth of American Research University excellence — from tiny, specialised Caltech (a few thousand students focused on science and engineering) to massive, comprehensive public universities like Michigan and UCLA serving tens of thousands of undergraduates alongside world-class research missions.