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Alabama

University of Alabama–Birmingham

University of Alabama–Tuscaloosa

University of South Alabama

Arizona

Arizona State University

University of Arizona

California

California Institute of Technology

California Polytechnic State University

California State University–East Bay

California State University–Fresno

California State University–Sacramento

Harvey Mudd College

Lawrence Berkeley National Laboratory

Lawrence Livermore National Laboratory

San Diego State University

San Francisco State University

SLAC National Accelerator Laboratory

Stanford University

University of California–Berkeley

University of California–Davis

University of California–Irvine

University of California–Los Angeles

University of California–Riverside

University of California–San Diego

University of California–Santa Barbara

University of California–Santa Cruz

University of San Diego

University of Southern California

University of the Pacific

Westmont College

Colorado

Aspen Center For Physics

Colorado School of Mines

Colorado State University

Fort Lewis College

University of Colorado–Boulder

University of Colorado–Denver

Connecticut

University of Connecticut

Yale University

District of Columbia

Catholic University of America

National Academy of Sciences

Naval Research Laboratory

Universities Research Association Inc

Delaware

University of Delaware

Florida

Florida Institute of Technology

Florida State University

University of Florida

Georgia

Georgia Tech

Kennesaw State University

Hawaii

University of Hawaii

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Idaho

Boise State University

Iowa

Ames Laboratory

Iowa State University

Luther College

University of Iowa

Illinois

Argonne National Laboratory

Fermi National Accelerator Laboratory

Illinois Institute of Technology

Loyola University Chicago

Northern Illinois University

Northwestern University

University of Chicago

University of Illinois at Chicago

University of Illinois at Urbana–Champaign

Indiana

Indiana University

Purdue University

Purdue University Northwest

University of Notre Dame

Kansas

Kansas State University

University of Kansas

Wichita State University

Kentucky

University of Louisville

University of Kentucky

Louisiana

Louisiana State University

Louisiana Tech University

Massachusetts

American Association of Variable Star Observers

Boston University

Brandeis University

Harvard University

Massachusetts Institute of Technology

Northeastern University

Smithsonian Astrophysical Observatory

Tufts University

University of Massachusetts–Amherst

Wellesley College

Maryland

Goucher College

Johns Hopkins University

University of Maryland

University of Maryland Baltimore County

Maine

Bowdoin College

Michigan

Lawrence Technological University

Michigan State University

Michigan Technological University

Oakland University

University of Michigan–Ann Arbor

Wayne State University

Minnesota

Bethel University

University of Minnesota–Duluth

University of Minnesota–Twin Cities

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Missouri

University of Missouri

Washington University

Mississippi

Jackson State University

University of Mississippi

Nebraska

University of Nebraska-Lincoln

New Hampshire

Dartmouth College

University of New Hampshire

New Jersey

Institute For Advanced Study

Princeton University

Rutgers University

New Mexico

Los Alamos National Laboratory

Sandia National Laboratories

University of New Mexico

Nevada

University of Nevada–Reno

New York

American University of Beirut

Barnard College

Brookhaven National Laboratory

Columbia University

Cornell University

CUNY City College

CUNY Graduate School University Center

CUNY Herbert H. Lehman College

CUNY York College

Manhattan College

New York Institute of Technology

New York University

Rensselaer Polytechnic Institute

Siena College

SUNY at Buffalo

SUNY at Stony Brook

SUNY Polytechnic Institute

Syracuse University

University of Rochester

North Carolina

Duke University

North Carolina State University

University of North Carolina at Chapel Hill

Ohio

Case Western Reserve University

Kenyon College

Oberlin College

Ohio State University

Ohio University

University of Cincinnati

Oklahoma

Oklahoma State University

University of Oklahoma

Oregon

Oregon State University

University of Oregon-Eugene

Pennsylvania

Bucknell University

Carnegie Mellon University

Drexel University

Haverford College

Lafayette College

Lehigh University

Pennsylvania State University

Temple University

University of Pennsylvania

University of Pittsburgh

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Puerto Rico

University of Puerto Rico Mayaguez

Rhode Island

Brown University

South Carolina

University of South Carolina

South Dakota

Augustana College

South Dakota School of Mines & Technology

South Dakota Science and Technology Authority

University of South Dakota

Tennessee

Oak Ridge National Laboratory

University of Tennessee

Vanderbilt University

Texas

Baylor University

Sam Houston State University

Southern Methodist University

Texas A&M University

Texas A&M University-Corpus Christi

Texas Tech University

The University of Texas at Arlington

The University of Texas at Austin

The University of Texas at Dallas

The University of Texas Rio Grande Valley

University of Houston

William Marsh Rice University

Utah

Brigham Young University

University of Utah

Utah State University

Virginia

College of William and Mary

George Mason University

James Madison University

Old Dominion University

Thomas Jefferson National Accelerator Facility

University of Virginia

Virginia Polytechnic Institute and State University

Vermont

Middlebury College

Washington

Pacific Northwest National Laboratory

University of Washington

Wisconsin

Marquette University

University of Wisconsin–Eau Claire

University of Wisconsin–Madison

Wyoming

University of Wyoming