The following US libraries had expressed interest in SCOAP³ participation during a call in 2008-09, and the historical list is reproduced here. As of 2013, the US SCOAP³ team launched its new outreach call, soliciting partners for the "go-live" of January 2014. For further information and participation, see the SCOAP³USA web site and write to the National Contact Person.

» Alphabetical order

• University of North Texas, 28 September 2010
• NASA Jet Propulsion Laboratory, 30 June 2010
• James Madison University, 28 June 2010
• West Virginia University, 19 April 2010
• State University of New York at Stonybrook, 12 April 2010
• The Bridge (Carleton College, St Olaf College), 05 April 2010
• Tufts University, 22 February 2010
• Vanderbilt University, 01 February 2010
• University of Nevada, Las Vegas, 29 January 2010
• Allegheny College, 29 January 2010
• Wayne State University, 28 January 2010
• Bowdoin College, 27 January 2010
• University of Alabama at Birmingham, 27 January 2010
• Auburn University, 25 January 2010
• Southern Illinois University Carbondale, 21 January 2010
• University of Maryland, 19 January 2010
• Rockefeller University, 13 January 2010
• Trinity University, 11 January 2010
• University of Notre Dame, 11 January 2010
• Pennsylvania State University, 07 January 2010
• Michigan State University, 21 December 2009
• Indiana University, 18 December 2009
• Rensselaer Polytechnic Institute, 16 December 2009
• Creighton University, 15 December 2009
• Macalester College, 14 December 2009
• University of Kentucky, 22 October 2009
• Northeastern University, 11 October 2009
• Carnegie Mellon University, 07 October 2009
• State University of New York at Albany, 24 August 2009
• University of Michigan, 20 August 2009
• Utah State University (GWLA), 20 August 2009
• State University of New York at Buffalo, 13 August 2009
• Lawrence Livermore National Laboratory, 04 August 2009
• University of Iowa, 28 July 2009
• East Carolina University, 25 July 2009
• University of Mississippi, 21 July 2009
• University of Minnesota-Twin Cities, 23 June 2009
• Wake Forest University, 19 June 2009
• Savannah River National Laboratory, 01 June 2009
• University of Chicago, 18 May 2009
• Northern Illinois University, 11 May 2009
• University of Georgia, 08 May 2009
• Texas A&M University (GWLA), 08 May 2009
• Arizona State University (GWLA), 29 April 2009
• Illinois Institute of Technology, 23 April 2009
• Washington University in Saint Louis (GWLA), 23 April 2009
• University of Arizona (GWLA), 22 April 2009
• University of Illinois at Chicago 17 April 2009
• Grand Valley State University, 16 April 2009
• California State University, 14 April 2009
• Georgia State University, 02 April 2009
• University of Washington (GWLA), 01 April 2009
• Brigham Young University (GWLA), 26 March 2009
• Georgia Institute of Technology, 24 March 2009
• Tulane University, 04 February 2009
• Florida Center for Library Automation (FCLA) / Council of State University Libraries (CSUL), 02 February 2009
  • Florida Agricultural & Mechanical University
  • Florida Atlantic University
  • Florida Gulf Coast University
  • Florida International University
  • Florida State University
  • New College of Florida
  • University of Central Florida
  • University of Florida
  • University of North Florida
  • University of South Florida
  • University of West Florida
• Oregon State University (GWLA), 27 January 2009
• Virtual Library of Virginia (VIVA), 17 September 2008
• Triangle Research Libraries Network (TRLN), 17 July 2008
  • Duke University
  • North Carolina Central University
  • North Carolina State University
  • University of North Carolina at Chapel Hill
• NorthEast Research Libraries consortium (NERL), 15 July 2008
• Cornell University Library (as part as NERL), 15 July 2008
• University of Rochester (as part as NERL), 15 July 2008
• Baylor University (GWLA), 11 July 2008
• Colorado State University (GWLA), 11 July 2008
• Iowa State University (GWLA), 11 July 2008
• Kansas State University (GWLA), 11 July 2008
• Rice University (GWLA), 11 July 2008
• University of Arkansas (GWLA), 11 July 2008
• University of Colorado-Boulder (GWLA), 11 July 2008
• University of Houston (GWLA), 11 July 2008
• University of Missouri (GWLA), 11 July 2008
• University of New Mexico (GWLA), 11 July 2008
• University of Oklahoma (GWLA), 11 July 2008
• University of Southern California (GWLA), 11 July 2008
• University of Utah (GWLA), 11 July 2008
• Washington State University (GWLA), 11 July 2008
• Purdue University, 20 June 2008
• Thomas Jefferson Laboratory, 18 June 2008
• University of California, Berkeley - Lawrence Berkeley Laboratory, 13 June 2008
• Northwestern University, 10 June 2008
• University of Illinois at Urbana-Champaign, 06 June 2008
• Stanford Linear Accelerator Center, 29 May 2008
• University of Kansas (GWLA), 21 April 2008
• University of Hawaii (GWLA), 19 April 2008
• Emory University, 16 April 2008
• University of Wisconsin at Madison, 11 April 2008
• Lewis and Clark College, 10 April 2008
• Maine InfoNet, 09 April 2008
• University of Oregon (GWLA), 04 April 2008
• OhioLINK, 25 March 2008
• Johns Hopkins university (as part as NERL), 10 March 2008
• Argonne National Laboratory, 28 February 2008
• Fermilab, 28 February 2008
• Los Alamos National Laboratory, 28 February 2008
• Pacific Northwest National Laboratory, 28 February 2008
• California Institute of Technology, 28 February 2008
• University of California, Berkeley, 25 February 2008
• University of California, Davis, 25 February 2008
• University of California, Irvine, 25 February 2008
• University of California, Los Angeles, 25 February 2008
• University of California, Merced, 25 February 2008
• University of California, Riverside, 25 February 2008
• University of California, San Diego, 25 February 2008
• University of California, San Francisco, 25 February 2008
• University of California, Santa Barbara, 25 February 2008
• University of California, Santa Cruz, 25 February 2008