Full-Fledged Chapters
| Berkeley, CA | |||
| beta | University of California, Davis | Spring 1990 | CA |
| gamma | University of California, San Diego | Winter 1992 | CA |
| delta | University of California, Santa Cruz | Spring 1992 | CA |
| epsilon | University of California, Riverside | Summer 1992 | CA |
| zeta | Stanford University | Spring 1993 | CA |
| eta | University of Texas, Austin | Fall 1993 | TX |
| theta | University of Pennsylvania | Fall 1994 | PA |
| iota | University of Houston | Fall 1994 | TX |
| kappa | University of California, Irvine | Fall 1994 | CA |
| lambda | University of Michigan at Ann Arbor | Winter 1996 | MI |
| mu | CSU, Sacramento | Spring 1996 | CA |
| nu | Pennsylvania State | Fall 1994 | PA |
| xi | San Jose State University | Spring 1995 | CA |
| omicron | Cal Polytechnic State University, San Luis Obispo | Spring 1996 | MI |
| pi | University of Washington | Spring 1998 | WA |
| rho | SUNY Buffalo | Spring 1997 | NY |
| sigma | University of Virginia | Fall 1999 | WA |
| tau | Cornell University | Spring 1997 | NY |
| upsilon | University of Illinois, Urbana Champaign | Spring 2000 | IL |
Associate Chapters
| Boston University | Spring 1997 | MA |
| The Johns Hopkins University | Winter 1997 | MA |
| Baylor University | Fall 1997 | TX |
| New York University | Spring 1999 | NY |
| University of Illinois, Chicago | Fall 1998 | IL |
| SUNY, Stony Brook | Spring 1999 | NY |
| Rutgers University | Spring 2000 | NJ |
| University of California, Santa Barbara | Spring 2001 | CA |
| University of North Carolina, Chapel Hill | Spring 1996 | NC |
| Florida State University | Spring 2001 | FL |
| University of Oklahoma | Spring 2005 | OK |
Colonies
| Michigan State University | Fall 1998 | MI |
| Virgina Tech | Spring 2002 | VA |
| University of Maryland, College Park | Fall 2002 | MD |
| James Madison University | Spring 2003 | VA |
| SUNY Binghamton | Spring 2003 | NY |
| Purdue University | Fall 2003 | IN |
| Carnegie Mellon University | Fall 2003 | PA |
| St. John's University | Fall 2004 | NY |
| University of Maryland, Baltimore County | Fall 2005 | MD |
| Duke University | Spring 2006 | NC |
| University of Southern Florida | Spring 2006 | FL |
| Virginia Commonwealth University | Spring 2006 | VA |
| University of Winsconsin | Spring 2008 | WC |
| University of Florida | Spring 2009 | FL |
| CUNY Baruch | Fall 09 | NY |