Mathematics, Engineering, Science Achievement (MESA) is an academic preparation program for pre-college, community college and university-level students. Established in 1970 in California, the program provides academic support to students from educationally disadvantaged backgrounds throughout the education pathway so they will excel in math and science and ultimately attain four-year degrees in science, technology, engineering or math (STEM) fields. The program has successfully been replicated in over a dozen other states. Locations and partners MESA, while administered by the University of California, is an intersegmental program, with centers located at all major statewide education institutions (California Department of Education, University of California, California State University, California Community Colleges, the Association of Independent California Colleges and Universities). MESA has established an active partnership with industry and STEM leaders such as AT&T, Chevron, Google, HP, Sempra Energy, and PG&E. These partners supply expertise, volunteers, internship and opportunities for students to visit companies and learn about career options in STEM fields. The strong relationship with industry has resulted in MESA incorporating many elements of industry culture into its approaches and activities. A partnership of MESA programs in eleven states (Arizona, California, Colorado, Maryland, New Mexico, Nevada, Oregon, Utah and Washington) has established a network called MESA USA. Program components The MESA School Program (MSP) supports pre-college students (mostly in middle and senior high schools) to excel in math and science and go on to college as majors in STEM fields. Advising and academic assistance is provided through a MESA advisor, usually a math or science teacher. Components of the MSP include development of individual academic plans to ensure timely completion of college preparatory classes, study skills training, local and regional competitions in hands-on activities, career and college exploration, and parent leadership development. MSP also offers professional development opportunities for math and science teachers to learn innovative approaches and hands-on activities that can be replicated in schools with limited resources. The MESA Community College Program (MCCP) provides academic preparation for community college students who are interested in transferring to four-year institutions to attain baccalaureate degrees in STEM fields. MESA establishes an on-campus peer community to reinforce and support academic achievement while providing academic assistance and transfer guidance. Components of the MCCP include Academic Excellence Workshops that teach collaborative learning techniques that help students to master complex concepts; a special orientation course for STEM students; a dedicated study center; career advising and exploration of STEM options;