California MESA is a founding member of MESA USA, a partnership of MESA programs from eight states that have joined together to support disadvantaged and underrepresented students to achieve academically in math, science and engineering and go on to attain math-based degrees. Members include MESA programs in Arizona, California, Colorado, Maryland, New Mexico, Oregon, Utah and Washington.

The programs are based on a common co-curricular academic enrichment model that includes academic planning, community service, family involvement, academic enrichment, hands-on engineering activities, career advising, field trips, competitions and workshops.

MESA USA provides an opportunity for its members to share and expand strategies that work. It also allows the MESA programs to share resources and provide industry sponsors with the highest return on their investment.

The MESA USA states are:

Arizona MESA

California MESA

Colorado MESA

Maryland MESA

New Mexico MESA

Oregon MESA

Utah MESA

Washington MESA