MATSOL is a nonprofit community of educators dedicated to promoting equity and excellence in the education of multilingual learners in Massachusetts. With members spanning PK-12 schools, adult basic education, workplace programs, private language schools, and higher learning institutions, MATSOL is a diverse and inclusive organization. Their mission is to provide support and resources to educators and empower them with the knowledge and skills needed to effectively teach English learners.

By offering high-quality professional development courses and custom consultations, MATSOL ensures that teachers and administrators are well-equipped to meet the needs of their students. As advocates for multilingual learners, MATSOL played a vital role in the passage of the LOOK Act of 2017, which restored bilingual education and established a state Seal of Biliteracy. They also actively participate in national advocacy efforts alongside TESOL International Association.

By joining MATSOL, members gain access to Special Interest Groups, reduced registration fees for events, publications, job listings, and comprehensive support for advocacy initiatives. MATSOL is committed to fostering an inclusive and supportive community for educators passionate about serving multilingual learners