The Midwest Association of Translators and Interpreters is a chapter of the American Translators Association and a professional non-profit organization for translators and interpreters.  It represents Illinois, Indiana and Wisconsin. Founded in 2003, MATI offers members benefits such as a membership directory, frequent webinars in the field, and an annual conference that rotates among the three states. It is composed of a board of directors, and committees that carry out the following objectives:
To promote the recognition and advancement of translation and interpretation as professions.

To promote high standards of professional ethics and business practices for professionals in the translation and interpretation fields.

To advocate for the rights and interests of professional translators and interpreters.

To encourage and support the formation of local groups of translators and interpreters within its geographic area to fulfill similar objectives.

To provide information to professionals in the translation and interpretation fields to improve their business abilities and assist newcomers to the profession in establishing themselves in the marketplace.

To support certification, education, training and professional development opportunities for translators and interpreters.

To cooperate actively with the ATA and other groups who represent these professions.

To provide an open forum in which translators and interpreters and those in allied fields can network and discuss common objectives and issues of mutual interest.

To educate the public and influence public policy as it applies to the professions of translation and interpretation.