ACEC-Illinois is the only statewide association dedicated solely to the interests of consulting engineering firms. As such, ACEC-Illinois promotes its business and professional concerns to national, state and local officials and other professions and associations through its Business, Government, and Public Affairs programs.

As its objective, ACEC-Illinois strives to assist its members in achieving higher professional, business and economic standards. By being proactive in professional matters of management and business, ACEC-Illinois helps its members to provide better consulting engineering services for their clients. Of particular concern is:

• protecting the public welfare;
• safeguarding the ethical standards of the engineering profession and ensuring that ethical standards are maintained by consulting engineers in private practice;
• promoting harmony, cooperation, and mutual understanding among consulting engineers;
• cooperating with public bodies and other organizations in matters of common interest;
• promoting the professional and economic welfare of its members;
• acting as a clearinghouse and information center among its members, and providing cooperative services for their common purpose and benefit;
• advising on enactment of legislation affecting the interest of consulting engineers, or that may have a relation to the general interests of ACEC-IL; and
• supporting and assisting in the advancement of the science and practice of engineering