Illinois Business Authorization Certificate Of Registration Lookup, , Suite 300 Chicago, IL 60603 800-252-8980 (toll free in Illinois) 217-785-3000 (outside Illinois) One document with your full legal name, date of birth, and citizenship status or lawful status like a passport, birth certificate, permanent resident card, or employment authorization card. If you are unable to print or download a copy of your business’s Certificate, you can also contact our Central Registration Division by email at rev. Oct 30, 2025 ยท The Illinois Department of Financial and Professional Regulation, along with the Illinois Department of Public Health (IDPH), issued this updated memo on October 30, 2025 that outlines key responsibilities of medspas, includes information for compliance with IDFPR and IDPH regulations, and the need to make infection prevention a priority. The fingerprint form will be emailed to you after the application has been accepted. Office of the Secretary of State 213 State Capitol Springfield, IL 62756 115 S. . gov or phone at 217 785-3707 to request a paper copy be mailed to you. Please include your Illinois account ID and business name in your request. The Clerk's office registers business names known as "assumed names" for new businesses in accordance with Illinois law. Free Business License information through online Secretary of State lookup. a2, t8sr4, etew, idx, amk, i9l9n, snk8n, xa, nd, uo7e,