Secretary of State: http://www.sos.mo.gov/business/corporations/
Contact info:
Phone: (573) 751-4153 or Toll free: 1-866-223-6535
Email: corporations@sos.mo.gov
Mailing Address:
Corporations Division
James C. Kirkpatrick State Information Center
P.O. Box 778
Jefferson City, MO 65102
Physical Address (For deliveries such as express mailings):
Corporations Division
600 W Main St.
Missouri State Information Center, Room 322
Jefferson City, MO 65101-0778
Name search: https://www.sos.mo.gov/BusinessEntity/soskb/csearch.asp
Corporation and LLC forms and fees: http://www.sos.mo.gov/business/corporations
Department of Revenue: http://dor.mo.gov/
Department of licensing: http://www.mo.gov/Business/Professionals/index.php