Illinois

Spirit Investigation Services

Ghosts of the Prairie

Central Illinois Paranormal Association

Joliet Paranormal Society (Covers most of Northern Illinois)

Confidential Paranormal Investigators (Southern WI. / Northern IL)

Springfield Paranormal Research Group (investigating all over central Illinois)

Illinois River Valley Paranormal Investigators (Western Half of Illnois)

Rock Island Paranormal(R.I.P.)

Greater Regional Illinois Ghost Organization Researchers & Investigators

Illinois Paranormal Researchers

NewAge Paranormal Research(N.A.P.R.)

Midwest Paranormal Society (Covering Central and Southern Illinois as well as St. louis and surrounding areas)

Windy City Paranormal

K.B.L.P.R. - Illinois Branch

Lake County Paranormal Investigations

Wisconsin Paranormal Investigators(WPI) (Covering Southeastern Wisconsin, Northeastern Illinois and surrounding areas)

Mississippi Valley Paranormal (Covering Eastern Iowa and Western Illinois)

Central Illinois Ghost Investigators

Illinois Basin Paranormal Investigations Scientific Approach(IBPISA) (Covering Illinois and Missouri)

Paranormal Research Investigators of Missouri(PRIOM) (Serving all of Missouri and Illinois)

Ghost Unit Analysis Research and Detection(G.U.A.R.D.) (Based in Central Illinois)