- 3rd Coast Ghost Hunters Alliance
 - Investigates paranormal activity in the Brazoria, Galveston, and Harris tri-county area using photo, video, and EVP documentation techniques. - Alabama Foundation For Paranormal Research (AFFPR)
- Working to provide solid scientific proof and help others understand that life exists beyond the grave.
- Alabama Ghost Hunter's Society
- Dedicated to the study of paranormal activity of all sorts.
- Albany Ghost Investigators
- Provide paranormal investigations in the Capital District of New York State. Offers individuals help to understand the phenomena surrounding haunting. Services are free of charge.
- American Ghost Society
- Network of ghost hunters, ghost writers, and ghost enthusiasts.
- Christian County Ghost Hunters Society (CCGHS)
- Phenomena investigators in and around Christian County, Illinois.
- Crawford County Illinois Ghost Hunters Society
- Investigates cemeteries, houses, and any other place that might have the presence of paranormal activity.
 Dagulf's Ghost Paranormal Investigations
- International team of parapsychologists and paranormal investigators in the North and East Texas areas along with Winchester, U.K.- Franklin County Ghost Debunkers (FCGD)
- Group of investigators looking for rational, natural, or plausible explanations for alleged paranormal phenomena.
- GHG Ghost Hunters
- Paranormal researchers investigating haunts, ghosts, spirits, and other anomolies in Pensacola, FL.
- Ghost Club
- Examining paranormal activity.
- Ghost Club Society, The
- Features photos, studies, and history. Members include Patrick Moore and Uri Geller. Offers visits to many of the UK's most haunted sites.
- Ghost Hunters of Southern Michigan (GHOSM)
- With pictures from ghost hunts and a few true ghost stories.
- Ghost Hunters Ohio Search Team
- Ghost hunting investigation results featuring evps, ghostly photos, and true ghost stories.
- Ghost Research Society
- Includes photo analysis, haunted sites, features, and more.
- Ghost Stalkers of West Tennessee, The
- Small group of paranormal researchers, investigating reports of paranormal activity in homes, businesses, and cemeteries around the Memphis area.
- Ghost Stories of North Carolina
- Read, watch, or listen to stories of spirits have righted wrongs, brought criminals to justice, punished wayward husbands, avenged cruel deeds, and even gotten themselves in court records.
- Ghost Watch UK
- Provides information on all aspects of researching and investigating ghostly phenomena.
- Ghostbusters UK
- Investigating the paranormal.
- Ghosts & Haunts in Missouri
- Investigations and research of ghosts and paranormal activity. Offers a haunted locations database for the state of Missouri.
- Ghosts of Ohio
- Organisation dedicated to investigating and documenting alleged hauntings in Ohio.
- Ghosts.org.uk
- Works to raise the public perception of ghost and paranormal, maintain public confidence and promote the occupation of paranormal research.
- Haunted Hamilton
- Dedicated to the research and investigation of history and hauntings around the world, based in Hamilton, Ontario, Canada. Also offers ghost walks, campfires, and trips.
- Haunted North Carolina
- Ghost and haunting research organisation presenting case files, photos, audio recordings, and a learning centre.
- History & Hauntings: Home of the Ghosts of the Prairie & the American Ghost Society
- Guide to the hauntings, unexplained happenings, and spooky history of the midwestern U.S. presented by Ghosts of the Prairie & Dark Haven Entertainment.
- Idaho Ghost Hunters
- Features ghost pictures, stories, hunting resources, and more.
- International Ghost Hunters Society
- Featuring photos, articles, and home study information relating to ghost hunting and paranormal activity.
- International Society for Paranormal Research
- Forming a cohesive bond worldwide between Parapsychologists and others in the field of paranormal research.
- Kentucky Paranormal Research (KPR)
- Team of investigators researching the vast realms of the paranormal.
- Lake Tahoe Ghost Hunters
- Dedicated to paranormal phenomena in the area.
- Lone Star Spirits
- Investigating and recording ghost tales and haunted houses in countless cities and small towns all over Texas. Also includes a listing of ghost town within the state.
- Maryland Ghost & Spirit Association
- Association dedicated to paranormal research in the state of Maryland.
- Midnight Society, The
- Offers historical information on strange and unusual events, places, and local legends.
- Ohio Ghost Researchers
- Conducting paranormal investigations in North East Ohio.
- Organization of Ghosts and Hauntings Research Societies, The
- Links to societies and sites.
- Paranormal Investigators & Research Association
- Site dedicated to the research and investigation of paranormal activity.
- ParaScience
- Offering scientific research of ghosts and haunting phenomenons.
- Philadelphia Ghost Hunters Alliance
- Organisation dedicated to the research, investigation, documentation and education of ghostly phenomena and hauntings. Serving Eastern Pennsylvania, New Jersey, and Delaware.
- Phoenix Paranormal Investigations
- Formed in the late 80's, investigates paranormal phenomena across the north U.K.
- South Jersey Ghost Research
- Research and investigation group in the New Jersey/Pennsylvania/Delaware area.
- South Jersey Ghost Research (SJGR) Philadelphia
- Assisting people in the Philadelphia area, New Jersey, Delaware, and New York City who need help with a haunting.
- Southwest Ghost Hunters Association
- Providing research and evidence of paranormal activity. Includes pictures, videos, member information, and more.
- Spiritseekers of Ohio
- Investigating haunted Ohio and working to document and present credible evidence to the public on the existence of ghosts.
- Toronto Ghosts and Hauntings Research Society
- Concentrates on the history, legends, and myths.
- Tri-State Paranormal Research
- Northern New Jersey paranormal research group, working to bring paranormal study into the mainstream of modern science.
- Umbria Paranormal Research Team - Missoula, MT
- Dedicated to research and investigation of paranormal incidents.
- Utah Ghost Hunters Society
- Paranormal investigators.
- Utah Ghost Organization, The
- Conducting investigations at locations believed to be haunted as well as hunting for spirits in cemeteries in Utah and Idaho.
- Utah Ghost Research & Investigation (UGRI)
- Focuses on the investigation and research of paranormal activity such as spirits, ghosts, and apparitions.
- Wausau Paranormal Research Society (WPRS)
- Provides free and confidential professional investigations of paranormal phenomena in the North Central Wisconsin area.
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