Below is different organizations that you may not be aware that exists that can help you with information or searching for a missing person. 

Missing Posters

Contact the AWARE Foundation if you would like help with creating a poster for your missing loved one. Let them know that Missing Persons of America sent you.  Click Here.

All Missing

NCIC is a used by law enforcement.  In specific cases they include missing persons in their database.  This is their criteria:

 Missing Persons:
  1. A person of any age who is missing and who is under proven physical/mental disability or is senile, thereby 
  subjecting that person or others to personal and immediate danger.
  2. A person of any age who is missing under circumstances indicating 
  that the disappearance was not voluntary.
  3. A person of any age who is missing under circumstances indicating 
  that that person's physical safety may be in danger.
  4. A person of any age who is missing after a catastrophe.
  5. A person who is missing and declared unemancipated as defined by 
  the laws of the person's state of residence and does not meet any of 
  the entry criteria set forth in 1-4 above.

Cold Case Squads around the world.

NECRO Search International - providing a resource for locating clandestine graves

Private Investigator:  Michael DeNight, a private detective specializes in locating missing persons.  He is based in New Jersey.  "I'm a former NJ Police Officer that now is a Licensed Private Investigator, that Specializes in the investigations of Human Trafficking and Missing Persons. There is a flat fee of $1000 for Michael's services.
 

Missing Hearts will provide you with help for no costs.  Please go to their Facebook page to read more.

Central US Missing Task Force  Central U.S. Missing Persons Task Force assists County Sheriff’s Departments, Local Police Departments and families in finding missing persons or related evidence within the region of Oklahoma and Texas.Please go to their Facebook page to read more.

Missing Children

Report your missing child to the police, first and The National center for Missing and Exploited Children.  They have a 24-hour hotline 1-800-the-lost. The National Center for Missing and Exploited Children released an app called “Safety Central.”  It is a digital ID kit and is available for the iPhone and Android.  You can also download tips and resources from NCMEC. Click here to download the app for iPhone and here for Android. This is also where you call if you think you have identified a missing child.

There is also a CyberTipLine if you think a child is being sexual exploited.

Trucks 4 Kidz Missouri and Illinois  A charity organization that helps family with children less fortune.  They also assist in helping find local missing children and help bring them home safe.

Missing and Possibly Homeless

Salvation Army Missing Persons – The Salvation Army Missing Persons purpose is to help facilitate successful reunions between family members who have lost contact with each other. Searches are conducted utilizing a variety of methods, including government offices, credit institutions, social service agencies and law-enforcement personnel.

Homeless Outreach Team:  San Diego ONLY – Public line for the SDPD HOT team: (858) 490-3850 or (866) 737-3468 – The Homeless Outreach Team (HOT) together with the Psychiatric Emergency Response Team (PERT) provide outreach and engagement services throughout the City of San Diego. They are the City’s initial point of contact with both chronic homeless and chronic inebriates living on the streets. Each HOT Team is composed of police officers, County psychiatric clinicians and County Mental Health eligibility technicians.

Adult Missing

The National Institute of Justice’s National Missing and Unidentified Persons System (NamUs) is a national centralized repository and resource center for missing persons and unidentified decedent records. NamUs is a free online system that can be searched by medical examiners, coroners, law enforcement officials and the general public from all over the country in hopes of resolving these cases.”  It is a resource for missing persons, unidentified persons and unclaimed persons. Also see Information materials for families — see Identifying Victims Using DNA: A Guide for Families (also available in Spanish).  If you have a missing family member if you have not already done so, you should provide DNA to NamUs, as it is possible that your family member has already been found and they are waiting for DNA for a match.

Salvation Army Missing Persons – The Salvation Army Missing Persons purpose is to help facilitate successful reunions between family members who have lost contact with each other. Searches are conducted utilizing a variety of methods, including government offices, credit institutions, social service agencies and law-enforcement personnel.

 The Violent Criminal Apprehension Program (ViCAP) maintains the largest investigative repository of major violent crime cases in the U.S. It is designed to collect and analyze information about homicides, sexual assaults, missing persons, and other violent crimes involving unidentified human remains.

Anti-Predator Project is a nonprofit organization dedicated to combating human trafficking and sexual predators in the United States through the use of specially trained private investigators. Along with providing investigative and protective services for those victims of these horrific crimes, Anti-Predator Project is also highly dedicated to educating the community about the reality of human trafficking in the United States.

The Doe Network is a 100% volunteer organization devoted to assisting investigating agencies in bringing closure to national and international cold cases concerning Missing & Unidentified Persons. It is our mission to give the nameless back their names and return the missing to their families.  Go here if you think that your missing family member MAY have been found deceased but they have not been found. Also, anyone can join and help work on cases.

Veteran Doe This website, and associated social media pages, have been started by volunteer military family members to bring attention to the many unidentified John and Jane Doe cases where local law enforcement has indicated there is a likely military connection.

Social Security Administration assists families to locate a missing relative by trying to locate an address.  They will ask for the missing person’s Social Security number or identifying information to help find the number, like their date of birth and place of birth, mother’s full birth name and father’s name. ?

Seniors – ages vary in each state

Silver Alerts – Criteria is different for each state, so check in your state.  They are also not just for seniors and in some states are used for people with disabilities.  Silver Alerts use commercial radio stations, television stations, and cable television to broadcast information about missing persons.  “Silver Alerts also use variable-message signs on roadways to alert motorists to be on the lookout for missing seniors. In cases in which a missing person is believed to be missing on foot, Silver Alerts have used Reverse 911 or other emergency notification systems to notify nearby residents of the neighborhood surrounding the missing person’s last known location.”

Medic Alert for Alzheimer:  MedicAlert® + Alzheimer’s Association Safe Return® is a 24-hour nationwide emergency response service for individuals with Alzheimer’s or a related dementia who wander or have a medical emergency. We provide 24-hour assistance, no matter when or where the person is reported missing.

Teens – up to age 18 Missing

Anti-Predator Project is a nonprofit organization dedicated to combating human trafficking and sexual predators in the United States through the use of specially trained private investigators. Along with providing investigative and protective services for those victims of these horrific crimes, Anti-Predator Project is also highly dedicated to educating the community about the reality of human trafficking in the United States.

Report your missing teen to the police, first and The National center for Missing and Exploited Children.  They have a 24-hour hotline 1-800-the-lost.

The National Center for Missing and Exploited Children released an app called “Safety Central.”  It is a digital ID kit and is available for the iPhone and Android.  You can also download tips and resources from NCMEC.

Click here to download the app for iPhone and here for Android.

This is also where you call if you think you have identified a missing teen.

There is also a CyberTipLine if you think a child is being sexual exploited.

Searchers

Texas EquuSearch Mounted Search and Recovery Team started in August 2000 with the purpose to provide Volunteer Horse Mounted Search and Recovery for Lost and Missing persons.  “Our team is composed of volunteers of various experiences, with many being experienced horse owners. We currently have approximately 600+ members and are growing rapidly. We are currently available to conduct searches nation and worldwide. We are a 501(c)(3) nonprofit organization, which is funded solely by donations.”

FindMe  is an organization of talented psychics, law enforcement officers and professional search & rescue volunteers from all over the world. We utilize Search & Rescue members with canine support certified in tracking and cadaver search. We also have gifted forensic experts in handwriting, linguistics, body language, and age progression imaging. This unique group offers not only practical support through the expertise of investigative strategies, but the experience of retired law enforcement, skilled search & rescue professionals as well as the gifted talents of intuitive individuals. Since its inception Find ME has received over 400 requests for help, and the number of requests are increasing. Our network of 200 screened volunteers work collectively together to locate the missing and solve homicides. We also consult on human trafficking cases. We never charge anyone for our services. Our members donate all of their time and expertise to our cause.  We are partnered with K9 group – Arizona Search Track and Rescue