When a loved one goes missing, every second counts. Families searching for answers often find themselves overwhelmed, frightened, and unsure where to turn. That is when an experienced missing persons detective in Yonkers becomes essential.
At New York Intelligence Agency, founded and led by investigator David Schassler, our mission is clear: to help families, businesses, and law enforcement agencies locate missing individuals with professionalism, precision, and compassion. With decades of investigative expertise, David Schassler has earned a reputation as one of the most trusted missing persons detectives in New York and beyond.

Yonkers, located just outside New York City, is one of the largest and busiest cities in the state. With a diverse population and constant movement of people in and out of the area, missing persons cases can quickly become complex. Whether it involves a runaway teenager, a missing family member, a loved one struggling with mental health issues, or a case of foul play, Yonkers missing persons detectives need advanced investigative skills and local knowledge to uncover the truth.
David Schassler understands the unique challenges that missing persons cases present in Yonkers. From navigating law enforcement coordination to analyzing digital footprints, surveillance, and witness interviews, his team brings an unmatched level of skill and dedication to each case.
David Schassler is more than just an investigator. He is a compassionate advocate for families in crisis. As the founder of New York Intelligence Agency, David has built a firm dedicated to private investigation services with a strong focus on missing persons investigations.
Over the years, he has helped countless families in Yonkers and throughout New York reunite with missing loved ones. His approach combines modern investigative technology with traditional detective work. Every missing persons case is unique, and David Schassler approaches each investigation with the patience, discretion, and determination needed to get results.
When hiring a missing persons detective in Yonkers, clients need more than just a search. They need a complete investigative strategy. David Schassler and his agency provide comprehensive services tailored to the specific needs of each case.
Our services include:
Runaway and Teen Investigations – Locating minors who have left home or school.
Family and Loved Ones – Helping reconnect families who have lost touch.
Kidnapping and Abduction Cases – Working closely with law enforcement to track high-risk cases.
Elderly Missing Persons – Investigating vulnerable individuals suffering from dementia or Alzheimer’s.
Adoption and Biological Family Searches – Assisting individuals in finding biological relatives.
Witness Location – Locating individuals vital to court cases or legal matters.
Digital and Online Tracing – Using technology and digital forensics to track leads.
Each missing persons case handled by New York Intelligence Agency is backed by thorough research, advanced technology, and years of investigative experience.
When you contact David Schassler, Missing Persons Detective in Yonkers, the process begins with listening. Understanding the unique details of your case is the first step toward building a tailored investigative plan.
Initial Consultation – Gathering all known facts, last-seen information, and background details.
Research and Strategy Development – Analyzing data, online activity, and known contacts.
Field Investigation – Surveillance, witness interviews, and on-the-ground intelligence gathering.
Coordination with Authorities – Working with local law enforcement when appropriate.
Reporting and Updates – Providing clients with detailed updates and investigative findings.
Resolution – Striving for safe reunification whenever possible.
Families in Yonkers trust David Schassler because he combines professional skill with a deep commitment to helping people in crisis.

Hiring a private investigator can feel overwhelming, especially during an emotional crisis. But when you choose David Schassler and New York Intelligence Agency, you gain more than an investigator—you gain a partner.
Experience: Decades of investigative work in New York and Yonkers.
Local Knowledge: Understanding the unique challenges of missing persons cases in Westchester County.
Compassion: Treating every family with care, respect, and sensitivity.
Results-Oriented: A proven track record of reuniting families and locating missing individuals.
Discretion: Confidential and professional services that protect your privacy.
For many families, working with a missing persons detective like David Schassler has brought answers, closure, and reunification.
While based in Yonkers, New York Intelligence Agency serves clients throughout the greater New York area and beyond. Missing persons cases often cross state lines or involve multiple jurisdictions. David Schassler has the resources and connections to expand investigations wherever the evidence leads.
From local cases in Yonkers neighborhoods to international searches, no case is too large or too complex.
If you are searching for a loved one or need answers, do not wait. Time is critical in missing persons cases. Contact David Schassler and his team at New York Intelligence Agency today.
Today to schedule an appointment and learn more about how we can help.
OFFERING THE MOST UP-TO-DATE SURVEILLANCE TECHNIQUES
Matrimonial Investigations & Voice Stress Analysis – Truth or Lie Detection along with Executive Protection.






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