Radius Investigations

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150 Motor Pkwy Ste LL20
Hauppauge, NY 11788
Radius Investigations, centrally located on Long Island in Hauppauge, NY, was formed in 2007 by Matthew Seifer, a Licensed Private Investigator, Registered Armed Guard, and Division of Criminal Justice Services (DCJS) Certified Instructor. We have established ourselves as a leading force in surveillance, insurance investigations, and security services; coupled with expertise in corporate due diligence and background investigations, security consultation, litigation support, fraud, and internal investigations. Our firm has an experienced and diverse team of investigators, ranging from retired law enforcement, legal practice, and military service, available in New York, nationwide, and around the world. You can expect nothing less than sensitivity, confidentiality, thoroughness, expertise, professionalism, and integrity in services from Radius Investigations. We take great care and pride in our cases; We do everything possible to reach a resolution to your case.

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3.57 reviews
Photo of Matthew S.
Matthew S.
4/19/2019

Matthew Seifer is Extremely helpful and knowledgeable. I would recommend any interested party to use Radius as I found the Lead Investigator to be an extremely honest and straight forward...

Carmen A.
1/3/2020

1/3/2020 CarmenA. I needed assistance with locating a long lost family member and Mathew was very helpful in steering me in the right direction. I would highly recommend his services and...

Kathleen G.
8/10/2018

Not only was I more than satisfied with the result of the investigation, but I feel Matt went above and beyond to help heal my family situation. Matt and his staff were thorough, professional and...

Ashley F.
11/12/2015

Very interesting that this company has never even heard of me. Of course they haven't they require CASH payments only and therefore can say that I do not exist but it's ok I have your so called...

Tom S.
7/28/2018

Man there is nothing I regret more than hiring Matthew to investigate my case. He had 4 months before the trial to get in touch with one person by phone and get a copy of a contract. Matt told me...

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United StatesNew YorkHauppaugeRadius Investigations

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