Diesel Investigations
 NYC’s Premier Boutique Private Investigator 

Free Confidential Consultation

Not sure if you need help? That's often how it starts.

Most clients don't expect to need an investigator - until something doesn't add up. Money goes missing. A story doesn't hold. Someone disappears. When that happens, you need answers you can trust.

We uncover the truth when it matters most - whether protecting your business, safeguarding your family, or securing evidence for a legal matter. Every case is handled with discretion, professionalism, and a commitment to clear, defensible results.

Start with a conversation, call us at 888-296-0660. Or send us an email or fill out the Contact Form below.

We would welcome the opportunity to either speak over the phone or come meet you to talk.

We deliver fact-driven investigative support for attorneys, businesses, and individuals who need answers they can rely on.

We focus on three core areas: case development, witness interviews, and due diligence investigations. Founded by former FBI Supervisory Special Agent Matthew Bertron, with 27 years of federal investigative experience, we bring disciplined, results-oriented methods to every case.

Free 15-minute Confidential Consultations Available.

Fill out the form below and Lets Talk!