Contact DTB Bohemia, NY

Locations: Bohemia, NY (HQ) • Shelton, CTPax River, MDWichita, KS
News & EventsAbout DTB

DTB’s 32-acre corporate, laboratory, and technical campus in New York features the largest and most thoroughly equipped independent engineering and testing lab in the US.

Hours of Operation:
Monday – Friday
8:00 am – 4:30 pm (EST)
Dayton T. Brown, Inc.
1175 Church Street
Bohemia, NY 11716

Visiting DTB? Here’s what you need to know:

  • The safety and security of our employees, customers, and programs is our top priority.
  • You will be required to show your valid, government-issued ID upon arrival.
  • Photographic equipment is not permitted inside of our secure facilities, unless prior arrangements have been made and authorization has been granted by our Security office.
  • The use of cell phone cameras is strictly prohibited inside of our secure facilities.

Before your visit:

  • If you are a non-US citizen or non-permanent resident, you must submit a Visit Form.
  • Please confirm your DTB point of contact.
  • If you are running a classified program, please contact our Security office at (631) 244-6431.

Local activities and attractions:

In order to help you find your way around the area, we have compiled a listing of local amenities for your convenience. For places to stay, things to do, where to eat, and more – please download our Visitor's Resource Guide.

General Inquiries:
Local: (631) 589-6300
Toll-Free: (800) 232-6300

Engineering & Test:
Customer Service/Sales: (631) 244-6429
Toll-Free: (800) 837-8456
Fax: (631) 589-3648

Technical Services:
Toll-Free: (866) 300-1701
Fax: (631) 567-8540

Mission Systems:
Local: (240) 490-2499

DTB Quick Inquiry Form
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