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.
Local: (631) 589-6300
Toll-Free: (800) 232-6300
Engineering & Test:
Customer Service: (631) 244-6429
Sales Assistance: (631) 244-6341
Toll-Free: (800) 837-8456
Fax: (631) 589-3648
Toll-Free: (866) 300-1701
Fax: (631) 567-8540
Map & Directions