Please contact us by telephone at the numbers listed below, or complete the Urgent Service Request Form.

Please complete the Service Request Form, or contact us at the numbers listed below.

Amherst Systems - Combat Training & Simulation
(716) 631-0610
Service and support for our electronic warfare simulation products.

Automated Test Equipment (ATE)
(224) 625-5665
Our advanced test solutions support our customer communities in theatre, depot and factory.

Denro Communication Systems
1-800-952-2502 / 1-800-847-7790
24-hour support for our products.

Laser Systems
321-354-3000
Products include LLDR, GLTD, Mark VII, Mark VIIE.

Navigation Systems Support for Military Customers
For service and more information, please call 1-866-NGNAVSYS (646-2879).
Northrop Grumman Litef: +49 761 4901-0
Northrop Grumman Italia: +39 06 911 921

Navigation Systems Support for Commercial Customers
From North America 1-866-NGNAVSYS (1-866-646-2879)
Employee Directory 1-818-715-2000
Worldwide Dial 1-818-715-2470

SureCAL Automated Calibration Software
1-800-913-3773
Live customer support and a range of annual support plans.