Electronic Systems Service & Support

For service and support, please contact us at the numbers listed below. If your request is not covered by the service departments listed, please submit a Service Request Form.


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

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

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

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

Maritime Systems Maritime Systems Aftermarket Support
Helm to Rudder Support for our military customers
Toll free domestic support (866) 328-1152
International support (434) 974-2000 option 5

Navigation Systems Support for Military CustomersNavigation 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 CustomersNavigation 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

Sperry MarineNorthrop Grumman Sperry Marine 24/7 Worldwide Service
US +1 (504) 371-8365
Europe +31 10-44-51-630
Asia +65 6274-3332

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


If your request is not covered by the service departments listed above, please submit a Service Request Form.