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
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
North America: 818-715-2500
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
North America 818-715-2000
Worldwide Dial 1-818-715-2470

Sperry MarineNorthrop Grumman Sperry Marine 24/7 Worldwide Service
US +1 (504) 371-8365 / Spares +1 (504) 328-9171
Europe +31 10-44-51-630 / Spares +31 (0) 10-445-1666
Asia +65 6274-3332 / Spares +65 6274-3332

SureCALSureCAL Automated Calibration Software
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.