Payment and Invoicing

Payment should be in accordance with your Northrop Grumman purchase order invoicing instructions. When applicable, the Northrop Grumman billing address will display in the header of the purchase order/change order

If you have any questions please contact your Northrop Grumman buyer or representative. 

Accounts Payable

For Aerospace Systems, Corporate & Enterprise Services, Mission Systems/Heritage Information Systems, Technology Services:
  • E-Mail invoices electronically (Preferred):
  • Alternate Mailing address:
  • Northrop Grumman Systems Corporation
    Enterprise Transaction Services
    8710 Freeport Parkway, Suite 200
    Irving TX 75063-2577
    Attn:A/P Department - Mail Stop K06421
  • Accounts Payable Inquiry E-Mail:
For Innovation Systems/Heritage Orbital ATK
  • E-Mail invoices electronically (Preferred):
  • Alternate Mailing address:
  • Alliant Techsystems Operations LLC
    Financial Shared Services
    5995 Opus Parkway
    Minnetonka, MN 55343
  • Accounts Payable Inquiry E-Mail:
For Mission Systems/Heritage Electronic Systems

Evaluated Receipts Settlement (ERS)

Supplier Invoice Instructions

Direct Pay Permits

Payment and Invoicing Contacts

Mission Systems - Heritage ES
Julia Brant 469-524-4209

Innovation Systems
Lynn Engbrecht 952-351-2607

All Other Sectors
Christopher Biddle 214-524-0165

Jeff Weatherhead 214-596-6501