UNITED STATES

                       SECURITIES AND EXCHANGE COMMISSION

                              WASHINGTON, DC 20549

                                    FORM 8-K

                                 CURRENT REPORT

     Pursuant to Section 13 or 15 (d) of the Securities Exchange Act of 1934

                        Date of Report: November 5, 2004


                                ESSEX CORPORATION
             (Exact name of Registrant as specified in its charter)

Commission File No.  0-10772

         Virginia                                                  54-0846569
(State or other jurisdiction of                         (IRS Employer ID No.)
incorporation or organization)

         9150 Guilford Road
         Columbia, Maryland                                        21046-2306
(Address of principal executive office)                            (Zip Code)

Registrant's telephone number, including area code:            (301) 939-7000

Check  the  appropriate  box  below  if the  Form  8-K  filing  is  intended  to
simultaneously  satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2. below):

[  ]   Written communications pursuant to Rule 425 under the Securities Act
       (17 CFR 230.425)

[  ]   Soliciting material pursuant to Rule 14a-12 under the Exchange Act
       (17 CFR 240.14a-12)

[  ]   Pre-commencement communications pursuant to Rule 14d-2(b) under the
       Exchange Act (17 CFR 240.14d-2(b))

[  ]   Pre-commencement communications pursuant to Rule 13e-4(c) under the 
       Exchange Act (17 CFR 240.13e-4(c))








                                ESSEX CORPORATION



ITEM 8.01 OTHER EVENTS.

LISA G. JACOBSON  joined us in July 2004 as Executive  Vice  President and Chief
Financial  Officer  (CFO).  From  2000 to  spring  of  2004  she was CFO for ACS
Government  Services,  Inc. (ACS-GS),  a subsidiary of Fortune 500 ACS, Inc. She
continued  as CFO  following  the  acquisition  of  ACS-GS  by  Lockheed  Martin
Government  Services  Group,  Inc. in 2003 until her  departure  in spring 2004.
ACS-GS  provided  commercial  solutions as well as  engineering  and  technology
services to the U.S.  Government and other customers.  Annual revenue for ACS-GS
for fiscal 2003 was reported by the company to be  approximately  $700  million.
From 1990 to November 2000, Ms. Jacobson was Director,  Accounting and Financial
Management Division of the U.S. Government  Accountability  Office ("GAO"). From
1979 to 1987,  and from  1989-90 she was at  Deloitte & Touche,  where her final
position was Senior  Manager.  She was a GAO Fellow from 1987 to 1989.  She is a
Certified  Public  Accountant  and holds a Bachelor  Degree in  Accounting  from
Oklahoma State University.


                                   SIGNATURES

           Pursuant to the requirements of the Securities  Exchange Act of 1934,
the  Registrant  has duly  caused  this report to be signed on its behalf by the
undersigned hereunto duly authorized.

                                ESSEX CORPORATION
                                  (Registrant)



                            /S/ LEONARD E. MOODISPAW
                            --------------------------------------------
DATE:  November 5, 2004     Leonard E. Moodispaw
                            President & Chief Executive Officer