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 (Date of earliest event reported): January 6, 2005


                                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 1.01.  ENTRY INTO A MATERIAL DEFINITIVE AGREEMENT.

In  conjunction  with a  proposed  acquisition  of  The  Windermere  Group,  LLC
("Borrower")  by Essex  Corporation  ("Essex"),  Essex entered into a Promissory
Note and Loan Agreement and Amendment  thereto  (collectively,  the "Note") with
Borrower  pursuant to which Essex loaned Borrower  $25,000,000.  The proceeds of
the  loan  are to be  used by  Borrower  to  completely  redeem  all of  Liberty
Technologies  Unlimited,  Inc.'s  ownership  and  membership  interests  in  the
Borrower. The date of the Promissory Note and Loan Agreement is January 6, 2005,
which was subsequently amended to January 7, 2005.

The entire outstanding  principal balance of the Note, together with accrued and
unpaid  interest  is due and  payable on the  earlier of (i) the  closing of any
acquisition of Borrower by Essex or (ii) July 7, 2005,  unless extended by Essex
in Essex's sole discretion.

Interest accrues on the unpaid principal  balance of the Note at a rate equal to
the greater of simple  interest of eight  percent  (8%) per annum or a per annum
rate of one percent  (1%) above the prime rate of interest as  published  in The
Wall Street Journal on July 7, 2005 or any accelerated due date under the Note.

This Note is guaranteed by the Borrower's  subsidiaries and interest holders and
is  secured  by a  first  lien  security  interest  in  all  of  the  Borrower's
outstanding  ownership  and  membership  interests,  pursuant  to the  following
agreements:

o Corporate  Guaranty made by The Andrew  Patrick Tate, LLC (the "Tate LLC") for
the benefit of Essex, dated January 5, 2005;

o        Corporate Guaranty made by The Susan Katherine Tate  Burrowbridge,  LLC
         (the  "Burrowbridge  LLC") for the benefit of Essex,  dated  January 5,
         2005;

o        Corporate  Guaranty  made  by The  Elizabeth  Tate  Winters,  LLC  (the
         "Winters LLC") for the benefit of Essex, dated January 5, 2005;

o        Corporate Guaranty make be Windermere HDS, LLC ("HDS") for the benefit
         of Essex, dated January 5, 2005; and

o        Corporate Guaranty made by Windermere  Information  Technology Systems,
         LLC ("Technology") for the benefit of Essex, dated January 5, 2005.

Tate LLC, Burrowbridge LLC and Winters LLC are hereinafter collectively referred
to as the "Tate Parties" and HDS and Technology are  hereinafter  referred to as
the "Borrower's Subsidiaries".

The  Tate  Parties  have  secured  their   obligations  under  their  respective
guarantees  pursuant to a Pledge Agreeement  pursuant to which they have pledged
to Essex, among other things, all of their right, title and interest as an owner
and member of Borrower, which they have represented to be, in the aggregate, the
entire equity interest in Borrower.

Pursuant to a Subordination Agreement dated January 7, 2005 by and among Bank of
America,  N.A.,  Essex,  Borrower,  the  Borrower's  Subsidiaries  and the  Tate
Parties,  the  Note  is  subordinated  to the  Borrower's  indebtedness  under a
preexisting  revolving  line of credit with Bank of America,  N.A. which permits
draws up to a maximum principal amount of $10,000,000.



                               ESSEX CORPORATION

ITEM 9.01.  FINANCIAL STATEMENTS AND EXHIBITS

Exhibit 99 Press Release of the Corporation dated January 7, 2005.








                                   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



                                    /S/ LEONARD E. MOODISPAW 
                                    -------------------------------------
DATE:  January 11, 2005             Leonard E. Moodispaw
                                    President and Chief Executive Officer




                               ESSEX CORPORATION

                                  EXHIBIT INDEX


Exhibit
NUMBER          DESCRIPTION 
------          -----------


99              Press Release of the Corporation dated January 7, 2005.