FOURTH AMENDMENT TO CREDIT AGREEMENT


     THIS FOURTH AMENDMENT TO CREDIT AGREEMENT (herein called this "Amendment")
is executed on the date set forth on the signature pages but is made effective
as of December 31, 2005, by and among ENGLOBAL CORPORATION, a Nevada Corporation
("ENGlobal Corporation"), ENGLOBAL CORPORATE SERVICES, INC., a Texas corporation
("ENGlobal Corporate"), ENGLOBAL ENGINEERING, INC., a Texas corporation
("ENGlobal Engineering"), ENGLOBAL CONSTRUCTION RESOURCES, INC., a Texas
corporation ("ENGlobal Construction"), ENGLOBAL SYSTEMS, INC., a Texas
corporation ("ENGlobal Systems"), RPM ENGINEERING, INC., a Louisiana corporation
("RPM Engineering"), ENGlobal Technical Services, Inc. ("ENGlobal Technical"),
formerly known as ENGlobal Design Group, Inc., and ENGLOBAL AUTOMATION GROUP,
INC., a Texas corporation, formerly known as ENGLOBAL TECHNOLOGIES, INC.
("ENGlobal Automation"; individually and collectively, jointly and severally,
ENGlobal Corporation, ENGlobal Corporate, ENGlobal Engineering, ENGlobal
Construction, ENGlobal Systems, RPM Engineering, ENGlobal Technical and ENGlobal
Automation are hereinafter called "Borrower") and COMERICA BANK ("Bank").



                                  THE RECITALS

     WHEREAS, ENGlobal Corporation, ENGlobal Corporate, ENGlobal Engineering,
ENGlobal Construction, ENGlobal Systems, RPM Engineering, ENGlobal Automation,
ENGLOBAL TECHNICAL SERVICES, INC., a Texas corporation, formerly known as
ENGLOBAL DESIGN GROUP, INC. ("ENGlobal Technical"), Thermaire, Inc., a Texas
corporation ("Thermaire"), ENGlobal Constant Power, Inc., a Texas corporation
("ENGlobal Constant"), Senftleber & Associates, L.P., a Texas limited
partnership ("Senftleber"), and Bank have entered into that certain Credit
Agreement dated as of July 27, 2004 (as heretofore amended by a First Amendment
effective as of September 30, 2004, a Second Amendment effective as of April 1,
2005 and a Third Amendment effective as of July 31, 2005, and as it may
hereafter be amended, the "Original Credit Agreement"); and

     WHEREAS, ENGlobal Technical, Thermaire, ENGlobal Constant and Senftleber
have been dissolved; and

     WHEREAS, Borrower and Bank desire to amend the Original Credit Agreement as
provided herein;

     NOW, THEREFORE, in consideration of the premises and the mutual covenants
and agreements contained herein and in the Original Credit Agreement, in
consideration of the loans which may hereafter be made by Bank to Borrower, and
for other good and valuable consideration, the receipt and sufficiency of which
are hereby acknowledged, the parties hereto do hereby agree as follows:

<PAGE>

                      ARTICLE I Definitions and References
                      ------------------------------------

     Section 1.1 Terms Defined in the Original Credit Agreement. Unless the
context otherwise requires or unless otherwise expressly defined herein, the
terms defined in the Original Credit Agreement shall have the same meanings
whenever used in this Amendment.

     Section 1.2 Other Defined Terms. Unless the context otherwise requires, the
following terms when used in this Amendment shall have the meanings assigned to
them in this Section 1.2.

     "Amendment" means this Fourth Amendment to Credit Agreement.

     "Amendment Documents" means, collectively, this Amendment and any other
     document required to be delivered by Borrower pursuant to Article III
     hereof.

     "Credit Agreement" means the Original Credit Agreement as amended hereby.

     "Original Omnibus Certificate" means the Omnibus Certificate dated July 27,
     2004 executed and delivered by officers of each Borrower pursuant to the
     Original Credit Agreement.

               ARTICLE II Amendments to Original Credit Agreement
               --------------------------------------------------

     Section 2.1 Section 5.17 of the Original Credit Agreement is hereby amended
by deleting the figure "$2,500,000" and substituting "3,250,000" in place
thereof.

     Section 2.2 The Defined Terms Addendum to the Original Credit Agreement is
hereby amended by deleting the definition of "Agreement" and substituting
therefor the following:

     "'Agreement' shall mean this Credit Agreement, including the Defined Terms
     Addendum and the Loan Terms, Conditions and Procedures Addendum, together
     with all exhibits and schedules, as amended by the First Amendment, Second
     Amendment, Fourth Amendment and as it may be further amended from time to
     time."

     Section 2.3 The Defined Terms Addendum to the Original Credit Agreement is
hereby amended by adding the following definitions thereto:

     "'Fourth Amendment' shall mean that certain Fourth Amendment to Credit
     Agreement executed on March 17, 2006 but effective as of December 31, 2005
     among Borrower and Bank."

                                       2
<PAGE>

     Section 2.4 The Loan Terms, Conditions and Procedures Addendum to the
Original Credit Agreement is hereby amended by deleting Section 1.9(a) and
substituting therefor the following:

     "(a) Letters of Credit. Subject to the terms and conditions of this
     Agreement and the other Loan Documents, the Bank shall, upon request from
     Borrower from time to time prior to the Revolving Credit Maturity Date,
     issue one or more Letters of Credit. The Letter of Credit Liabilities shall
     not exceed $8,000,000 from the date of the Third Amendment until February
     28, 2006 and from February 28, 2006 the Letter of Credit Liabilities shall
     not exceed $3,500,000, provided that, at all times the sum of (i) the
     outstanding principal balance of all Revolving Loans plus (ii) the Letter
     of Credit Liabilities shall not exceed the Revolving Credit Maximum Amount.
     Letters of Credit may be issued to finance working capital needs. Each
     Letter of Credit issued pursuant to this Agreement shall be in a minimum
     amount of $25,000. No Letter of Credit shall have a stated expiration date
     later than thirty (30) days prior to the Revolving Credit Maturity Date."

     Section 2.5 Schedule 3.5 to the Original Credit Agreement is hereby amended
and replaced in its entirety by Schedule 3.5 attached to this Amendment.

                     ARTICLE III Conditions of Effectiveness
                     ---------------------------------------

     Section 3.1 Effective Date. This Amendment shall become effective as of the
date first above written when and only when Bank shall have received, at Bank's
office,

          (a) a duly executed counterpart of this Amendment;

          (b) a duly executed counterpart of the No Oral Agreements of even date
     herewith; and

          (c) each other document to be executed and delivered by Borrower
     pursuant hereto or thereto.

                    ARTICLE IV Representations and Warranties
                    -----------------------------------------

     Section 4.1 Representations and Warranties of Borrower. In order to induce
Bank to enter into this Amendment, Borrower represents and warrants to Bank
that:

          (a) The representations and warranties contained in Section 3 of the
     Original Credit Agreement are true and correct at and as of the time of the
     effectiveness hereof;

          (b) Borrower is duly authorized to execute and deliver this Amendment
     and the other Amendment Documents and is and will continue to be duly
     authorized to borrow and to perform its obligations under the Credit
     Agreement. Borrower has duly taken all corporate action necessary to
     authorize the execution and delivery of this Amendment and the other
     Amendment Documents and to authorize the performance of the obligations of
     Borrower hereunder and thereunder. The Omnibus Certificate of each Borrower
     delivered to Bank on the date of the Original Credit Agreement remains in
     full force and effect, and the specimen signatures of the officers
     contained in the Omnibus Certificate are true and correct;

                                       3
<PAGE>

          (c) The execution and delivery by Borrower of this Amendment and the
     other Amendment Documents, the performance by Borrower of its obligations
     hereunder and thereunder and the consummation of the transactions
     contemplated hereby do not and will not conflict with any provision of law,
     statute, rule or regulation or the bylaws or partnership agreement of
     Borrower, or of any material agreement, judgment, license, order or permit
     applicable to or binding upon Borrower, or result in the creation of any
     lien, charge or encumbrance upon any assets or properties of Borrower.
     Except for those which have been duly obtained, no consent, approval,
     authorization or order of any court or governmental authority or third
     party is required in connection with the execution and delivery by Borrower
     of this Amendment and the other Amendment Documents or to consummate the
     transactions contemplated hereby and thereby;

          (d) When duly executed and delivered, each of this Amendment and the
     other Amendment Documents will be a legal and binding instrument and
     agreement of Borrower, enforceable in accordance with its terms, except as
     limited by bankruptcy, insolvency and similar laws applying to creditors'
     rights generally and by principles of equity applying to creditors' rights
     generally; and

          (e) No material adverse change has occurred in the financial condition
     or businesses or in the consolidated financial condition or businesses of
     Borrower since the date of the most recently delivered financial
     statements.

                             ARTICLE V Miscellaneous
                             -----------------------

     Section 5.1 Ratification of Agreement. The Original Credit Agreement as
hereby amended is hereby ratified and confirmed in all respects. Any reference
to the Credit Agreement in any Loan Document shall be deemed to refer to this
Amendment also. The execution, delivery and effectiveness of this Amendment and
the other Amendment Documents shall not, except as expressly provided herein,
operate as a waiver of any right, power or remedy of Bank under the Credit
Agreement or any other Loan Document nor constitute a waiver of any provision of
the Credit Agreement or any other Loan Document.

     Section 5.2 Consent and Waiver.

          (a) The Bank hereby consents to the dissolution of ENGlobal Technical,
     Thermaire, ENGlobal Constant and Senftleber and waives any non-compliance
     with Section 4.1 of the Original Credit Agreement due to the fact that
     ENGlobal Technical, Thermaire, ENGlobal Constant and Senftleber have been
     dissolved. The Bank agrees that the Borrower shall not be deemed in Default
     solely by reason of the dissolution of ENGlobal Technical, Thermaire,
     ENGlobal Constant and Senftleber.

                                       4
<PAGE>

          (b) The foregoing waiver shall not be deemed to be a waiver by the
     Bank of any other covenant, condition or obligation on the part of the
     Borrower under the Credit Agreement or any other Loan Document. In
     addition, the foregoing waiver shall in no respect evidence any commitment
     by the Bank to grant any future consents or waivers of any covenant,
     condition or obligation on the part of the Borrower under the Credit
     Agreement or any other Loan Document. Any further waivers or consents must
     be specifically agreed to in writing in accordance with Section 7.10 of the
     Credit Agreement.

     Section 5.3 Survival of Agreements. All representations, warranties,
covenants and agreements of Borrower herein shall survive the execution and
delivery of this Amendment and the performance hereof, and shall further survive
until all of the Indebtedness is paid in full. All statements and agreements
contained in any certificate or instrument delivered by Borrower hereunder or
under the Credit Agreement to Bank shall be deemed to constitute representations
and warranties by, or agreements and covenants of, Borrower under this Amendment
and under the Credit Agreement.

     Section 5.4 Loan Documents. This Amendment and the other Amendment
Documents are each a Loan Document, and all provisions in the Credit Agreement
pertaining to Loan Documents apply hereto and thereto.

     Section 5.5 Governing Law. This Amendment shall be governed by and
construed in accordance with the laws of the State of Texas and any applicable
laws of the United States of America in all respects, including construction,
validity and performance.

     Section 5.6 Counterparts; Fax. This Amendment may be separately executed in
counterparts and by the different parties hereto in separate counterparts, each
of which when so executed shall be deemed to constitute one and the same
Amendment. This Amendment may be duly executed by facsimile or other electronic
transmission.

THIS AMENDMENT AND THE OTHER LOAN DOCUMENTS REPRESENT THE FINAL AGREEMENT
BETWEEN THE PARTIES AND MAY NOT BE CONTRADICTED BY EVIDENCE OF PRIOR,
CONTEMPORANEOUS, OR SUBSEQUENT ORAL AGREEMENTS OF THE PARTIES.


     THERE ARE NO UNWRITTEN ORAL AGREEMENTS BETWEEN THE PARTIES.


                     [REMAINDER OF PAGE INTENTIONALLY BLANK]
                     ---------------------------------------












                                        5
<PAGE>

     IN WITNESS WHEREOF, this Amendment is executed on March 17, 2006 but to be
effective as of December 31, 2005.

                                          BORROWER:

                                          ENGLOBAL CORPORATION,
                                          a Nevada corporation


                                          By:
                                          --------------------------------------
                                          R.W. Raiford,
                                          Chief Financial Officer and Treasurer


                                          ENGLOBAL CORPORATE SERVICES, INC.,
                                          a Texas corporation


                                          By:
                                          --------------------------------------
                                          R.W. Raiford,
                                          Chief Financial Officer and Treasurer


                                          ENGLOBAL ENGINEERING, INC.,
                                          a Texas corporation


                                          By:
                                          --------------------------------------
                                          R.W. Raiford,
                                          Chief Financial Officer and Treasurer




<PAGE>



                                          ENGLOBAL CONSTRUCTION
                                          RESOURCES, INC., a Texas corporation


                                          By:
                                          --------------------------------------
                                          R.W. Raiford,
                                          Chief Financial Officer and Treasurer


                                          ENGLOBAL SYSTEMS, INC.,
                                          a Texas corporation


                                          By:
                                          --------------------------------------
                                          R.W. Raiford,
                                          Chief Financial Officer and Treasurer


                                          RPM ENGINEERING, INC.,
                                          a Louisiana corporation


                                          By:
                                          --------------------------------------
                                          R.W. Raiford,
                                          Chief Financial Officer and Treasurer


                                          ENGLOBAL TECHNICAL SERVICES, INC.,
                                          a Texas corporation, formerly known as
                                          ENGlobal Design Group, Inc.


                                          By:
                                          --------------------------------------
                                          R.W. Raiford,
                                          Chief Financial Officer and Treasurer


                                          ENGLOBAL AUTOMATION GROUP, INC.,
                                          a Texas corporation, formerly known as
                                          ENGLOBAL TECHNOLOGIES, INC.


                                          By:
                                          --------------------------------------
                                          R.W. Raiford,
                                          Chief Financial Officer and Treasurer


                                          BANK:

                                          COMERICA BANK


                                          By:
                                          --------------------------------------
                                          James R. McNutt, Sr. Vice President


<PAGE>

                                  SCHEDULE 3.5

                                  Subsidiaries
                                  ------------

Subsidiaries of ENGlobal Corporation:

ENGlobal Corporate Services, Inc., a Texas corporation

ENGlobal Engineering, Inc., a Texas corporation

R.P.M. Engineering, Inc., a Louisiana corporation

ENGlobal Construction Resources, Inc., a Texas corporation

ENGlobal Systems, Inc., a Texas corporation

ENGlobal Automation Group, Inc., a Texas corporation, f/k/a ENGlobal
Technologies, Inc.

ENGlobal Canada ULC, an Alberta corporation

ENGlobal Technical Services, Inc., a Texas corporation, f/k/a ENGlobal Design
Group, Inc.