Exhibit 31.1



CERTIFICATION PURSUANT TO

SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002



In connection with the Annual Report of Analex Corporation (the Company) on Form 10-K for the period ending December 31, 2003 as filed with the Securities and Exchange Commission on the date hereof,
the undersigned, Sterling E. Phillips, Jr., Chief Executive Officer of the Company hereby certifies, pursuant to § 302 of the Sarbanes-Oxley Act of 2002, that:



(1) I have reviewed this annual report on Form 10-K for the period ending December 31, 2003.



(2) Based on my knowledge, the Report does not contain any
untrue statement of a material fact or omit to state a material fact necessary in order to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this
annual report.



(3) Based on my knowledge, the
financial statements, and other financial information included in this annual report, fairly present in all material respects the financial condition, results of operations, and cash flows of the Company as of, and for, the periods presented in this
annual report.



(4) The Companys other
certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the Company and have:



a. designed such disclosure controls and procedures to
ensure that material information relating to the Company and its consolidated subsidiaries is made known to us by others within those entities, particularly during the period in which this annual report is being prepared;



b. evaluated the effectiveness of the Companys
disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures as of the end of the period covered by this report based on such evaluation.



(5) The Companys other certifying officer and I have
disclosed, based on our most recent evaluation, to the Companys auditors and the Audit Committee of the Companys Board of Directors:



a. all significant deficiencies in the design or operation of internal controls which could adversely affect the Companys ability to
record, process, summarize, and report financial data and have identified for the issuers auditors any material weaknesses in internal controls; and



b. any fraud, whether or not material, that involves management or other employees who have a significant role in the Companys
internal controls; and



(6) The Companys
other certifying officer and I have indicated in this annual report whether or not there were significant changes in internal controls or in other factors that could significantly affect internal controls subsequent of the date of their evaluation,
including any corrective actions with regard to significant deficiencies and material weaknesses.



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|/S/ Sterling E. Phillips, Jr.                                 
|Sterling E. Phillips, Jr. Chairman and Chief Executive Officer



March
29, 2004



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