SECURITIES AND EXCHANGE COMMISSION
  Washington, D.C.  20549
  ______________________
  FORM 6-K
  REPORT OF FOREIGN PRIVATE ISSUER
  Pursuant to Rule 13a-16 or 15d-16 of the
  Securities Exchange Act of 1934
  For the month of May, 2010
  Commission File Number: 000-21742
  Acergy S.A.
 (Translation of registrant’s name into English)
  
  200 Hammersmith Road
 London, W6 7DL
 England
 (Address of principal executive offices)
  Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.
  Form 20-F  x

Form 40-F   o
  Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):   __
  Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):   __
  Indicate by check mark whether by furnishing the information contained in this Form, the registrant is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.
  Yes  o

No  x
 
 If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b):  82-________
  
   
  Attached herewith as Exhibit 99.1 is a press release, dated May 25, 2010, whereby Acergy S.A. announced the award of a contract valued at approximately $120 million, offshore Nigeria in shallow water depths.
 
 This contract includes the removal of existing risers and the installation of approximately 15km of new pipelines and associated risers, together with associated diving and hook-up activities. Construction engineering will commence immediately, with offshore installation due to commence in Q1 2011.
 
 The information set forth above shall be deemed to be incorporated by reference into the prospectuses forming a part of our Registration Statements on Form S-8 (No. 33-85168, No. 333-09292, No. 333-74321, No. 333-124983, No. 333-124997 and No. 333-166574) and our Registration Statements on Form F-3 and Form F-3/A (No. 333-86288) and to be a part of such prospectuses from the date of the filing thereof.  The attached press release shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, except as shall be expressly set forth by specific reference in such filing.
 
 Certain statements set forth above and contained in the press release furnished pursuant to this Form 6-K may include “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. These statements may be identified by the use of words like “anticipate,” “believe,” “estimate,” “expect,” “intend,” “may,” “plan,” “project,” “will,” “should,” “seek,” and similar expressions.  These statements include, but are not limited to, statements as to the value of the awarded contract, statements as to the date of commencement and completion of the awarded contract and statements as to the scope and location of our work thereunder.  The forward-looking statements reflect our current views and assumptions and are subject to risks and uncertainties.  The following factors, and others which are discussed in our public filings and submissions with the U.S. Securities and Exchange Commission, are among those that may cause actual and future results and trends to differ materially from our forward-looking statements: our ability to recover costs on significant projects; the general economic conditions and competition in the markets and businesses in which we operate; our relationship with significant clients; the outcome of legal proceedings or governmental enquiries; uncertainties inherent in operating internationally; the timely delivery of ships on order and the timely completion of ship conversion programs; the impact of laws and regulations; and operating hazards, including spills and environmental damage. Many of these factors are beyond our ability to control or predict. Given these factors, you should not place undue reliance on the forward-looking statements.
 
  
  SIGNATURE
  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, thereunto duly authorized.
  ACERGY S.A.Date:   May 26, 2010
By:
/s/ Simon CroweName:
Simon CroweTitle:
Chief Financial Officer