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                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

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                                    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 June, 2009

                        Commission File Number: 000-21742

                                   Acergy S.A.
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                 (Translation of registrant's name into English)

                              200 Hammersmith Road
                                 London, W6 7DL
                                     England
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                    (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 [ ]

     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 [ ]                    No [X]

     If "Yes" is marked, indicate below the file number assigned to the
registrant in connection with Rule 12g3-2(b): 82-_______

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Attached herewith as Exhibit 99.1 is a press release, issued on June 26, 2009,
whereby Acergy S.A. (the "Company") announced today that an Extraordinary
Meeting of Shareholders (the "Meeting") will take place at the offices of SGG
S.A., 412F, route d'Esch, L-2086 Luxembourg on August 4, 2009 at 2 p.m. local
time for the purpose of considering resolutions 9 and 10 of the Annual General
Meeting Agenda.

It was noted at the Annual General Meeting of Shareholders on May 22, 2009 that
the required quorum of 50% of the outstanding shares for resolutions 9 and 10
was not present and this meeting was therefore not able to consider these
resolutions.

The Board of Directors therefore decided to call an Extraordinary General
Meeting to consider resolutions 9 and 10. At this Meeting there is no
requirement for quorum. However, to approve the proposed resolutions a 2/3rd
majority of the votes cast at the Meeting will be required.

Proxies already received for the May 22, 2009 Annual General Meeting remain
valid for this Meeting and Shareholders of record as of Tuesday, March 31, 2009
are entitled to vote at the Meeting. Those Shareholders who have not yet cast
their votes may do so by submitting the already distributed proxy card as
instructed, or alternatively to attend the Meeting in Luxembourg at the above
address. The new deadline for submission of votes for American Depositary
Receipt holders is July 22, 2009 and for holders of Common Shares July 24, 2009.

The Board expects to call an Extraordinary General Meeting later in the year to
consider a proposal for updated Articles of Incorporation and a new Long-Term
Incentive Plan. In addition, the Board expects to propose additional directors.

The Board's Governance and Nomination Committee process of identifying and
communicating with potential additional directors is progressing well.

Attached herewith as Exhibits 99.2, 99.3, 99.4, 99.5, 99.6 and 99.7,
respectively, are the following materials regarding the Meeting:

   1.    Chairman's letter dated June 26, 2009 inter alia advising of the
         Meeting.

   2.    Notice of the Meeting on August 4, 2009.

   3.    Letter from DnB NOR Bank ASA to Shareholders of the Company regarding
         voting using the proxy card attached thereto.

   4.    Blank form of Proxy Card for holders of Common Shares of the Company.

   5.    Depositary's Notice (of Deutsche Bank Trust Company Americas) re the
         Meeting of Acergy S.A.

   6.    Blank form of front and back of Proxy Card/Voting Instructions for
         American Depositary Shares (ADSs).

The above materials were mailed on June 26, 2009 by Deutsche Bank Trust Company
Americas to all holders of American Depositary Shares (ADSs) (each of which
represents one Common Share of the Company) of record as of March 31, 2009.

Certain statements set forth above and contained in the press release and above
materials 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

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statements include, but are not limited to, statements as to the expected timing
and purposes of the Meeting and other extraordinary general meetings. 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.

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                                    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: July 2, 2009                                By: /s/ Stuart Jackson
                                                      --------------------------
                                                  Name:  Stuart Jackson
                                                  Title: Chief Financial Officer
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                                  Exhibit Index

99.1    Press Release dated June 26, 2009 Acergy S.A. Notice of Extraordinary
        General Meeting of Shareholders.

99.2    Chairman's letter dated June 26, 2009.

99.3    Notice of Extraordinary General Meeting of Shareholders on
        August 4, 2009.

99.4    Letter from DnB NOR Bank ASA to Shareholders of Acergy S.A.

99.5    Blank form of Proxy Card for holders of Common Shares of the Company.

99.6    Depositary's Notice (of Deutsche Bank Trust Company Americas) re the
        Meeting of Acergy S.A.

99.7    Blank form of front and back of Proxy Card/Voting Instructions for
        American Depositary Shares.