Explanatory Notes  

Introduction

   This Final Amendment to Schedule 13D ("Final Amendment to Schedule 13D"), amends and restates Amendment No. 3 to Schedule 13D filed on December 4, 2008 by the Reporting Persons (as defined in Item 2, below), ("Amendment No. 3 to Schedule 13D"), relating to their beneficial ownership of the common stock, par value $0.001 per share (the "Common Stock") of Information Services Group, Inc. (the "Issuer").

   As previously reported in Amendment No. 3 to Schedule 13D, Integrated Core Strategies (US) LLC held warrants to purchase the Issuer’s Common Stock. The warrants expired on January 31, 2011. Accordingly, as of the close of business on January 31, 2011, the Reporting Persons no longer beneficially own and no longer may be deemed to beneficially own (as the case may be), any shares of the Issuer’s Common Stock.

Item 1.      Security and Issuer.

   The name of the Issuer is Information Services Group, Inc., a Delaware corporation. The address of the Issuer’s principal executive offices is Two Stamford Plaza, 281 Tresser Boulevard, Stamford, Connecticut 06901. This Final Amendment to Schedule 13D relates to the Issuer’s Common Stock.

Item 2.      Identity and Background.

   (a)-(c), (f).  This Final Amendment to Schedule 13D is being filed by Integrated Core Strategies (US) LLC, a Delaware limited liability company ("Integrated Core Strategies").

   Millennium Management LLC, a Delaware limited liability company ("Millennium Management"), is the general partner of the managing member of Integrated Core Strategies.

   Israel A. Englander, a United States citizen ("Mr. Englander"), is the managing member of Millennium Management.

   Integrated Core Strategies, Millennium Management and Mr. Englander will be collectively referred to as the reporting persons ("Reporting Persons") in this Final Amendment to Schedule 13D.

   The business address for Integrated Core Strategies and Mr. Englander is c/o Millennium Management LLC, 666 Fifth Avenue, New York, New York 10103. The business address for Millennium Management is 666 Fifth Avenue, New York, New York 10103.

   (d)  During the last five years, none of the Reporting Persons have been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors).

   (e)  On December 1, 2005, Millennium Management and Mr. Englander, together with Millennium Partners, L.P. and certain related persons and entities, entered into settlements with the Securities and Exchange Commission ("SEC") and the Attorney General of the State of New York (the "NYAG") relating to allegations that Millennium Partners had engaged in a pattern of deceptive "market timing" of mutual fund shares in years prior to 2004 and, in the case of the settlement with the NYAG only, had failed to take adequate steps to prevent a trader from engaging in mutual fund "late trading" in violation of firm policy. The parties neither admitted nor denied the allegations or findings (except as to jurisdiction) but consented to the entry of findings. The SEC proceedings are In the Matter of Millennium Partners, L.P., et al. Securities Act Release No. 8639 (December 1, 2005), available at www.sec.gov. Contemporaneously, the NYAG issued an Assurance of Discontinuance relating to the claims and findings of that office.

   Neither the Reporting Persons nor any other party admitted or denied any of the allegations or findings in these matters. The remedies included disgorgement by the entities of approximately $148 million of mutual fund trading profits, civil penalties aggregating approximately $32.15 million (with approximately $30 million being paid by Mr. Englander), an administrative order to cease and desist from violations of the antifraud provisions of the Securities Act of 1933 and the Securities Exchange Act of 1934 (the "Exchange Act"), and prophylactic relief.

Item 3.      Source and Amount of Funds or Other Consideration.

   As of the close of business on January 31, 2011, the Reporting Persons no longer beneficially own and no longer may be deemed to beneficially own (as the case may be), any shares of the Issuer’s Common Stock.

Item 4.       Purpose of Transaction.

   The Reporting Persons are engaged in the investment business, and in the course of that business employ the services of a number of portfolio managers, each of whom independently employs a separate and distinct trading strategy. A portion of the securities of the Issuer held by the Reporting Persons may be managed by portfolio managers who engage in event-, risk- or merger-arbitrage or fundamental strategies.

   In pursuing their business, some of the Reporting Persons’ portfolio managers analyze the operations, capital structure and markets of companies, including the Issuer, on a continuous basis, through analysis of documentation and discussions with knowledgeable industry and market observers and with representatives of such companies (often at the invitation of management). (Other portfolio managers, who may also have long or short positions in securities of the Issuer from time to time, trade pursuant to quantitative or other strategies that do not involve such analyses and discussions.) From time to time, one or more of the portfolio managers may hold discussions with third parties or with management of issuers (including the Issuer) in which the portfolio managers may suggest or take a position with respect to potential changes in the operations, management or capital structure of such companies as a means of enhancing shareholder value. Such suggestions or positions may relate to one or more transactions of the type specified in clauses (a) through (j) of Item 4 of Schedule 13D of the Exchange Act, including, without limitation, such matters as disposing of or selling all or a portion of the company or acquiring another company or business, changing operating or marketing strategies, adopting or not adopting certain types of anti-takeover measures and restructuring the Issuer’s capitalization or dividend policy.

   Except as set forth above, the Reporting Persons do not have any present plans or proposals that relate to or would result in any of the actions required to be described in Item 4 of this Final Amendment to Schedule 13D. Each of the Reporting Persons may, at any time, review or reconsider its position with respect to the Issuer and formulate plans or proposals with respect to any of such matters, but has no present intention of doing so.

Item 5.      Interest in Securities of the Issuer.

   (a)  As of the close of business on January 31, 2011, the Reporting Persons no longer beneficially own and no longer may be deemed to beneficially own (as the case may be), any shares of the Issuer’s Common Stock.

   (c)  Transactions in the Issuer’s Common Stock during the past 60 days: None.

   (d)  No person other than the Reporting Persons is known to have the right to receive, or the power to direct the receipt of, dividends from, or proceeds from the sale of the Issuer’s Common Stock reported in this Final Amendment to Schedule 13D.

   (e)  On January 31, 2011, the Reporting Persons ceased to beneficially own or be deemed to beneficially own (as the case may be) in excess of 5% of the Issuer’s Common Stock.

Item 6.      Contracts, Arrangements, Understandings or Relationships with Respect to Securities of the Issuer.

   In connection with arrangements with Integrated Core Strategies’ prime brokers, such prime brokers are permitted to lend securities in Integrated Core Strategies’ accounts to the extent permitted by debit balances in such accounts. Integrated Core Strategies generally will not have any knowledge of the specific loans made by such prime brokers. In the ordinary course of business, Integrated Core Strategies (or its prime brokers), may borrow securities to satisfy delivery obligations arising from short sales. However, it should be noted that shares lent by Integrated Core Strategies’ prime brokers, may not be able to be recalled in advance of an applicable record date and thus, such loaned shares may not be able to be voted by Integrated Core Strategies.

   There are no other contracts, arrangements, understandings or relationships among the Reporting Persons, or between the Reporting Persons and any other person, with respect to the securities of the Issuer.

Item 7.      Material to Be Filed as Exhibits.

   Exhibit I:  Joint Filing Agreement, dated as of January 31, 2011, by and among Integrated Core Strategies (US) LLC, Millennium Management LLC and Israel A. Englander.

SIGNATURE

   After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.