SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 Fortissimo Acquisition Corp. ------------------------------------------------------ (Name of Issuer) Common Stock, par value $0.0001 per share ------------------------------------------------------ (Title of Class of Securities) 34958F107 ------------------------------------------------------ (CUSIP NUMBER) November 22, 2006 ------------------------------------------------------ (Date of event which requires filing of this statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [ ] Rule 13d-1(b) [X] Rule 13d-1(c) [ ] Rule 13d-1(d) The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the notes). Page 1 of 14 Pages CUSIP No. 34958F107 13G Page 2 of 14 Pages -------------------------------------------------------------------------------- (1) NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS D.B. Zwirn & Co., L.P. 20-0597442 -------------------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP ** (a) [X] (b) [ ] -------------------------------------------------------------------------------- (3) SEC USE ONLY -------------------------------------------------------------------------------- (4) CITIZENSHIP OR PLACE OF ORGANIZATION Delaware -------------------------------------------------------------------------------- NUMBER OF (5) SOLE VOTING POWER 0 SHARES ----------------------------------------------------------------- BENEFICIALLY (6) SHARED VOTING POWER 370,000 Shares OWNED BY ----------------------------------------------------------------- EACH (7) SOLE DISPOSITIVE POWER 0 REPORTING ----------------------------------------------------------------- PERSON WITH (8) SHARED DISPOSITIVE POWER 370,000 Shares -------------------------------------------------------------------------------- (9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 370,000 Shares -------------------------------------------------------------------------------- (10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ** [ ] -------------------------------------------------------------------------------- (11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 6.31% -------------------------------------------------------------------------------- (12) TYPE OF REPORTING PERSON ** PN -------------------------------------------------------------------------------- ** SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 34958F107 13G Page 3 of 14 Pages -------------------------------------------------------------------------------- (1) NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS D.B. Zwirn Special Opportunities Fund, Ltd. -------------------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP ** (a) [X] (b) [ ] -------------------------------------------------------------------------------- (3) SEC USE ONLY -------------------------------------------------------------------------------- (4) CITIZENSHIP OR PLACE OF ORGANIZATION Cayman Islands, British West Indies -------------------------------------------------------------------------------- NUMBER OF (5) SOLE VOTING POWER 0 SHARES ----------------------------------------------------------------- BENEFICIALLY (6) SHARED VOTING POWER 225,700 Shares OWNED BY ----------------------------------------------------------------- EACH (7) SOLE DISPOSITIVE POWER 0 REPORTING ----------------------------------------------------------------- PERSON WITH (8) SHARED DISPOSITIVE POWER 225,700 Shares -------------------------------------------------------------------------------- (9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 225,700 Shares -------------------------------------------------------------------------------- (10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ** [ ] -------------------------------------------------------------------------------- (11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 3.85% -------------------------------------------------------------------------------- (12) TYPE OF REPORTING PERSON ** CO -------------------------------------------------------------------------------- ** SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 34958F107 13G Page 4 of 14 Pages -------------------------------------------------------------------------------- (1) NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS D.B. Zwirn Special Opportunities Fund, L.P. 73-1637217 -------------------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP ** (a) [X] (b) [ ] -------------------------------------------------------------------------------- (3) SEC USE ONLY -------------------------------------------------------------------------------- (4) CITIZENSHIP OR PLACE OF ORGANIZATION Delaware -------------------------------------------------------------------------------- NUMBER OF (5) SOLE VOTING POWER 0 SHARES ----------------------------------------------------------------- BENEFICIALLY (6) SHARED VOTING POWER 144,300 Shares OWNED BY ----------------------------------------------------------------- EACH (7) SOLE DISPOSITIVE POWER 0 REPORTING ----------------------------------------------------------------- PERSON WITH (8) SHARED DISPOSITIVE POWER 144,300 Shares -------------------------------------------------------------------------------- (9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 144,300 Shares -------------------------------------------------------------------------------- (10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ** [ ] -------------------------------------------------------------------------------- (11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 2.46% -------------------------------------------------------------------------------- (12) TYPE OF REPORTING PERSON ** PN -------------------------------------------------------------------------------- ** SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 34958F107 13G Page 5 of 14 Pages -------------------------------------------------------------------------------- (1) NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS DBZ GP, LLC 42-1657316 -------------------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP ** (a) [X] (b) [ ] -------------------------------------------------------------------------------- (3) SEC USE ONLY -------------------------------------------------------------------------------- (4) CITIZENSHIP OR PLACE OF ORGANIZATION Delaware -------------------------------------------------------------------------------- NUMBER OF (5) SOLE VOTING POWER 0 SHARES ----------------------------------------------------------------- BENEFICIALLY (6) SHARED VOTING POWER 370,000 Shares OWNED BY ----------------------------------------------------------------- EACH (7) SOLE DISPOSITIVE POWER 0 REPORTING ----------------------------------------------------------------- PERSON WITH (8) SHARED DISPOSITIVE POWER 370,000 Shares -------------------------------------------------------------------------------- (9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 370,000 Shares -------------------------------------------------------------------------------- (10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ** [ ] -------------------------------------------------------------------------------- (11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 6.31% -------------------------------------------------------------------------------- (12) TYPE OF REPORTING PERSON ** OO -------------------------------------------------------------------------------- ** SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 34958F107 13G Page 6 of 14 Pages -------------------------------------------------------------------------------- (1) NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS Zwirn Holdings, LLC 30-0080444 -------------------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP ** (a) [X] (b) [ ] -------------------------------------------------------------------------------- (3) SEC USE ONLY -------------------------------------------------------------------------------- (4) CITIZENSHIP OR PLACE OF ORGANIZATION Delaware -------------------------------------------------------------------------------- NUMBER OF (5) SOLE VOTING POWER 0 SHARES ----------------------------------------------------------------- BENEFICIALLY (6) SHARED VOTING POWER 370,000 Shares OWNED BY ----------------------------------------------------------------- EACH (7) SOLE DISPOSITIVE POWER 0 REPORTING ----------------------------------------------------------------- PERSON WITH (8) SHARED DISPOSITIVE POWER 370,000 Shares -------------------------------------------------------------------------------- (9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 370,000 Shares -------------------------------------------------------------------------------- (10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ** [ ] -------------------------------------------------------------------------------- (11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 6.31% -------------------------------------------------------------------------------- (12) TYPE OF REPORTING PERSON ** OO -------------------------------------------------------------------------------- ** SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 34958F107 13G Page 7 of 14 Pages -------------------------------------------------------------------------------- (1) NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS Daniel B. Zwirn -------------------------------------------------------------------------------- (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP ** (a) [X] (b) [ ] -------------------------------------------------------------------------------- (3) SEC USE ONLY -------------------------------------------------------------------------------- (4) CITIZENSHIP OR PLACE OF ORGANIZATION United States -------------------------------------------------------------------------------- NUMBER OF (5) SOLE VOTING POWER 0 SHARES ----------------------------------------------------------------- BENEFICIALLY (6) SHARED VOTING POWER 370,000 Shares OWNED BY ----------------------------------------------------------------- EACH (7) SOLE DISPOSITIVE POWER 0 REPORTING ----------------------------------------------------------------- PERSON WITH (8) SHARED DISPOSITIVE POWER 370,000 Shares -------------------------------------------------------------------------------- (9) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 370,000 Shares -------------------------------------------------------------------------------- (10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ** [ ] -------------------------------------------------------------------------------- (11) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 6.31% -------------------------------------------------------------------------------- (12) TYPE OF REPORTING PERSON ** IN -------------------------------------------------------------------------------- ** SEE INSTRUCTIONS BEFORE FILLING OUT! CUSIP No. 34958F107 13G Page 8 of 14 Pages Item 1. (a) Name of Issuer Fortissimo Acquisition Corp. (the "Issuer") (b) Address of Issuer's Principal Executive Offices: 14 Hamelacha Street, Park Afek Rosh Haayin, Israel 48091 Item 2(a). Name of Person Filing Item 2(b). Address of Principal Business Office Item 2(c). Citizenship D.B. Zwirn & Co, L.P. 745 Fifth Avenue, 18th Floor New York, NY 10151 Citizenship: Delaware D.B. Zwirn Special Opportunities Fund, L.P. c/o D.B. Zwirn & Co., L.P. 745 Fifth Avenue, 18th Floor New York, NY 10151 Citizenship: Delaware D.B. Zwirn Special Opportunities Fund, Ltd. c/o Goldman Sachs (Cayman) Trust, Limited P.O. Box 896 George Town Harbour Centre, 2nd Floor Grand Cayman, Cayman Islands British West Indies Citizenship: Cayman Islands, British West Indies DBZ GP, LLC c/o D.B. Zwirn & Co., L.P. 745 Fifth Avenue, 18th Floor New York, NY 10151 Citizenship: Delaware Zwirn Holdings, LLC c/o D.B. Zwirn & Co., L.P. 745 Fifth Avenue, 18th Floor New York, NY 10151 Citizenship: Delaware Daniel B. Zwirn c/o D.B. Zwirn & Co., L.P. 745 Fifth Avenue, 18th Floor New York, NY 10151 Citizenship: United States (d) Title of Class of Securities Common Stock, par value $0.0001 per share ("Shares") CUSIP No. 34958F107 13G Page 9 of 14 Pages (e) CUSIP Number 34958F107 Item 3. If this statement is filed pursuant to Rule 13d-1(b), or 13d-2(b), check whether the person filing is a: (a) [ ] Broker or dealer registered under Section 15 of the Act (15 U.S.C. 78o). (b) [ ] Bank as defined in Section 3(a)(6) of the Act (15 U.S.C. 78c). (c) [ ] Insurance company as defined in Section 3(a)(19) of the Act (15 U.S.C. 78c). (d) [ ] Investment company registered under Section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8). (e) [ ] An investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E); (f) [ ] An employee benefit plan or endowment fund in accordance with Rule 13d-1(b)(1)(ii)(F); (g) [ ] A parent holding company or control person in accordance with Rule 13d-1(b)(1)(ii)(G); (h) [ ] A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813); (i) [ ] A church plan that is excluded from the definition of an investment company under Section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3); (j) [ ] Group, in accordance with Rule 13d-1(b)(1)(ii)(J). If this statement is filed pursuant to Rule 13d-1(c), check this box. [x] Item 4. Ownership (a) Amount Beneficially Owned As of the date of this filing, D.B. Zwirn & Co., L.P., DBZ GP, LLC, Zwirn Holdings, LLC, and Daniel B. Zwirn may each be deemed the beneficial owner of (i) 144,300 Shares owned by D.B. Zwirn Special Opportunities Fund, L.P. and (ii) 225,700 Shares owned by D.B. Zwirn Special Opportunities Fund, Ltd. (each entity referred to in (i) through (ii) is herein referred to as a "Fund" and, collectively, as the "Funds"). D.B. Zwirn & Co., L.P. is the manager of each of the Funds, and consequently has voting control and investment discretion over the Shares held by each of the Funds. Daniel B. Zwirn is the managing member of and thereby controls Zwirn Holdings, LLC, which in turn is the managing member of and thereby controls DBZ GP, LLC, which in turn is the general partner of and thereby controls D.B. Zwirn & Co., L.P. The foregoing should not be construed in and of itself as an admission by any Reporting Person as to beneficial ownership of Shares owned by another Reporting Person. In addition, each of D.B. Zwirn & Co., L.P., DBZ GP, LLC, Zwirn Holdings, LLC, and Daniel B. Zwirn disclaims beneficial ownership of the Shares held by the Funds. CUSIP No. 34958F107 13G Page 10 of 14 Pages (b) Percent of Class Based upon the Issuer's Current Report on Form 10-KSB filed on March 29, 2007, there were 5,868,334 Shares outstanding as of March 28, 2007. Therefore, (i) D.B. Zwirn Special Opportunities Fund, L.P. owns approximately 2.46% of the outstanding Shares, (ii) D.B. Zwirn Special Opportunities Fund, Ltd. owns approximately 3.85% of the outstanding Shares and (iii) each of D.B. Zwirn & Co., L.P., DBZ GP, LLC, Zwirn Holdings, LLC, and Daniel B. Zwirn may be deemed to beneficially own 6.31% of the outstanding Shares. The foregoing should not be construed in and of itself as an admission by any Reporting Person as to beneficial ownership of Shares owned by another Reporting Person. (c) Number of shares as to which such person has: (i) Sole power to vote or to direct the vote: See Item 4(a) (ii) Shared power to vote or to direct the vote See Item 4(a) (iii) Sole power to dispose or to direct the disposition of See Item 4(a) (iv) Shared power to dispose or to direct the disposition of See Item 4(a) Item 5. Ownership of Five Percent or Less of a Class Not applicable. Item 6. Ownership of More than Five Percent on Behalf of Another Person. Not applicable. Item 7. Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company Not applicable. Item 8. Identification and Classification of Members of the Group See Exhibit I. Item 9. Notice of Dissolution of Group Not applicable Item 10. Certification By signing below each of the undersigned certifies that, to the best of its knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose CUSIP No. 34958F107 13G Page 11 of 14 Pages or effect. Exhibits: Exhibit I: Joint Filing Agreement, dated as of May 4, 2007, by and among D.B. Zwirn Special Opportunities Fund, L.P., D.B. Zwirn Special Opportunities Fund, Ltd., D.B. Zwirn & Co., L.P., DBZ GP, LLC, Zwirn Holdings, LLC, and Daniel B. Zwirn. Exhibit II: Power of Attorney of Daniel B. Zwirn, dated February 5, 2007 CUSIP No. 34958F107 13G Page 12 of 14 Pages SIGNATURE After reasonable inquiry and to the best of its knowledge and belief, each of the undersigned certifies that the information with respect to it set forth in this statement is true, complete, and correct. Dated: May 4, 2007 D.B. ZWIRN SPECIAL OPPORTUNITIES D.B. ZWIRN SPECIAL OPPORTUNITIES FUND, LTD. FUND, L.P. By: D.B. Zwirn & Co., L.P. By: D.B. Zwirn & Co., L.P. By: DBZ GP, LLC, By: DBZ GP, LLC, its General Partner its General Partner By: Zwirn Holdings, LLC, By: Zwirn Holdings, LLC, its Managing Member its Managing Member D.B. ZWIRN & CO., L.P. DBZ GP, LLC By: DBZ GP, LLC, By: Zwirn Holdings, LLC, its General Partner its Managing Member By: Zwirn Holdings, LLC, its Managing Member ZWIRN HOLDINGS, LLC By: /s/ Lawrence D. Cutler ---------------------------- Name: Lawrence D. Cutler Title: Authorized Signatory /s/ Lawrence D. Cutler ------------------------------ LAWRENCE D. CUTLER, as Attorney-in- Fact for Daniel B. Zwirn CUSIP No. 34958F107 13G Page 13 of 14 Pages EXHIBIT I JOINT FILING AGREEMENT This will confirm the agreement by and among the undersigned that the Schedule 13G filed with the Securities and Exchange Commission on or about the date hereof with respect to the beneficial ownership by the undersigned of the common stock of Israel Growth Partners Acquisition Corp. is being filed, and all amendments thereto will be filed, on behalf of each of the persons and entities named below in accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended. This Agreement may be executed in two or more counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same instrument. Dated: May 4, 2007 D.B. ZWIRN SPECIAL OPPORTUNITIES D.B. ZWIRN SPECIAL OPPORTUNITIES FUND, L.P. FUND, LTD. By: D.B. Zwirn & Co., L.P. By: D.B. Zwirn & Co., L.P. By: DBZ GP, LLC, By: DBZ GP, LLC, its General Partner its General Partner By: Zwirn Holdings, LLC, By: Zwirn Holdings, LLC, its Managing Member its Managing Member D.B. ZWIRN & CO., L.P. DBZ GP, LLC By: DBZ GP, LLC, By: Zwirn Holdings, LLC, its General Partner its Managing Member By: Zwirn Holdings, LLC, its Managing Member ZWIRN HOLDINGS, LLC By: /s/ Lawrence D. Cutler ---------------------------- Name: Lawrence D. Cutler Title: Authorized Signatory /s/ Lawrence D. Cutler ------------------------------ LAWRENCE D. CUTLER, as Attorney-in- Fact for Daniel B. Zwirn CUSIP No. 34958F107 13G Page 14 of 14 Pages EXHIBIT II POWER OF ATTORNEY The undersigned hereby appoints David C. Lee and Lawrence D. Cutler, or either of them, his true and lawful attorney-in fact and agent to execute and file with the Securities and Exchange Commission any Schedule 13D, Schedule 13G, any amendments thereto and any related documentation which may be required to be filed in his individual capacity as a result of the undersigned's beneficial ownership of, or participation in a group with respect to, securities directly or indirectly beneficially owned by D.B. Zwirn & Co, L.P. or any of its affiliates, and granting unto said attorney-in-fact and agent full power and authority to do and perform each and every act and thing which he might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agent may lawfully do or cause to be done by virtue hereof. The authority of David C. Lee and Lawrence D. Cutler, or either of them, under this Power of Attorney shall continue with respect to the undersigned until the undersigned is no longer required to file Schedule 13Ds or Schedule 13Gs unless revoked earlier in writing. Date: February 5, 2007 /s/ Daniel B. Zwirn ---------------------------- Daniel B. Zwirn