SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549

                      ----------------------------------

                                   FORM 8-K

                                CURRENT REPORT

                      PURSUANT TO SECTION 13 OR 15(d) OF
                      THE SECURITIES EXCHANGE ACT OF 1934


       Date of Report (Date of earliest event reported): August 9, 2006

                            ZOLTEK COMPANIES, INC.
            (Exact name of registrant as specified in its charter)


   MISSOURI                         0-20600                       43-1311101
(State or other                (Commission File                (I.R.S. Employer
jurisdiction of                     Number)                     Identification
 organization)                                                      Number)


3101 MCKELVEY ROAD
ST. LOUIS, MISSOURI                                                 63044
(Address of principal executive offices)                          (Zip Code)

                                (314) 291-5110
             (Registrant's telephone number, including area code)

                                NOT APPLICABLE
         (Former name or former address if changed since last report)

                      ----------------------------------

Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the Registrant under any of
the following provisions:

[ ] Written communications pursuant to Rule 425 under the Securities Act
    (17 CFR 230.425)

[ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act
    (17 CFR 240.14a-12)

[ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the
    Exchange Act (17 CFR 240.14d-2(b))

[ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the
    Exchange Act (17 CFR 240.13e-4(c))





ITEM 2.02         RESULTS OF OPERATIONS AND FINANCIAL CONDITION.

                  On August 9, 2006, Zoltek Companies, Inc. (the "Registrant")
issued a press release announcing its financial results for the quarter ended
June 30, 2006. A copy of the press release is attached hereto and incorporated
herein as Exhibit 99. This Form 8-K, including Exhibit 99 attached hereto,
shall not be deemed "filed" for purposes of Section 18 of the Securities
Exchange Act of 1934, as amended, or otherwise subject to the liabilities of
that section.


ITEM  9.01        FINANCIAL STATEMENTS AND EXHIBITS.

                  (c) The following exhibit is filed as part of this report:

                  Exhibit Number                     Description
                  --------------                     -----------

                           99               Press Release issued by the Company
                                            on August 9, 2006.


                                            *     *     *






                                  SIGNATURES

         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.

Dated:   August 11, 2006

                                                    ZOLTEK COMPANIES, INC.



                                                    By /s/ Kevin Schott
                                                       ------------------------
                                                       Kevin Schott
                                                       Chief Financial Officer





                                 EXHIBIT INDEX

 Exhibit
 Number                                             Description
 ------                                             -----------

  99                                     Press Release, dated August 9, 2006.