UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (CHECK ONE): / X / Form 10-KSB / / Form 20-F / / Form 11-K / / Form 10-QSB / / Form N-SAR For Period Ended: December 31, 2005 / / Transition Report on Form 10-K / / Transition Report on Form 20-F / / Transition Report on Form 11-K / / Transition Report on Form 10-Q / / Transition Report on Form N-SAR For the Transition Period Ended: ______________________________ -------------------------------------------------------------------------------- READ INSTRUCTION (ON BACK PAGE) BEFORE PREPARING FORM. PLEASE PRINT OR TYPE. NOTHING IN THIS FORM SHALL BE CONSTRUED TO IMPLY THAT THE COMMISSION HAS VERIFIED ANY INFORMATION CONTAINED HEREIN. -------------------------------------------------------------------------------- If the notification relates to a portion of the filing checked above, identify the Item (s) to which the notification relates: PART 1 - REGISTRANT INFORMATION Sonex Research, Inc. -------------------------------------------------------------------------------- Full Name of Registrant -------------------------------------------------------------------------------- Former Name if Applicable 23 Hudson Street -------------------------------------------------------------------------------- Address of Principal Executive Office (Street and Number) Annapolis, MD 21401 -------------------------------------------------------------------------------- City, State and Zip Code PART II - RULES 12b-25(b) AND (c) If the subject report could not be filed without unreasonable effort or expense and the registrant seeks relief pursuant to Rule 12b-25(b), the following should be completed. (Check box if appropriate) /X/ (a) The reasons described in reasonable detail in Part III of this form could not be eliminated without unreasonable effort or expense. / / (b) The subject annual report, semi-annual report, transition report on Form 10-K, Form 20-F, Form 11-K or Form N-SAR, or portion thereof, will be filed on or before the fifteenth calendar day following the prescribed due date; or the subject quarterly report or transition report on Form 10-Q, or portion thereof will be filed on or before the fifth calendar day following the prescribed due date; and / / (c) The accountant's statement or other exhibit required by Rule 12b- 25(c) has been attached if applicable. PART III - NARRATIVE State below in reasonable detail the reasons why Forms 10-K, 20-F, 11-K, 10-Q, N-SAR, or the transition report or portion thereof, could not be filed within the prescribed time period. The Registrant has not filed its Annual Report on Form 10-KSB for the year ended December 31, 2004 because it lacks the financial resources to engage its independent registered public accountanting firm, Hausser + Taylor LLC, to conduct an audit of the related financial statements, and because it lacks the staffing to prepare the Form 10-KSB itself due in large part to the amount of time management has spent in responding to litigation. For the same reasons, the Company has been unable to file its Quarterly Reports on Form 10-QSB for March 31, 2005, June 30, 2005 and September 30, 2005, nor will it be able to file its Annual Report on Form 10-KSB for the year ended December 31, 2005 by the extended due date. The Registrant will use its best efforts to file the Forms 10-KSB and Forms 10-QSB as soon as its financial resources and staffing permit. The Registrant, however, is unable to predict when it will be able to make these filings and there can be no assurance that the filings will be made at all. In fact, via letter dated March 29, 2006, Hausser + Taylor LLC informed the Registrant and the SEC of their decision to resign as auditor. PART IV - OTHER INFORMATION (1) Name and telephone number of person to contact in regard to this notification. George E. Ponticas 410 266-5556 --------------------------------------------------------------------------- (Name) (Area code) (Telephone number) (2) Have all other periodic reports required under Section 13 or 15(d) of the Securities Exchange Act of 1934 or Section 30 of the Investment Company Act of 1940 during the preceding 12 months or for such shorter period that the registrant was required to file such report(s) been filed? If answer is no, identify report(s). / / Yes / X / No --------------------------------------------------------------------------- (3) Is it anticipated that any significant change in results of operations from the corresponding period for the last fiscal year will be reflected by the earnings statements to be included in the subject report or portion thereof? / / Yes / X / No If so, attach an explanation of the anticipated change, both narratively and quantitatively, and, if appropriate, state the reasons why a reasonable estimate of the results cannot be made. Sonex Research, Inc. ----------------------------------------------------------------- (Name of Registrant as Specified in Charter) has caused this notification to be signed on its behalf by the undersigned hereunto duly authorized. Date: March 29, 2006 By: /s/ George E. Ponticas ------------------- ------------------------------------------- George E. Ponticas, Chief Financial Officer INSTRUCTION: The form may be signed by an executive officer of the registrant or by any other duly authorized representative. The name and title of the person signing the form shall be typed or printed beneath the signature. If the statement is signed on behalf of the registrant by an authorized representative (other than an executive officer), evidence of the representative's authority to sign on behalf of the registrant shall be filed with the form. __________________________________ATTENTION____________________________________ INTENTIONAL MISSTATEMENTS OR OMMISSIONS OF FACT CONSTITUTE FEDERAL CRIMINAL VIOLATIONS (SEE 18 U.S.C. 1001).