QuickLinks -- Click here to rapidly navigate through this document

UNITED STATES
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): October 21, 2004


BENCHMARK ELECTRONICS, INC.
(Exact name of registrant as specified in its charter)


Texas
(State or other jurisdiction of incorporation)		   1-10560
(Commission File Number)		   74-2211011
(I.R.S. Employer Identification No.)

3000 Technology Drive, Angleton, Texas
(Address of principal executive offices)
 
77515
(Zip code)

Registrant's telephone number, including area code: (979) 849-6550


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 (see General Instruction A.2. below):

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

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

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

o
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 October 21, 2004, Benchmark Electronics, Inc. issued a press release announcing third quarter results for the period ended September 30, 2004. A copy of the press release is attached as Exhibit 99.1 hereto and is hereby incorporated herein by reference. The information in this Form 8-K is being furnished under Item 2.02 and shall not be deemed to be "filed" for the purposes of Section 18 of the Securities and Exchange Act of 1934 (the "Exchange Act"), or otherwise subject to the liabilities of such section, nor shall such information be deemed incorporated by reference in any filing under the Securities Act of 1933 or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Item 9-01. Financial Statements and Exhibits.

2


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 hereunto duly authorized.

    BENCHMARK ELECTRONICS, INC.

Dated: October 21, 2004
 
By:
/s/  CARY T. FU      
Cary T. Fu
Chief Executive Officer

3


EXHIBITS INDEX

Exhibit
Number
   Description
Exhibit 99.1   Press release dated October 21, 2004



QuickLinks

SIGNATURE
EXHIBITS INDEX