EXHIBIT 32.1
CERTIFICATE PURSUANT TO
18 U.S.C. ss. 1350,
AS ADOPTED PURSUANT TO
ss. 906 OF THE SARBANES-OXLEY ACT OF 2002
In connection with the Annual Report on Form 10-K of Mission West Properties,
Inc. (the "Company") for the year ended December 31, 2005 as filed with the
Securities and Exchange Commission on the date hereof (the "Report"), each of
Carl E. Berg, Chairman of the Board and Chief Executive Officer of the Company,
Raymond V. Marino, President and Chief Operating Officer ,and Wayne N. Pham,
Vice President of Finance and Controller of the Company, hereby certify,
pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to ss. 906 of the
Sarbanes-Oxley Act of 2002, to the best of his knowledge, that:
(1) The Report fully complies with the requirements of Section 13(a) or
15(d) of the Securities Exchange Act of 1934, as amended; and
(2) The information contained in the Report fairly presents, in all
material respects, the financial condition and result of operations of the
Company.
/s/ Carl E. Berg
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Carl E. Berg
Chairman of the Board and Chief Executive Officer
March 14, 2006
/s/ Raymond V. Marino
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Raymond V. Marino
President and Chief Operating Officer
March 14, 2006
/s/ Wayne N. Pham
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Wayne N. Pham
Vice President of Finance and Controller
March 14, 2006
This certification accompanies this Report pursuant to ss. 906 of the
Sarbanes-Oxley Act of 2002 and shall not, except to the extent required by the
Sarbanes-Oxley Act of 2002, or otherwise required, be deemed filed by the
Company for purposes of ss. 18 of the Securities Exchange Act of 1934, as
amended.
A signed original of this written statement required by section 906 has been
provided to the Company and will be retained by the Company and furnished to the
Securities and Exchange Commission or its staff upon request.
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