POWER OF ATTORNEY Know all by these presents that the undersigned
hereby constitutes and appoints Curt A.
Christianssen, the undersigned's true and lawful attorney-in-fact to:

(1) prepare, execute in the undersigned's name and on the
undersigned's behalf, and submit to the U.S. Securities and
Exchange Commission (the SEC) a Form ID, including amendments
thereto, and any other documents necessary or
appropriate to obtain codes and passwords enabling the undersigned to
make electronic filings with the SEC of reports required by Section
16{a) of the Securities Exchange Act of 1934 or any rule or
regulation of the SEC;

(2) execute for and on behalf of the undersigned, in the
undersigned's capacity as an officer and/or director of Pacific
Mercantile Bancorp (the Company), Forms 3, 4, and 5 in accordance
with Section 16(a) of the Securities Exchange Act of 1934 and the
rules thereunder, and any other forms or reports the undersigned may
be required to file in
connection with the undersigned's ownership, acquisition, or
disposition of securities of the Company;

(3) do an perform any and all acts for and on behalf of the
undersigned which may be necessary or desirable to
complete and execute any such Form 3, 4, or 5, or other form or
report, and timely file such form or report with the
United States Securities and Exchange Commission and any stock
exchange or similar authority; and

(4) take any other action of any type whatsoever in connection with
the foregoing which, in the opinion of such
attorney-in-fact, may be of benefit to, in the best interest of, or
legally required by, the undersigned, it being understood that the
documents executed by such attorney-in-fact on behalf of the
undersigned pursuant to this Power of Attorney shall be in such form
and shall contain such terms and conditions as such attorney-in-fact
may approve in such attorney-in-fact's discretion.

The undersigned hereby grants to each such attorney-in-fact full
power and authority to do and perform any and every act and thing
whatsoever requisite, necessary, or proper to be done in the exercise
of any of the rights and powers herein granted, as fully to all
intents and purposes as the undersigned might or could do if
personally present, with full power of substitution or revocation,
hereby ratifying and confirming all that such attorney-in-fact, or
such attorney-infact's substitute or substitutes, shall lawfully do
or cause to be done by virtue of this power of attorney and the
rights and powers herein granted. The undersigned acknowledges that
the foregoing attorneys-in-fact, in serving in such capacity at the
request of the undersigned, are not assuming, nor is the Company
assuming, any of the undersigned's responsibilities to comply with
Section 16 of the Securities Exchange Act of 1934.

This Power of Attorney shall remain in full force and effect until
the undersigned is no longer required to file Forms 3, 4,and 5 with
respect to the undersigned's holdings of and transactions in
securities issues by the Company, unless earlier revoked by the
undersigned in a signed writing delivered to the foregoing attorneys-
in-fact.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney
to be executed as of this 17th day of April, 2020.

Signature

/s/ Sean Foley
Sean Foley