POWER OF ATTORNEY FOR SECTION 16 REPORTING PURPOSES

Know all by these presents, that the undersigned hereby constitutes
and appoints each of Steven Vattuone, Amit Khetan, William Weesner,
Charles Rogerson and Bianca Jean LaCaille, or any of them signing
singly, and with full power of substitution, as the undersigned's
true and lawful attorney-in-fact to:

(1) prepare, execute for and on behalf of the undersigned
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 ON24, Inc. (the "Company"),

(2) do and 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

(3) 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-in-fact'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 attorney-in-fact,
in serving in such capacity at the request of the undersigned,
is 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 issued 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 12/21/2021.

Jayesh Sahasi