Exhibit 24
POWER OF ATTORNEY
(For Executing Forms 3, 4 and 5 and Schedule 13D)

       Know all by these presents, that the undersigned hereby constitutes and
appoints each of Alfredo Silva, Aria Kashefi, Will Carter, Eileen Kang, Gary
Pang and David Manshardt of Morrison & Foerster LLP and Jack Peurach, Jack Glenn
and Jerome Wong of Ekso Bionics Holdings, Inc. (the "Company"), or either of
them signing singly, and with the full power of substitution, 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")
Forms 3, 4 and 5 (including amendments thereto and joint filing agreements in
connection therewith, and any other documents necessary or appropriate to enable
the undersigned to make electronic filings with the SEC of reports required by)
in accordance with Section 16(a) of the Securities Exchange Act of 1934, as
amended (the "Exchange Act") or any rule or regulation of the SEC in the
undersigned's capacity as an officer, director or beneficial owner of more than
10% of a registered class of securities of the Company;
       (2) Prepare, execute in the undersigned's name and on the undersigned's
behalf, and submit to the SEC Schedule 13D or Schedule 13G (including amendments
thereto and joint filing agreements in connection therewith) in accordance with
Sections 13(d) and 13(g) of the Exchange Act and the rules thereunder in the
undersigned's capacity as beneficial owner of more than 5% of a registered class
of securities of the Company;
       (3) 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 of such Forms 3,
4 or 5 and Schedules 13D or 13G (including amendments thereto and joint filing
agreements in connection therewith) and timely file such forms or schedules with
the SEC and any stock exchange, self-regulatory association or any 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-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 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 Sections 13 or 16 of the Exchange
Act.
       This Power of Attorney shall remain in full force and effect until the
earliest to occur of (a) the undersigned is no longer required to file Forms 3,
4 and 5 or Schedules 13D or 13G with respect to the undersigned's holdings of
and transactions in securities issued by the Company, (b) revocation by the
undersigned in a signed writing delivered to the Company and the foregoing
attorneys-in-fact or (c) as to any attorney-in-fact individually, until such
attorney-in-fact is no longer employed by the Company or Morrison & Foerster
LLP, as applicable.
       IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to
be executed as of the date written below.
Date: December 14, 2020
By:   /s/ Rhonda A. Wallen
Name: Rhonda A. Wallen