<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>ex24mionis.txt
<DESCRIPTION>POWER OF ATTORNEY
<TEXT>
LIMITED POWER OF ATTORNEY FOR SECTION 16 REPORTING OBLIGATIONS


Know all by these presents, that the undersigned's hereby makes,
constitutes and appoints John C. Long as the undersigned's true and lawful
attorney-in-fact, with full power and authority as hereinafter described on
behalf of and in the name, place and stead of the undersigned to:

(1) prepare, execute, acknowledge, deliver and file Forms 3, 4, and 5
(including any amendments thereto) with respect to the securities of
Innovative Solutions & Support, Inc., a Pennsylvania corporation
(the "Company"), with the United States Securities and Exchange Commission,
any national securities exchanges and the Company, as considered necessary
or advisable under Section 16(a) of the Securities Exchange Act of 1934
and the rules and regulations promulgated thereunder, as amended from time
to time (the "Exchange Act");

(2) seek or obtain, as the undersigned's representative and on the
undersigned's behalf, information on transactions in the Company's
securities from any third party, including brokers, employee benefit plan
administrators and trustees, and the undersigned hereby authorizes any such
person to release any such information to the undersigned and approves
and ratifies any such release of information; and

(3) perform any and all other acts which in the discretion of such
attorney-in-fact are necessary or desirable for and on behalf of the
undersigned in connection with the foregoing.

The undersigned acknowledges that:

(1) this Power of Attorney authorizes, but does not require, such
attorney-in-fact to act in their discretion on information provided
to such attorney-in-fact without independent verification of such
information;

(2) any documents prepared and/or executed by such attorney-in-fact
 on behalf of the undersigned pursuant to this Power of Attorney
will be in such form and will contain such information and
disclosure as such attorney-in-fact, in his discretion, deems
necessary or desirable;

(3) neither the Company nor such attorney-in-fact assumes
(i) any liability for the undersigned's responsibility to comply
with the requirements of the Exchange Act, (ii) any liability of the
undersigned for any failure to comply with such requirements, or (iii)
any obligation or liability of the undersigned for profit disgorgement
under Section 16(b) of the Exchange Act; and

(4) this Power of Attorney does not relieve the undersigned from
responsibility for compliance with the undersigned's obligations
under the Exchange Act, including without limitation the reporting
requirements under Section 16 of the Exchange Act.

The undersigned hereby gives and grants the foregoing
attorney-in-fact full power and authority to do and perform all
and every act and thing whatsoever requisite, necessary or
appropriate to be done in and about the foregoing matters as
fully to all intents and purposes as the undersigned might or
could do if present, hereby ratifying all that such attorney-in-fact
of, for and on behalf of the undersigned, shall lawfully do or cause
to be done by virtue of this Limited Power of Attorney.

This Power of Attorney shall remain in full force and effect until
revoked by the undersigned in a signed writing delivered to such
attorney-in-fact.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney
to be executed as of this 22nd day of July, 2010.

/s/ Robert Mionis
Robert Mionis




STATE OF PENNSYLVANIA

COUNTY OF CHESTER



On this 22nd day of July, 2010, Robert Mionis personally appeared before
me, and acknowledged that s/he executed the foregoing instrument for
the purposes therein contained.

IN WITNESS WHEREOF, I have hereunto set my hand and official seal.


Signature: /s/ Maureen T. Robertson

My Commission Expires:  September 19, 2010

</TEXT>
</DOCUMENT>
