POWER OF ATTORNEY

   Know all by these presents, that the undersigned hereby makes, constitutes and appoints James
Erlinger III, John Goodacre, and Beverly Rubin, and each of them singly, as the undersigned's true and
lawful attorneys-in-fact with full power and authority as hereinafter described to:

1. execute for and on behalf of the undersigned, in the undersigned's capacity as an officer, director
and/or beneficial owner of Quintiles Transnational Holdings Inc. (the "Company"), (i) Forms 3,
4, and 5 (including amendments thereto) in accordance with Section 16(a) of the Securities
Exchange Act of 1934, as amended (the "Exchange Act"), and the rules thereunder, (ii) Form 144
in accordance with Rule 144 under the Securities Act of 1933, as amended (the "Securities Act"),
and (iii) Schedules 13D and 13G (including amendments thereto) in accordance with Sections
13(d) and 13(g) of the Exchange Act and the rules thereunder;

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 (including amendments thereto), Form
144, or Schedule 13D or 13G (including amendments thereto) and timely file such form with the
United States Securities and Exchange Commission (the "SEC") and any stock exchange or
similar authority, including, but not limited to, executing a Form ID for and on behalf of the
undersigned and filing such Form ID with the SEC; and

3. take any other action of any type whatsoever in connection with the foregoing that, 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 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 the acts such attorney-in-fact 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 each of the
foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, is not assuming
any of the undersigned's responsibilities to comply with Sections 13 or 16 of the Exchange Act or Rule
144 under the Securities Act.

   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 (including amendments thereto), Form 144, and Schedules 13D and 13G
(including amendments thereto) 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 each of the foregoing attorneys-in-fact.

   IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of
this 1st day of May, 2013.


       		By:	/s/ Charles Williams

       Print Name:  Charles Williams