LIMITED POWER OF ATTORNEY


       The undersigned hereby constitutes and appoints each
of Karyn Smith, Mariam Sattar and Alexis Rhorer, signing
singly, and with full power of substitution, the undersigned's
true and lawful attorney-in-fact to:

	(1)	execute for and on behalf of the undersigned,
in the undersigned's capacity as an officer and/or director
of Twilio Inc. (the ?Company?), from time to time the following
U.S.?Securities and Exchange Commission (?SEC?) forms: (i) Form
ID, including any attached documents, to effect the assignment
of codes to the undersigned to be used in the transmission of
information to the SEC using the EDGAR System; (ii) Form 3,
Initial Statement of Beneficial Ownership of Securities,
including any attached documents;  (iii) Form 4, Statement
of Changes in Beneficial Ownership of Securities, including
any attached documents; (iv) Form 5, Annual Statement of
Beneficial Ownership of Securities in accordance with Section
16(a) of the Securities Exchange Act of 1934, as amended, and
the rules thereunder, including any attached documents; (v)
Schedule 13D and (vi) amendments of each thereof, in
accordance with the Securities Exchange Act of 1934, as
amended, and the rules thereunder, including any attached
documents;

	(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, Schedule 13D
or any amendment(s) thereto, and timely file such form(s) with
the SEC and any securities exchange, national association 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, acting singly, 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 Section 16 or
Regulation 13D-G of the Securities Exchange Act of 1934, as
amended.  The undersigned hereby agrees to indemnify the
attorneys-in-fact and the Company from and against any demand,
damage, loss, cost or expense arising from any false or
misleading information provided by the undersigned to the
attorneys-in-fact.

	This Power of Attorney shall remain in full force
and effect until the undersigned is no longer required to
file such forms 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.
This Power of Attorney supersedes any prior power of attorney
in connection with the undersigned?s capacity as an officer
and/or director of the Company.  This Power of Attorney shall
expire as to any individual attorney-in-fact if such attorney-
in-fact ceases to be an executive officer of, or legal counsel
to the Company.

IN WITNESS WHEREOF, the undersigned has caused this Power of
Attorney to be executed as of March 8, 2017.

/s/ Elena Donio
Elena Donio