Gartner, Inc.

Substitute Power of Attorney

Under the terms of Powers of Attorney (each, a "Power of Attorney")
previously filed with the U.S. Securities and Exchange Commission,
the undersigned was appointed an attorney-in-fact for the following
individuals to, among other things, execute for and on behalf of
the following individuals any Forms 3, 4 and 5 or any amendments
thereto, in accordance with Section 16(a) of the Securities Exchange
Act of 1934, as amended, and the rules thereunder:

Directors			Officers
Michael J. Bingle		Kendall B. Davis
Peter Bisson			Alwyn Dawkins
Richard J. Bressler		Michael Diliberto
Raul E. Cesan			David Godfrey
Karen E. Dykstra		Eugene A. Hall
Anne Sutherland Fuchs		Robin B. Kranich
William O. Grabe		David K. McVeigh
Stephen J. Pagliuca		Daniel S. Peale
James C. Smith 			Craig W. Safian
				Christopher Thomas
				Per Anders Waern

In accordance with the authority granted under each Power of
Attorney, including the power of substitution, the undersigned
hereby appoints Kevin Tang as substitute attorney-in-fact, on
behalf of the individuals listed above, with the power to exercise
and execute all of the powers granted or conferred in the original
Power of Attorney. This Substitute Power of Attorney shall not
revoke the powers granted to the undersigned in any Powerof Attorney.

This Substitute Power of Attorney shall remain in full force and
effect until the underlying Power of Attorney is revoked or
terminated, unless earlier revoked by the undersigned in a signed
writing.


Date: May 2, 2017

/s/ Daniel S. Peale
Name: Daniel S. Peale
Title: Attorney-in-Fac