EXHIBIT 99.1

JOINT FILING AGREEMENT

In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of the foregoing Statement on Schedule 13G with respect to the common shares of Endurance International Group Holdings, Inc.  The undersigned acknowledge that each shall be responsible for the timely filing of such amendments, and for the completeness and accuracy of the information concerning it contained therein, but shall not be responsible for the completeness and accuracy of the information concerning the others, except to the extent that it knows or has reason to believe that such information is inaccurate. This Agreement may be executed in any number of counterparts and all such counterparts taken together shall constitute one and the same instrument.

Dated: February 14, 2014

WARBURG PINCUS PRIVATE EQUITY X, L.P.
By: Warburg Pincus X, L.P., its general partner By: Warburg Pincus X LLC, its general partner By: Warburg Pincus Partners LLC, its sole member By: Warburg Pincus & Co., its managing member
By:	/s/ Robert B. Knauss
Name:		Robert B. Knauss
Title:		Partner
WARBURG PINCUS X PARTNERS, L.P.
By: Warburg Pincus X, L.P., its general partner By: Warburg Pincus X LLC, its general partner By: Warburg Pincus Partners LLC, its sole member By: Warburg Pincus & Co., its managing member
By:	/s/ Robert B. Knauss
Name:		Robert B. Knauss
Title:		Partner
WP EXPEDITION CO-INVEST L.P.
By: Warburg Pincus Partners LLC, its general partner By: Warburg Pincus & Co., its managing member
By:	/s/ Robert B. Knauss
Name:		Robert B. Knauss
Title:		Partner

WARBURG PINCUS X, L.P.
By: Warburg Pincus X LLC, its general partner
By: Warburg Pincus Partners LLC, its sole member
By: Warburg Pincus & Co., its managing member
By:	/s/ Robert B. Knauss
Name:		Robert B. Knauss
Title:		Partner

WARBURG PINCUS X LLC
By: Warburg Pincus Partners LLC, its sole member
By: Warburg Pincus & Co., its managing member
By:	/s/ Robert B. Knauss
Name:		Robert B. Knauss
Title:		Partner
WARBURG PINCUS PARTNERS LLC
By: Warburg Pincus & Co., its managing member
By:	/s/ Robert B. Knauss
Name:		Robert B. Knauss
Title:		Partner
WARBURG PINCUS & CO.
By:	/s/ Robert B. Knauss
Name:		Robert B. Knauss
Title:		Partner
WARBURG PINCUS LLC
By:	/s/ Robert B. Knauss
Name:		Robert B. Knauss
Title:		Managing Director
CHARLES R. KAYE
By:	/s/ Robert B. Knauss
	Robert B. Knauss, Attorney-in-fact*
JOSEPH P. LANDY
By:	/s/ Robert B. Knauss
	Robert B. Knauss, Attorney-in-fact*

*The Power of Attorney given by each of Mr. Kaye and Mr. Landy was previously filed with the U.S. Securities and Exchange Commission on January 15, 2013 as an exhibit to a statement on Schedule 13D/A filed by Warburg Pincus Private Equity X, L.P. with respect to Talon Therapeutics, Inc. and is hereby incorporated by reference.