Exhibit 99.2

Joint Filer Information

Name of Joint Filer:		Advent International GPE VII Limited Partnership

Address of Joint Filer:		c/o Advent International Corporation
		75 State Street
		Boston, MA 02109

Relationship of Joint Filer to Issuer:		10% Owner

Issuer Name and Ticker or Trading Symbol:		INC Research Holdings, Inc. [INCR]

Date of Event Requiring
Statement (Month/Day/Year):		August 1, 2017

Designated Filer:		Advent International Corporation

Signature:

ADVENT INTERNATIONAL GPE VII LIMITED PARTNERSHIP

By: GPE VII GP (Delaware) Limited Partnership, its General Partner

By: Advent International GPE VII, LLC, its General Partner

By: Advent International Corporation, its Manager

By:

/s/ Michael Ristaino

Name:

Michael Ristaino

Title:

Vice President of Finance – Fund Administration

August 11, 2017

Date

Page 1 of 6

Exhibit 99.2

Joint Filer Information

Name of Joint Filer:		Advent International GPE VII-B Limited Partnership

Address of Joint Filer:		c/o Advent International Corporation
		75 State Street
		Boston, MA 02109

Relationship of Joint Filer to Issuer:		10% Owner

Issuer Name and Ticker or Trading Symbol:		INC Research Holdings, Inc. [INCR]

Date of Event Requiring
Statement (Month/Day/Year):		August 1, 2017

Designated Filer:		Advent International Corporation

Signature:

ADVENT INTERNATIONAL GPE VII-B LIMITED PARTNERSHIP

By: GPE VII GP (Delaware) Limited Partnership, its General Partner

By: Advent International GPE VII, LLC, its General Partner

By: Advent International Corporation, its Manager

By:

/s/ Michael Ristaino

Name:

Michael Ristaino

Title:

Vice President of Finance – Fund Administration

August 11, 2017

Date

Page 2 of 6

Exhibit 99.2

Joint Filer Information

Name of Joint Filer:		Advent International GPE VII-C Limited Partnership

Address of Joint Filer:		c/o Advent International Corporation
		75 State Street
		Boston, MA 02109

Relationship of Joint Filer to Issuer:		10% Owner

Issuer Name and Ticker or Trading Symbol:		INC Research Holdings, Inc. [INCR]

Date of Event Requiring
Statement (Month/Day/Year):		August 1, 2017

Designated Filer:		Advent International Corporation

Signature:

ADVENT INTERNATIONAL GPE VII-C LIMITED PARTNERSHIP

By: GPE VII GP (Delaware) Limited Partnership, its General Partner

By: Advent International GPE VII, LLC, its General Partner

By: Advent International Corporation, its Manager

By:

/s/ Michael Ristaino

Name:

Michael Ristaino

Title:

Vice President of Finance – Fund Administration

August 11, 2017

Date

Page 3 of 6

Exhibit 99.2

Joint Filer Information

Name of Joint Filer:		Advent International GPE VII-D Limited Partnership

Address of Joint Filer:		c/o Advent International Corporation
		75 State Street
		Boston, MA 02109

Relationship of Joint Filer to Issuer:		10% Owner

Issuer Name and Ticker or Trading Symbol:		INC Research Holdings, Inc. [INCR]

Date of Event Requiring
Statement (Month/Day/Year):		August 1, 2017

Designated Filer:		Advent International Corporation

Signature:

ADVENT INTERNATIONAL GPE VII-D LIMITED PARTNERSHIP

By: GPE VII GP (Delaware) Limited Partnership, its General Partner

By: Advent International GPE VII, LLC, its General Partner

By: Advent International Corporation, its Manager

By:

/s/ Michael Ristaino

Name:

Michael Ristaino

Title:

Vice President of Finance – Fund Administration

August 11, 2017

Date

Page 4 of 6

Exhibit 99.2

Joint Filer Information

Name of Joint Filer:		Advent International GPE VII-F Limited Partnership

Address of Joint Filer:		c/o Advent International Corporation
		75 State Street
		Boston, MA 02109

Relationship of Joint Filer to Issuer:		10% Owner

Issuer Name and Ticker or Trading Symbol:		INC Research Holdings, Inc. [INCR]

Date of Event Requiring
Statement (Month/Day/Year):		August 1, 2017

Designated Filer:		Advent International Corporation

Signature:

ADVENT INTERNATIONAL GPE VII-F LIMITED PARTNERSHIP

By: GPE VII GP (Delaware) Limited Partnership, its General Partner

By: Advent International GPE VII, LLC, its General Partner

By: Advent International Corporation, its Manager

By:

/s/ Michael Ristaino

Name:

Michael Ristaino

Title:

Vice President of Finance – Fund Administration

August 11, 2017

Date

Page 5 of 6

Exhibit 99.2

Joint Filer Information

Name of Joint Filer:		Advent International GPE VII-G Limited Partnership

Address of Joint Filer:		c/o Advent International Corporation
		75 State Street
		Boston, MA 02109

Relationship of Joint Filer to Issuer:		10% Owner

Issuer Name and Ticker or Trading Symbol:		INC Research Holdings, Inc. [INCR]

Date of Event Requiring
Statement (Month/Day/Year):		August 1, 2017

Designated Filer:		Advent International Corporation

Signature:

ADVENT INTERNATIONAL GPE VII-G LIMITED PARTNERSHIP

By: GPE VII GP (Delaware) Limited Partnership, its General Partner

By: Advent International GPE VII, LLC, its General Partner

By: Advent International Corporation, its Manager

By:

/s/ Michael Ristaino

Name:

Michael Ristaino

Title:

Vice President of Finance – Fund Administration

August 11, 2017

Date

Page 6 of 6

Advent International GPE VII Limited Partnership 3