Exhibit 99.2

Joint Filer Information

Name of Joint Filer:	Advent Partners 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 PARTNERS GPE VII LIMITED PARTNERSHIP

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 9

Exhibit 99.2

Joint Filer Information

Name of Joint Filer:	Advent Partners GPE VII 2014 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 PARTNERS GPE VII 2014 LIMITED PARTNERSHIP

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 9

Exhibit 99.2

Joint Filer Information

Name of Joint Filer:	Advent Partners GPE VII-A 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 PARTNERS GPE VII-A LIMITED PARTNERSHIP

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 9

Exhibit 99.2

Joint Filer Information

Name of Joint Filer:	Advent Partners GPE VII-A 2014 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 PARTNERS GPE VII-A 2014 LIMITED PARTNERSHIP

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 9

Exhibit 99.2

Joint Filer Information

Name of Joint Filer:	Advent Partners GPE VII Cayman 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 PARTNERS GPE VII CAYMAN LIMITED PARTNERSHIP

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 9

Exhibit 99.2

Joint Filer Information

Name of Joint Filer:	Advent Partners GPE VII 2014 Cayman 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 PARTNERS GPE VII 2014 CAYMAN LIMITED PARTNERSHIP

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 9

Exhibit 99.2

Joint Filer Information

Name of Joint Filer:	Advent Partners GPE VII-A Cayman 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 PARTNERS GPE VII-A CAYMAN LIMITED PARTNERSHIP

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 7 of 9

Exhibit 99.2

Joint Filer Information

Name of Joint Filer:	Advent Partners GPE VII-B Cayman 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 PARTNERS GPE VII-B CAYMAN LIMITED PARTNERSHIP

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 8 of 9

Exhibit 99.2

Joint Filer Information

Name of Joint Filer:	Advent Partners GPE VII-A 2014 Cayman 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 PARTNERS GPE VII-A 2014 CAYMAN LIMITED PARTNERSHIP

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 9 of 9

Advent Partners GPE VII-A Limited Partnership 3