Exhibit 99.2

Joint Filer Information

Name of Joint Filer:	THL Fund VII Coinvestment Partners, L.P.
Address of Joint Filer:	c/o Thomas H. Lee Partners, L.P.
	100 Federal Street, 35th Floor
	Boston, MA 02110
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:	Thomas H. Lee Advisors, LLC

Signature:

THL FUND VII COINVESTMENT PARTNERS, L.P.

By: Thomas H. Lee Partners, L.P., its General Partner

By: Thomas H. Lee Advisors, LLC, its General Partner

By: THL Holdco, LLC, its Managing Member

By:

/s/ Charles P. Holden
Name:	Charles P. Holden
Title:	Managing Director

August 10, 2017

Page 1 of 7

Exhibit 99.2

Joint Filer Information

Name of Joint Filer:	THL Coinvestment Partners, L.P.
Address of Joint Filer:	c/o Thomas H. Lee Partners, L.P.
	100 Federal Street, 35th Floor
	Boston, MA 02110
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:	Thomas H. Lee Advisors, LLC

Signature:

THL COINVESTMENT PARTNERS, L.P.

By: Thomas H. Lee Partners, L.P., its General Partner

By: Thomas H. Lee Advisors, LLC, its General Partner

By: THL Holdco, LLC, its Managing Member

By:

/s/ Charles P. Holden
Name:	Charles P. Holden
Title:	Managing Director

August 10, 2017

Page 2 of 7

Exhibit 99.2

Joint Filer Information

Name of Joint Filer:	THL Operating Partners, L.P.
Address of Joint Filer:	c/o Thomas H. Lee Partners, L.P.
	100 Federal Street, 35th Floor
	Boston, MA 02110
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:	Thomas H. Lee Advisors, LLC

Signature:

THL OPERATING PARTNERS, L.P.

By: Thomas H. Lee Partners, L.P., its General Partner

By: Thomas H. Lee Advisors, LLC, its General Partner

By: THL Holdco, LLC, its Managing Member

By:

/s/ Charles P. Holden
Name:	Charles P. Holden
Title:	Managing Director

August 10, 2017

Page 3 of 7

Exhibit 99.2

Joint Filer Information

Name of Joint Filer:	Great-West Investors, L.P.
Address of Joint Filer:	c/o Thomas H. Lee Partners, L.P.
	100 Federal Street, 35th Floor
	Boston, MA 02110
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:	Thomas H. Lee Advisors, LLC

Signature:

GREAT-WEST INVESTORS, L.P.

By: Thomas H. Lee Partners, L.P., its Attorney-in-Fact

By: Thomas H. Lee Advisors, LLC, its General Partner

By: THL Holdco, LLC, its Managing Member

By:

/s/ Charles P. Holden
Name:	Charles P. Holden
Title:	Managing Director

August 10, 2017

Page 4 of 7

Exhibit 99.2

Joint Filer Information

Name of Joint Filer:	Putnam Investments Employees’ Securities Company III, LLC,
Address of Joint Filer:	c/o Thomas H. Lee Partners, L.P.
	100 Federal Street, 35th Floor
	Boston, MA 02110
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:	Thomas H. Lee Advisors, LLC

Signature:

PUTNAM INVESTMENTS EMPLOYEES’ SECURITIES COMPANY III, LLC

By: Putnam Investments Holdings, LLC, its Managing Member

By: Putnam, LLC, its Managing Member By: Thomas H. Lee Partners, L.P., its Attorney-in-Fact

By: Thomas H. Lee Advisors, LLC, its General Partner

By: THL Holdco, LLC, its Managing Member

By:

/s/ Charles P. Holden
Name:	Charles P. Holden
Title:	Managing Director

August 10, 2017

Page 5 of 7

Exhibit 99.2

Joint Filer Information

Name of Joint Filer:	Todd M. Abbrecht
Address of Joint Filer:	c/o Thomas H. Lee Partners, L.P.
	100 Federal Street, 35th Floor
	Boston, MA 02110
Relationship of Joint Filer to Issuer:	Director
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:	Thomas H. Lee Advisors, LLC

Signature:

By:

/s/ Todd M. Abbrecht
Name:	Todd M. Abbrecht

August 10, 2017

Page 6 of 7

Exhibit 99.2

Joint Filer Information

Name of Joint Filer:	Joshua M. Nelson
Address of Joint Filer:	c/o Thomas H. Lee Partners, L.P.
	100 Federal Street, 35th Floor
	Boston, MA 02110
Relationship of Joint Filer to Issuer:	Director
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:	Thomas H. Lee Advisors, LLC

Signature:

By:

/s/ Joshua M. Nelson
Name:	Joshua M. Nelson

August 10, 2017

Page 7 of 7