Exhibit 99.2

Joint Filer Information

Name of Joint Filer:	Thomas H. Lee Advisors, 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:	Director
Issuer Name and Ticker or Trading Symbol:	Syneos Health, Inc. [SYNH]
Date of Earliest Transaction Required to be Reported:	June 7, 2021
Designated Filer:	Thomas H. Lee Advisors, LLC
Signature:
THOMAS H. LEE ADVISORS, LLC
By: THL Holdco, LLC, its Managing Member

By:

/s/ Michael McDonnell

Name: Michael McDonnell

Title: Chief Financial Officer, Management Company

June 9, 2021

Page 1 of 13

Exhibit 99.2

Joint Filer Information

Name of Joint Filer:	Thomas H. Lee Equity Fund VI (2019), 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:	Director
Issuer Name and Ticker or Trading Symbol:	Syneos Health, Inc. [SYNH]
Date of Earliest Transaction Required to be Reported:	June 7, 2021
Designated Filer:	Thomas H. Lee Advisors, LLC

Signature:

THOMAS H. LEE EQUITY FUND VI (2019), L.P.

By: THL Equity Advisors VI (2019), LLC, its General Partner

By: Thomas H. Lee Partners, L.P., its Sole Member

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

By: THL Holdco, LLC, its Managing Member

By:

/s/ Michael McDonnell

Name: Michael McDonnell

Title: Chief Financial Officer, Management Company

June 9, 2021

Page 2 of 13

Exhibit 99.2

Joint Filer Information

Name of Joint Filer:	Thomas H. Lee Partners, L.P.
Address of Joint Filer:	100 Federal Street, 35th Floor
	Boston, MA 02110
Relationship of Joint Filer to Issuer:	Director
Issuer Name and Ticker or Trading Symbol:	Syneos Health, Inc. [SYNH]
Date of Earliest Transaction Required to be Reported:	June 7, 2021
Designated Filer:	Thomas H. Lee Advisors, LLC

Signature:

THOMAS H. LEE PARTNERS, L.P.

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

By: THL Holdco, LLC, its Managing Member

By:

/s/ Michael McDonnell

Name: Michael McDonnell

Title: Chief Financial Officer, Management Company

June 9, 2021

Page 3 of 13

Exhibit 99.2

Joint Filer Information

Name of Joint Filer:	THL Equity Fund VI (2019) 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:	Director
Issuer Name and Ticker or Trading Symbol:	Syneos Health, Inc. [SYNH]
Date of Earliest Transaction Required to be Reported:	June 7, 2021
Designated Filer:	Thomas H. Lee Advisors, LLC

Signature:

THL EQUITY FUND VI (2019) 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/ Michael McDonnell

Name: Michael McDonnell

Title: Chief Financial Officer, Management Company

June 9, 2021

Page 4 of 13

Exhibit 99.2

Joint Filer Information

Name of Joint Filer:	Thomas H. Lee Equity Fund VII, 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:	Director
Issuer Name and Ticker or Trading Symbol:	Syneos Health, Inc. [SYNH]
Date of Earliest Transaction Required to be Reported:	June 7, 2021
Designated Filer:	Thomas H. Lee Advisors, LLC

Signature:

THOMAS H. LEE EQUITY FUND VII, L.P.

By: THL Equity Advisors VII, LLC, its General Partner

By: Thomas H. Lee Partners, L.P., its Sole Member

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

By: THL Holdco, LLC, its Managing Member

By:

/s/ Michael McDonnell

Name: Michael McDonnell

Title: Chief Financial Officer, Management Company

June 9, 2021

Page 5 of 13

Exhibit 99.2

Joint Filer Information

Name of Joint Filer:	Thomas H. Lee Parallel Fund VII, 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:	Director
Issuer Name and Ticker or Trading Symbol:	Syneos Health, Inc. [SYNH]
Date of Earliest Transaction Required to be Reported:	June 7, 2021
Designated Filer:	Thomas H. Lee Advisors, LLC

Signature:

THOMAS H. LEE PARALLEL FUND VII, L.P.

By: THL Equity Advisors VII, LLC, its General Partner

By: Thomas H. Lee Partners, L.P., its Sole Member

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

By: THL Holdco, LLC, its Managing Member

By:

/s/ Michael McDonnell

Name: Michael McDonnell

Title: Chief Financial Officer, Management Company

June 9, 2021

Page 6 of 13

Exhibit 99.2

Joint Filer Information

Name of Joint Filer:	Thomas H. Lee Parallel (Cayman) Fund VII, 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:	Director
Issuer Name and Ticker or Trading Symbol:	Syneos Health, Inc. [SYNH]
Date of Earliest Transaction Required to be Reported:	June 7, 2021
Designated Filer:	Thomas H. Lee Advisors, LLC

Signature:

THOMAS H. LEE PARALLEL (CAYMAN) FUND VII, L.P.

By: THL Equity Advisors VII, LLC, its General Partner

By: Thomas H. Lee Partners, L.P., its Sole Member

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

By: THL Holdco, LLC, its Managing Member

By:

/s/ Michael McDonnell

Name: Michael McDonnell

Title: Chief Financial Officer, Management Company

June 9, 2021

Page 7 of 13

Exhibit 99.2

Joint Filer Information

Name of Joint Filer:	THL Managers VI, 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:	Director
Issuer Name and Ticker or Trading Symbol:	Syneos Health, Inc. [SYNH]
Date of Earliest Transaction Required to be Reported:	June 7, 2021
Designated Filer:	Thomas H. Lee Advisors, LLC

Signature:

THL MANAGERS VI, LLC

By:

/s/ Michael McDonnell

Name: Michael McDonnell

Title: Chief Financial Officer, Management Company

June 9, 2021

Page 8 of 13

Exhibit 99.2

Joint Filer Information

Name of Joint Filer:	THL Managers VII, 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:	Director
Issuer Name and Ticker or Trading Symbol:	Syneos Health, Inc. [SYNH]
Date of Earliest Transaction Required to be Reported:	June 7, 2021
Designated Filer:	Thomas H. Lee Advisors, LLC

Signature:

THL MANAGERS VII, LLC

By:

/s/ Michael McDonnell

Name: Michael McDonnell

Title: Chief Financial Officer, Management Company

June 9, 2021

Page 9 of 13

Exhibit 99.2

Joint Filer Information

Name of Joint Filer:	THL Holdco, 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:	Director
Issuer Name and Ticker or Trading Symbol:	Syneos Health, Inc. [SYNH]
Date of Earliest Transaction Required to be Reported:	June 7, 2021
Designated Filer:	Thomas H. Lee Advisors, LLC

Signature:

THL Holdco, LLC

By:

/s/ Michael McDonnell

Name: Michael McDonnell

Title: Chief Financial Officer, Management Company

June 9, 2021

Page 10 of 13

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:	Director
Issuer Name and Ticker or Trading Symbol:	Syneos Health, Inc. [SYNH]
Date of the Earliest Transaction Required to be Reported (Month/Day/Year):	June 7, 2021
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/ Michael McDonnell

Name: Michael McDonnell

Title: Chief Financial Officer, Management Company

June 9, 2021

Page 11 of 13

Exhibit 99.2

Joint Filer Information

Name of Joint Filer:	THL Executive Fund VII, 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:	Director
Issuer Name and Ticker or Trading Symbol:	Syneos Health, Inc. [SYNH]
Date of Earliest Transaction Required to be Reported:	June 7, 2021
Designated Filer:	Thomas H. Lee Advisors, LLC

Signature:

THL EXECUTIVE FUND VII, L.P.

By: THL Equity Advisors VII, LLC, its General Partner

By: Thomas H. Lee Partners, L.P., its Sole Member

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

By: THL Holdco, LLC, its Managing Member

By:

/s/ Michael McDonnell

Name: Michael McDonnell

Title: Chief Financial Officer, Management Company

June 9, 2021

Page 12 of 13

Exhibit 99.2

Joint Filer Information

Name of Joint Filer:	THL Equity Fund VII Investors (inVentiv), 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:	Director
Issuer Name and Ticker or Trading Symbol:	Syneos Health, Inc. [SYNH]
Date of Earliest Transaction Required to be Reported:	June 7, 2021
Designated Filer:	Thomas H. Lee Advisors, LLC

Signature:

THOMAS H. LEE EQUITY FUND VII INVESTORS (INVENTIV), L.P.

By: THL Equity Advisors VII, LLC, its General Partner

By: Thomas H. Lee Partners, L.P., its Sole Member

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

By: THL Holdco, LLC, its Managing Member

By:

/s/ Michael McDonnell

Name: Michael McDonnell

Title: Chief Financial Officer, Management Company

June 9, 2021

Page 13 of 13