Name of Joint Filer:	Cannae Holdings, Inc.
Address of Joint Filer:	1701 Village Center Circle Las Vegas, NV 89134
Relationship of Joint Filer to Issuer:	10% Owner
Issuer Name and Ticker or Trading Symbol:	Dun & Bradstreet Holdings, Inc. [DNB]
Date of Earliest Transaction Required to be Reported (Month/Day/Year):	August 26, 2025
Designated Filer:	Cannae Holdings, Inc.

Cannae Holdings, Inc.
By:	/s/ Michael L. Gravelle
	Name: Michael L. Gravelle
	Title:  Executive Vice President, General Counsel and Corporate Secretary
Dated:	August 26, 2025

Name of Joint Filer:	Cannae Holdings, LLC
Address of Joint Filer:	c/o Cannae Holdings, Inc.
	1701 Village Center Circle
	Las Vegas, NV 89134
Relationship of Joint Filer to Issuer:	10% Owner
Issuer Name and Ticker or Trading Symbol:	Dun & Bradstreet Holdings, Inc. [DNB]
Date of Earliest Transaction Required to be Reported (Month/Day/Year):	August 26, 2025
Designated Filer:	Cannae Holdings, Inc.

Cannae Holdings, LLC
By:	/s/ Michael L. Gravelle
	Name: Michael L. Gravelle
	Title:  Managing Director, General Counsel and Corporate Secretary
Dated:	August 26, 2025

Name of Joint Filer:	DNB Holdco, LLC
Address of Joint Filer:	c/o Cannae Holdings, Inc.
	1701 Village Center Circle
	Las Vegas, NV 89134
Relationship of Joint Filer to Issuer:	10% Owner
Issuer Name and Ticker or Trading Symbol:	Dun & Bradstreet Holdings, Inc. [DNB]
Date of Earliest Transaction Required to be Reported (Month/Day/Year):	August 26, 2025
Designated Filer:	Cannae Holdings, Inc.

DNB Holdco, LLC
By:	/s/ Michael L. Gravelle
	Name: Michael L. Gravelle
	Title:  Executive Vice President and General Counsel
Dated:	August 26, 2025