Designated Filer:	Warburg Pincus Private Equity IX, L.P.
Issuer & Ticker Symbol:	Vringo, Inc. (VRNG)
Date of Event Requiring Statement:	June 22, 2011

Joint Filer Information

Joint Filers:
1. Name:	Warburg Pincus IX LLC
Address:	C/O Warburg Pincus LLC
	450 Lexington Avenue
	New York, NY 10017
2. Name:	Warburg Pincus Partners, LLC
Address:	C/O Warburg Pincus LLC
	450 Lexington Avenue
	New York, NY 10017
3. Name:	Warburg Pincus & Co.
Address:	450 Lexington Avenue
	New York, NY 10017
4. Name:	Warburg Pincus LLC
Address:	450 Lexington Avenue
	New York, NY 10017
5. Name:	Charles R. Kaye
Address:	C/O Warburg Pincus LLC
	450 Lexington Avenue
	New York, NY 10017
6. Name:	Joseph P. Landy
Address:	C/O Warburg Pincus LLC
	450 Lexington Avenue
	New York, NY 10017