X0306 4 2021-08-11 1 0001794515 ZoomInfo Technologies Inc. ZI 0001475444 TC Group Cayman Investment Holdings, L.P. C/O THE CARLYLE GROUP, 1001 PENNSYLVANIA AVE., N.W., SUITE 220 SOUTH WASHINGTON DC 20004-2505 0 0 1 0 0001548629 Carlyle Holdings II GP L.L.C. C/O THE CARLYLE GROUP, 1001 PENNSYLVANIA AVE., N.W., SUITE 220 SOUTH WASHINGTON DC 20004-2505 0 0 1 0 0001548630 Carlyle Holdings II L.L.C. C/O THE CARLYLE GROUP, 1001 PENNSYLVANIA AVE., N.W., SUITE 220 SOUTH WASHINGTON DC 20004-2505 0 0 1 0 0001548636 TC Group Cayman Investment Holdings Sub L.P. C/O THE CARLYLE GROUP, 1001 PENNSYLVANIA AVE., N.W., SUITE 220 SOUTH WASHINGTON DC 20004-2505 0 0 1 0 0001791638 TC Group VI, L.L.C. C/O THE CARLYLE GROUP, 1001 PENNSYLVANIA AVE., N.W., SUITE 220 SOUTH WASHINGTON DC 20004-2505 0 0 1 0 0001791637 TC Group VI, L.P. C/O THE CARLYLE GROUP, 1001 PENNSYLVANIA AVE., N.W., SUITE 220 SOUTH WASHINGTON DC 20004-2505 0 0 1 0 0001802268 Carlyle Partners VI Dash Holdings, L.P. C/O THE CARLYLE GROUP, 1001 PENNSYLVANIA AVE., N.W., SUITE 220 SOUTH WASHINGTON DC 20004-2505 0 0 1 0 Class A Common Stock 2021-08-11 4 C 0 495282 0.00 A 495282 I By Carlyle Partners VI Dash Holdings, L.P. Class A Common Stock 2021-08-11 4 S 0 495282 62.00 D 0 I By Carlyle Partners VI Dash Holdings, L.P. Class C Common Stock 2021-08-11 4 C 0 495282 0.00 D Class A Common Stock 495282 0 I By Carlyle Partners VI Dash Holdings, L.P. The Carlyle Group Inc., which is a publicly traded entity listed on the Nasdaq, is the sole member of Carlyle Holdings II GP L.L.C., which is the managing member of Carlyle Holdings II L.L.C., which, with respect to the securities held of record by Carlyle Partners VI Dash Holdings, L.P. ("Carlyle VI Dash"), is the managing member of CG Subsidiary Holdings L.L.C., which is the general partner of TC Group Cayman Investment Holdings, L.P., which is the general partner of TC Group Cayman Investment Holdings Sub L.P., which is the sole member of TC Group VI, L.L.C., which is the general partner of TC Group VI, L.P., which is the general partner of Carlyle VI Dash. The Class C Common Stock may be converted into shares of the Issuer's Class A Common Stock on a one-to-one basis at the discretion of the holder and has no expiration date. Carlyle Holdings II GP L.L.C., By: The Carlyle Group Inc., its sole member, By: /s/ Anne Frederick, Attorney-in-fact for Curtis L. Buser, Managing Director and Chief Financial Officer 2021-08-13 Carlyle Holdings II L.L.C., By: /s/ Anne Frederick, Attorney-in-fact for Curtis L. Buser, Managing Director 2021-08-13 TC Group Cayman Investment Holdings, L.P., By: CG Subsidiary Holdings L.L.C., its general partner, By: /s/ Anne Frederick, Attorney-in-fact for Curtis L. Buser, Managing Director 2021-08-13 TC Group Cayman Investment Holdings Sub L.P., By: TC Group Cayman Investment Holdings, L.P., its general partner, By: CG Subsidiary Holdings L.L.C., its general partner, By: /s/ Anne Frederick, Attorney-in-fact for Curtis L. Buser, Managing Director 2021-08-13 TC Group VI, L.L.C., By: /s/ Jeremy W. Anderson, Authorized Person 2021-08-13 TC Group VI, L.P., By: /s/ Jeremy W. Anderson, Authorized Person 2021-08-13 Carlyle Partners VI Dash Holdings, L.P., By: TC Group VI, L.P., its general partner, By: /s/ Jeremy W. Anderson, Authorized Person 2021-08-13