Adesso SeXETR: ADN1

Proxy and instructions for the Company’s proxy holders (..power of attorney to companys proxies en)

· Issued by adesso SE


Annual General Meeting of adesso SE on 3 June 2026

Power of attorney granted and instructions issued to the Company's proxies

(Prerequisite: timely registration by 27 May 2026, 24:00 hours CEST (receipt))

I / We:

First Name and Last Name *

Email address

Phone number

Ticket number

Number of shares

* mandatory

hereby authorize the Company's proxies, Mr Bork Drewer and Mr Thomas Wagner, both employees of meet2vote AG, Pfarrkirchen, each individually and with the right to delegate their authorization to another party, to represent me/us and exercise my/our voting right(s) as indicated below. Any declarations of intent made earlier are hereby revoked.

Note: Your instructions refer in each case to the proposed resolution of the Management Board and/or the Supervisory Board published in the Federal Gazette in the notice convening the Annual General Meeting or to motions and nominations of shareholders pursuant to Sections 126 (1), 127 AktG that are subject to disclosure. These will be made available - in the event of a separate voting requirement - at https://www.adesso-group.de/hv/ with an individual ID (p.e. a letter). If you wish to issue instructions regarding a motion or nomination, please handwrite the corresponding ID below and indicate your instructions. If no mark is provided or if the box abstention is checked, your instruction will be considered as an abstention.

Individual instruction on an agenda item:

YES

NO

ABSTENTION

2. Resolution on the appropriation of retained earnings

3. Resolution on the discharge of the Management Board for the financial year 2025

4. Resolution on the discharge of the Supervisory Board for the financial year 2025

5. Election of the auditor and group auditor, as well as the auditor of the sustainability reporting for the financial year 2026

6. Resolution on the approval of the remuneration report for the financial year 2025, prepared and audited in accordance with Section 162 of the German Stock Corporation Act (AktG)

7. Approval of the remuneration system for members of the Management Board

8. Cancellation of the 2015 Conditional Capital, which is no longer required, and corresponding amendment to the Articles of Association

Instructions to potential motions or nominations (Sections 126, 127 AktG)

YES

NO

ABSTENTION

YES to the motion/election proposal with the ID:*

NO to the motion / election proposal with the ID:*

ABSTENTION to the motion / election proposal with the ID:*

* Fill in the ID of the motion(s) and/or nomination(s) by hand

Place, Date Signature(s) or name of the person(s) making the declaration (legible)

Return address: (Please return by 2 June 2026, 24:00 hours CEST, (receipt) to the following address or email address)

Adesso SE Email: adesso@meet2vote.de

c/o meet2vote AG Marienplatz 1

84347 Pfarrkirchen Germany