UNISYS CORPORATION Unisys Way Blue Bell, Pennsylvania 19424 June 1, 2009 VIA EDGAR AND FACSIMILE United States Securities and Exchange Commission Division of Corporation Finance Mail Stop 4561 100 F Street, N.E. Washington, D.C. 20549 Attention: Maryse Mills-Apenteng Re: Acceleration Request for Unisys Corporation Registration Statement on Form S-3 (File No. 333-155735) Dear Ms. Mills-Apenteng: Pursuant to Rule 461 under the Securities Act of 1933, as amended, Unisys Corporation hereby respectfully requests acceleration of the above-referenced Registration Statement on Form S-3 so that it will become effective at 10:00 a.m. Eastern time on June 4, 2009, or as soon thereafter as practicable. As you requested, the undersigned hereby acknowledges that: * should the Securities and Exchange Commission (the "Commission") or the staff of the Commission (the "Staff"), acting pursuant to delegated authority, declare the filing effective, it does not foreclose the Commission from taking any action with respect to the filing; * the action of the Commission or the Staff, acting pursuant to delegated authority, in declaring the filing effective, does not relieve the undersigned from its full responsibility for the adequacy and accuracy of the disclosure in the filing; and * the undersigned may not assert Staff comments and the declaration of effectiveness as a defense in any proceeding initiated by the Commission or any person under the federal securities laws of the United States. If you have any questions, please contact Virginia Pappas, Esq., Associate General Counsel, at (215) 986-4058. Sincerely, UNISYS CORPORATION By: /s/ Scott A. Battersby ---------------------- Name: Scott A. Battersby Title: Vice President and Treasurer