EXHIBIT 24

POWER OF ATTORNEY

     The undersigned director of GATX Corporation, a New York corporation, does hereby constitute and appoint Robert C. Lyons, Deborah A. Golden and William M. Muckian or any of them, attorneys and agents of the undersigned, with full power and authority to sign in such director’s name, and on behalf of GATX Corporation, the 2010 Annual Report on Form 10-K, under the Securities Exchange Act of 1934, together with any amendments thereto, hereby ratifying and confirming all that said attorneys and agents and each of them may do by virtue hereof.

     IN WITNESS WHEREOF, the undersigned has hereunto set his hand and seal.

/s/ Anne L. Arvia  

Anne L. Arvia 

Director 

Date:           2-18-2011          

POWER OF ATTORNEY

     The undersigned director of GATX Corporation, a New York corporation, does hereby constitute and appoint Robert C. Lyons, Deborah A. Golden and William M. Muckian or any of them, attorneys and agents of the undersigned, with full power and authority to sign in such director’s name, and on behalf of GATX Corporation, the 2010 Annual Report on Form 10-K, under the Securities Exchange Act of 1934, together with any amendments thereto, hereby ratifying and confirming all that said attorneys and agents and each of them may do by virtue hereof.

     IN WITNESS WHEREOF, the undersigned has hereunto set his hand and seal.

/s/ Richard Fairbanks  

Richard Fairbanks 

Director 

Date:           2-22-2011          

POWER OF ATTORNEY

     The undersigned director of GATX Corporation, a New York corporation, does hereby constitute and appoint Robert C. Lyons, Deborah A. Golden and William M. Muckian or any of them, attorneys and agents of the undersigned, with full power and authority to sign in such director’s name, and on behalf of GATX Corporation, the 2010 Annual Report on Form 10-K, under the Securities Exchange Act of 1934, together with any amendments thereto, hereby ratifying and confirming all that said attorneys and agents and each of them may do by virtue hereof.

     IN WITNESS WHEREOF, the undersigned has hereunto set his hand and seal.

/s/ Deborah M. Fretz Deborah M. Fretz

Director

Date:           2-10-2011                    

POWER OF ATTORNEY

     The undersigned director of GATX Corporation, a New York corporation, does hereby constitute and appoint Robert C. Lyons, Deborah A. Golden and William M. Muckian or any of them, attorneys and agents of the undersigned, with full power and authority to sign in such director’s name, and on behalf of GATX Corporation, the 2010 Annual Report on Form 10-K, under the Securities Exchange Act of 1934, together with any amendments thereto, hereby ratifying and confirming all that said attorneys and agents and each of them may do by virtue hereof.

     IN WITNESS WHEREOF, the undersigned has hereunto set his hand and seal.

/s/ Ernst A. Häberli  

Ernst A. Häberli 

Director 

Date:           2-15-2011          

POWER OF ATTORNEY

     The undersigned director of GATX Corporation, a New York corporation, does hereby constitute and appoint Robert C. Lyons, Deborah A. Golden and William M. Muckian or any of them, attorneys and agents of the undersigned, with full power and authority to sign in such director’s name, and on behalf of GATX Corporation, the 2010 Annual Report on Form 10-K, under the Securities Exchange Act of 1934, together with any amendments thereto, hereby ratifying and confirming all that said attorneys and agents and each of them may do by virtue hereof.

IN WITNESS WHEREOF, the undersigned has hereunto set his hand and seal.

/s/ Brian A. Kenney Brian A. Kenney

Director

Date:           2-22-11                    

POWER OF ATTORNEY

     The undersigned director of GATX Corporation, a New York corporation, does hereby constitute and appoint Robert C. Lyons, Deborah A. Golden and William M. Muckian or any of them, attorneys and agents of the undersigned, with full power and authority to sign in such director’s name, and on behalf of GATX Corporation, the 2010 Annual Report on Form 10-K, under the Securities Exchange Act of 1934, together with any amendments thereto, hereby ratifying and confirming all that said attorneys and agents and each of them may do by virtue hereof.

     IN WITNESS WHEREOF, the undersigned has hereunto set his hand and seal.

/s/ Mark G. McGrath Mark G. McGrath

Director

Date:           2-16-2011                    

POWER OF ATTORNEY

     The undersigned director of GATX Corporation, a New York corporation, does hereby constitute and appoint Robert C. Lyons, Deborah A. Golden and William M. Muckian or any of them, attorneys and agents of the undersigned, with full power and authority to sign in such director’s name, and on behalf of GATX Corporation, the 2010 Annual Report on Form 10-K, under the Securities Exchange Act of 1934, together with any amendments thereto, hereby ratifying and confirming all that said attorneys and agents and each of them may do by virtue hereof.

     IN WITNESS WHEREOF, the undersigned has hereunto set his hand and seal.

/s/ James B. Ream  

James B. Ream 

Director 

Date:           2-17-2011          

POWER OF ATTORNEY

     The undersigned director of GATX Corporation, a New York corporation, does hereby constitute and appoint Robert C. Lyons, Deborah A. Golden and William M. Muckian or any of them, attorneys and agents of the undersigned, with full power and authority to sign in such director’s name, and on behalf of GATX Corporation, the 2010 Annual Report on Form 10-K, under the Securities Exchange Act of 1934, together with any amendments thereto, hereby ratifying and confirming all that said attorneys and agents and each of them may do by virtue hereof.

     IN WITNESS WHEREOF, the undersigned has hereunto set his hand and seal.

/s/ David S. Sutherland  

David S. Sutherland  

Director 

Date:           2-21-2011          

EXHIBIT 24

POWER OF ATTORNEY

     The undersigned director of GATX Corporation, a New York corporation, does hereby constitute and appoint Robert C. Lyons, Deborah A. Golden and William M. Muckian or any of them, attorneys and agents of the undersigned, with full power and authority to sign in such director’s name, and on behalf of GATX Corporation, the 2010 Annual Report on Form 10-K, under the Securities Exchange Act of 1934, together with any amendments thereto, hereby ratifying and confirming all that said attorneys and agents and each of them may do by virtue hereof.

     IN WITNESS WHEREOF, the undersigned has hereunto set his hand and seal.

/s/ Casey J. Sylla  

Casey J. Sylla

Director 

Date:           2-16-2011