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 Annual Report on Form 10-K for the year ended December 31, 2011, 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:            2/14/12          

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 Annual Report on Form 10-K for the year ended December 31, 2011, 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:            2/13/12          

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 Annual Report on Form 10-K for the year ended December 31, 2011, 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. Haberli

Ernst A. Haberli

Director

Date:            2/17/12          

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 Annual Report on Form 10-K for the year ended December 31, 2011, 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:           2-20-12

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 Annual Report on Form 10-K for the year ended December 31, 2011, 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:       Feb. 14, 2012

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 Annual Report on Form 10-K for the year ended December 31, 2011, 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:           2/14/12

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 Annual Report on Form 10-K for the year ended December 31, 2011, 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/ Robert J. Ritchie
	Robert J. Ritchie
	Director
Date:           2/17/12

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 Annual Report on Form 10-K for the year ended December 31, 2011, 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:       Feb 11, 2012      

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 Annual Report on Form 10-K for the year ended December 31, 2011, 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:           2/14/12