Exhibit 24.1

POWER OF ATTORNEY OF VIRGINIA M. ROMETTY

KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned Chairman, President and Chief Executive Officer and Director of International Business Machines Corporation, a New York corporation, which will file with the U.S. Securities and Exchange Commission, Washington, D.C., under the provisions of the securities laws, an Annual Report for 2014 on Form 10-K, hereby constitutes and appoints Simon J. Beaumont, Michelle H. Browdy, Christina M. Montgomery, Martin J. Schroeter and Stanley J. Sutula III, as true and lawful attorneys-in-fact and agents for the undersigned, and each of them with full power to act without the others, for the undersigned and in the name, place and stead of the undersigned, in any and all capacities, to sign or cause to be signed electronically said Annual Report on Form 10-K and any and all amendments thereto, and any and all other documents in connection therewith, with the Securities and Exchange Commission, hereby granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform any and all acts and things requisite and necessary to be done, as fully to all intents and purposes as the undersigned might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents or any of them may lawfully do or cause to be done by virtue hereof.  This Power of Attorney may only be revoked by a written document executed by the undersigned that expressly revokes this power by referring to the date and subject hereof.

IN WITNESS WHEREOF, the undersigned has executed this Power of Attorney this 24th day of February 2015.

/s/ Virginia M. Rometty

Virginia M. Rometty

Chairman, President and

Chief Executive Officer

POWER OF ATTORNEY OF MARTIN J. SCHROETER

KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned Senior Vice President and Chief Financial Officer of International Business Machines Corporation, a New York corporation, which will file with U.S. Securities and Exchange Commission, Washington, D.C., under the provisions of the securities laws, an Annual Report for 2014 on Form 10-K, hereby constitutes and appoints Simon J. Beaumont, Michelle H. Browdy, Christina M. Montgomery, Virginia M. Rometty, and Stanley J. Sutula III, as true and lawful attorneys-in-fact and agents for the undersigned, and each of them with full power to act without the others, for the undersigned and in the name, place and stead of the undersigned, in any and all capacities, to sign or cause to be signed electronically said Annual Report on Form 10-K and any and all amendments thereto, and any and all other documents in connection therewith, with the Securities and Exchange Commission, hereby granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform any and all acts and things requisite and necessary to be done, as fully to all intents and purposes as the undersigned might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents or any of them may lawfully do or cause to be done by virtue hereof.  This Power of Attorney may only be revoked by a written document executed by the undersigned that expressly revokes this power by referring to the date and subject hereof.

IN WITNESS WHEREOF, the undersigned has executed this Power of Attorney this 24th day of February 2015.

/s/ Martin J. Schroeter

Martin J. Schroeter

Senior Vice President and

Chief Financial Officer

POWER OF ATTORNEY OF STANLEY J. SUTULA, III

KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned Vice President and Controller of International Business Machines Corporation, a New York corporation, which will file with the U.S. Securities and Exchange Commission, Washington, D.C., under the provisions of the securities laws, an Annual Report for 2014 on Form 10-K, hereby constitutes and appoints Simon J. Beaumont, Michelle H. Browdy, Christina M. Montgomery, Virginia M. Rometty, and Martin J. Schroeter, as true and lawful attorneys-in-fact and agents for the undersigned, and each of them with full power to act without the others, for the undersigned and in the name, place and stead of the undersigned, in any and all capacities, to sign or cause to be signed electronically said Annual Report on Form 10-K and any and all amendments thereto, and any and all other documents in connection therewith, with the Securities and Exchange Commission, hereby granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform any and all acts and things requisite and necessary to be done, as fully to all intents and purposes as the undersigned might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents or any of them may lawfully do or cause to be done by virtue hereof.  This Power of Attorney may only be revoked by a written document executed by the undersigned that expressly revokes this power by referring to the date and subject hereof.

IN WITNESS WHEREOF, the undersigned has executed this Power of Attorney this 24th day of February 2015.

/s/ Stanley J. Sutula III

Stanley J. Sutula III

Vice President and Controller

POWER OF ATTORNEY OF IBM DIRECTOR

KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned Director of International Business Machines Corporation, a New York corporation, which will file with the U.S. Securities and Exchange Commission, Washington, D.C., under the provisions of the securities laws, an Annual Report for 2014 on Form 10-K, hereby constitutes and appoints Simon J. Beaumont, Michelle H. Browdy, Christina M. Montgomery, Virginia M. Rometty, Martin J. Schroeter and Stanley J. Sutula III, as true and lawful attorneys-in-fact and agents for the undersigned, and each of them with full power to act without the others, for the undersigned and in the name, place and stead of the undersigned, in any and all capacities, to sign or cause to be signed electronically said Annual Report on Form 10-K and any and all amendments thereto, and any and all other documents in connection therewith, with the Securities and Exchange Commission, hereby granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform any and all acts and things requisite and necessary to be done, as fully to all intents and purposes as the undersigned might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents or any of them may lawfully do or cause to be done by virtue hereof.  This Power of Attorney may only be revoked by a written document executed by the undersigned that expressly revokes this power by referring to the date and subject hereof.

IN WITNESS WHEREOF, the undersigned has executed this Power of Attorney this 24th day of February 2015.

/s/ Alain J. P. Belda

Director

POWER OF ATTORNEY OF IBM DIRECTOR

KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned Director of International Business Machines Corporation, a New York corporation, which will file with the U.S. Securities and Exchange Commission, Washington, D.C., under the provisions of the securities laws, an Annual Report for 2014 on Form 10-K, hereby constitutes and appoints Simon J. Beaumont, Michelle H. Browdy, Christina M. Montgomery, Virginia M. Rometty, Martin J. Schroeter and Stanley J. Sutula III, as true and lawful attorneys-in-fact and agents for the undersigned, and each of them with full power to act without the others, for the undersigned and in the name, place and stead of the undersigned, in any and all capacities, to sign or cause to be signed electronically said Annual Report on Form 10-K and any and all amendments thereto, and any and all other documents in connection therewith, with the Securities and Exchange Commission, hereby granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform any and all acts and things requisite and necessary to be done, as fully to all intents and purposes as the undersigned might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents or any of them may lawfully do or cause to be done by virtue hereof.  This Power of Attorney may only be revoked by a written document executed by the undersigned that expressly revokes this power by referring to the date and subject hereof.

IN WITNESS WHEREOF, the undersigned has executed this Power of Attorney this 24th day of February 2015.

/s/ William R. Brody

Director

POWER OF ATTORNEY OF IBM DIRECTOR

KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned Director of International Business Machines Corporation, a New York corporation, which will file with the U.S. Securities and Exchange Commission, Washington, D.C., under the provisions of the securities laws, an Annual Report for 2014 on Form 10-K, hereby constitutes and appoints Simon J. Beaumont, Michelle H. Browdy, Christina M. Montgomery, Virginia M. Rometty, Martin J. Schroeter and Stanley J. Sutula III, as true and lawful attorneys-in-fact and agents for the undersigned, and each of them with full power to act without the others, for the undersigned and in the name, place and stead of the undersigned, in any and all capacities, to sign or cause to be signed electronically said Annual Report on Form 10-K and any and all amendments thereto, and any and all other documents in connection therewith, with the Securities and Exchange Commission, hereby granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform any and all acts and things requisite and necessary to be done, as fully to all intents and purposes as the undersigned might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents or any of them may lawfully do or cause to be done by virtue hereof.  This Power of Attorney may only be revoked by a written document executed by the undersigned that expressly revokes this power by referring to the date and subject hereof.

IN WITNESS WHEREOF, the undersigned has executed this Power of Attorney this 24th day of February 2015.

/s/ Kenneth I. Chenault

Director

POWER OF ATTORNEY OF IBM DIRECTOR

KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned Director of International Business Machines Corporation, a New York corporation, which will file with the U.S. Securities and Exchange Commission, Washington, D.C., under the provisions of the securities laws, an Annual Report for 2014 on Form 10-K, hereby constitutes and appoints Simon J. Beaumont, Michelle H. Browdy, Christina M. Montgomery, Virginia M. Rometty, Martin J. Schroeter and Stanley J. Sutula III, as true and lawful attorneys-in-fact and agents for the undersigned, and each of them with full power to act without the others, for the undersigned and in the name, place and stead of the undersigned, in any and all capacities, to sign or cause to be signed electronically said Annual Report on Form 10-K and any and all amendments thereto, and any and all other documents in connection therewith, with the Securities and Exchange Commission, hereby granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform any and all acts and things requisite and necessary to be done, as fully to all intents and purposes as the undersigned might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents or any of them may lawfully do or cause to be done by virtue hereof.  This Power of Attorney may only be revoked by a written document executed by the undersigned that expressly revokes this power by referring to the date and subject hereof.

IN WITNESS WHEREOF, the undersigned has executed this Power of Attorney this 24th day of February 2015.

/s/ Michael L. Eskew

Director

POWER OF ATTORNEY OF IBM DIRECTOR

KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned Director of International Business Machines Corporation, a New York corporation, which will file with the U.S. Securities and Exchange Commission, Washington, D.C., under the provisions of the securities laws, an Annual Report for 2014 on Form 10-K, hereby constitutes and appoints Simon J. Beaumont, Michelle H. Browdy, Christina M. Montgomery, Virginia M. Rometty, Martin J. Schroeter and Stanley J. Sutula III, as true and lawful attorneys-in-fact and agents for the undersigned, and each of them with full power to act without the others, for the undersigned and in the name, place and stead of the undersigned, in any and all capacities, to sign or cause to be signed electronically said Annual Report on Form 10-K and any and all amendments thereto, and any and all other documents in connection therewith, with the Securities and Exchange Commission, hereby granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform any and all acts and things requisite and necessary to be done, as fully to all intents and purposes as the undersigned might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents or any of them may lawfully do or cause to be done by virtue hereof.  This Power of Attorney may only be revoked by a written document executed by the undersigned that expressly revokes this power by referring to the date and subject hereof.

IN WITNESS WHEREOF, the undersigned has executed this Power of Attorney this 24th day of February 2015.

/s/ David N. Farr

Director

POWER OF ATTORNEY OF IBM DIRECTOR

KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned Director of International Business Machines Corporation, a New York corporation, which will file with the U.S. Securities and Exchange Commission, Washington, D.C., under the provisions of the securities laws, an Annual Report for 2014 on Form 10-K, hereby constitutes and appoints Simon J. Beaumont, Michelle H. Browdy, Christina M. Montgomery, Virginia M. Rometty, Martin J. Schroeter and Stanley J. Sutula III, as true and lawful attorneys-in-fact and agents for the undersigned, and each of them with full power to act without the others, for the undersigned and in the name, place and stead of the undersigned, in any and all capacities, to sign or cause to be signed electronically said Annual Report on Form 10-K and any and all amendments thereto, and any and all other documents in connection therewith, with the Securities and Exchange Commission, hereby granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform any and all acts and things requisite and necessary to be done, as fully to all intents and purposes as the undersigned might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents or any of them may lawfully do or cause to be done by virtue hereof.  This Power of Attorney may only be revoked by a written document executed by the undersigned that expressly revokes this power by referring to the date and subject hereof.

IN WITNESS WHEREOF, the undersigned has executed this Power of Attorney this 24th day of February 2015.

/s/ Alex Gorsky

Director

POWER OF ATTORNEY OF IBM DIRECTOR

KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned Director of International Business Machines Corporation, a New York corporation, which will file with the U.S. Securities and Exchange Commission, Washington, D.C., under the provisions of the securities laws, an Annual Report for 2014 on Form 10-K, hereby constitutes and appoints Simon J. Beaumont, Michelle H. Browdy, Christina M. Montgomery, Virginia M. Rometty, Martin J. Schroeter and Stanley J. Sutula III, as true and lawful attorneys-in-fact and agents for the undersigned, and each of them with full power to act without the others, for the undersigned and in the name, place and stead of the undersigned, in any and all capacities, to sign or cause to be signed electronically said Annual Report on Form 10-K and any and all amendments thereto, and any and all other documents in connection therewith, with the Securities and Exchange Commission, hereby granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform any and all acts and things requisite and necessary to be done, as fully to all intents and purposes as the undersigned might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents or any of them may lawfully do or cause to be done by virtue hereof.  This Power of Attorney may only be revoked by a written document executed by the undersigned that expressly revokes this power by referring to the date and subject hereof.

IN WITNESS WHEREOF, the undersigned has executed this Power of Attorney this 24th day of February 2015.

/s/ Shirley Ann Jackson

Director

POWER OF ATTORNEY OF IBM DIRECTOR

KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned Director of International Business Machines Corporation, a New York corporation, which will file with the U.S. Securities and Exchange Commission, Washington, D.C., under the provisions of the securities laws, an Annual Report for 2014 on Form 10-K, hereby constitutes and appoints Simon J. Beaumont, Michelle H. Browdy, Christina M. Montgomery, Virginia M. Rometty, Martin J. Schroeter and Stanley J. Sutula III, as true and lawful attorneys-in-fact and agents for the undersigned, and each of them with full power to act without the others, for the undersigned and in the name, place and stead of the undersigned, in any and all capacities, to sign or cause to be signed electronically said Annual Report on Form 10-K and any and all amendments thereto, and any and all other documents in connection therewith, with the Securities and Exchange Commission, hereby granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform any and all acts and things requisite and necessary to be done, as fully to all intents and purposes as the undersigned might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents or any of them may lawfully do or cause to be done by virtue hereof.  This Power of Attorney may only be revoked by a written document executed by the undersigned that expressly revokes this power by referring to the date and subject hereof.

IN WITNESS WHEREOF, the undersigned has executed this Power of Attorney this 24th day of February 2015.

/s/ Andrew N. Liveris

Director

POWER OF ATTORNEY OF IBM DIRECTOR

KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned Director of International Business Machines Corporation, a New York corporation, which will file with the U.S. Securities and Exchange Commission, Washington, D.C., under the provisions of the securities laws, an Annual Report for 2014 on Form 10-K, hereby constitutes and appoints Simon J. Beaumont, Michelle H. Browdy, Christina M. Montgomery, Virginia M. Rometty, Martin J. Schroeter and Stanley J. Sutula III, as true and lawful attorneys-in-fact and agents for the undersigned, and each of them with full power to act without the others, for the undersigned and in the name, place and stead of the undersigned, in any and all capacities, to sign or cause to be signed electronically said Annual Report on Form 10-K and any and all amendments thereto, and any and all other documents in connection therewith, with the Securities and Exchange Commission, hereby granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform any and all acts and things requisite and necessary to be done, as fully to all intents and purposes as the undersigned might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents or any of them may lawfully do or cause to be done by virtue hereof.  This Power of Attorney may only be revoked by a written document executed by the undersigned that expressly revokes this power by referring to the date and subject hereof.

IN WITNESS WHEREOF, the undersigned has executed this Power of Attorney this 24th day of February 2015.

/s/ W. James McNerney, Jr.

Director

POWER OF ATTORNEY OF IBM DIRECTOR

KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned Director of International Business Machines Corporation, a New York corporation, which will file with the U.S. Securities and Exchange Commission, Washington, D.C., under the provisions of the securities laws, an Annual Report for 2014 on Form 10-K, hereby constitutes and appoints Simon J. Beaumont, Michelle H. Browdy, Christina M. Montgomery, Virginia M. Rometty, Martin J. Schroeter and Stanley J. Sutula III, as true and lawful attorneys-in-fact and agents for the undersigned, and each of them with full power to act without the others, for the undersigned and in the name, place and stead of the undersigned, in any and all capacities, to sign or cause to be signed electronically said Annual Report on Form 10-K and any and all amendments thereto, and any and all other documents in connection therewith, with the Securities and Exchange Commission, hereby granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform any and all acts and things requisite and necessary to be done, as fully to all intents and purposes as the undersigned might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents or any of them may lawfully do or cause to be done by virtue hereof.  This Power of Attorney may only be revoked by a written document executed by the undersigned that expressly revokes this power by referring to the date and subject hereof.

IN WITNESS WHEREOF, the undersigned has executed this Power of Attorney this 24th day of February 2015.

/s/ James W. Owens

Director

POWER OF ATTORNEY OF IBM DIRECTOR

KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned Director of International Business Machines Corporation, a New York corporation, which will file with the U.S. Securities and Exchange Commission, Washington, D.C., under the provisions of the securities laws, an Annual Report for 2014 on Form 10-K, hereby constitutes and appoints Simon J. Beaumont, Michelle H. Browdy, Christina M. Montgomery, Virginia M. Rometty, Martin J. Schroeter and Stanley J. Sutula III, as true and lawful attorneys-in-fact and agents for the undersigned, and each of them with full power to act without the others, for the undersigned and in the name, place and stead of the undersigned, in any and all capacities, to sign or cause to be signed electronically said Annual Report on Form 10-K and any and all amendments thereto, and any and all other documents in connection therewith, with the Securities and Exchange Commission, hereby granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform any and all acts and things requisite and necessary to be done, as fully to all intents and purposes as the undersigned might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents or any of them may lawfully do or cause to be done by virtue hereof.  This Power of Attorney may only be revoked by a written document executed by the undersigned that expressly revokes this power by referring to the date and subject hereof.

IN WITNESS WHEREOF, the undersigned has executed this Power of Attorney this 24th day of February 2015.

/s/ Joan E. Spero

Director

POWER OF ATTORNEY OF IBM DIRECTOR

KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned Director of International Business Machines Corporation, a New York corporation, which will file with the U.S. Securities and Exchange Commission, Washington, D.C., under the provisions of the securities laws, an Annual Report for 2014 on Form 10-K, hereby constitutes and appoints Simon J. Beaumont, Michelle H. Browdy, Christina M. Montgomery, Virginia M. Rometty, Martin J. Schroeter and Stanley J. Sutula III, as true and lawful attorneys-in-fact and agents for the undersigned, and each of them with full power to act without the others, for the undersigned and in the name, place and stead of the undersigned, in any and all capacities, to sign or cause to be signed electronically said Annual Report on Form 10-K and any and all amendments thereto, and any and all other documents in connection therewith, with the Securities and Exchange Commission, hereby granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform any and all acts and things requisite and necessary to be done, as fully to all intents and purposes as the undersigned might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents or any of them may lawfully do or cause to be done by virtue hereof.  This Power of Attorney may only be revoked by a written document executed by the undersigned that expressly revokes this power by referring to the date and subject hereof.

IN WITNESS WHEREOF, the undersigned has executed this Power of Attorney this 24th day of February 2015.

/s/ Sidney Taurel

Director

POWER OF ATTORNEY OF IBM DIRECTOR

KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned Director of International Business Machines Corporation, a New York corporation, which will file with the U.S. Securities and Exchange Commission, Washington, D.C., under the provisions of the securities laws, an Annual Report for 2014 on Form 10-K, hereby constitutes and appoints Simon J. Beaumont, Michelle H. Browdy, Christina M. Montgomery, Virginia M. Rometty, Martin J. Schroeter and Stanley J. Sutula III, as true and lawful attorneys-in-fact and agents for the undersigned, and each of them with full power to act without the others, for the undersigned and in the name, place and stead of the undersigned, in any and all capacities, to sign or cause to be signed electronically said Annual Report on Form 10-K and any and all amendments thereto, and any and all other documents in connection therewith, with the Securities and Exchange Commission, hereby granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform any and all acts and things requisite and necessary to be done, as fully to all intents and purposes as the undersigned might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents or any of them may lawfully do or cause to be done by virtue hereof.  This Power of Attorney may only be revoked by a written document executed by the undersigned that expressly revokes this power by referring to the date and subject hereof.

IN WITNESS WHEREOF, the undersigned has executed this Power of Attorney this 24th day of February 2015.

/s/ Peter R. Voser

Director