Exhibit 24


                                  TENNANT COMPANY

                                 Power of Attorney
                             of Director and/or Officer


     The undersigned director and/or officer of Tennant Company, a Minnesota
corporation, does hereby make, constitute and appoint Janet M. Dolan, James H.
Moar and Bruce J. Borgerding, and each or any one of them, his or her true and
lawful attorneys-in-fact, with power of substitution, for the undersigned and in
his or her name, place and stead, to sign and affix the undersigned's name as
director and/or officer of the Company to a Registration Statement or
Registration Statements, on Form S-8 or other applicable form, and all
amendments (including post-effective amendments) thereto, to be filed by the
Company with the Securities and Exchange Commission, in connection with the
registration under the Securities Act of 1933, as amended, of shares of Common
Stock or other securities proposed to be issued or sold by the Company pursuant
to the Tennant Company 1999 Stock Incentive Plan, and to file the same with the
SEC, granting unto these attorneys-in-fact, and each of them, full power and
authority to do and perform any and all acts necessary or incidental to the
performance and execution of the powers herein expressly granted.

     IN WITNESS WHEREOF, the undersigned has hereunto set his hand this 3rd day
of June, 1999.


                                        /s/ Janet M. Dolan
                                     ---------------------------






                                  TENNANT COMPANY

                                 Power of Attorney
                             of Director and/or Officer


     The undersigned director and/or officer of Tennant Company, a Minnesota
corporation, does hereby make, constitute and appoint Janet M. Dolan, James H.
Moar and Bruce J. Borgerding, and each or any one of them, his or her true and
lawful attorneys-in-fact, with power of substitution, for the undersigned and in
his or her name, place and stead, to sign and affix the undersigned's name as
director and/or officer of the Company to a Registration Statement or
Registration Statements, on Form S-8 or other applicable form, and all
amendments (including post-effective amendments) thereto, to be filed by the
Company with the Securities and Exchange Commission, in connection with the
registration under the Securities Act of 1933, as amended, of shares of Common
Stock or other securities proposed to be issued or sold by the Company pursuant
to the Tennant Company 1999 Stock Incentive Plan, and to file the same with the
SEC, granting unto these attorneys-in-fact, and each of them, full power and
authority to do and perform any and all acts necessary or incidental to the
performance and execution of the powers herein expressly granted.

     IN WITNESS WHEREOF, the undersigned has hereunto set his hand this 3rd day
of June, 1999.


                                        /s/ John T. Pain
                                   ------------------------------



                                  TENNANT COMPANY

                                 Power of Attorney
                             of Director and/or Officer


     The undersigned director and/or officer of Tennant Company, a Minnesota
corporation, does hereby make, constitute and appoint Janet M. Dolan, James H.
Moar and Bruce J. Borgerding, and each or any one of them, his or her true and
lawful attorneys-in-fact, with power of substitution, for the undersigned and in
his or her name, place and stead, to sign and affix the undersigned's name as
director and/or officer of the Company to a Registration Statement or
Registration Statements, on Form S-8 or other applicable form, and all
amendments (including post-effective amendments) thereto, to be filed by the
Company with the Securities and Exchange Commission, in connection with the
registration under the Securities Act of 1933, as amended, of shares of Common
Stock or other securities proposed to be issued or sold by the Company pursuant
to the Tennant Company 1999 Stock Incentive Plan, and to file the same with the
SEC, granting unto these attorneys-in-fact, and each of them, full power and
authority to do and perform any and all acts necessary or incidental to the
performance and execution of the powers herein expressly granted.

     IN WITNESS WHEREOF, the undersigned has hereunto set his hand this 2nd day
of June,  1999.


                                        /s/ Dean A. Niehus
                                  ----------------------------



                                  TENNANT COMPANY

                                 Power of Attorney
                             of Director and/or Officer


     The undersigned director and/or officer of Tennant Company, a Minnesota
corporation, does hereby make, constitute and appoint Janet M. Dolan, James H.
Moar and Bruce J. Borgerding, and each or any one of them, his or her true and
lawful attorneys-in-fact, with power of substitution, for the undersigned and in
his or her name, place and stead, to sign and affix the undersigned's name as
director and/or officer of the Company to a Registration Statement or
Registration Statements, on Form S-8 or other applicable form, and all
amendments (including post-effective amendments) thereto, to be filed by the
Company with the Securities and Exchange Commission, in connection with the
registration under the Securities Act of 1933, as amended, of shares of Common
Stock or other securities proposed to be issued or sold by the Company pursuant
to the Tennant Company 1999 Stock Incentive Plan, and to file the same with the
SEC, granting unto these attorneys-in-fact, and each of them, full power and
authority to do and perform any and all acts necessary or incidental to the
performance and execution of the powers herein expressly granted.

     IN WITNESS WHEREOF, the undersigned has hereunto set his hand this 5th day
of June, 1999.


                                        /s/ Arthur D. Collins, Jr.
                                   -------------------------------------



                                  TENNANT COMPANY

                                 Power of Attorney
                             of Director and/or Officer


     The undersigned director and/or officer of Tennant Company, a Minnesota
corporation, does hereby make, constitute and appoint Janet M. Dolan, James H.
Moar and Bruce J. Borgerding, and each or any one of them, his or her true and
lawful attorneys-in-fact, with power of substitution, for the undersigned and in
his or her name, place and stead, to sign and affix the undersigned's name as
director and/or officer of the Company to a Registration Statement or
Registration Statements, on Form S-8 or other applicable form, and all
amendments (including post-effective amendments) thereto, to be filed by the
Company with the Securities and Exchange Commission, in connection with the
registration under the Securities Act of 1933, as amended, of shares of Common
Stock or other securities proposed to be issued or sold by the Company pursuant
to the Tennant Company 1999 Stock Incentive Plan, and to file the same with the
SEC, granting unto these attorneys-in-fact, and each of them, full power and
authority to do and perform any and all acts necessary or incidental to the
performance and execution of the powers herein expressly granted.

     IN WITNESS WHEREOF, the undersigned has hereunto set his hand this 3rd day
of June, 1999.


                                        /s/ David C. Cox
                                    ------------------------



                                  TENNANT COMPANY

                                 Power of Attorney
                             of Director and/or Officer


     The undersigned director and/or officer of Tennant Company, a Minnesota
corporation, does hereby make, constitute and appoint Janet M. Dolan, James H.
Moar and Bruce J. Borgerding, and each or any one of them, his or her true and
lawful attorneys-in-fact, with power of substitution, for the undersigned and in
his or her name, place and stead, to sign and affix the undersigned's name as
director and/or officer of the Company to a Registration Statement or
Registration Statements, on Form S-8 or other applicable form, and all
amendments (including post-effective amendments) thereto, to be filed by the
Company with the Securities and Exchange Commission, in connection with the
registration under the Securities Act of 1933, as amended, of shares of Common
Stock or other securities proposed to be issued or sold by the Company pursuant
to the Tennant Company 1999 Stock Incentive Plan, and to file the same with the
SEC, granting unto these attorneys-in-fact, and each of them, full power and
authority to do and perform any and all acts necessary or incidental to the
performance and execution of the powers herein expressly granted.

     IN WITNESS WHEREOF, the undersigned has hereunto set his hand this 7th day
of June, 1999.


                                        /s/ Andrew P. Czajkowski
                                   ------------------------------



                           TENNANT COMPANY TENNANT COMPANY

                                 Power of Attorney
                             of Director and/or Officer


     The undersigned director and/or officer of Tennant Company, a Minnesota
corporation, does hereby make, constitute and appoint Janet M. Dolan, James H.
Moar and Bruce J. Borgerding, and each or any one of them, his or her true and
lawful attorneys-in-fact, with power of substitution, for the undersigned and in
his or her name, place and stead, to sign and affix the undersigned's name as
director and/or officer of the Company to a Registration Statement or
Registration Statements, on Form S-8 or other applicable form, and all
amendments (including post-effective amendments) thereto, to be filed by the
Company with the Securities and Exchange Commission, in connection with the
registration under the Securities Act of 1933, as amended, of shares of Common
Stock or other securities proposed to be issued or sold by the Company pursuant
to the Tennant Company 1999 Stock Incentive Plan, and to file the same with the
SEC, granting unto these attorneys-in-fact, and each of them, full power and
authority to do and perform any and all acts necessary or incidental to the
performance and execution of the powers herein expressly granted.

     IN WITNESS WHEREOF, the undersigned has hereunto set his hand this 3rd day
of June, 1999.


                                        /s/ Roger L. Hale
                                     ------------------------


                                  TENNANT COMPANY

                                 Power of Attorney
                             of Director and/or Officer


     The undersigned director and/or officer of Tennant Company, a Minnesota
corporation, does hereby make, constitute and appoint Janet M. Dolan, James H.
Moar and Bruce J. Borgerding, and each or any one of them, his or her true and
lawful attorneys-in-fact, with power of substitution, for the undersigned and in
his or her name, place and stead, to sign and affix the undersigned's name as
director and/or officer of the Company to a Registration Statement or
Registration Statements, on Form S-8 or other applicable form, and all
amendments (including post-effective amendments) thereto, to be filed by the
Company with the Securities and Exchange Commission, in connection with the
registration under the Securities Act of 1933, as amended, of shares of Common
Stock or other securities proposed to be issued or sold by the Company pursuant
to the Tennant Company 1999 Stock Incentive Plan, and to file the same with the
SEC, granting unto these attorneys-in-fact, and each of them, full power and
authority to do and perform any and all acts necessary or incidental to the
performance and execution of the powers herein expressly granted.

     IN WITNESS WHEREOF, the undersigned has hereunto set his hand this 7th day
of June, 1999.


                                        /s/ William I. Miller
                                       ------------------------


                                  TENNANT COMPANY

                                 Power of Attorney
                             of Director and/or Officer


     The undersigned director and/or officer of Tennant Company, a Minnesota
corporation, does hereby make, constitute and appoint Janet M. Dolan, James H.
Moar and Bruce J. Borgerding, and each or any one of them, his or her true and
lawful attorneys-in-fact, with power of substitution, for the undersigned and in
his or her name, place and stead, to sign and affix the undersigned's name as
director and/or officer of the Company to a Registration Statement or
Registration Statements, on Form S-8 or other applicable form, and all
amendments (including post-effective amendments) thereto, to be filed by the
Company with the Securities and Exchange Commission, in connection with the
registration under the Securities Act of 1933, as amended, of shares of Common
Stock or other securities proposed to be issued or sold by the Company pursuant
to the Tennant Company 1999 Stock Incentive Plan, and to file the same with the
SEC, granting unto these attorneys-in-fact, and each of them, full power and
authority to do and perform any and all acts necessary or incidental to the
performance and execution of the powers herein expressly granted.

     IN WITNESS WHEREOF, the undersigned has hereunto set his hand this 5th day
of June, 1999.


                                        /s/ Edwin L. Russell
                                     ------------------------