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 Roger L. Hale, Janet M.
Dolan and Bruce J. Borgerding, and each or any one of them, his true and lawful
attorneys-in-fact, with power of substitution, for him and in his name, place
and stead, to sign and affix his  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,
Washington, D.C., 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 Non-Employee
Director Stock Option Plan, and to file the same with the Commission, 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 12th day
of May, 1997.


                                        /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 Roger L. Hale, Janet M.
Dolan and Bruce J. Borgerding, and each or any one of them, his true and lawful
attorneys-in-fact, with power of substitution, for him and in his name, place
and stead, to sign and affix his  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,
Washington, D.C., 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 Non-Employee
Director Stock Option Plan, and to file the same with the Commission, 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 12th day
of May, 1997.


                                       /s/ Mahedi A. Jiwani               
                              ---------------------------------------------



                                   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 Roger L. Hale, Janet M.
Dolan and Bruce J. Borgerding, and each or any one of them, his true and lawful
attorneys-in-fact, with power of substitution, for him and in his name, place
and stead, to sign and affix his  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,
Washington, D.C., 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 Non-Employee
Director Stock Option Plan, and to file the same with the Commission, 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 12th day
of May, 1997.


                                       /s/ Richard A. Snyder              
                              ---------------------------------------------



                                   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 Roger L. Hale, Janet M.
Dolan and Bruce J. Borgerding, and each or any one of them, his true and lawful
attorneys-in-fact, with power of substitution, for him and in his name, place
and stead, to sign and affix his  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,
Washington, D.C., 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 Non-Employee
Director Stock Option Plan, and to file the same with the Commission, 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 12th day
of May, 1997.


                                       /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 Roger L. Hale, Janet M.
Dolan and Bruce J. Borgerding, and each or any one of them, his true and lawful
attorneys-in-fact, with power of substitution, for him and in his name, place
and stead, to sign and affix his  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,
Washington, D.C., 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 Non-Employee
Director Stock Option Plan, and to file the same with the Commission, 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 12th day
of May, 1997.

                                       /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 Roger L. Hale, Janet M.
Dolan and Bruce J. Borgerding, and each or any one of them, his true and lawful
attorneys-in-fact, with power of substitution, for him and in his name, place
and stead, to sign and affix his  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,
Washington, D.C., 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 Non-Employee
Director Stock Option Plan, and to file the same with the Commission, 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 12th day
of May, 1997.


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



                                   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 Roger L. Hale, Janet M.
Dolan and Bruce J. Borgerding, and each or any one of them, his true and lawful
attorneys-in-fact, with power of substitution, for him and in his name, place
and stead, to sign and affix his  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,
Washington, D.C., 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 Non-Employee
Director Stock Option Plan, and to file the same with the Commission, 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 12th day
of May, 1997.


                                       /s/ William A. Hodder              
                              ---------------------------------------------



                                   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 Roger L. Hale, Janet M.
Dolan and Bruce J. Borgerding, and each or any one of them, his true and lawful
attorneys-in-fact, with power of substitution, for him and in his name, place
and stead, to sign and affix his  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,
Washington, D.C., 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 Non-Employee
Director Stock Option Plan, and to file the same with the Commission, 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 12th day
of May, 1997.


                                       /s/ Delbert W. Johnson             
                              ---------------------------------------------



                                   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 Roger L. Hale, Janet M.
Dolan and Bruce J. Borgerding, and each or any one of them, his true and lawful
attorneys-in-fact, with power of substitution, for him and in his name, place
and stead, to sign and affix his  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,
Washington, D.C., 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 Non-Employee
Director Stock Option Plan, and to file the same with the Commission, 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 12th day
of May, 1997.


                                       /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 Roger L. Hale, Janet M.
Dolan and Bruce J. Borgerding, and each or any one of them, his true and lawful
attorneys-in-fact, with power of substitution, for him and in his name, place
and stead, to sign and affix his  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,
Washington, D.C., 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 Non-Employee
Director Stock Option Plan, and to file the same with the Commission, 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 12th day
of May, 1997.


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