EX-32.1 6 c62861exv32w1.htm EX-32.1 exv32w1
Exhibit 32.1
     Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, each of the undersigned certifies that this periodic report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that information contained in this periodic report fairly presents, in all material respects, the financial condition and results of operations of SPS Commerce, Inc.
March 3, 2011
         
     
  /s/ ARCHIE C. BLACK    
  Archie C. Black   
  President and Chief Executive Officer   
 
     
  /s/ KIMBERLY K. NELSON    
  Kimberly K. Nelson   
  Executive Vice President and Chief Financial Officer