Our Partners, Patrick De Sio, CPA, CGMA and Steve Franzen, CPA, PFS, CGMA have provided trusted guidance and planning to their clients collectively for over 50 years. Patrick De Sio founded Patrick M. De Sio, Ltd. in 1981 after serving as a Tax Auditor and Revenue Agent in the Chicago District of the Internal Revenue Service. Fifteen years later in 1996, Steven Franzen joined the firm as a Partner and renamed the firm De Sio, Franzen and Associates, Ltd. Over the next 20 years, the firm has served over a thousand clients in over 35 states.

Supporting Charitable Organizations

Vertex Accounting Partners is proud to support a number of charitable organizations in the western suburbs of Chicago. We have also pledged support to the Employer Support of the Guard and Reserve to support military and veterans. If you would like to support any of these great organizations, please contact us at in**@ve********.com.

  • Friends of FermiLab
  • Waubonsie Valley Hockey Club
  • Kaneland Youth Football League
  • Cornerstone Retreat Center
  • Rebuilding Aurora Together
  • Summertime to Give



Meet the Team