Directions to KOLNICKI, PETERSON & WIRTH, LLC Directions to KOLNICKI, PETERSON & WIRTH, LLC Search | Advanced Search | New Members | Coupons and Discounts | All Categories Business & Professional Services >> Accountants - Certified Public KOLNICKI, PETERSON & WIRTH, LLC 1400 Opus Place, Suite 100Downers Grove, IL 60515 | map (630) 390-1140 | fax: (630) 390-1150 Visit Site Get directions to: KOLNICKI, PETERSON & WIRTH, LLC, 1400 Opus Place, Suite 100, Downers Grove IL Get directions from: Click to Print This Page If your business isn't here, contact us today to get listed!