Our People

Our staff of architects, designers, engineers and project managers are experienced, highly skilled and trained, and widely recognized as the best in their fields.

portrait of john kneer

John Kneer

President, PLA

Email John

Community Involvement:

  • American Society of Landscape Architects
  • Council of Landscape Architectural Registration Boards Certified
  • City of Waupaca Park Board and Plan Commission

Areas of Expertise:

  • Project Management
  • Site Analysis and Site Design
  • Landscape Architecture
  • Construction Contract Administration
portrait of rick rettler

Rick Rettler

Senior Consultant, PLA

Email Rick

Community Involvement:

  • American Society of Landscape Architects
  • YMCA Board of Directors
  • St Michael’s Hospital Foundation Board of Directors
  • Stevens Point Pilot’s Association President
  • 2007 Plover Area Business Association Citizen of the Year
  • Portage County Community Enhancement Steering Committee
portrait of rick zahn

Rick Zahn

Civil Engineer, PE

Email Rick

Community Involvement:

  • National Society of Professional Engineers
  • Portage County Business Council Partners in Education Committee
  • Rotary International

Areas of Expertise:

  • Civil Site Design
  • Storm Water Planning and Analysis
  • Water and Wastewater System Project Management
  • Construction Contract Administration
  • Community Development – Grant Writing
  • Business Education Partnerships
  • Project Management
portrait of luke madden

Luke Madden

Construction Manager

lmadden@rettler.com

portrait of mike helmrick

Mike Helmrick

Project Manager

mhelmrick@rettler.com

portrait of aaron parks

Aaron Parks

Survey Manager, PLS

aparks@rettler.com