Chris Johnson                    chris pic.jpg

Chris Johnson has been with Johnson Environmental, a subsidiary of Integro Services Group, Inc., since 2009 and is responsible for new construction HERS ratings.  The majority of his career has consisted around the residential construction industry, managing construction sites to planning and developing neighborhoods.  His passion for the building science, has lead him to helping builders construct high performance homes that they can show their energy efficiency data in a manner that their customers understand.  Chris has delivered sessions though out the Midwest at such conferences as the Duluth Energy and Design, Minnesota Code Officials Training, along with providing training programs for building supply companies, Realtors and Homebuilders.  The topics include Building Science, Energy Efficient Home Programs and 2012 Code compliance.   Chris holds a RESNET rater license, a LEED for Homes license and BPI certifications.



Jim Johnsonjim photo.jpg

Jim Johnson has been in the construction business since he began roofing with his Father at the age of 14.  

After pursuing other careers, Jim returned to building homes in 1990 and has built over 200 homes. He received an Award of Excellence from the Home Builders Association of the Sioux Empire when participating in the Parade of Homes.

In 2009 Jim and his son Chris became RESNET HERS raters and began rating ENERGY STAR homes.

Jim is a licensed Home Inspector and Building Official.

In his free time Jim has a passion for boating. 


Wayne Wagner , AHFPwayne cropped.jpg

Wayne has held diverse opportunities in the Construction and Finance industries.

He has been a Housing Development Director in the City of Sioux Falls.  He has also managed and performed all tasks required to build over 40 energy efficient and affordable homes in three years.

Wayne has also been part of the Management teams for two large financial institutions to help streamline their costs and improve their operational controls.

In his free time Wayne enjoys spending time with his family and remodeling his acreage with his wife. 


Peter J. Bendorf, PE    

Peter is the Director and Owner of Integro Services Group, Inc., an Architectural pete pic.jpgand Engineering company.    He became a Licensed Professional Engineer in 1993 and is the Principal Engineer for Integro Services Group Inc.

Prior to his position with Integro Services Group, Inc. Peter held positions as an Engineer in the Fuel Ethanol industry.  Peter also served our Nation retiring with the rank of Major.  He then worked as a civilian with the Department of Navy as a Nuclear Engineer.  He is the original inventor, PATENT APP 32009181153 "Dry Mill Ethanol Plant Extraction Enhancement".

Peter is also the owner and principal attorney of Bendorf Law Firm, Inc.  He received his doctorate of Law in 1998 from the University of South Dakota.    


C. Thomas Bendorf, AIA

Thomas is currently the Architect for Integro Services Group, INC.  Prior to joining Integro he held several positions as Principal Architect.  He has specialized in Healthcare, Educational, Commercial, Government Facilities and Municipal Architectural Services. 

Thomas is a registered Architect in the states of Kentucky, Maryland, Virginia, Indiana and South Dakota