| 2024 | The American Board of Pediatric | 990 | Immediate Past President | 2 | $10,000 | $0 | View return |
| 2024 | Rccc Villa | 990 | Treasurer | 0 | $0 | $0 | View return |
| 2024 | Minnesota Heating and Cooling | 990EZ | Director | 1 | $0 | $0 | View return |
| 2024 | National Ohv Insurance and Services Group Inc | 990 | Board Member | 10 | $0 | $0 | View return |
| 2024 | Bethany House Services Inc. | 990 | Trustee - Exit 10/24 | 1 | $0 | $0 | View return |
| 2024 | Ruthven Community Care Center Inc. | 990 | Director | 0 | $0 | $0 | View return |
| 2024 | William S Olson Memorial Foundation Inc. | 990PF | Officer | 1 | $0 | $0 | View return |
| 2024 | Olson Family Foundation Inc. | 990PF | Secretary/Treasurer/Direct | 0.5 | $0 | $0 | View return |
| 2024 | Art Academy of Cincinnati | 990 | Trustee | 2 | $0 | $0 | View return |
| 2023 | Rochelle Community Hospital Association | 990 | Past CEO (Retired 3/2023) | 40 | $425,306 | $0 | View return |
| 2023 | The American Board of Pediatric | 990 | President (Thru 5/23)/Past P. | 2 | $35,000 | $0 | View return |
| 2023 | Minnesota Heating and Cooling | 990EZ | Director | 1 | $0 | $0 | View return |
| 2023 | Ruthven Community Care Center Inc. | 990 | Director | 0 | $0 | $0 | View return |
| 2023 | Rccc Villa | 990 | Treasurer | 0 | $0 | $0 | View return |
| 2023 | Bethany House Services Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2023 | International Union Security Police Fire Professionals of America | 990EZ | Trustee | 2 | $0 | $0 | View return |
| 2023 | Olson Family Foundation Inc. | 990PF | Secretary/Treasurer/Direct | 0.5 | $0 | $0 | View return |
| 2023 | William S Olson Memorial Foundation Inc. | 990PF | Officer | 1 | $0 | $0 | View return |
| 2023 | Wellcome Manor Family Services | 990 | Vice President | 1 | $0 | $0 | View return |
| 2023 | National Ohv Insurance and Services Group Inc | 990 | Board Member | 10 | $0 | $0 | View return |
| 2023 | Oasis Community Corporation | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Rochelle Community Hospital Association | 990 | CEO & Trustee (Term Ended) | 40 | $330,349 | $0 | View return |
| 2022 | The American Board of Pediatric | 990 | Vice President (Through May 2022) | 4 | $20,000 | $0 | View return |
| 2022 | Rochelle Community Hospital Foundation | 990 | CEO & Trustee | 5 | $0 | $330,349 | View return |
| 2022 | Bethany House Services Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2022 | William S Olson Memorial Foundation Inc. | 990PF | Officer | 1 | $0 | $0 | View return |
| 2022 | Rccc Villa | 990 | Director | 0 | $0 | $0 | View return |
| 2022 | Minnesota Heating and Cooling | 990EZ | Director | 1 | $0 | $0 | View return |
| 2022 | Wellcome Manor Family Services | 990 | Vice President | 1 | $0 | $0 | View return |
| 2022 | Ruthven Community Care Center Inc. | 990 | Director | 0 | $0 | $0 | View return |
| 2022 | The American Board of Pediatric | 990 | President (From June 2022) | 5 | $0 | $0 | View return |
| 2022 | Olson Family Foundation Inc. | 990PF | Secretary/Treasurer/Direct | 0.5 | $0 | $0 | View return |
| 2022 | National Ohv Insurance and Services Group Inc | 990 | Board Member | 10 | $0 | $0 | View return |
| 2022 | Oasis Community Corporation | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | International Union Security Police Fire Professionals of America | 990EZ | Trustee | 2 | $0 | $0 | View return |
| 2022 | Centro La Familia Advocacy Services Inc. | 990 | Director | 2 | $0 | $0 | View return |
| 2021 | Rochelle Community Hospital Association | 990 | CEO & Trustee | 40 | $324,570 | $0 | View return |
| 2021 | The American Board of Pediatric | 990 | Secretary | 4 | $5,000 | $0 | View return |
| 2021 | Rochelle Community Hospital Foundation | 990 | CEO & Trustee | 5 | $0 | $324,570 | View return |
| 2021 | Minnesota Heating and Cooling | 990EZ | Director | 1 | $0 | $0 | View return |
| 2021 | Olson Family Foundation Inc. | 990PF | Secretary/Treasurer/Direct | 0.5 | $0 | $0 | View return |
| 2021 | Bethany House Services Inc. | 990 | Trustee | 1 | $0 | $0 | View return |
| 2021 | Wellcome Manor Family Services | 990 | Vice President | 1 | $0 | $0 | View return |
| 2021 | National Ohv Insurance and Services Group Inc | 990 | Board Member | 10 | $0 | $0 | View return |
| 2021 | Ruthven Community Care Center Inc. | 990 | Director | 0 | $0 | $0 | View return |
| 2021 | Rccc Villa | 990 | Director | 0 | $0 | $0 | View return |
| 2021 | William S Olson Memorial Foundation Inc. | 990PF | Officer | 1 | $0 | $0 | View return |
| 2021 | Oasis Community Corporation | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Rochelle Community Hospital Association | 990 | CEO & Trustee | 40 | $285,806 | $0 | View return |
| 2020 | The American Board of Pediatric | 990 | Director | 4 | $5,000 | $0 | View return |
| 2020 | Rochelle Community Hospital Foundation | 990 | CEO & Trustee | 5 | $0 | $285,806 | View return |
| 2020 | Minnesota Heating and Cooling | 990EZ | Director | 1 | $0 | $0 | View return |
| 2020 | William S Olson Memorial Foundation Inc. | 990PF | Officer | 1 | $0 | $0 | View return |
| 2020 | National Ohv Insurance and Services Group Inc | 990 | Board Member | 10 | $0 | $0 | View return |
| 2020 | Bethany House Services Inc. | 990 | Trustee - Appointed 10/20 | 1 | $0 | $0 | View return |
| 2020 | Olson Family Foundation Inc. | 990PF | Secretary/Treasurer/Direct | 0.5 | $0 | $0 | View return |
| 2020 | Rccc Villa | 990 | Director | 0 | $0 | $0 | View return |
| 2020 | Ruthven Community Care Center Inc. | 990 | Director | 0 | $0 | $0 | View return |
| 2020 | Wellcome Manor Family Services | 990 | Vice President | 0 | $0 | $0 | View return |
| 2020 | Svdp St. Anne Oswego | 990EZ | President | 5 | $0 | - | View return |
| 2019 | The American Board of Pediatric | 990 | Director | 4 | $5,000 | $0 | View return |
| 2019 | Rccc Villa | 990 | Director | 0 | $0 | $0 | View return |
| 2019 | Olson Family Foundation Inc. | 990PF | Secretary/Treasurer/Direct | 0.5 | $0 | $0 | View return |
| 2019 | National Ohv Insurance and Services Group Inc | 990 | Board Member | 10 | $0 | $0 | View return |
| 2019 | Minnesota Heating and Cooling | 990EZ | Director | 1 | $0 | $0 | View return |
| 2019 | Ruthven Community Care Center Inc. | 990 | Director | 0 | $0 | $0 | View return |
| 2019 | William S Olson Memorial Foundation Inc. | 990PF | Officer | 1 | $0 | $0 | View return |
| 2019 | Rochelle Community Hospital Association | 990 | CEO & Trustee (Started Jan 2020) | 40 | $0 | $0 | View return |
| 2019 | Rochelle Community Hospital Foundation | 990 | CEO & Trustee (Started Jan 2020) | 5 | $0 | $0 | View return |
| 2019 | Wellcome Manor Family Services | 990 | Vice Preside | - | $0 | $0 | View return |
| 2018 | Minnesota Heating and Cooling | 990EZ | Director | 1 | $0 | $0 | View return |
| 2018 | National Ohv Insurance and Services Group Inc | 990 | Board Member | 1 | $0 | $0 | View return |
| 2018 | Rccc Villa | 990 | Director | 0 | $0 | $0 | View return |
| 2018 | William S Olson Memorial Foundation Inc. | 990PF | Officer | 0 | $0 | $0 | View return |
| 2018 | Ruthven Community Care Center Inc. | 990 | Director | 0 | $0 | $0 | View return |
| 2018 | Wellcome Manor Family Services | 990 | Vice Preside | - | $0 | $0 | View return |
| 2018 | Olson Family Foundation Inc. | 990PF | Secretary/Treasurer/Direct | 0.5 | $0 | $0 | View return |
| 2018 | The American Board of Pediatric | 990 | Director | 4 | $0 | $0 | View return |
| 2017 | National Ohv Insurance and Services Group Inc | 990EZ | Board Member | 1 | $0 | - | View return |
| 2017 | Olson Family Foundation Inc. | 990PF | Secretary/Treasurer/Direct | 0.5 | $0 | $0 | View return |
| 2017 | Wellcome Manor Family Services | 990 | Vice Preside | - | $0 | $0 | View return |
| 2017 | William S Olson Memorial Foundation Inc. | 990PF | Officer | 0 | $0 | $0 | View return |
| 2017 | Minnesota Heating and Cooling | 990EZ | Director | 1 | $0 | $0 | View return |
| 2016 | Aspirus Medford Hospital & Clinics Inc. | 990 | President / CEO | 40 | $377,054 | $0 | View return |
| 2016 | National Ohv Insurance and Services Group Inc | 990EZ | Board Member | 1 | $0 | - | View return |
| 2016 | Cedar Court Apartments | 990 | President/ CEO | 2 | $0 | $0 | View return |
| 2016 | Fulcrum Foundation Inc. | 990 | President/ CEO | 1 | $0 | $0 | View return |
| 2016 | Olson Family Foundation Inc. | 990PF | Secretary/Treasurer/Director | 0.5 | $0 | $0 | View return |
| 2016 | Minnesota Heating and Cooling | 990EZ | Director | 1 | $0 | $0 | View return |
| 2016 | William S Olson Memorial Foundation Inc. | 990PF | Officer | 2 | $0 | $0 | View return |
| 2016 | Wellcome Manor Family Services | 990 | Vice Preside | - | $0 | $0 | View return |
| 2015 | Aspirus Medford Hospital & Clinics Inc. | 990 | President/CEO | 40 | $356,291 | $0 | View return |
| 2015 | National Ohv Insurance and Services Group Inc | 990 | Board Member | 5 | $3,952 | $0 | View return |
| 2015 | Aspirus Medford Foundation Inc | 990 | Ex-Officio/Amhc CEO | 1 | $0 | $0 | View return |
| 2015 | Fulcrum Foundation Inc. | 990 | President | 1 | $0 | $0 | View return |
| 2015 | Wellcome Manor Family Services | 990 | Vice Preside | 2 | $0 | $0 | View return |
| 2015 | Olson Family Foundation Inc. | 990PF | Director | 0.5 | $0 | $0 | View return |
| 2015 | William S Olson Memorial Foundation Inc. | 990PF | Officer | 2 | $0 | $0 | View return |
| 2014 | Aspirus Medford Hospital & Clinics Inc. | 990 | President/CEO | 40 | $340,186 | $0 | View return |
| 2014 | Greenwood Cemetery Association of Monroe Wi | 990 | General Manager | 40 | $37,231 | $0 | View return |
| 2014 | Sumner Youth Services Inc. | 990PF | Chairman | 0 | $14,600 | $0 | View return |
| 2014 | Cedar Court Apartments | 990 | President | 1 | $0 | $340,185 | View return |
| 2014 | Aspirus Medford Foundation Inc | 990 | Ex-Officio/Mhf CEO | 1 | $0 | $340,185 | View return |
| 2014 | Fulcrum Foundation Inc. | 990 | President | 1 | $0 | $340,185 | View return |
| 2014 | Olson Family Foundation Inc. | 990PF | Director | 0.5 | $0 | $0 | View return |
| 2014 | Wellcome Manor Family Services | 990 | Vice President | 2 | $0 | $0 | View return |
| 2014 | William S Olson Memorial Foundation Inc. | 990PF | Officer | 2 | $0 | $0 | View return |
| 2013 | Greenwood Cemetery Association of Monroe Wi | 990 | General Manager | 40 | $36,402 | $0 | View return |
| 2013 | Wellcome Manor Family Services | 990 | Vice President | 2 | $0 | $0 | View return |
| 2013 | William S Olson Memorial Foundation Inc. | 990PF | Officer | 2 | $0 | $0 | View return |
| 2013 | Olson Family Foundation Inc. | 990PF | Director | 0.5 | $0 | $0 | View return |
| 2013 | Local 57 Iuoe Health and Welfare Fund | 990 | Trustee | 1 | $0 | $0 | View return |
| 2012 | William S Olson Memorial Foundation Inc. | 990PF | Officer | 2 | $0 | $0 | View return |
| 2011 | William S Olson Memorial Foundation Inc. | 990PF | Officer | 2 | $0 | $0 | View return |
| 2010 | William S Olson Memorial Foundation Inc. | 990PF | Officer | 2 | $0 | $0 | View return |