| 2025 | Pellston Education Foundation | 990 | Trustee | 1 | $0 | $0 | View return |
| 2025 | All Because of Christ Missions Inc | 990EZ | Secretary | 10 | $0 | $0 | View return |
| 2024 | Duffey Family Foundation | 990PF | Director | 2 | $0 | - | View return |
| 2024 | Girl Talk Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | Laborers International Union of North America | 990 | Auditor | 1 | $0 | $0 | View return |
| 2024 | All Because of Christ Missions Inc | 990EZ | Secretary | 10 | $0 | $0 | View return |
| 2024 | The Duffey Foundation Inc | 990PF | President | 0 | $0 | - | View return |
| 2024 | National Association of Railroad Trial | 990 | Member | 0.1 | $0 | $0 | View return |
| 2023 | National Association of Railroad Trial | 990 | Member | 0.1 | $0 | $0 | View return |
| 2023 | Girl Talk Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | The Duffey Foundation Inc | 990PF | President | 0 | $0 | - | View return |
| 2023 | Duffey Family Foundation | 990PF | Director | 2 | $0 | - | View return |
| 2023 | Laborers International Union of North America | 990 | Auditor | 1 | $0 | $0 | View return |
| 2023 | All Because of Christ Missions Inc | 990EZ | Secretary | 10 | $0 | - | View return |
| 2023 | Friends of the Orphans D/B/A Nph-USA | 990 | Vice Chair | 2 | $0 | $0 | View return |
| 2023 | Little City Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2022 | The Duffey Foundation Inc | 990PF | President | 0 | $0 | - | View return |
| 2022 | Duffey Family Foundation | 990PF | Director | 2 | $0 | - | View return |
| 2022 | All Because of Christ Missions Inc | 990EZ | Secretary | 10 | $0 | - | View return |
| 2022 | National Association of Railroad Trial | 990 | Member | 0.1 | $0 | $0 | View return |
| 2022 | Little City Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2022 | Friends of the Orphans D/B/A Nph-USA | 990 | Vice Chair | 2 | $0 | $0 | View return |
| 2022 | American Legion Fletcher Mccollister Post # 135 | 990 | Chaplain | 20 | $0 | $0 | View return |
| 2022 | Friends of the Orphans D/B/A Nph-USA | 990 | Vice Chair | 2 | $0 | $0 | View return |
| 2021 | Construction General Laborers and Material Handlers Local No 1058 | 990 | Secretary/Treasurer (Former) | 0 | $11,465 | $0 | View return |
| 2021 | The Duffey Foundation Inc | 990PF | President | 0 | $0 | - | View return |
| 2021 | National Association of Railroad Trial | 990 | Member | 0.1 | $0 | $0 | View return |
| 2021 | All Because of Christ Missions Inc | 990EZ | Secretary | 10 | $0 | $0 | View return |
| 2021 | Little City Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2021 | Friends of the Orphans D/B/A Nph-USA | 990 | Vice Chair | 2 | $0 | $0 | View return |
| 2021 | Duffey Family Foundation | 990PF | Director | 2 | $0 | - | View return |
| 2021 | American Legion Fletcher Mccollister Post # 135 | 990 | Chaplain | 20 | $0 | $0 | View return |
| 2020 | Construction General Laborers and Material Handlers Local No 1058 | 990 | Secretary/Treasurer | 40 | $103,920 | $0 | View return |
| 2020 | The Duffey Foundation Inc | 990PF | President | 0 | $0 | - | View return |
| 2020 | All Because of Christ Missions Inc | 990EZ | Secretary | 10 | $0 | $0 | View return |
| 2020 | National Association of Railroad Trial | 990 | Member | 0.1 | $0 | $0 | View return |
| 2020 | Duffey Family Foundation | 990PF | Director | 2 | $0 | - | View return |
| 2020 | American Legion Fletcher Mccollister Post # 135 | 990 | Chaplain | 20 | $0 | $0 | View return |
| 2020 | George and Beth Wood Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2020 | Friends of the Orphans D/B/A Nph-USA | 990 | Treasurer | 2 | $0 | $0 | View return |
| 2020 | Little City Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2019 | Construction General Laborers and Material Handlers Local No 1058 | 990 | Secretary/Treasurer | 40 | $132,425 | $0 | View return |
| 2019 | Duffey Family Foundation | 990PF | Director | 2 | $0 | - | View return |
| 2019 | Friends of the Orphans D/B/A Nph-USA | 990 | Treasurer | 2 | $0 | $0 | View return |
| 2019 | The Duffey Foundation Inc | 990PF | President | 0 | $0 | - | View return |
| 2019 | George and Beth Wood Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2019 | Little City Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2019 | Fulton Industrial Development Assn C/O Paul Johnston | 990 | Executive Di | 5 | $0 | $0 | View return |
| 2019 | George and Beth Wood Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2018 | Construction General Laborers and Material Handlers Local No 1058 | 990 | Secretary/Treasurer | 40 | $103,898 | $0 | View return |
| 2018 | Friends of the Orphans D/B/A Nph-USA | 990 | Director | 2 | $0 | $0 | View return |
| 2018 | The Duffey Foundation Inc | 990PF | President | 0 | $0 | - | View return |
| 2018 | Duffey Family Foundation | 990PF | Director | 2 | $0 | - | View return |
| 2018 | George and Beth Wood Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2018 | Little City Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Fulton Industrial Development Assn C/O Paul Johnston | 990 | Executive Di | 0.5 | $0 | $0 | View return |
| 2018 | The Duffey Foundation Inc | 990PF | President | 0 | $0 | - | View return |
| 2017 | Construction General Laborers and Material Handlers Local No 1058 | 990 | Secretary/Treasurer | 40 | $101,958 | $0 | View return |
| 2017 | Colorado State University Research Foundation | 990 | Former Chairman (Thru 10/17) | 1 | $0 | $0 | View return |
| 2017 | All Because of Christ Missions Inc | 990EZ | Secretary | 10 | $0 | - | View return |
| 2017 | Little City Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | George and Beth Wood Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2017 | The Duffey Foundation Inc | 990PF | President | 0 | $0 | - | View return |
| 2016 | Construction General Laborers and Material Handlers Local No 1058 | 990 | Secretary/Treasurer | 40 | $97,161 | $0 | View return |
| 2016 | The Duffey Foundation Inc | 990PF | President | 0 | $0 | - | View return |
| 2016 | The Robert J Duffey Foundation | 990PF | Board Member | 1 | $0 | $0 | View return |
| 2016 | George and Beth Wood Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2016 | Colorado State University Research Foundation | 990 | Chairman | 1 | $0 | $0 | View return |
| 2016 | Baker County Little League Inc | 990 | Softball-Ump | - | $0 | $0 | View return |
| 2016 | Little City Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | Construction General Laborers and Material Handlers Local No 1058 | 990 | Secretary/Treasurer | 40 | $98,289 | $0 | View return |
| 2015 | Colorado State University Research Foundation | 990 | Chairman | 1 | $0 | $0 | View return |
| 2015 | The Robert J Duffey Foundation | 990PF | Board Member | 1 | $0 | $0 | View return |
| 2015 | The Duffey Foundation Inc | 990PF | President | 0 | $0 | - | View return |
| 2015 | Little City Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Construction General Laborers and Material Handlers Local No 1058 | 990 | Secretary/Treasurer | 40 | $96,482 | $0 | View return |
| 2014 | Colorado State University Research Foundation | 990 | Chairman | 1 | $0 | $0 | View return |
| 2014 | The Robert J Duffey Foundation | 990PF | Board Member | 1 | $0 | $0 | View return |
| 2014 | The Duffey Foundation Inc | 990PF | President | 0 | $0 | - | View return |
| 2014 | Little City Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Baker County Little League Inc | 990 | Softball-Ump | - | $0 | $0 | View return |
| 2013 | Construction General Laborers and Material Handlers Local No 1058 | 990 | Secretary/Treasurer | 40 | $101,047 | $0 | View return |
| 2013 | Colorado State University Research Foundation | 990 | Chairman | 1 | $0 | $0 | View return |
| 2013 | Little City Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | The Robert J Duffey Foundation | 990PF | Board Member | 1 | $0 | $0 | View return |
| 2013 | The Duffey Foundation Inc | 990PF | President | 0 | $0 | - | View return |
| 2013 | Baker County Little League Inc | 990 | Softball-Ump | - | $0 | $0 | View return |
| 2012 | The Duffey Foundation Inc | 990PF | President | 0 | $0 | - | View return |
| 2012 | The Robert J Duffey Foundation | 990PF | Board Member | 1 | $0 | $0 | View return |
| 2011 | The Robert J Duffey Foundation | 990PF | Board Member | 1 | $0 | $0 | View return |
| 2011 | The Duffey Foundation Inc | 990PF | President | 0 | $0 | - | View return |
| 2010 | The Robert J Duffey Foundation | 990PF | Board Member | 1 | $0 | $0 | View return |