| 2025 | American Federation of Teachers | 990EZ | President | 5 | $3,500 | $0 | View return |
| 2024 | American Federation of Teachers | 990EZ | President | 10 | $3,000 | $0 | View return |
| 2024 | Grand Valley University Foundation | 990 | Director | 0.5 | $0 | $0 | View return |
| 2024 | American Federation of Labor & Congress of Industrial Orgs | 990EZ | Vice President | 1 | $0 | $0 | View return |
| 2024 | Kaminski Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2024 | Mercantile Bank Foundation | 990PF | Director (Through May 2024) | 1 | $0 | $0 | View return |
| 2024 | American Legion Post 180 | 990 | 3rd Vice COM | - | $0 | $0 | View return |
| 2024 | Saving Grace Perishable Food Rescue Inc. | 990 | Board Of Directors | 0 | $0 | $0 | View return |
| 2023 | American Federation of Teachers | 990EZ | President | 15 | $3,000 | $0 | View return |
| 2023 | American Legion Post 180 | 990 | 3rd Vice COM | 2 | $0 | $0 | View return |
| 2023 | Michigan Alliance for Business Growth | 990 | Board Member | 1 | $0 | $0 | View return |
| 2023 | Mercantile Bank Foundation | 990PF | Director | 2 | $0 | $0 | View return |
| 2023 | American Federation of Labor & Congress of Industrial Orgs | 990EZ | Vice President | 1 | $0 | $0 | View return |
| 2023 | Kaminski Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2023 | Grand Valley University Foundation | 990 | Director | 0.5 | $0 | $0 | View return |
| 2023 | Saving Grace Perishable Food Rescue Inc. | 990 | Board Of Directors | 0 | $0 | $0 | View return |
| 2022 | American Federation of Labor & Congress of Industrial Orgs | 990 | Vice Pres At | 1 | $0 | $0 | View return |
| 2022 | Michigan Alliance for Business Growth | 990 | Board Member | 1 | $0 | $0 | View return |
| 2022 | Kaminski Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2021 | Heart of West Michigan United Way | 990 | Board Chair | 4 | $0 | $0 | View return |
| 2021 | Kaminski Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2021 | Kaminski Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2021 | Michigan Alliance for Business Growth | 990 | Board Member | 1 | $0 | $0 | View return |
| 2021 | Southwestern Medical Foundation | 990 | Trustee | 0.25 | $0 | $0 | View return |
| 2021 | Mercantile Bank Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2020 | International Brotherhood of Electrical Workers | 990 | Exec. Bd. Director | 0.5 | $114 | $0 | View return |
| 2020 | Ibew 102 Holding Corp | 990 | Executive Board Director | 0.5 | $0 | $114 | View return |
| 2020 | International Brotherhood of Electrical Workers | 990 | Executive Board Director | 0.25 | $0 | $114 | View return |
| 2020 | Heart of West Michigan United Way | 990 | Board Chair | 4 | $0 | $0 | View return |
| 2020 | Kaminski Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2020 | Kaminski Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2020 | Southwestern Medical Foundation | 990 | Trustee | 0.25 | $0 | $0 | View return |
| 2020 | Michigan Alliance for Business Growth | 990 | Board Member | 1 | $0 | $0 | View return |
| 2020 | University School Alumni Association | 990 | Trustee | 1 | $0 | $0 | View return |
| 2019 | International Brotherhood of Electrical Workers | 990 | Exec. Bd. Director | 0.5 | $1,244 | $0 | View return |
| 2019 | International Brotherhood of Electrical Workers | 990 | Executive Board Director | 0.25 | $0 | $1,244 | View return |
| 2019 | Ibew 102 Holding Corp | 990 | Executive Board Director | 0.5 | $0 | $1,244 | View return |
| 2019 | Heart of West Michigan United Way | 990 | Board Vice Chair | 4 | $0 | $0 | View return |
| 2019 | Michigan Alliance for Business Growth | 990 | Board Member | 1 | $0 | $0 | View return |
| 2019 | Southwestern Medical Foundation | 990 | Trustee | 0.25 | $0 | $0 | View return |
| 2019 | Robert S & Mary Ann Kaminski Family Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2019 | Kaminski Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2019 | Kaminski Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2019 | Grand Rapids Youth Commonwealth Inc. | 990 | Director - P | 1 | $0 | $0 | View return |
| 2019 | University School Alumni Association | 990 | Trustee | 1 | $0 | $0 | View return |
| 2018 | International Brotherhood of Electrical Workers | 990 | Exec. Bd. Director | 0.5 | $1,115 | $0 | View return |
| 2018 | Ibew 102 Holding Corp | 990 | Executive Board Director | 0.5 | $0 | $1,115 | View return |
| 2018 | Heart of West Michigan United Way | 990 | Board Vice Chair | 4 | $0 | $0 | View return |
| 2018 | Kaminski Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2018 | Kaminski Family Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2018 | Southwestern Medical Foundation | 990 | Trustee | 0.25 | $0 | $0 | View return |
| 2018 | Grand Rapids Youth Commonwealth Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Michigan Alliance for Business Growth | 990 | Board Member | 1 | $0 | $0 | View return |
| 2018 | Robert S & Mary Ann Kaminski Family Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2018 | International Brotherhood of Electrical Workers | 990EZ | Exec. Bd. Director | 0.25 | $0 | $0 | View return |
| 2018 | University School Alumni Association | 990 | Trustee | 1 | $0 | $0 | View return |
| 2017 | International Brotherhood of Electrical Workers | 990 | Exec. Bd. Director | 0.5 | $900 | $0 | View return |
| 2017 | Ibew 102 Holding Corp | 990 | Executive Board Director | 0.5 | $0 | $900 | View return |
| 2017 | Heart of West Michigan United Way | 990 | Board Vice Chair | 4 | $0 | $0 | View return |
| 2017 | Grand Rapids Youth Commonwealth Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Michigan Alliance for Business Growth | 990 | Board Member | 1 | $0 | $0 | View return |
| 2017 | International Brotherhood of Electrical Workers | 990EZ | Exec. Bd. Director | 0.25 | $0 | - | View return |
| 2017 | Robert S & Mary Ann Kaminski Family Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2017 | Southwestern Medical Foundation | 990 | Trustee | 0.25 | $0 | $0 | View return |
| 2017 | University School Alumni Association | 990 | Trustee | 1 | $0 | $0 | View return |
| 2016 | International Brotherhood of Electrical Workers | 990 | Exec. Bd. Director | 0.5 | $825 | $0 | View return |
| 2016 | Ibew 102 Holding Corp | 990 | Executive Board Director | 0.5 | $0 | $825 | View return |
| 2016 | Heart of West Michigan United Way | 990 | Board Member | 1 | $0 | $0 | View return |
| 2016 | International Brotherhood of Electrical Workers | 990EZ | Exec. Bd. Director | 0.25 | $0 | - | View return |
| 2016 | Michigan Alliance for Business Growth | 990 | Board Member | 1 | $0 | $0 | View return |
| 2016 | Robert S & Mary Ann Kaminski Family Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2016 | Southwestern Medical Foundation | 990 | Trustee | 0.25 | $0 | $0 | View return |
| 2016 | Robert S & Mary Ann Kaminski Family Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2016 | Grand Rapids Youth Commonwealth Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | University School Alumni Association | 990 | Trustee | 1 | $0 | $0 | View return |
| 2015 | Ibew 102 Holding Corp | 990 | Executive Board Director | 0.5 | $0 | $0 | View return |
| 2015 | Southwestern Medical Foundation | 990 | Trustee | 0.25 | $0 | $0 | View return |
| 2015 | Grand Rapids Youth Commonwealth Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2015 | International Brotherhood of Electrical Workers | 990EZ | Exec. Bd. Director | 0.25 | $0 | - | View return |
| 2015 | Michigan Alliance for Business Growth | 990 | Board Member | 1 | $0 | $0 | View return |
| 2015 | International Brotherhood of Electrical Workers | 990 | Exec. Bd. Director | 0.5 | $0 | $0 | View return |
| 2015 | University School Alumni Association | 990 | Trustee | 1 | $0 | $0 | View return |
| 2014 | Michigan Alliance for Business Growth | 990 | Board Member | 1 | $0 | $0 | View return |
| 2014 | Southwestern Medical Foundation | 990 | Trustee | 0.3 | $0 | $0 | View return |
| 2014 | Grand Rapids Youth Commonwealth Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | University School Alumni Association | 990 | Trustee | 1 | $0 | $0 | View return |
| 2014 | Dallas Center for the Performing Arts Foundation Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Robert S & Mary Ann Kaminski Family Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2013 | Robert S & Mary Ann Kaminski Family Foundation | 990PF | Vice-President | 1 | $0 | $0 | View return |
| 2013 | Michigan Alliance for Business Growth | 990 | Board Member | 1 | $0 | $0 | View return |
| 2013 | Artists Creating Together Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Grand Rapids Youth Commonwealth Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Southwestern Medical Foundation | 990 | Trustee | 0.3 | $0 | $0 | View return |
| 2013 | Dallas Center for the Performing Arts Foundation Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2012 | Robert S & Mary Ann Kaminski Family Foundation | 990PF | President | 1 | $0 | - | View return |
| 2012 | Robert S & Mary Ann Kaminski Family Foundation | 990PF | Vice-President | 1 | $0 | - | View return |
| 2011 | Robert S & Mary Ann Kaminski Family Foundation | 990PF | President | 1 | $0 | $0 | View return |
| 2011 | Robert S & Mary Ann Kaminski Family Foundation | 990PF | Vice-President | 1 | $0 | $0 | View return |