| 2025 | Cedarburg Cultural Center Inc. | 990 | Board Member | 2 | $0 | $0 | View return |
| 2024 | Cedarburg Cultural Center Inc. | 990 | Board Member | 2 | $0 | $0 | View return |
| 2024 | Wisconsin Inmate Education Association Inc. | 990 | Board Member | 1 | $0 | $0 | View return |
| 2024 | Sacramento Area Creeks Council | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | Katies Save | 990EZ | Secretary | 20 | $0 | - | View return |
| 2024 | Professionals in Christian Philanthropy | 990 | Chairman | 4 | $0 | $0 | View return |
| 2024 | North Dakota Troopers Association | 990EZ | President | 5 | $0 | - | View return |
| 2024 | People Loving People Inc. | 990 | Director | 2 | $0 | $0 | View return |
| 2024 | Bethany Christian Services Inc | 990 | Board Member | 0 | $0 | $0 | View return |
| 2024 | Mineral Lake Lions Foundation | 990EZ | Vice President | 4 | $0 | $0 | View return |
| 2024 | Steve and Laura Mayer Family Foundation | 990PF | Director/President/Treasur | 1 | $0 | $0 | View return |
| 2024 | Bethany Christian Services Inc. | 990 | Board Member | 2 | $0 | $0 | View return |
| 2023 | Wisconsin Inmate Education Association Inc. | 990 | Board Member | 1 | $0 | $0 | View return |
| 2023 | Cedarburg Cultural Center Inc. | 990 | Board Member | 2 | $0 | $0 | View return |
| 2023 | Rotary Club of Estero Foundation Inc. | 990EZ | President Elect | 2 | $0 | $0 | View return |
| 2023 | Sacramento Area Creeks Council | 990 | Vice President | 5 | $0 | $0 | View return |
| 2023 | Katies Save | 990EZ | Secretary | 20 | $0 | - | View return |
| 2023 | Rotary Club of Estero | 990EZ | President-Elect | 1 | $0 | $0 | View return |
| 2023 | Bethany Christian Services Inc. | 990 | Board Member | 2 | $0 | $0 | View return |
| 2023 | Bethany Christian Services Inc | 990 | Board Member | 0 | $0 | $0 | View return |
| 2023 | Mineral Lake Lions Foundation | 990 | President | 4 | $0 | $0 | View return |
| 2023 | Professionals in Christian Philanthropy | 990 | Chairman | 4 | $0 | $0 | View return |
| 2023 | Steve and Laura Mayer Family Foundation | 990PF | Director/President/Treasur | 1 | $0 | $0 | View return |
| 2023 | North Dakota Troopers Association | 990EZ | President | 2 | $0 | - | View return |
| 2022 | Wisconsin Inmate Education Association Inc. | 990 | Co-President | 1 | $0 | $0 | View return |
| 2022 | Mineral Lake Lions Foundation | 990EZ | President | 4 | $0 | $0 | View return |
| 2022 | Bethany Christian Services Inc | 990 | Board Member | 0 | $0 | $0 | View return |
| 2022 | Bethany Christian Services Inc. | 990 | Board Member | 2 | $0 | $0 | View return |
| 2022 | Steve and Laura Mayer Family Foundation | 990PF | Director/President/Treasur | 1 | $0 | $0 | View return |
| 2022 | Katies Save | 990PF | Secretary | 20 | $0 | - | View return |
| 2022 | International Association of Lions Clubs | 990EZ | President | 7 | $0 | $0 | View return |
| 2022 | Bemidji Community Theater | 990 | Member | 3 | $0 | $0 | View return |
| 2021 | Bemidji Community Theater | 990 | Member | 3 | $0 | $0 | View return |
| 2021 | Wisconsin Inmate Education Association Inc. | 990 | Co-Chairman | 1 | $0 | $0 | View return |
| 2021 | Bethany Christian Services Inc | 990 | Board Member | 0 | $0 | $0 | View return |
| 2021 | Bethany Christian Services Inc. | 990 | Board Member | 2 | $0 | $0 | View return |
| 2021 | North Dakota Troopers Association | 990EZ | President | 2 | $0 | - | View return |
| 2021 | Steve and Laura Mayer Family Foundation | 990PF | Director/President/Treasur | 1 | $0 | $0 | View return |
| 2020 | Steve and Laura Mayer Family Foundation | 990PF | Director/President/Treasur | 1 | $0 | $0 | View return |
| 2020 | Bethany Christian Services Inc | 990 | Board Member | 0 | $0 | $0 | View return |
| 2020 | Bethany Christian Services Inc. | 990 | Board Member | 2 | $0 | $0 | View return |
| 2020 | Bemidji Community Theater | 990 | Member | 2 | $0 | $0 | View return |
| 2020 | Wisconsin Inmate Education Association Inc. | 990 | Co-Chairman | 1 | $0 | $0 | View return |
| 2020 | North Dakota Troopers Association | 990EZ | President | 1 | $0 | - | View return |
| 2019 | Bemidji Community Theater | 990 | Member | 2 | $0 | $0 | View return |
| 2019 | Wisconsin Inmate Education Association Inc. | 990 | Co-Chairman | 1 | $0 | $0 | View return |
| 2019 | Steve and Laura Mayer Family Foundation | 990PF | Director/President/Treasur | 1 | $0 | $0 | View return |
| 2018 | Steve and Laura Mayer Family Foundation | 990PF | Director/President/Treasur | 1 | $0 | $0 | View return |
| 2018 | Landon School Corporation | 990 | Treasurer | 1.5 | $0 | $0 | View return |
| 2018 | Bemidji Community Theater | 990EZ | Member | 2 | $0 | $0 | View return |
| 2017 | Steve and Laura Mayer Family Foundation | 990PF | Director/President/Treasur | 1 | $0 | $0 | View return |
| 2017 | Bemidji Community Theater | 990EZ | Member | 2 | $0 | - | View return |
| 2017 | Landon School Corporation | 990 | Treasurer | 1.5 | $0 | $0 | View return |
| 2016 | Steve and Laura Mayer Family Foundation | 990PF | Director/President/Treasur | 1 | $0 | $0 | View return |
| 2015 | Gilbert Promotional Corporation | 990EZ | Director | 5 | $0 | - | View return |
| 2015 | Foundation for the National Institute of Health Inc. | 990 | Treasurer | 2 | $0 | $0 | View return |
| 2015 | Washington Education Association | 990 | Board Member | 5 | $0 | $0 | View return |
| 2015 | Landon School Corporation | 990 | Trustee | 1.5 | $0 | $0 | View return |
| 2015 | Helen & Leo Mayer Charitable Trust C/O Gilmorerees & Carlson PC | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2014 | California Academy of Appellate Lawyers Co Jon B Eisenberg Secry-Treas | 990EZ | President | 2 | $0 | - | View return |
| 2014 | Christian Camps Inc. | 990 | Secretary | 0 | $0 | $0 | View return |
| 2014 | Gilbert Promotional Corporation | 990EZ | Director | 5 | $0 | - | View return |
| 2014 | Helen & Leo Mayer Charitable Trust C/O Gilmorerees & Carlson PC | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2014 | Landon School Corporation | 990 | Trustee | 1.5 | $0 | $0 | View return |
| 2014 | Washington Education Association | 990 | Board Member | 5 | $0 | $0 | View return |
| 2014 | San Francisco Playhouse | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Gilbert Promotional Corporation | 990EZ | Treasurer | 10 | $0 | - | View return |
| 2013 | Angola Area Chamber of Commerce Inc | 990EZ | Director | 0.5 | $0 | - | View return |
| 2013 | Foundation for the National Institute of Health Inc. | 990 | Board Member | 0.5 | $0 | $0 | View return |
| 2013 | California Academy of Appellate Lawyers Co Jon B Eisenberg Secry-Treas | 990EZ | 1st Vice-Pres | 2 | $0 | - | View return |
| 2013 | Beverly Hills Bar Association | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Christian Camps Inc. | 990 | Secretary | 0 | $0 | $0 | View return |
| 2013 | Washington Education Association | 990 | Board Member | 5 | $0 | $0 | View return |
| 2013 | Helen & Leo Mayer Charitable Trust C/O Gilmorerees & Carlson PC | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2013 | Landon School Corporation | 990 | Trustee | 1.5 | $0 | $0 | View return |
| 2013 | San Francisco Playhouse | 990 | Director | 1 | $0 | $0 | View return |
| 2012 | Helen & Leo Mayer Charitable Trust C/O Gilmorerees & Carlson PC | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2011 | Helen & Leo Mayer Charitable Trust C/O Gilmorerees & Carlson PC | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2010 | Helen & Leo Mayer Charitable Trust C/O Gilmorerees & Carlson PC | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2009 | Helen & Leo Mayer Charitable Trust C/O Gilmorerees & Carlson PC | 990PF | Trustee | 1 | $0 | $0 | View return |