| 2024 | Mielke Foundation Inc. | 990PF | President | 1 | $0 | $0 | View return |
| 2024 | Free Arts for Abused Children of New York City Inc. | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2024 | Wisconsin Southeastern Division Inc - Nmra | 990EZ | Director | 5 | $0 | $0 | View return |
| 2024 | Wisconsin Southeastern Division Inc - Nmra | 990EZ | Director | 5 | $0 | $0 | View return |
| 2023 | Heart Gallery of Tampa Inc. | 990 | President | 3 | $0 | $0 | View return |
| 2023 | Free Arts for Abused Children of New York City Inc. | 990 | Board Member | 1 | $0 | $0 | View return |
| 2023 | Germany Philatelic Society Inc. | 990EZ | Board Member | 10 | $0 | $0 | View return |
| 2023 | Mielke Foundation Inc. | 990PF | President | 1 | $0 | $0 | View return |
| 2022 | Free Arts for Abused Children of New York City Inc. | 990 | Board Member | 1 | $0 | $0 | View return |
| 2022 | Mielke Foundation Inc. | 990PF | President | 1 | $0 | $0 | View return |
| 2022 | Heart Gallery of Tampa Inc. | 990 | President | 3 | $0 | $0 | View return |
| 2022 | Germany Philatelic Society Inc. | 990EZ | Board Member | 10 | $0 | $0 | View return |
| 2022 | Mielke Foundation Inc. | 990PF | President | 1 | $0 | $0 | View return |
| 2021 | California Federation of Teachers Aft 8004 | 990 | Vice President | 5 | $1,000 | $0 | View return |
| 2021 | California Federation of Teachers Legal Defense Fund | 990 | Committee Member | 2 | $0 | $1,000 | View return |
| 2021 | Free Arts for Abused Children of New York City Inc. | 990 | Board Member | 1 | $0 | $0 | View return |
| 2021 | Heart Gallery of Tampa Inc. | 990 | Treasurer | 3 | $0 | $0 | View return |
| 2021 | Mielke Foundation Inc. | 990PF | President | 1 | $0 | $0 | View return |
| 2021 | Germany Philatelic Society Inc. | 990EZ | Board Member | 10 | $0 | - | View return |
| 2020 | California Federation of Teachers Aft 8004 | 990 | Vice President | 5 | $1,000 | $0 | View return |
| 2020 | Heart Gallery of Tampa Inc. | 990 | Treasurer | 3 | $0 | $0 | View return |
| 2020 | California Federation of Teachers Legal Defense Fund | 990 | Committee Member | 2 | $0 | $0 | View return |
| 2020 | Mielke Foundation Inc. | 990PF | President | 1 | $0 | $0 | View return |
| 2020 | Free Arts for Abused Children of New York City Inc. | 990 | Board Member | 1 | $0 | $0 | View return |
| 2020 | California Federation of Teachers Legal Defense Fund | 990 | Committee Member | 2 | $0 | $0 | View return |
| 2020 | Germany Philatelic Society Inc. | 990EZ | Board Member | 10 | $0 | $0 | View return |
| 2019 | Mielke Foundation Inc. | 990PF | President | 1 | $0 | $0 | View return |
| 2019 | California Federation of Teachers Legal Defense Fund | 990 | Committee Member | 2 | $0 | $0 | View return |
| 2019 | Heart Gallery of Tampa Inc. | 990 | Treasurer | 3 | $0 | $0 | View return |
| 2019 | California Federation of Teachers Aft 8004 | 990 | Vice President | 5 | $0 | $0 | View return |
| 2019 | Free Arts for Abused Children of New York City Inc. | 990 | Board Member | 1 | $0 | $0 | View return |
| 2019 | Germany Philatelic Society Inc. | 990EZ | Board Member | 10 | $0 | $0 | View return |
| 2019 | Culver City Federation of Teachers | 990 | President | - | $0 | $0 | View return |
| 2018 | California Federation of Teachers Aft 8004 | 990 | Vice President | 5 | $1,000 | $0 | View return |
| 2018 | California Federation of Teachers Legal Defense Fund | 990 | Committee Member | 2 | $0 | $1,000 | View return |
| 2018 | Heart Gallery of Tampa Inc. | 990 | Treasurer | 3 | $0 | $0 | View return |
| 2018 | Culver City Federation of Teachers | 990 | President | - | $0 | $0 | View return |
| 2018 | Free Arts for Abused Children of New York City Inc. | 990 | Board Member | 1 | $0 | $0 | View return |
| 2018 | Society of Chemical Manufacturers and Affiliates Inc | 990 | Governor | 2 | $0 | $0 | View return |
| 2017 | California Federation of Teachers Aft 8004 | 990 | Vice President | 5 | $500 | $0 | View return |
| 2017 | California Federation of Teachers Legal Defense Fund | 990 | Committee Member | 2 | $0 | $500 | View return |
| 2017 | Culver City Federation of Teachers | 990 | President | 20 | $0 | $0 | View return |
| 2017 | Heart Gallery of Tampa Inc. | 990EZ | Director | 3 | $0 | $0 | View return |
| 2017 | Free Arts for Abused Children of New York City Inc. | 990 | Board Member | 1 | $0 | $0 | View return |
| 2017 | Society of Chemical Manufacturers and Affiliates Inc | 990 | Governor | 2 | $0 | $0 | View return |
| 2016 | California Federation of Teachers Aft 8004 | 990 | Vice President | 5 | $1,500 | $0 | View return |
| 2016 | California Federation of Teachers Legal Defense Fund | 990 | Committee Member | 2 | $0 | $1,500 | View return |
| 2016 | Society of Chemical Manufacturers and Affiliates Inc | 990 | Governor | 2 | $0 | $0 | View return |
| 2016 | Free Arts for Abused Children of New York City Inc. | 990 | Board Member | 1 | $0 | $0 | View return |
| 2015 | Society of Chemical Manufacturers and Affiliates Inc | 990 | Governor | 2 | $0 | $0 | View return |
| 2015 | California Federation of Teachers Aft 8004 | 990 | Vice President | 5 | $0 | $0 | View return |
| 2015 | California Federation of Teachers Legal Defense Fund | 990 | Committee Member | 2 | $0 | $0 | View return |
| 2015 | Free Arts for Abused Children of New York City Inc. | 990 | Board Member | 1 | $0 | $0 | View return |
| 2014 | California Federation of Teachers Aft 8004 | 990 | Vice President | 5 | $1,000 | $0 | View return |
| 2014 | California Federation of Teachers Legal Defense Fund | 990 | Committee Member | 2 | $0 | $1,000 | View return |
| 2014 | Free Arts for Abused Children of New York City Inc. | 990 | Board Member | 1 | $0 | $0 | View return |
| 2014 | Society of Chemical Manufacturers and Affiliates Inc | 990 | Governor | 2 | $0 | $0 | View return |
| 2013 | National Center for Construction Education Research | 990 | Member | 0.38 | $0 | $0 | View return |
| 2013 | Free Arts for Abused Children of New York City Inc. | 990 | Board Member | 1 | $0 | $0 | View return |