| 2024 | The Clique for Animals Inc | 990EZ | President | 5 | $5,887 | - | View return |
| 2024 | Greensprings Natural Cemetary Association | 990 | Trustee | 3 | $0 | $0 | View return |
| 2024 | Southern California Environmental Contractors Association | 990 | President | 1 | $0 | $0 | View return |
| 2024 | The Gregg Arthur Miller Foundation | 990PF | President | 0 | $0 | - | View return |
| 2024 | Kingsland Lake Lbj Chamber of Commerce | 990EZ | Director | 2 | $0 | $0 | View return |
| 2024 | Community Housing Partnership | 990 | Director | 3.5 | $0 | $0 | View return |
| 2024 | Round Rock Isd Education Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2024 | Joseph'S Coat Inc | 990 | Treasurer | - | $0 | $0 | View return |
| 2024 | Young Mens Christian Association of Central Texas | 990 | Board Chair | 3 | $0 | $0 | View return |
| 2024 | Spur - San Francisco Bay Area Planning and Urban Research Association | 990 | Board Member | 0 | $0 | $0 | View return |
| 2023 | Buncombe County Rescue Squad Inc. | 990 | Chief | 25 | $19,600 | $0 | View return |
| 2023 | Joseph'S Coat Inc | 990 | Treasurer | - | $0 | $0 | View return |
| 2023 | Ambulatory Surgery Center Association | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | The Clique for Animals Inc | 990EZ | President | 1 | $0 | - | View return |
| 2023 | Friendship Hook & Ladder Co #1 Inc | 990 | 2nd Vice President | 2 | $0 | $0 | View return |
| 2023 | The Miller Foundation | 990 | President | 2 | $0 | $0 | View return |
| 2023 | Southern California Environmental Contractors Association | 990 | President | 1 | $0 | $0 | View return |
| 2023 | Asca Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | The Gregg Arthur Miller Foundation | 990PF | President | 0 | $0 | - | View return |
| 2023 | Spur - San Francisco Bay Area Planning and Urban Research Association | 990 | San Francisco Board Of Directors | 0 | $0 | $0 | View return |
| 2023 | Round Rock Isd Education Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2023 | Community Health Center of Snohomish County | 990 | Board Member | 2 | $0 | $0 | View return |
| 2022 | Buncombe County Rescue Squad Inc. | 990 | Chief | 25 | $22,156 | $0 | View return |
| 2022 | Joseph'S Coat Inc | 990 | Treasurer | - | $0 | $0 | View return |
| 2022 | The Miller Foundation | 990 | President | 2 | $0 | $0 | View return |
| 2022 | Friendship Hook & Ladder Co #1 Inc | 990 | 2nd Vice President | 2 | $0 | $0 | View return |
| 2022 | Ambulatory Surgery Center Association | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Spur - San Francisco Bay Area Planning and Urban Research Association | 990 | Director | 0 | $0 | $0 | View return |
| 2022 | Southern California Environmental Contractors Association | 990 | President | 1 | $0 | $0 | View return |
| 2022 | The Gregg Arthur Miller Foundation | 990PF | President | 0 | $0 | - | View return |
| 2022 | Asca Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Round Rock Isd Education Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2021 | Round Rock Isd Education Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2021 | Joseph'S Coat Inc | 990 | Treasurer | - | $0 | $0 | View return |
| 2021 | Friendship Hook & Ladder Co #1 Inc | 990 | 2nd Vice President | 2 | $0 | $0 | View return |
| 2021 | Ambulatory Surgery Center Association | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | The Miller Foundation | 990 | President | 2 | $0 | $0 | View return |
| 2021 | Southern California Environmental Contractors Association | 990 | Vice President | 1 | $0 | $0 | View return |
| 2021 | Asca Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | The Gregg Arthur Miller Foundation | 990PF | President | 0 | $0 | - | View return |
| 2021 | Spur - San Francisco Bay Area Planning and Urban Research Association | 990 | Director | 0 | $0 | $0 | View return |
| 2020 | The Miller Foundation | 990 | President | 2 | $0 | $0 | View return |
| 2020 | The Gregg Arthur Miller Foundation | 990PF | President | 0 | $0 | - | View return |
| 2020 | Southern California Environmental Contractors Association | 990 | Vice President | 1 | $0 | $0 | View return |
| 2020 | Round Rock Isd Education Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2020 | Joseph'S Coat Inc | 990 | Board Member | - | $0 | $0 | View return |
| 2019 | Southern California Environmental Contractors Association | 990 | Vice President | 1 | $0 | $0 | View return |
| 2019 | The Miller Foundation | 990 | President | 2 | $0 | $0 | View return |
| 2019 | The Gregg Arthur Miller Foundation | 990PF | President | 0 | $0 | - | View return |
| 2019 | Round Rock Isd Education Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2019 | Joseph'S Coat Inc | 990 | Board Member | 1 | $0 | $0 | View return |
| 2018 | Round Rock Isd Education Foundation | 990 | Secretary | 2 | $0 | $0 | View return |
| 2018 | Joseph'S Coat Inc | 990 | Board Member | 1 | $0 | $0 | View return |
| 2018 | The Gregg Arthur Miller Foundation | 990PF | President | 0 | $0 | - | View return |
| 2018 | The Miller Foundation | 990 | President | 2 | $0 | $0 | View return |
| 2017 | The Gregg Arthur Miller Foundation | 990PF | President | 0 | $0 | - | View return |
| 2017 | Round Rock Isd Education Foundation | 990 | Secretary | 2 | $0 | $0 | View return |
| 2017 | Young Mens Christian Association of Central Texas | 990 | Director - Board Chair | 5 | $0 | $0 | View return |
| 2017 | The Miller Foundation | 990 | President | 100 | $0 | $0 | View return |
| 2017 | Southern California Environmental Contractors Association | 990 | Vice President | 1 | $0 | $0 | View return |
| 2017 | Joseph'S Coat Inc | 990 | Board Member | 1 | $0 | $0 | View return |
| 2016 | The Gregg Arthur Miller Foundation | 990PF | President | 0 | $0 | - | View return |
| 2016 | Cache Employment & Training Center | 990 | Board Member | - | $0 | $0 | View return |
| 2016 | Round Rock Isd Education Foundation | 990 | Secretary | 2 | $0 | $0 | View return |
| 2016 | Catalina Island Chamber of Commerce and Visitors Bureau | 990 | Director | 0.25 | $0 | $0 | View return |
| 2016 | Round Rock High School Baseball Booster Club Inc. | 990 | President | 1 | - | - | View return |
| 2015 | Cache Employment & Training Center | 990 | Board Member | - | $0 | $0 | View return |
| 2015 | The Gregg Arthur Miller Foundation | 990PF | President | 0 | $0 | - | View return |
| 2015 | Veterans of Foreign Wars of the United States Dept of Indiana | 990EZ | Trustee | 6 | $0 | - | View return |
| 2015 | Round Rock Isd Education Foundation | 990 | Past Preside | 2 | $0 | $0 | View return |
| 2014 | Joseph'S Coat Inc | 990 | Board Member | 2 | $0 | $0 | View return |
| 2014 | The Gregg Arthur Miller Foundation | 990PF | President | 0 | $0 | - | View return |
| 2014 | Cache Employment & Training Center | 990 | Board Member | - | $0 | $0 | View return |
| 2014 | Grafton Village History Association Inc | 990EZ | Trustee | 0 | $0 | $0 | View return |
| 2014 | Catalina Island Chamber of Commerce and Visitors Bureau | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | The Gregg Arthur Miller Foundation | 990PF | President | 0 | $0 | - | View return |
| 2013 | Grafton Village History Association Inc | 990EZ | Trustee | 0 | $0 | $0 | View return |
| 2013 | Joseph'S Coat Inc | 990 | Board Member | 2 | $0 | $0 | View return |
| 2013 | Cache Employment & Training Center | 990 | Board Member | - | $0 | $0 | View return |
| 2013 | Catalina Island Chamber of Commerce and Visitors Bureau | 990 | Director | 1 | $0 | $0 | View return |
| 2012 | The Gregg Arthur Miller Foundation | 990PF | President | 0 | $0 | - | View return |
| 2011 | The Gregg Arthur Miller Foundation | 990PF | President | 0 | $0 | - | View return |