| 2025 | Zenith Services Incorporated | 990 | CAO | 0.5 | $0 | $0 | View return |
| 2025 | The Gilbert & Sullivan Very Light Opera Company | 990EZ | Producer | 8 | $0 | $0 | View return |
| 2024 | The Gilbert & Sullivan Very Light Opera Company | 990EZ | Producer | 8 | $0 | $0 | View return |
| 2024 | Zenith Services Incorporated | 990 | CAO | 0.5 | $0 | $0 | View return |
| 2023 | Zenith Services Incorporated | 990 | CAO | 0.5 | $0 | $0 | View return |
| 2023 | The Gilbert & Sullivan Very Light Opera Company | 990EZ | Producer | 8 | $0 | $0 | View return |
| 2022 | The Gilbert & Sullivan Very Light Opera Company | 990EZ | Producer | 8 | $0 | $0 | View return |
| 2022 | Zenith Services Incorporated | 990 | CAO | 0.5 | $0 | $0 | View return |
| 2021 | Zenith Services Incorporated | 990 | CAO | 0.5 | $0 | $0 | View return |
| 2021 | The Gilbert & Sullivan Very Light Opera Company | 990EZ | Producer | 8 | $0 | $0 | View return |
| 2020 | The Gilbert & Sullivan Very Light Opera Company | 990EZ | Producer | 8 | $0 | $0 | View return |
| 2020 | Zenith Services Incorporated | 990 | CAO | 0.5 | $0 | $0 | View return |
| 2019 | Zenith Services Incorporated | 990 | CAO | 0.5 | $0 | $0 | View return |
| 2019 | The Gilbert & Sullivan Very Light Opera Company | 990EZ | Producer | 8 | $0 | $0 | View return |
| 2019 | Zenith Services Incorporated | 990 | CAO | 0.5 | $0 | $0 | View return |
| 2018 | Zenith Services Incorporated | 990 | CAO | 0.5 | $0 | $0 | View return |
| 2018 | The Gilbert & Sullivan Very Light Opera Company | 990EZ | Producer | 8 | $0 | $0 | View return |
| 2017 | The Gilbert & Sullivan Very Light Opera Company | 990EZ | Producer | 10 | $0 | $0 | View return |
| 2017 | Zenith Services Incorporated | 990 | CAO | 0.5 | $0 | $0 | View return |
| 2016 | The Gilbert & Sullivan Very Light Opera Company | 990EZ | Producer | 4 | $0 | $0 | View return |
| 2016 | Zenith Services Incorporated | 990 | CAO | 0.5 | $0 | $0 | View return |
| 2015 | The Gilbert & Sullivan Very Light Opera Company | 990EZ | Producer | 4 | $0 | $0 | View return |
| 2015 | Zenith Services Incorporated | 990 | CAO | 0.5 | $0 | $0 | View return |
| 2014 | The Gilbert & Sullivan Very Light Opera Company | 990EZ | Producer | 4 | $0 | - | View return |
| 2014 | Zenith Services Incorporated | 990 | CAO | 0.5 | $0 | $0 | View return |
| 2013 | The Gilbert & Sullivan Very Light Opera Company | 990EZ | Producer | 2 | $0 | $0 | View return |
| 2013 | Zenith Services Incorporated | 990 | CAO | 0.5 | $0 | $0 | View return |