| 2024 | Nicholas Center for Autism | 990 | Member | 40 | $78,465 | $0 | View return |
| 2023 | Nicholas Center for Autism | 990 | Member | 40 | $76,710 | $0 | View return |
| 2022 | Nicholas Center for Autism | 990 | Member | 40 | $59,236 | $0 | View return |
| 2022 | Spectrum Designs Foundation Ltd. | 990 | Board Member & Vice President | 4 | $0 | $0 | View return |
| 2021 | Nicholas Center for Autism | 990 | Member | 40 | $36,321 | $0 | View return |
| 2021 | Spectrum Designs Foundation Ltd. | 990 | Board Member & Vice Presid | 4 | $0 | $0 | View return |
| 2020 | Nicholas Center for Autism | 990 | Member | 40 | $17,040 | $0 | View return |
| 2020 | Spectrum Designs Foundation Ltd. | 990 | Board Member & Vice Presid | 4 | $0 | $0 | View return |
| 2019 | Nicholas Center for Autism | 990 | Member | 40 | $16,910 | $0 | View return |
| 2019 | Spectrum Designs Foundation Ltd. | 990 | Board Member & Vice President | 4 | $0 | $0 | View return |
| 2018 | Nicholas Center for Autism | 990 | Member | 20 | $16,909 | $0 | View return |
| 2018 | Spectrum Designs Foundation Ltd. | 990 | Vice President | 2 | $0 | $0 | View return |
| 2017 | Nicholas Center for Autism | 990 | Member | 20 | $16,200 | $0 | View return |
| 2017 | Spectrum Designs Foundation Ltd. | 990 | Vice President | 2 | $0 | $0 | View return |
| 2017 | Spectrum Designs Foundation Ltd. | 990 | Vice President | 2 | $0 | $0 | View return |
| 2016 | Spectrum Designs Foundation Ltd. | 990 | Vice President | 2 | $0 | $0 | View return |
| 2015 | Nicholas Center for Autism | 990 | President | 40 | $27,250 | $0 | View return |
| 2015 | Spectrum Designs Foundation Ltd. | 990 | President | 40 | $0 | $0 | View return |
| 2014 | Nicholas Center for Autism | 990 | President | 35 | $30,000 | $0 | View return |
| 2014 | Nicholas Center for Autism | 990 | President | 35 | $30,000 | $0 | View return |
| 2014 | Spectrum Designs Foundation Ltd. | 990 | President | 40 | $0 | $0 | View return |
| 2013 | Nicholas Center for Autism | 990 | President | 35 | $12,415 | $0 | View return |
| 2013 | Spectrum Designs Foundation Ltd. | 990 | President | 0 | $0 | $0 | View return |
| 2009 | Mike & Stella Spanakos Scholarship Fund Ltd | 990PF | V. President | 1 | $0 | $0 | View return |