| 2024 | Climate United Fund | 990 | Chief Oper. Officers (From 09/24) | 40 | $100,930 | $0 | View return |
| 2024 | Healthalliance Hospital Marys Avenue Campus | 990 | COO | 1 | $0 | $1,411,857 | View return |
| 2024 | Healthalliance Hospital Broadway Campus | 990 | COO | 1 | $0 | $1,411,857 | View return |
| 2024 | Health Alliance Inc F/K/A/ Health Alliance Planning Inc | 990 | COO | 1 | $0 | $1,411,857 | View return |
| 2024 | Bon Secours Charity Health System Inc. | 990 | Board Member (Effective 11/2024) | 1 | $0 | $0 | View return |
| 2024 | American Federation of State County & Municipal Employees | 990EZ | Trustee | 0 | $0 | - | View return |
| 2024 | Smithtown Nursery School | 990EZ | President | 5 | $0 | $0 | View return |
| 2023 | American Federation of State County & Municipal Employees | 990EZ | Trustee | 0 | $0 | - | View return |
| 2022 | American Federation of State County & Municipal Employees | 990EZ | Trustee | 0 | $0 | - | View return |
| 2021 | Northern Metropolitan Hospital Association Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2019 | White Oak Land Conservation Society Inc C/O Anthony Costello Treasurer | 990 | Board Member | 2 | $0 | $0 | View return |
| 2019 | Naples Concert Band Inc Co Marilyn Hughes | 990EZ | Director | 1 | $0 | $0 | View return |
| 2019 | Ccres Inc | 990 | Treasurer | 4 | $0 | $0 | View return |
| 2018 | Costello Family Foundation Inc. | 990PF | Vice-Pres | 0 | $0 | $0 | View return |
| 2018 | Naples Concert Band Inc Co Marilyn Hughes | 990EZ | Director | 1 | $0 | $0 | View return |
| 2018 | White Oak Land Conservation Society Inc C/O Anthony Costello Treasurer | 990 | Board Member | 2 | $0 | $0 | View return |
| 2018 | Ccres Inc | 990 | Treasurer | 4 | $0 | $0 | View return |
| 2017 | Costello Family Foundation Inc. | 990PF | Vice-Pres | 0 | $0 | $0 | View return |
| 2017 | United States Bicycling Hall of Fame Inc. | 990EZ | Past President | 1 | $0 | - | View return |
| 2017 | White Oak Land Conservation Society Inc C/O Anthony Costello Treasurer | 990 | Treasurer | 2 | $0 | $0 | View return |
| 2017 | Naples Concert Band Inc Co Marilyn Hughes | 990EZ | Director | 1 | $0 | $0 | View return |
| 2017 | Ccres Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2016 | Ccres Inc | 990 | Director | 2 | - | - | View return |
| 2016 | Costello Family Foundation Inc. | 990PF | Vice-Pres | 1 | $0 | $0 | View return |
| 2016 | Naples Concert Band Inc Co Marilyn Hughes | 990EZ | Director | 1 | $0 | $0 | View return |
| 2016 | United States Bicycling Hall of Fame Inc. | 990EZ | Past President | 1 | $0 | - | View return |
| 2016 | White Oak Land Conservation Society Inc C/O Anthony Costello Treasurer | 990 | Treasurer | 2 | $0 | $0 | View return |
| 2015 | United States Bicycling Hall of Fame Inc. | 990EZ | Past President | 1 | $0 | - | View return |
| 2015 | Davis Roots Inc | 990EZ | President & CEO | 0 | $0 | - | View return |
| 2015 | Costello Family Foundation Inc. | 990PF | Vice-Pres | 1 | $0 | $0 | View return |
| 2015 | White Oak Land Conservation Society Inc C/O Anthony Costello Treasurer | 990 | Clerk | 2 | $0 | $0 | View return |
| 2015 | Ccres Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2014 | Ccres Inc | 990 | Director | 2 | $0 | $0 | View return |
| 2014 | Davis Roots Inc | 990EZ | President & CEO | 0 | $0 | - | View return |
| 2014 | Costello Family Foundation Inc. | 990PF | Vice-Pres | 1 | $0 | $0 | View return |
| 2014 | White Oak Land Conservation Society Inc C/O Anthony Costello Treasurer | 990 | Board Member | 1 | $0 | $0 | View return |
| 2014 | United States Bicycling Hall of Fame Inc. | 990EZ | Past President | 1 | $0 | - | View return |
| 2013 | White Oak Land Conservation Society Inc C/O Anthony Costello Treasurer | 990 | Treasurer | 4 | $0 | $0 | View return |
| 2013 | United States Bicycling Hall of Fame Inc. | 990EZ | President | 2 | $0 | - | View return |
| 2013 | Costello Family Foundation Inc. | 990PF | Vice-Pres | 1 | $0 | $0 | View return |
| 2013 | Haiti Library Foundation Inc | 990EZ | Secretary | 2 | $0 | - | View return |
| 2012 | Costello Family Foundation Inc. | 990PF | Vice-Pres | 1 | $0 | $0 | View return |
| 2011 | Costello Family Foundation Inc. | 990PF | Vice-Pres | 1 | $0 | $0 | View return |
| 2010 | Costello Family Foundation Inc. | 990PF | Vice-Pres | 1 | $0 | $0 | View return |