| 2024 | Laborers' International Union | 990 | Former General President (Retired 4/30/23) | 5 | $474,905 | $0 | View return |
| 2024 | Terence J O'Sullivan Liuna Charitable | 990 | Director | 0.5 | $0 | $474,905 | View return |
| 2024 | The Enrico Foundation | 990PF | Treasurer | 0 | $0 | $0 | View return |
| 2024 | Will'S Good Works Foundation Inc | 990EZ | President | 2 | $0 | $0 | View return |
| 2024 | DC Friends of Ireland | 990EZ | Chairman | 0.25 | $0 | $0 | View return |
| 2023 | Laborers' International Union | 990 | Former General President | 60 | $1,233,066 | $0 | View return |
| 2023 | Aquidneck Land Trust | 990 | Executive Director | 40 | $67,411 | $0 | View return |
| 2023 | Terence J O'Sullivan Liuna Charitable | 990 | Chairman (Thru Aug 2023), Director | 1 | $0 | $1,233,066 | View return |
| 2023 | DC Friends of Ireland | 990 | Chairman | 0.25 | $0 | $0 | View return |
| 2023 | Liuna Training and Education Fund | 990 | Co-Chairman (To 4/23) | 3 | $0 | $0 | View return |
| 2023 | Will'S Good Works Foundation Inc | 990EZ | President | 2 | $0 | $0 | View return |
| 2023 | The Enrico Foundation | 990PF | Treasurer | 0 | $0 | $0 | View return |
| 2023 | Rim of the World Educational Foundation | 990EZ | Member | 2 | $0 | $0 | View return |
| 2022 | Laborers' International Union | 990 | General President | 60 | $856,607 | $0 | View return |
| 2022 | Terence J O'Sullivan Liuna Charitable | 990 | President | 1 | $0 | $856,607 | View return |
| 2022 | Will'S Good Works Foundation Inc | 990EZ | President | 2 | $0 | $0 | View return |
| 2022 | Liuna Training and Education Fund | 990 | Co-Chairman | 3 | $0 | $0 | View return |
| 2022 | Transportation Trades Department | 990 | President | 1 | $0 | $0 | View return |
| 2022 | DC Friends of Ireland | 990 | Chairman | 0.25 | $0 | $0 | View return |
| 2022 | The Enrico Foundation | 990PF | Treasurer | 0 | $0 | $0 | View return |
| 2022 | Aquidneck Land Trust | 990 | Executive Director (As Of 9/23) | 40 | $0 | $0 | View return |
| 2021 | Laborers' International Union | 990 | General President | 60 | $819,035 | $0 | View return |
| 2021 | Terence J O'Sullivan Liuna Charitable | 990 | President | 1 | $0 | $819,035 | View return |
| 2021 | DC Friends of Ireland | 990 | Chairman | 0.25 | $0 | $0 | View return |
| 2021 | Washington Association of Realtors | 990 | Past President | 1 | $0 | $0 | View return |
| 2021 | Liuna Training and Education Fund | 990 | Co-Chairman | 3 | $0 | $0 | View return |
| 2021 | The Enrico Foundation | 990PF | Treasurer | 0 | $0 | $0 | View return |
| 2021 | Will'S Good Works Foundation Inc | 990EZ | President | 2 | $0 | $0 | View return |
| 2020 | Laborers' International Union | 990 | General President | 60 | $806,877 | $0 | View return |
| 2020 | Terence J O'Sullivan Liuna Charitable | 990 | President | 1 | $0 | $806,877 | View return |
| 2020 | Liuna Training and Education Fund | 990 | Co-Chairman | 3 | $0 | $0 | View return |
| 2020 | Washington Association of Realtors | 990 | Past President | 1 | $0 | $0 | View return |
| 2020 | The Enrico Foundation | 990PF | Treasurer | 0 | $0 | $0 | View return |
| 2020 | Will'S Good Works Foundation Inc | 990EZ | President | 2 | $0 | $0 | View return |
| 2020 | DC Friends of Ireland | 990 | Chairman | 0.25 | $0 | $0 | View return |
| 2019 | Laborers' International Union | 990 | General President | 60 | $794,937 | $0 | View return |
| 2019 | Terence J O'Sullivan Liuna Charitable | 990 | President | 1 | $0 | $794,937 | View return |
| 2019 | Washington Association of Realtors | 990 | Past President | 1 | $0 | $0 | View return |
| 2019 | DC Friends of Ireland | 990EZ | Chairman | 0.25 | $0 | $0 | View return |
| 2019 | Liuna Training and Education Fund | 990 | Co-Chairman | 3 | $0 | $0 | View return |
| 2019 | Will'S Good Works Foundation Inc | 990EZ | President | 2 | $0 | $0 | View return |
| 2019 | John Carroll University | 990 | Director | 1 | $0 | $0 | View return |
| 2018 | Laborers' International Union | 990 | General President | 60 | $757,359 | $0 | View return |
| 2018 | Terence J O'Sullivan Liuna Charitable | 990 | President | 1 | $0 | $757,359 | View return |
| 2018 | Liuna Training and Education Fund | 990 | Co-Chairman | 3 | $0 | $0 | View return |
| 2018 | Foundation for Angelman Syndrome Therapeutics | 990 | Financial Officer | 3 | $0 | $0 | View return |
| 2018 | DC Friends of Ireland | 990EZ | Chairman | 0.25 | $0 | $0 | View return |
| 2018 | Washington Association of Realtors | 990 | Past President | 1 | $0 | $0 | View return |
| 2018 | Will'S Good Works Foundation Inc | 990EZ | President | 2 | $0 | $0 | View return |
| 2018 | John Carroll University | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Laborers' International Union | 990 | General President | 60 | $776,339 | $0 | View return |
| 2017 | Washington Association of Realtors | 990 | Past President | 1 | $0 | $0 | View return |
| 2017 | Liuna Training and Education Fund | 990 | Co-Chairman | 3 | $0 | $0 | View return |
| 2017 | Foundation for Angelman Syndrome Therapeutics | 990 | Financial Officer | 3 | $0 | $0 | View return |
| 2017 | Will'S Good Works Foundation Inc | 990EZ | President | 2 | $0 | $0 | View return |
| 2017 | DC Friends of Ireland | 990EZ | Chairman | 0.25 | $0 | $0 | View return |
| 2017 | Leigh and Mary Carter Family Foundation | 990PF | Treasurer & Trustee | 0 | $0 | $0 | View return |
| 2017 | John Carroll University | 990 | Director | 1 | $0 | $0 | View return |
| 2017 | Mount Airy - Parrs Ridge Elementary Schools PTO | 990EZ | Treasurer | 2 | $0 | $0 | View return |
| 2016 | Laborers' International Union | 990 | General President | 60 | $718,861 | $0 | View return |
| 2016 | Terence J O'Sullivan Liuna Charitable | 990 | President | 1 | $0 | $718,861 | View return |
| 2016 | Foundation for Angelman Syndrome Therapeutics | 990 | Financial Officer | 3 | $0 | $0 | View return |
| 2016 | America'S Agenda Healthcare for All | 990 | Director | 1 | $0 | $0 | View return |
| 2016 | Washington Association of Realtors | 990 | Past President | 1 | $0 | $0 | View return |
| 2016 | Kenny King Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2016 | DC Friends of Ireland | 990EZ | Chairman | 0.25 | $0 | $0 | View return |
| 2016 | Leigh and Mary Carter Family Foundation | 990PF | Treasurer & Trustee | 0 | $0 | $0 | View return |
| 2016 | Will'S Good Works Foundation Inc | 990 | President | 2 | $0 | $0 | View return |
| 2016 | Liuna Training and Education Fund | 990 | Co-Chairman | 3 | $0 | $0 | View return |
| 2016 | John Carroll University | 990 | Director | 2 | $0 | $0 | View return |
| 2015 | Laborers' International Union | 990 | General President | 60 | $670,934 | $0 | View return |
| 2015 | Terence J O'Sullivan Liuna Charitable | 990 | President | 1 | $0 | $670,934 | View return |
| 2015 | Leigh and Mary Carter Family Foundation | 990PF | Treasurer & Trustee | 0 | $0 | $0 | View return |
| 2015 | The Enrico Foundation | 990PF | Treasurer | 0 | $0 | $0 | View return |
| 2015 | DC Friends of Ireland | 990EZ | Chairman | 0.25 | $0 | $0 | View return |
| 2015 | DC Friends of Ireland | 990EZ | President Emeritus | 0.25 | $0 | $0 | View return |
| 2015 | Will'S Good Works Foundation Inc | 990 | President | 3 | $0 | $0 | View return |
| 2015 | Kenny King Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2015 | America'S Agenda Healthcare for All | 990 | Director | 0 | $0 | $0 | View return |
| 2015 | Liuna Training and Education Fund | 990 | Co-Chairman | 3 | $0 | $0 | View return |
| 2015 | Foundation for Angelman Syndrome Therapeutics | 990 | Financial Officer | 3 | $0 | $0 | View return |
| 2015 | John Carroll University | 990 | Director | 2 | $0 | $0 | View return |
| 2014 | Laborers' International Union | 990 | General President | 60 | $670,907 | $0 | View return |
| 2014 | Liuna Training and Education Fund | 990 | Co-Chairman | 3 | $0 | $0 | View return |
| 2014 | Kenny King Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2014 | The Enrico Foundation | 990PF | Treasurer | 0 | $0 | $0 | View return |
| 2014 | America'S Agenda Healthcare for All | 990 | Director | 0 | $0 | $0 | View return |
| 2014 | Leigh and Mary Carter Family Foundation | 990PF | Treasurer & Trustee | 0 | $0 | $0 | View return |
| 2014 | DC Friends of Ireland | 990EZ | Chairman | 0.25 | $0 | $0 | View return |
| 2014 | DC Friends of Ireland | 990EZ | President Emeritus | 0.25 | $0 | $0 | View return |
| 2014 | Will'S Good Works Foundation Inc | 990 | President | 3 | $0 | $0 | View return |
| 2014 | Foundation for Angelman Syndrome Therapeutics | 990 | Financial Officer | 3 | $0 | $0 | View return |
| 2013 | Laborers' International Union | 990 | General President | 60 | $631,615 | $0 | View return |
| 2013 | Will'S Good Works Foundation Inc | 990 | Trustee, President & Treas | 2 | $0 | $0 | View return |
| 2013 | The Aaron and Catie Enrico Family Foundation | 990PF | Secretary, T | 1 | $0 | $0 | View return |
| 2013 | Kenny King Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2013 | Foundation for Angelman Syndrome Therapeutics | 990 | Financial Officer | 3 | $0 | $0 | View return |
| 2013 | Leigh and Mary Carter Family Foundation | 990PF | Treasurer & | 0 | $0 | $0 | View return |
| 2013 | Liuna Training and Education Fund | 990 | Co-Chairman | 3 | $0 | $0 | View return |
| 2013 | DC Friends of Ireland | 990EZ | Chairman | 0.25 | $0 | $0 | View return |
| 2013 | DC Friends of Ireland | 990EZ | President Emeritus | 0.25 | $0 | $0 | View return |
| 2013 | The Enrico Foundation | 990PF | Treasurer | 0 | $0 | $0 | View return |
| 2013 | New York Friends of Ireland Inc | 990EZ | President | 10 | $0 | - | View return |
| 2013 | National Association of Realtors | 990 | Director | 1 | $0 | $0 | View return |
| 2012 | Leigh and Mary Carter Family Foundation | 990PF | Treasurer & Trustee | 0 | $0 | $0 | View return |
| 2012 | Kenny King Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2012 | The Aaron and Catie Enrico Family Foundation | 990PF | Secretary, Treasurer & Director | 0 | $0 | $0 | View return |
| 2012 | The Enrico Foundation | 990PF | Treasurer | 0 | $0 | $0 | View return |
| 2011 | Leigh and Mary Carter Family Foundation | 990PF | Treasurer & Trustee | 0 | $0 | $0 | View return |
| 2011 | Kenny King Foundation | 990PF | Trustee | 0 | $0 | $0 | View return |
| 2011 | The Enrico Foundation | 990PF | Treasurer | 0 | $0 | $0 | View return |
| 2011 | The Aaron and Catie Enrico Family Foundation | 990PF | Secretary, Treasurer & Director | 0 | $0 | $0 | View return |
| 2010 | Leigh and Mary Carter Family Foundation | 990PF | Treasurer & Trustee | 0 | $0 | $0 | View return |
| 2010 | The Aaron and Catie Enrico Family Foundation | 990PF | Secretary, Treasurer & Director | 0 | $0 | $0 | View return |
| 2010 | The Enrico Foundation | 990PF | Treasurer | 0 | $0 | $0 | View return |