| 2025 | Association of Lunar and Planetary Observers | 990 | Executive Director, President, Chair Board Director, Publications Coord. | 20 | $0 | $0 | View return |
| 2024 | United Brotherhood of Carpenters & | 990EZ | Recording Se | 0 | $674 | - | View return |
| 2024 | Robertson Family Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2024 | Timothy and Lisa Robertson Foundation | 990PF | President And Director | 2 | $0 | $0 | View return |
| 2024 | Aggregates and Concrete Association Of | 990EZ | President Retired 7/2024 | 1 | $0 | $0 | View return |
| 2024 | North Star Ministries Inc | 990PF | Secretary/Treasurer | 1 | $0 | $0 | View return |
| 2024 | Association of Lunar and Planetary Observers | 990 | Assoc. Exec. Dir., Vice President, Board Director | 20 | $0 | $0 | View return |
| 2024 | Delta Waterfowl Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2023 | North Valley Labor Federation | 990 | Former Executive Director | 0 | $30,000 | $0 | View return |
| 2023 | Delta Waterfowl Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2023 | Aggregates and Concrete Association Of | 990EZ | President | 1 | $0 | $0 | View return |
| 2023 | Timothy and Lisa Robertson Foundation | 990PF | President And Director | 2 | $0 | $0 | View return |
| 2023 | North Star Ministries Inc | 990PF | Secretary/Treasurer | 1 | $0 | $0 | View return |
| 2023 | Association of Lunar and Planetary Observers | 990 | Assoc. Exec. Dir., Board Director | 20 | $0 | $0 | View return |
| 2023 | Robertson Family Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2023 | Spiritual Roads Inc. | 990EZ | Director | 1 | $0 | - | View return |
| 2022 | North Valley Labor Federation | 990 | Former Executive Director | 40 | $104,686 | $0 | View return |
| 2022 | Timothy and Lisa Robertson Foundation | 990PF | President And Director | 2 | $0 | $0 | View return |
| 2022 | Robertson Family Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2022 | North Star Ministries Inc | 990PF | Secretary/Treasurer | 1 | $0 | $0 | View return |
| 2022 | Hope for a Better Tomorrow Foundation | 990EZ | President | 10 | $0 | $0 | View return |
| 2022 | Association of Lunar and Planetary Observers | 990EZ | Board Director | 20 | $0 | $0 | View return |
| 2022 | Delta Waterfowl Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2022 | United Way of Stanislaus County | 990 | Member | 1 | $0 | $0 | View return |
| 2022 | Spiritual Roads Inc. | 990EZ | Director | 1 | $0 | - | View return |
| 2021 | North Valley Labor Federation | 990 | Former Executive Director | 40 | $135,951 | $0 | View return |
| 2021 | Ricardo Water Supply Corporation | 990 | Director | 0 | $0 | $0 | View return |
| 2021 | Association of Lunar and Planetary Observers | 990EZ | Board Director | 20 | $0 | $0 | View return |
| 2021 | Robertson Family Foundation | 990PF | Vice President | 1 | $0 | $0 | View return |
| 2021 | Timothy and Lisa Robertson Foundation | 990PF | President And Director | 2 | $0 | $0 | View return |
| 2021 | North Star Ministries Inc | 990PF | Secretary/Treasurer | 1 | $0 | $0 | View return |
| 2021 | Delta Waterfowl Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2021 | Spiritual Roads Inc. | 990EZ | Director | 1 | $0 | - | View return |
| 2021 | United Way of Stanislaus County | 990 | Member | 1 | $0 | $0 | View return |
| 2021 | Hope for a Better Tomorrow Foundation | 990EZ | President | 10 | $0 | - | View return |
| 2020 | North Valley Labor Federation | 990 | Executive Director | 40 | $116,550 | $0 | View return |
| 2020 | Philmat Inc | 990 | Executive Director (Thru 06/21) | 40 | $108,186 | $0 | View return |
| 2020 | Association of Lunar and Planetary Observers | 990EZ | Board Director | 20 | $0 | $0 | View return |
| 2020 | Robertson Family Foundation | 990PF | Vice President/Director | 1 | $0 | $0 | View return |
| 2020 | North Star Ministries Inc | 990PF | Secretary/Treasurer | 1 | $0 | $0 | View return |
| 2020 | Timothy and Lisa Robertson Foundation | 990PF | President And Director | 2 | $0 | $0 | View return |
| 2020 | Delta Waterfowl Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2020 | United Way of Merced County Inc. | 990 | President | 1 | $0 | $0 | View return |
| 2020 | Spiritual Roads Inc. | 990EZ | Director | 1 | $0 | - | View return |
| 2020 | Delta Waterfowl Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2020 | United Way of Stanislaus County | 990 | Member | 1 | $0 | $0 | View return |
| 2019 | Philmat Inc | 990 | Executive Director | 40 | $102,479 | $0 | View return |
| 2019 | Robertson Family Foundation | 990PF | Vice-President/Director | 1 | $0 | $0 | View return |
| 2019 | Delta Waterfowl Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2019 | Timothy and Lisa Robertson Foundation | 990PF | President And Director | 2 | $0 | $0 | View return |
| 2019 | Spiritual Roads Inc. | 990EZ | Director | 1 | $0 | - | View return |
| 2018 | Philmat Inc | 990 | Executive Director | 50 | $100,617 | $0 | View return |
| 2018 | United Brotherhood of Carpenters & | 990EZ | President | 0 | $0 | - | View return |
| 2018 | Robertson Family Foundation | 990PF | Vice-President/Director | 1 | $0 | $0 | View return |
| 2018 | Delta Waterfowl Foundation | 990 | Director | 2 | $0 | $0 | View return |
| 2018 | Spiritual Roads Inc. | 990EZ | Director | 1 | $0 | - | View return |
| 2017 | Philmat Inc | 990 | Executive Director | 50 | $100,617 | $0 | View return |
| 2017 | Robertson Family Foundation | 990PF | Vice-President/Direc | 1 | $0 | $0 | View return |
| 2017 | Delta Waterfowl Foundation | 990 | Director (Starting March 2017) | 0.5 | $0 | $0 | View return |
| 2017 | United Brotherhood of Carpenters & | 990EZ | President | 0 | $0 | - | View return |
| 2017 | Spiritual Roads Inc. | 990EZ | Director | 1 | $0 | - | View return |
| 2016 | Philmat Inc | 990 | Executive Director | 50 | $100,041 | $0 | View return |
| 2016 | United Brotherhood of Carpenters & | 990EZ | President | 0 | $0 | - | View return |
| 2016 | Bethune Nursery School Inc. | 990 | Director | 5 | $0 | $0 | View return |
| 2016 | Robertson Family Foundation | 990PF | Secretary/Director | 1 | $0 | $0 | View return |
| 2016 | American Legion Cummings Behlke Post 226 | 990 | Chaplain | 0 | $0 | $0 | View return |
| 2015 | Philmat Inc | 990 | Executive Director | 50 | $100,614 | $0 | View return |
| 2015 | Hundred Nights Inc. | 990 | Trustee | 10 | $0 | $0 | View return |
| 2015 | North Star Ministries Inc | 990PF | Secretary/Treasurer | 1 | $0 | $0 | View return |
| 2015 | American Legion Cummings Behlke Post 226 | 990 | Chaplain | 0 | $0 | $0 | View return |
| 2015 | United Brotherhood of Carpenters & | 990 | President | - | $0 | $0 | View return |
| 2015 | Energy Conservation Associates Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2014 | Hundred Nights Inc. | 990 | Trustee | 10 | $0 | $0 | View return |
| 2014 | United Brotherhood of Carpenters & | 990 | President | 5 | $0 | $0 | View return |
| 2014 | Virginia Aquarium & Marine Science Center Foundation Inc. | 990 | Board Member | 0.2 | $0 | $0 | View return |
| 2014 | Montana Contractors' Association Health Care Trust | 990 | Trustee | 1 | $0 | $0 | View return |
| 2014 | Energy Conservation Associates Inc. | 990 | Director | 1 | $0 | $0 | View return |
| 2013 | Bethune Nursery School Inc. | 990 | Director | 5 | $0 | $0 | View return |
| 2013 | United Brotherhood of Carpenters & | 990 | President | 5 | $0 | $0 | View return |
| 2013 | Virginia Aquarium & Marine Science Center Foundation Inc. | 990 | - | 0.2 | $0 | $0 | View return |
| 2013 | Montana Contractors' Association Health Care Trust | 990 | Trustee | 1 | $0 | $0 | View return |