| 2024 | Bill and Berniece Grewcock Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2024 | Heritage Services | 990 | Director | 1.5 | $0 | $0 | View return |
| 2024 | Omaha Development Council Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | Omaha Development Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2024 | Nebraska Medicine | 990 | Director (Treasurer) | 1 | $0 | $0 | View return |
| 2024 | Bruce E and Debra K Grewcock Foundation | 990PF | President, Treasurer | 1 | $0 | $0 | View return |
| 2024 | Chamber of Commerce of the USA | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | The Construction Industry Ethics and Compliance Initiative | 990 | Steering Committee Member | 0.5 | $0 | $0 | View return |
| 2023 | Heritage Services | 990 | Director | 1.5 | $0 | $0 | View return |
| 2023 | Bill and Berniece Grewcock Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2023 | Omaha Development Council Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Bruce E and Debra K Grewcock Foundation | 990PF | President, Treasurer | 1 | $0 | $0 | View return |
| 2023 | Omaha Development Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Chamber of Commerce of the USA | 990 | Director | 1 | $0 | $0 | View return |
| 2023 | Unmc Physicians (990) | 990 | Director (Treasurer) | 1 | $0 | $0 | View return |
| 2023 | The Nebraska Medical Center | 990 | Director (Treasurer) | 1 | $0 | $0 | View return |
| 2022 | Bill and Berniece Grewcock Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2022 | Omaha Development Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Heritage Services | 990 | Director | 1.5 | $0 | $0 | View return |
| 2022 | Bruce E and Debra K Grewcock Foundation | 990PF | President, Treasurer | 1 | $0 | $0 | View return |
| 2022 | Nebraska Game and Parks Foundation | 990 | Vice-President | 0 | $0 | $0 | View return |
| 2022 | Omaha Development Council Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | Chamber of Commerce of the USA | 990 | Director | 1 | $0 | $0 | View return |
| 2022 | The Construction Industry Ethics and Compliance Initiative | 990 | Steering Committee Member | 0.5 | $0 | $0 | View return |
| 2021 | Heritage Services | 990 | Director | 1.5 | $0 | $0 | View return |
| 2021 | Nebraska Game and Parks Foundation | 990 | Vice-President | 0 | $0 | $0 | View return |
| 2021 | The Construction Industry Ethics and Compliance Initiative | 990 | Steering Committee Member | 0.5 | $0 | $0 | View return |
| 2021 | Bruce E and Debra K Grewcock Foundation | 990PF | President, Treasurer | 1 | $0 | $0 | View return |
| 2021 | Bill and Berniece Grewcock Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2021 | Chamber of Commerce of the USA | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Omaha Development Council Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2021 | Omaha Development Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Bruce E and Debra K Grewcock Foundation | 990PF | President, Treasurer | 1 | $0 | $0 | View return |
| 2020 | Nebraska Medicine | 990 | Director (Treasurer) | 1 | $0 | $0 | View return |
| 2020 | Bill and Berniece Grewcock Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2020 | Heritage Services | 990 | Director | 1.5 | $0 | $0 | View return |
| 2020 | The Construction Industry Ethics and Compliance Initiative | 990 | Steering Committee Member | 0.5 | $0 | $0 | View return |
| 2020 | Omaha Development Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Omaha Development Council Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Chamber of Commerce of the USA | 990 | Director | 1 | $0 | $0 | View return |
| 2020 | Colorado School of Mines Foundation Inc | 990 | At Large | 1 | $0 | $0 | View return |
| 2020 | Nebraska Game and Parks Foundation | 990 | Vice-President | 0 | $0 | $0 | View return |
| 2019 | Bruce E and Debra K Grewcock Foundation | 990PF | President, Treasurer | 1 | $0 | $0 | View return |
| 2019 | The Construction Industry Ethics and Compliance Initiative | 990 | Steering Committee Member | 0.5 | $0 | $0 | View return |
| 2019 | Heritage Services | 990 | Director | 1.5 | $0 | $0 | View return |
| 2019 | Omaha Development Foundation | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Nebraska Medicine | 990 | Director (Treasurer) | 1 | $0 | $0 | View return |
| 2019 | Chamber of Commerce of the USA | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | Nebraska Game and Parks Foundation | 990 | Vice-President | 0 | $0 | $0 | View return |
| 2019 | Bill and Berniece Grewcock Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2019 | Omaha Development Council Inc | 990 | Director | 1 | $0 | $0 | View return |
| 2019 | The Nebraska Medical Center | 990 | Director (Treasurer) | 1 | $0 | $0 | View return |
| 2019 | Colorado School of Mines Foundation Inc | 990 | At Large | 1 | $0 | $0 | View return |
| 2019 | Unmc Physicians (990) | 990 | Director (Treasurer) | 1 | $0 | $0 | View return |
| 2018 | Bill and Berniece Grewcock Foundation | 990PF | Director | 1 | $0 | $0 | View return |
| 2018 | Bruce E and Debra K Grewcock Foundation | 990PF | President, Treasurer | 1 | $0 | $0 | View return |
| 2018 | Nebraska Medicine | 990 | Director (Treasurer) | 1 | $0 | $0 | View return |
| 2018 | The Construction Industry Ethics and Compliance Initiative | 990 | Steering Committee Member | 0.5 | $0 | $0 | View return |
| 2018 | Nebraska Game and Parks Foundation | 990 | Vice-President | 0 | $0 | $0 | View return |
| 2018 | Unmc Physicians (990) | 990 | Director (Treasurer) | 1 | $0 | $0 | View return |
| 2018 | The Nebraska Medical Center | 990 | Director (Treasurer) | 1 | $0 | $0 | View return |
| 2018 | Colorado School of Mines Foundation Inc | 990 | At Large | 1 | $0 | $0 | View return |
| 2018 | Bruce E and Debra K Grewcock Foundation | 990PF | President, Treasurer | 1 | $0 | $0 | View return |
| 2017 | Bruce E and Debra K Grewcock Foundation | 990PF | President, Treasurer | 1 | $0 | $0 | View return |
| 2017 | Nebraska Game and Parks Foundation | 990 | Vice-President | 0 | $0 | $0 | View return |
| 2017 | The Construction Industry Ethics and Compliance Initiative | 990 | Steering Committee Member | 0.5 | $0 | $0 | View return |
| 2017 | Nebraska Medicine | 990EZ | Director (Treasurer) | 1 | $0 | $0 | View return |
| 2017 | Colorado School of Mines Foundation Inc | 990 | At Large | 1 | $0 | $0 | View return |
| 2017 | Bill and Berniece Grewcock Foundation | 990PF | Director | 0 | $0 | $0 | View return |
| 2017 | Unmc Physicians (990) | 990 | Director (Treasurer) | 1 | $0 | $0 | View return |
| 2017 | Unmc Physicians (990) | 990 | Director (Treasurer) | 1 | $0 | $0 | View return |
| 2017 | The Nebraska Medical Center | 990 | Director (Treasurer) | 1 | $0 | $0 | View return |
| 2017 | The Nebraska Medical Center | 990 | Director (Treasurer) | 1 | $0 | $0 | View return |
| 2017 | Unmc Physicians (990) | 990 | Director (Treasurer) | 1 | $0 | $0 | View return |
| 2016 | Bill and Berniece Grewcock Foundation | 990PF | Director | 0 | $0 | $0 | View return |
| 2016 | Bruce E and Debra K Grewcock Foundation | 990PF | President, Treasurer | 1 | $0 | $0 | View return |
| 2016 | The Construction Industry Ethics and Compliance Initiative | 990 | Steering Committee Member | 0.5 | $0 | $0 | View return |
| 2016 | Nebraska Game and Parks Foundation | 990 | Vice-President | 0 | $0 | $0 | View return |
| 2016 | Colorado School of Mines Foundation Inc | 990 | At Large | 1 | $0 | $0 | View return |
| 2016 | The Nebraska Medical Center | 990 | Director (Treasurer) | 1 | $0 | $0 | View return |
| 2016 | Unmc Physicians (990) | 990 | Director (Treasurer) | 1 | $0 | $0 | View return |
| 2015 | Bill and Berniece Grewcock Foundation | 990PF | Director | 0 | $0 | $0 | View return |
| 2015 | Bruce E and Debra K Grewcock Foundation | 990PF | President, Treasurer | 1 | $0 | $0 | View return |
| 2015 | The Construction Industry Ethics and Compliance Initiative | 990 | Steering Committee Member | 0.5 | $0 | $0 | View return |
| 2015 | The Nebraska Medical Center | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2014 | Bill and Berniece Grewcock Foundation | 990PF | Director | 0 | $0 | $0 | View return |
| 2014 | The Construction Industry Ethics and Compliance Initiative | 990 | Steering Committee Member | 0.5 | $0 | $0 | View return |
| 2014 | Bruce E and Debra K Grewcock Foundation | 990PF | President, Treasurer | 1 | $0 | $0 | View return |
| 2014 | The Nebraska Medical Center | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2013 | The Construction Industry Ethics and Compliance Initiative | 990 | Steering Committee Member | 0.5 | $0 | $0 | View return |
| 2013 | Knights of Aksarben Foundation | 990 | Governor | 0.5 | $0 | $0 | View return |
| 2013 | Bill and Berniece Grewcock Foundation | 990PF | Director | 0 | $0 | $0 | View return |
| 2013 | The Nebraska Medical Center | 990 | Treasurer | 1 | $0 | $0 | View return |
| 2012 | Bill and Berniece Grewcock Foundation | 990PF | Director | 0 | $0 | $0 | View return |
| 2011 | Bill and Berniece Grewcock Foundation | 990PF | Director | 0 | $0 | $0 | View return |
| 2010 | Bill and Berniece Grewcock Foundation | 990PF | Director | 0 | $0 | $0 | View return |